Translate

Guide to Patagonia's Monsters & Mysterious beings

I have written a book on this intriguing subject which has just been published.
In this blog I will post excerpts and other interesting texts on this fascinating subject.

Austin Whittall


Showing posts with label nahuelito. Show all posts
Showing posts with label nahuelito. Show all posts

Wednesday, March 25, 2026

Nahuel Huapi (waves or creature?)


Leaving my series of posts on Denisovans, Neanderthals and modern humans, this post will go back to the basics of this blog, Patagonian "monsters". The video in the link below is captioned "Strange Lights in the Nahuel Huapi", it shows what in my opinion is a wave front on a calm lake, seen from a mountain called Cerro Otto (street view from the mountain), overlooking the lake Nahuel Huapi in Bariloche, Argentina. It was published on August 27, 2025.


The "lights" are the reflection of the sun on these waves. This is the link to the Youtube video shown below.


No monster, just a wave.

It could be a soliton or the wake of a boat on the other side of the lake.



Patagonian Monsters - Cryptozoology, Myths & legends in Patagonia Copyright 2009-2026 by Austin Whittall © 

Tuesday, September 16, 2025

Garrett: The first sighting of "Nahuelito"


The first reference about Nahuelito, was published in 1922, during the media uproar following the news about a live plesiosaur in Patagonia. Which of course turned out to be unfounded (these reptiles died out with the dinosaurs 65 million years ago.)


Mr. George Garret


There are countless references on the Internet about a Mr. Garrett who lived or worked in a ranch or a company in the area and who saw the monster back in 1910. I have also mentioned him in my book. However I have asked myself if he really existed.


The story is that he was working for a company by Lake Nahuel Huapi in 1910. At that time the town of San Carlos de Bariloche was a small village, 15-years-old, and there were no roads in the region, mostly trails. It took four days to ride the 120 km (75 mi) between Villa la Angostura and Bariloche. No wonder most goods, lumber, cattle, horses and people moved by boat across the lake.


George Garret is quoted as saying the following:


...we were beating windward up an inlet called 'Pass Coytrue,' which bounded the peninsula. This inlet was about five miles in length, a mile or so in width, and of an unfathomable depth. Just as we were near the rocky shore of the peninsula, before tacking, I happened to look astern towards the centre of the inlet, and, to my great surprise, I saw about a quarter of a mile to leeward, an object which appeared to be 15 or 20 feet in diameter, and perhaps six feet above the water. After a few minutes, the monster disappeared. On mentioning my experience to my neighbours... they said the Indians often spoke of immense water animals they had seen from time to time."


The quote above is said to have come from an article in the Toronto Globe, published on April 6, 1922, twelve years after this sighting took place (source). I have never been able to see the original article in the newspaper.


Pass Coytrue, does not exist, but the inlet mentioned is no other than the Huemul arm of the lake, at the base of the arm, is Paso Coihue. So it is the right spot! Below is an aerial view of the Huemul Arm, looking towards the SW (north is to the left).


Brazo Huemul lago Nahuel Huapi
Huemul Arm, lake Nahuel Huap

Paso Coihue is at the base of the arm, in the distance. Below is a map I prepared, showing the same view:



There are references to a Garrett family settling in this area:


  • "the inhabitants of the Huemul Peninsula area and to the east, up to the Limay River, mostly English speakers like the Bell, Newbery, Garrett, Jones and Neil families". Source
  • "Some writings report that well-known settlers around the lake had their own sailing vessels, for example: Millaqueo, Tauscheck, Eggers, Garrett, Potthoff, Macías, Nahuelquín, used mainly for transport and transfers.". Source
  • "Easton Garrett, having sold it. E. Garrett, settler and associated with the "La Península" Estancia [Ranch] (later Huemul), owned by the Livestock and Settlement Company." Source (see comments).

So this estancia, is where Garrett worked. Was he a settler at the Colony by Lake Nahuel Huapi? An area which was opened to homesteaders in 1902, along the shores of the lake.


It was created by an Executive Decree in 1902 based on the Homestead Act, and it granted lots of up to 655 ha (~1,600 acres). There were 133 lots, and over 230 people who had applied. They had to live on the property for 5 years, invest pesos 250 (a horse cost around 25 pesos), cultivate 10 ha. and plant 200 trees, after which they obtained the deed for the land. Or, they could buy it for pesos 500. In 1902, one U.S. Dollar was worth 2.35 Pesos (papel) Argentinos, so the property would cost 1,175 USD of those days, equivalent nowadays to 44,133 USD. Very cheap!


Below is a map of the Colony (source), notice that the area where Paso Coihue is located (red dot) was not included. The land east and south of it, along the shore of the lake and on Huemul Peninsula was already occupied by the estancias of Rodolfo Harrington, Jarred Jones, and Marcos M. Zorrilla, Anchorena owned Victoria Island, and on the south side of the lake, Estancia El Cóndor, and Sinforoso Medina had their estancias. These were large estates which had been granted before the homestead decree. The government had handed over vast stretches of fiscal land to the families that ruled Argentina (the Desert Campaign to eliminate the Indians in Patagonia had been financed with a bond, based on the sale of the fiscal land that would be added to the nation). The soldiers, and officers received land, but they mostly sold it at bargain prices to the aristocracy who formed vast ranches. Foreigners also bought land, like the Livestock and Settlement Company. Maybe Garret was an employee of this company.


map lake NAHUEL HUAPI COLONIA AGRICOLA GANADERA

In 1923 a National Park was created in this area, and all these homesteads and estancias were included within it. They gradually vanished over the course of the years. The park was organized in 1937 and many homesteads were revoked after being reviewed.



Patagonian Monsters - Cryptozoology, Myths & legends in Patagonia Copyright 2009-2025by Austin Whittall © 

Saturday, September 13, 2025

Manta rays and sightings in lake Nahuel Huapi


Yesterday's post mentioned the movie "Bajo Superficie" (Under the Surface), which you can see online (full movie, in Spanish). After watching the movie, I looked for some additional information about it, and its director, and I came across an interesting interview, brief but revealing (Source). Below are some highlights:


The film's director, Miguel Ángel Rossi has lived in Bariloche for 35 years, while preparing the documentary, he interviewed many people over four years of research. They shared interesting stories, seldom disclosed in the media. Rossi said:

"What impressed me most during these years of research and gathering testimonies was the sense of awe for the phenomenon. Ninety-nine percent of them spoke to me without fear, wanting to see it again," Rossi said of the experiences he's received from people who claimed to have seen "Nahuelito..."


Two die colliding with the creature


But 1% of those who saw the creature felt fear. Rossi mentioned an incident:


"A woman told me the story of when they went fishing with her husband and son. The lake was flat and suddenly something came out of the lake, like the back of a whale, hit the boat, and they both died. Given that story, what can I say?"


I had never heard about this episode, so I looked it up. There are quite a few reports of small boats sinking in the lake (mostly due to wind, rocks, poorly maintained craft), and one is about a father and his son (online) about two men who drowned in June 2004, Rafael Sánchez (59 años) and his son Rafael Fernando (13), close to Gallinas Island. They had gone in a "precarious boat" with a small 5 HP motor to hunt deer on the north coast of the lake. The man's wife, and mother of the boy, called the local "911" asking for help, when they didn't return (her name is Celina Sánchez). The man's friends said he was an expert in navigating and new the area well, however they could not believe that he had set out in "a craft that was in such bad conditions". Coast Guard said the boat must have had some problem while crossing the lake between San Pedro Peninsula and Gallinas Island heading from the Castilla creek in Neuquén to Bahía Serena. Both men tried to reach the island swimming, but drowned. The bodies were found at a depth of 8 to 11 meters, wearing cloths and boots. The boat must have been overturned by the strong wind and 1 m (3 ft.) high waves. The boat was found on some rocks by the island, without its outboard engine, damaged by the stones, and an oar and three cork (!!) life jackets were found on the beach.


I have been fishing on the lake many times over the years, I remember my Dad have us take of our boots (it is cold in Bariloche, especially in the early hours of the morning, when we went fishing) and kept the lifejackets handy, even if the lake was calm. When the wind blows, it can get quite choppy. And even with a 90 HP outboard, it is rough navigating it. I can't imagine trying to cross the middle of the lake with one-meter-tall waves with a 5 HP outboard. They should have stayed in a sheltered spot. I don't believe they struck Nahuelito. They were caught by the waves, and being dressed, without a lifejacket, they were weighed down. Being June (winter!) the water is cold, and the wind chill-factor made hypothermia a deadly factor. They couldn't reach the shore and drwoned. No lake creature.


Stingrays


As expected, he also heard about the manta ray sighting, he mentioned it during the interview " The Coast Guard [Prefectura Naval] divers reported seeing fish shaped like manta rays" and they refused to get back into the water.


This "stingray" incident is shown in the movie (See movie segment: 1:17:05 in its timeline), reported by a man who was the commander of the Bariloche Gendarmería (Border Patrol) squadron. He mentions the incident involving a plane that crashed in Lake Gutierrez on January 27, 1986. The plane was a "scooper plane" that picked up water in the lake during firefighting missions. It had been leased in Chile, and was a Catalina CC-CCS/34, one of the crew died. The divers were sent to rescue the corpse. And in the movie, the person says they "saw giant manta rays and had to desist in their mission" he heard about this from his colleague, the head of the local Coast Guard division.

plane crash
The plane that crashed in Jan 1986. Source

The director also mentionded that he had an encounter with the creature: "I'm certain there's something there, and we need to identify it ... One day I saw something shaped like a log, but it moved very quickly, sank, and then came up again. It was between 5 or 6 meters long (15 to 20 ft) and very dark brown.""



Patagonian Monsters - Cryptozoology, Myths & legends in Patagonia Copyright 2009-2025 by Austin Whittall © 

Friday, September 12, 2025

Nahuel Huapi: the movie "Bajo Superficie" and the Aquatic tortoise or turtle theory


An Argentine documentary titled "Bajo Superficie" (Under the Surface) shot during the COVID-19 pandemic and released in 2022, explores the mystery of El Nahuelito, the mythical lake creature of Lake Nahuel Huapi.


You can see the full movie online (in Spanish). It is a 2 hour 20 minute-long film, a documentary, with interviews, nice shots of the lake, and it also used an underwater camera to shoot scenes hundreds of meters below the surface. Miguel Angel Rossi directed it, and it is really interesting.


Bajo Superficie poster

Rossi has lived in Bariloche for the past 35 years, and was always interested in the Nahuelito. He tells about an incident involving an unusual sighting: (source)


Giant Aquatic Tortoise or Turtle


"Many years ago, when his daughters were young, Rossi had a strange experience: he saw something moving on a beach near the lake, and as he got closer, he saw it was an enormous aquatic turtle with a long neck. He turned it over, and the animal disappeared beneath the water once more. This led him to think that perhaps the Nahuelito could, in fact, be a turtle of extraordinary size."


His research led not only to reports on Nahuelito, but also to strange lights sighted under and above the lake, and strange shipwrecks.


He explored different theories about Nahuelito, from the "radioactive" one (involving the Atomic Energy research center on isla Huemul Island (1948-52) (see my 2010 post on this theory), to the "geologic" one, which attributes the sightings to degassing from faults in the lake's bed (See my 2010 post on this theory).


Strange Fish


The movie mentions "strange fish" that were introduced into the lake over 100 years ago. During the filming of the movie, they got images of some animals that are now being investigated. There are three species found in the lake that had not been officially recognized. "In addition to sightings of aquatic fauna species, there are concurrent accounts of experiences that are difficult to explain, many of them recorded. I believe that over time all of this will be revealed. And I hope that in a few years there will be many important productions investigating the lake's issues in all its forms."


Below is a picture with Rossi (left) on a boat in Lake Nahuel Huapi, while shooting the movie.


Rossi and colleague

The Long Necked Tortoise


Rossi says that many people contacted him after the movie was released, and he is researching different theories. The tortoise is "...one of the ones that resonates most with me. After the film's release, a family story appeared that revives a theory I'd thought was dismissed. About eight years ago, this family experienced something that hadn't happened in 70 years. It intrigues me greatly because it's directly related to what Jarred Jones and others saw in the early 20th century: a long-necked animal. I had associated it with that turtle I saw years ago, but biologists tell me there are no turtles in the lake."


I must admit that I had never considered aquatic tortoises as a possible explanation for Nahuelito. I understood there were none in the Patagonian waters. There is a land tortoise in Patagonia, but now I have learned that there are freshwater tortoises in Argentina (see this paper) there are Phrynops hilarii, Acanthochelys spixii and Acanthochelys pallidipectoris in Mendoza province, just north of Patagonia. But the authors believe that they were introduced recently (pets released into nature). However, there is an ancient oral tradition of freshwater turtles in Las Heras and Lavalle Departments in that province in the early 1900s, both drained by the Mendoza River which formed part of the Desaguadero—Salado—Curacó rivers basin.


Notice the long neck of the Acanthochelys pallidipectoris (Chaco side-necked turtle) pictured below:


turtle

An Acanthochelys spixii or Black spine-necked swamp turtle:


Acanthochelys spixii

And this is a Phrynops hilarii:


Phrynops hilarii

The Colorado River marks Patagonia’s northern border in Argentina, while the Desaguadero—Salado—Curacó system is a river which changes its name along its course, which is nearly 1,500 km long (932 mi.) Its northernmost sources are in the province of La Rioja, high in the Andes at an altitude of 5,500 m (18,000 ft.), and it flows in a north—south direction parallel to the Cordillera, receiving the input of many Andean rivers such as the Jáchal, Vinchinas, San Juan, Mendoza, Atuel, Tunuyán, and Diamante.


Water from many of these rivers is now diverted to irrigate the vineyards at the foot of the Andes in the Cuyo region provinces of La Rioja, Mendoza, and San Juan. This has led to a dramatic drop in the flow downstream along the Desaguadero River and the wetlands of Guanacache and Bañados del Atuel have dried up due to this cause, altering the environment and affecting the wildlife.


Until the early 1900s, the river carried plenty of water, and the western region of La Pampa was far more humid than it is nowadays. The Bañados del Atuel wetlands spanned 21,000 km² (8,100 sq.mi.) and had fifteen lakes. The westernmost branch of the river was known as Potrol stream, the Salado was its easternmost one. The wetlands drained into the saltwater lake of Urre Lauquen. Their outflow through the Curacó River (Mapuche for “stone water”) continues southward until it flows into the Colorado River at (38°50’S, 64°58’O). Its basin covers a surface area of 260,000 km2 (100,000 sq. mi.) The Colorado flows into the Atlantic.


It is feasible that the tortoises, if they lived in this basin, could have reached the Negro River, linked to the Neuquén and Limay rivers, and the Patagonian lake district. The Colorado and Negro run in more or less parallel courses with a minimum separation of 40 km (258 mi.) along a line linking the towns of Gobernador Duval and Chelforó. In other parts they can be up to 120 km or 74 mi apart. See the map below with the "Gap" that the tortoises would have to bridge between the Colorado and Negro rivers.


map of rivers

They are usually small, but in the U.S., the ke the Alligator Snapping Turtle (Macrochelys temminckii) which can weigh up to 176 pounds and reach a lenght of 40 inches (1 meter) (source). Not a monster, but big.


An obstacle is the temperature, the Andean lakes are cold, and these freshwater tortoises and turtles live in temperate, tropical and subtropical environments. A study involving turtles from Chaco, found that "The thermal breadth found in active individuals suggests that H.tectifera is a thermal generalist (eurythermal). Body temperatures of active individuals ranged between 10.1 °C and 25.7 °C (Mean = 18.58). Accordingly, records of individuals mating under water temperatures as low as 16.5 °C and 9 °C reflect the species capacity to perform activities within a wide temperature range.".


The temperature of Lake Nahuel Huapi (source) ranges from a minimum of 5.3°C in winter to a maximum of 19.5°C in Summer. The mean winter temperature for most of the lake is between 5.3 and 8°C, in summer it ranges from 15 to 18°C. They seem suitable for turtles. The lake also provides algae, crayfish, minnows, aquatic plants and insects, which make up the diet of these animals.


Further reading about the movie: Temporetti, Alonso. Bajo Superficie. Desde La Patagonia Difundiendo Saberes. Vol 19, N°34, 2022 ISSN (print)1668-8848 - ISSN (online) 2618-5385



Patagonian Monsters - Cryptozoology, Myths & legends in Patagonia Copyright 2009-2025 by Austin Whittall © 

Thursday, September 11, 2025

Another video of Nahuelito


I came across another video, shot in June 2022, by a person who lives in Bariloche, Río Negro, named Silvina, she lives on the road linking Bariloche with Llao Llao, close to the "km 23" milepost. Silvina, whose home has a fantastic view of the lake, said she saw "something" unusual in the lake close to Isla Victoria.


The video embedded below can be seen here, in Youtube.


2022 Nahuelito video.

As usual, the lake is clam and something appears on its surface. It could be anything, bird, deer, fish, wave, wake, soliton, etc. Not a cryptid.


This map shows the spot of the sighting, and as you can see in the video, it was spotted by an island, which can be seen in the map on the upper right side, just left of Puerto Huemul. This island is called Isla Roble. Remember that there are wild boars and red deer on the Huemul Peninsula right beside the island and the spot where the "creature" was sighted.


Boars and deer have been seen swimming in the lake (see this post and this one too, uploaded earlier this year).


Patagonian Monsters - Cryptozoology, Myths & legends in Patagonia Copyright 2009-2025 by Austin Whittall © 

Saturday, August 9, 2025

Nahuelito in a video (Feb. 2025) - waves(?)


This video on Youtube shows a view of Lake Nahuel Huapi, and is captioned as showing its mythical Nahuelito lake creature. As you can see, it doesn't show any monster, just wave patterns can form on a placid and calm lake surface (see some previous posts on this matter).



It was filmed on the eastern side of Bariloche, between the airport access road and the city. It could be related to underwater faults venting gas or a soliton.



Patagonian Monsters - Cryptozoology, Myths & legends in Patagonia Copyright 2009-2025 by Austin Whittall © 

Sunday, June 8, 2025

Solitons and Lake Monsters


Solitons sound like some particle from quantum physics, but they were discovered by a classic Victorian scientist, J. Scott Russell in 1845. He was a Scotsman, a civil engineer and a naval engineer. One day and he observed a strange wave formed by a boat in a canal that traveled several miles along it without decaying. He wrote an article about this stange phenomenon, in 1845. Waves are supposed to lose energy and fade away, this one, on the other hand, remained coherent-


The name Soliton is now used to describe these waves "solit" from "solitary" wave, and the "-on" suffix in an analogy to the one used for elementary particles (electron, photon, proton, etc.)


The "solitary wave" or "soliton" are a special type of wave, that once they form move constantly in the same direction with no changes in the height of the wave, its interval (frequency) or shape. They don't dissipate, they maintain their form and can travel long distances from the spot they were created.


They form in the sea, in rivers, lakes, and canals. Wind, tides, shallow water, water layers with different temperatures, ships, and underwater topograph can contribute to their formation.


Johen Scott Russell pointed out that "if a wave is too big for the depth of water, it splits into two, one big and one small" with the bigger one traveling faster than the smaller one. Over time they will become separate waves. But there are other mechanisms that can split solitons even in deep water forming a train of waves that travel together over an otherwise flat body of water. These trains can contain between two and six separate waves.

Professor Sergei Eremenko describes this in his book and includes photographs like the one below.


Soliton in Lakw Wakatipu, NZ.

The video is captioned: "Unstoppable like tsunami, soliton envelope wave packet, composed from two distinct sub-groups, slowly cruising Lake Wakatipu, New Zealand."


The same type of wave trains can be seen in Patagonia. Below is a soliton observed in Lake Nahuel Huapi on Feb 16, 2020. The viewers thought they were seeing the activities of the famous "Nahuelito". But a scientist consulted by the press suggested it was a soliton (source),



2020 Soliton in Lake Nahuel Huapi.

As expected, the video mentions "Nahuelito," ignoring the scientific explanation.


In recent posts I have suggested that waves are a reasonable explanation for mysterious lake creatures, especially single wave fronts that look like the wake left by a submerged animal.



Patagonian Monsters - Cryptozoology, Myths & legends in Patagonia Copyright 2009-2025 by Austin Whittall © 

Friday, May 23, 2025

Red deer swimming in Lake Nahuel Huapi


Lake Nahuel Huapi is the home of the mysterious Nahuelito creature, but also, has a varied fauna, both local and imported.


Deers can be mistaken for Lake Creatures


In July 2019, Tomás Isaurralde who was driving from Villa La Angostura to Bariloche along Ruta 40 highway, saw an unusual scene, a deer swimming in Lake Nahuel Huapi, close to a long fjord along its coast known as Huemul Arm.


As mentioned in my book:


Different objects may also be mistaken for lake monsters, such as fish swimming near the surface, bobbing logs, or long-necked birds.
Interestingly, early fall (March) is the red deer’s (Cervus elaphus) breeding season. During this period, called the rut, stags aggressively compete for the attention of the females (hinds).
Stags are also known to swim across the lake from Huemul Peninsula to Victoria Island searching for females, an open and exposed stretch 2 km (1.25 mi.) wide and over 200 m (655 ft.) deep.
An inexperienced observer would swear he or she had seen Nahuelito if confronted with a swimming deer in the middle of the lake.


Insaurralde filmed it and you can see the video online. Below is a still from the video:

Red deer swimming across a Lake Nahuel Huapi.

But, where did the red deer come from? They are a Eurasian species.


Argentine millionaire and dandy, scion of the Anchorena dynasty, Aaron de Anchorena (1877-1965) is a very charming character. He was an aviator, in the early days of aviation, and an enthusiastic big-game hunter. But above all, he was very rich.
He organized an expedition to Patagonia in 1901/02 to Chubut, Rio Negro, and Neuquén, during which he hunted sea wolves, guanaco, wild cattle, and wild goats.
He explored the region when it was still wild and mostly unknown. He immediately fell in love with it, and after visiting Victoria Island on Lake Nahuel Huapi, where he camped and hunted wild goats, he met Francisco Moreno and enlisted his help to secure ownership of the island.
By law, islands in Argentina belong to the Federal Government, so Anchorena couldn’t own Victoria Island, but he got a law passed through Congress (Ley 5,263) in 1907 that leased it to him for life.
He soon built a shipyard, planted crops, and introduced exotic plants, trees, and animals so that he and his friends could hunt them. Subjected to relentless criticism, he quit his lease in 1911 and purchased a plot of land nearby, on the Huemul Peninsula, which he owned with his nephews and niece, the Ortiz Basualdo.
The interesting part of this story is that he brought into what is now a National Park, animals from other parts of the world and set them free on the island; these were red and axis deer, wild boar, pheasants, and brown bears.


He also introduced European wild boars to his ranch at Huemul, which later (1999) swam across Lake Nahuel Huapi, returning to Victoria Island.


On the Huemul Peninsula, Anchorena built an imposing ranch house was built in wood and stone in a style that would be adopted by architect Exequiel Bustillo and used in the Bariloche Civic Center and administrative buildings. The Prince of Wales stayed here in 1931. It was also the site of the first Jesuit mission established by Father Nicolás Mascardi on the coast of Nahuel Huapi in 1670.



Patagonian Monsters - Cryptozoology, Myths & legends in Patagonia Copyright 2009-2025 by Austin Whittall © 

Saturday, December 3, 2011

Setting the Stingray Hypothesis straight

 Rewritten on 14 Dec. 2011.

Ever since I was nine, I have been terrified of freshwater stingrays. I read a fable by Horacio Quiroga, "El paso del Yabebirí".

Horacio Quiroga (1878-1937), a Uruguaya author, wrote several books about his life in Argentina's Northeastern province of Misiones. A land covered with jungles, and where the marvelous Iguazú falls are set.

In this story a man, wounded by a "tiger" (the name given to the South American jaguar), was saved by the timely action of the stingrays who "stung" the jaguars as they tried to cross the river to kill the man. He had protected the rays in the past so they helped him. The river's name means "river of stingrays".

Stingrays have always been on my mind, when I swam in the brown silty waters of the Paraná River delta and the River Plate during my youth I always wondered if a ray would sting me when I stood in the muddy river bed.

I posted about them and included them in my book... and today, came across a strange online article:

An online article

It was published in an site (The Anomalist [*]) , and mentioned the Patagonian Cuero. I quote it below (Bold font is mine):

December 3

Capture of the Cuero Frontiers of Zoology
Dale Drinnon features an article about television fisherman Jeremy Wade of "River Monsters" capturing a 280-lb giant freshwater stingray in the waters of Argentina's Parana River near Buenos Aires. Photos of the fisherman and his catch are included, and Drinnon takes the catch further to reveal what it has to do with cryptozoology.
It turns out Drinnon had identified freshwater stingrays as the origin of tales of plesiosaurs in the freshwater lakes and rivers of Patagonia. Drinnon's original report on the Patagonian cryptid is included along with some excellent comments from other cryptozoology bloggers, including Austin Whittall of Patagonian Monsters whose comments had sparked Drinnon's stingray identification.

Some reviewers should get their facts straight

You can imagine my surprise, I believe that the story should actually record that it was a Catholic priest, Father Molina in the late 1700s wrote about manta rays as the explanation for Chilean Cuero myth. While researching my book, I came across his work, and I mention it in my book and in a post written Over two years ago, in my September 30, 2009 post on El Cuero - Nahuelito I jotted down that:

...The ray theory is the most reasonable explanation, in fact the shape and size of the cuero are similar those of fresh water stingrays.

However these apparently do not live in the Patagonian lakes or rivers, their habitat is in the Tropical to Temperate regions of eastern South America....
South America is home to the only exclusively freshwater stingrays in the world, the family Potamotrygonidae. The closest to Patagonia live in the Paraná River basin. These rays have a sharp spike on the rear of their tail which they use for self-defense and, interestingly, their disk can be covered with small denticles, small to large thorns which are thooth-like in structure, and covered with a tough enamel.


For those interested, my Jan 20, 2010 post on the Cuero goes into plenty details and even includes a map on South American freshwater stingrays and mentioned the Paraná River stingrays:

There are only on family of freshwater stingrays in the whole world, these are the Potamotrygonidae and they live in South America, but the closest that they get to Patagonia is over 1.600 km (1,000 mi.) to the north in the Paraná River basin...

What Molina wrote was that the Cuero was:
“a monstrous type of Manta ray”, or perhaps a squid with cat-like nails; the 'Seppia unguiculata'" (its Latin name means “clawed” Seppia)

As there are no known freshwater rays in Patagonia, this is a possible explanation for them being there (If and when they are found there)
But there is another intriguing option: Potamotrygonidae are related to the Dasyatid rays who often venture into fresh water in several parts of the world; one of these species can be found off the Chilean Patagonian coast. Maybe these Dasyatids swam up the rivers into the Andean lakes and their denticles were taken for claws.

However let me make it clear that my tirade is not against Dale Drinnon who is an honest researcher and writer, who gets his facts straight before publishing them. It is an outburst born from my surprise at how "reviewers" can sometimes distort facts!.

[*] Note: The Anomalist is a daily online review of world news on maverick science, unexplained mysteries among other subjects.


Patagonian Monsters - Cryptozoology, Myths & legends in Patagonia
2011 International Year of Forests
2011 International Year of Forests Copyright 2009-2011 by Austin Whittall © 

Friday, November 25, 2011

My big "fish" at Millaqueo Bay

 
lake Nahuel Huapi, Millaqueo Bay
Western Nahuel Huapi, Millaqueo Bay from Mount Campanario . Copyright © 2011 by Austin Whittall

This morning I was looking at the photographs taken during our recent trip to Bariloche, when we went up the chairlift to the summit of Mount Campanario, a solitary cone shaped mountain that lies on the southern shore of Lake Nahuel Huapi which is 1,030 m (3,377 ft.) high.

From the mountain top (which has a nice cozy restaurant where you can enjoy a hot chocolate laced with cognac!), the view is impressive. To the East, the city of Bariloche, 20 km away and beyond it, the Patagonian steppe and the eastern tip of Lake Nahuel Huapi.

To the North, the lake itself, majestic, with the forest covered hills that enclose it. Snow on the mountain tops as it is mid Spring. Far to the North, the peaks of the Andes that mark the border between Argentina and Chile. To the West, more mountains and a view of the Tristeza and Blest Arms of the lake. And, Behind us, to the South, Lake Moreno and the tall mountains (López, Capilla, Goye, Catedral -with its ski resort), and to the South East, the Otto and Ventana Mountains.

The forest, the deep blue lakes, the snow and clouds. A great scenery!
Anyway, one of the photos that we took, showed Millaqueo Bay. Behind it is Mount Millaqueo (1,800 m - 5,900 ft.) on the left, and Mount Vinagre (1,870 m - 6,131 ft.) and Colorado (1,900 m - 6,229 ft.) (center and right).

A large stream flows into the Bay's northern shore, Millaqueo Creek, this part of the bay is relatively flat and has a nice sandy beach. Its western shore is steep and forested.

map Millaqueo Bay
Map of Millaqueo Bay. Based on Google EArth maps

The "big fish" incident

I was fishing here with my father in the early 1970s, I think it was 1975. We used to bring our boat all the way from Buenos Aires to fish for trout, trolling the lake if the weather allowed us to.

It was a 4.5 m (14.75 ft.) fiberglass speedboat equipped with a 90 HP Chrysler outboard motor. We used to troll for hours, leaving home early in the morning, at sunrise and getting back by midday.

On this particular day we decided to fish along the lake's western coast in the area by Millaqueo. We had equipped our lines (we used two canes, on on each side of the boat) with a flatfish lure. We added a small lead-sheet weight wrapped round the tip of the line to sink the lure even deeper (without the weight the lures sank to a depth of about 1 m - 3 ft., with the lures weighed down, they sank to about 3 m - 9 ft.).

With this method we had caught some big (5 kg - 11 lbs.) brown trout! Which we smoked and ate the following winter.

This morning, we began trolling at the mouth of the lake's Blest Arm, parallel to the coast, about 50 yards from it, going north. When we reached the mouth of Millaqueo Stream, I got a tug on my line. (the map shows our course, in red).

The usual sign of a bite was that the line began to run out from the spool. We had adjusted the fishing-reel's brake to allow the line to be drawn out if a fish took the lure. My Dad stopped the engine and I started to reel the line in. The brake was skidding even though the boat had stopped dead. This "fish" was pulling the line out faster than I could reel it in!

I tightened the brake a little (a delicate balance the tightness issue, I had lost some fish because the line cut due to an over-tight brake) to slow the "fish" down and kept on reeling in as fast as I could. But the line kept on running from the spool until it came to an end, tensed, became more and more taught, and cut!
We used a 0.4 mm mono-filament nylon line, which could withstand fish weighing up to 11 kg (24 lb.) so we were quite surprised at what had happened.

We had fished in the Patagonian lakes for many years, caught dozens of trout of all kinds and sizes (many were returned unharmed to the water). But not once did we lose a fish because it took the whole line and then cut it! We had big reels with over 150 m (491 ft.) of nylon line in them.

What bit my lure and drew all the line is a mystery. It must have been a very big fish. Which, by the way did not jump out of the water, not even once. Rainbow trout, once they bit the lure, jumped out of the water. But this trout stayed submerged.

We often wondered what "fish" it could have been. I don't know. It was not an underwater snag as the lake is deep there, and a rock or tree would not have taken the line from my reel.

Who knows! I only hope that it wasn't a Patagonian otter (huillín), though we never saw one of them in the lake.

2011 and the "big fish"

The reason I wrote about the big fish 36 years later, is because, if you take a good look at the photo above, in the central part of the image, close to the northwestern shore, by the mouth of Millaqueo Stream, you will see an odd thing on the lake's surface. Below is the zoomed image:

ripple on lake
Detail showing "circular ripple" at Millaqueo Bay. Copyright © Austin Whittall 2011

The lake is perfectly calm except for this circular shaped ripple, which is quite big considering how far away it is from my observation point!.

Perhaps the "big fish" is still alive and kicking!


Patagonian Monsters - Cryptozoology, Myths & legends in Patagonia
2011 International Year of Forests
2011 International Year of Forests Copyright 2009-2011 by Austin Whittall © 

Sunday, October 23, 2011

My photos of "Nahuelito"

 
In a recent post I wrote that during my trip to Bariloche I had taken some photographs of a strange thing in Lake Nahuel Huapi.

The sequence is shown below, the first photo shows the view, looking North,from the summit of Cerro (Mount) Campanario, a solitary mountain 1.050 m high (3,442 ft.), which gives a great 360° view of the Lake and its southeastern coast. It is located 17 km (10.6 mi.) from Bariloche and 3 km (2 mi) from my family's cabin. We took a walk on Oct. 8, and rode up the mountain on a chairlift. The day was lovely, slightly cloudy, not windy and sunny. The lake was calm and the view great.

We looked at the lake and the scenery and took some pictures. Then I saw what I thought was a boat on the lake, close to Huemul Peninsula, between it and Victoria Island. It stood out as a dark dot on the calm lake which moved slowly, too slowly for a boat. I took several photographs (numbered 1 to 4). Now, looking at them, they seem to show a rippled lake surface which reflects the mountains in the back, hence the dark reflection on the lake surface. It was not a boat, it was the reflected forest.

However, photo 5 shows something else (clearly seen in photo 5 and its zoom):

It is a minute dot, a triangular shaped dark object towards the right of the central part of the photo. It is seen in photo 6 and then it is gone, it does not appear in the remaining photos.

Options: Possible explanations and my estimated probability.

1. Another reflection of the mountains... 95%
2. Some sort of wave... 5%
3. Nahuelito surfacing... 0%

Sorry, but I am a skeptic, even if I see it myself. Perhaps, if I had taken my binoculars I could have seen it better and been able to give a better explanation.

nahuelito sequence

The detailed photos are these:
Photo 1: General view of the area, the remaining photos concentrate on the region within the red circle.

nahuelito sequence
Photo 2:
nahuelito sequence
Photo 3:
nahuelito sequence
Photo 4:
nahuelito sequence

Photo5: "Nahuelito" is the tiny dot, a small dark "wedge" on the central right part of the image.
nahuelito sequence
Zoom on Photo 5:
nahuelito sequence
Photo 6:
nahuelito sequence
Photo 7:
nahuelito sequence
Photo 8:
nahuelito sequence

If you want a copy of any of these photos, I can send you the originals.
The original high definition photo 5 is below:
nahuelito sequence



Patagonian Monsters - Cryptozoology, Myths & legends in Patagonia
2011 International Year of Forests
2011 International Year of Forests Copyright 2009-2011 by Austin Whittall © 

Tuesday, October 11, 2011

100,000 hits! and Nahuelito

 
Well, today is quite a day!, I have just checked the counter at the foot of the page and noticed that we have had more than one hundred thousand hits!

Thank you all for visiting this blog and reading what I have written. I am flattered and honored.

Volcano and ashes
By the way, I was in Bariloche (Lake Nahuel Huapi) with my wife and son, we went there for a few days as it was a long weekend here in Argentina (Columbus Day moved back to Monday 10th).

It was interesting because a volcano close to Bariloche has been erupting for several months now (our flight took us 3/4 of the way to Bariloche and we had to take a bus to cover the remaining 450 km) it is Puyehue Volcano, in Chile. My family's cabin, in the forest, was sprinkled with a talc-like ash and the whole garden and the area where the excess volcanic ash slid off the roof was covered with (I call it sand) volcanic ash. Between 5 and 10 cm (2 to 4 in.) covered the garden, pathways, roads. On Sunday the volcanic plume blew southeast and blanketed Bariloche. Amazing.

Nahuelito or a mirage?

By the way, I will post some pictures and an interesting set I took from the top of Cerro Campanario (a mountain whose Spanish name means belfry and which stands up, alone, above the lake close to our cabin) in it you can see a strange dark shape in the lake which vanished after a few minutes... Nahuelito? I don't think so, but it is a clear example of the strange things that can be seen (though, I had never seen something like that in the 40 years that I have spent gazing at Nahuel Huapi).

A preview:

nahuel huapi lake creature

detail of Nahuelito

The first image, above, shows a view looking north, across the narrow part of the lake, the circle is enlarged in the bottom image. It shows a dark shape floating in the lake, it later disappeared.

More photos and details in my next post.


Patagonian Monsters - Cryptozoology, Myths & legends in Patagonia
2011 International Year of Forests
2011 International Year of Forests Copyright 2009-2011 by Austin Whittall © 

Thursday, September 15, 2011

Nahuelito in Google Earth?

 
nahuelito
Odd shape in Lake Nahuel Huapi. Google Earth

Above is a screenshot from Google Earth. The coordinates of the white blob inside the red circle are given in the image. It is a spot in the middle of the lake, between Huemul Peninsula and San Pedro Peninsula, just east of Victoria Island.

It is about 8 m (25 ft.) long and big enough to appear in the satellite photograph.

What is it? Jokingly I could say it is Nahuelito. But it is more likely a train of waves which, in that part of the lake can be quite big on a windy day. Frothy rolling waves may appear on a satellite image. However the shape is odd. Could it be a boat? (not too clear an image to let us decide if it is or it isn't). It could also be a burst of bubbles issuing from the fault that lies below, on the lake's bed (see my post Bubbles and Nahuelito).


Patagonian Monsters - Cryptozoology, Myths & legends in Patagonia
2011 International Year of Forests
2011 International Year of Forests Copyright 2009-2011 by Austin Whittall © 

Tuesday, January 4, 2011

Lake Nahuel Huapi has changed color

 
color change nahuel huapi
Pale color on lake Nahuel Huapi (usual color is navy blue). From [2].

Nahuel Huapi, the lake where Nahuelito the most famous of Patagonia's cryptids lives, has changed its color.

According to an article published today, [1] the lake changed color, after an earthquake shook the Bio Bio region in Chile last Sunday afternoon (it had an intensity of 6.9).

The color has shifted the lake's deep blue waters to a paler tone, and the unusual phenomenon began in front of the city of San Carlos de Bariloche and spread out across the eastern (shallower) tip of the lake.

Scientists believe that the lake's shelf, which have sediments and even ancient volcanic ash, were shaken by the quake and they, being unstable on the shelf's slope, slid and mixed with the water, where they became suspended. It may take some time for them to decant and sediment on the lake's bed.

This is very similar to what happened at Lake Huechulafquen, a few hundred kilometers north of Nahuel Huapi, which also changed color last year.

Update 01.02.2011: The cause was excess sediments flowing into the lake due to heavy rains. (See my post on it: Nahuel Huapi back to its usual color)

Sources.

[1] Cambio el Color del lago Nahuel Huapi y lo atribuyen al terremoto en Chile. Clarin. 04.01.2011.
[2] El lago Nahuel Huapi cambió de color y dicen que podría ser por un sismo. Diario Jornada. 04.01.2011.


Patagonian Monsters - Cryptozoology, Myths & legends in Patagonia
2011 International Year of Forests
2011 International Year of Forests Copyright 2009-2011 by Austin Whittall © 

Friday, November 26, 2010

The Myth of Nahuelito: An article

 
article on Nahuelito
Article published 25.Nov.2010 in The Argentina Independent.
Copyright © 2010 by Austin Whittall

Yesterday, November 25, 2010, a very interesting article by Mr. Sam Mustafa was published in the online newspaper The Argentina Independent, it deals with the mysterious lake creature "Nahuelito".

I appear quoted in the article, and my book (soon to be printed) is also mentioned. I am very honored that Mr. Mustafa took the time and effort to interview me and also, to publish my comments and thoughts on this matter.

By the way, Mr. Mustafa visited Bariloche (the town on the Nahuel Huapi Lake, home to Nahuelito) to get a first hand impression of the place and to interview possible eyewitnesses. His article, which can be read following the link below is very interesting:

Click to read the full article The Myth of Nahuelito: A Monstrous Symbol of Argentina | The Argentina Independent.

This is my blog's post on Nahuelito.

Thank you Sam! It has been a delightful experience.


Patagonian Monsters - Cryptozoology, Myths & legends in Patagonia
2010 International Year of Biodiversity Copyright 2009-2010 by Austin Whittall © 

Friday, October 15, 2010

Nahuelito as a possible radioactive mutation

 
complex at Huemul Island
Huemul Island fusion complex. Copyright © 2010 by Austin Whittall

On the web I have read that Nahuelito may be a mutation produced by radioactivity caused by “nuclear experiments that were done on Huemul Island during the 50’s”. [11]

In today’s post we will look into this assertion and see if it is true or just another wild theory.

Argentina after World War II

Argentina’s military dictators (who ran the country from 1943 until 1946) were, to put it mildly, pro-Nazis and fascists.[12] They were of extreme rightist ideology, and as such, they resisted taking sides during World War II, adopting a neutral position which bordered on supporting the Nazi regime. Only when it was completely clear that the Nazi’s were going to lose the war, did the Argentine government severe its diplomatic ties with the Axis powers (Jan. 1944) and shortly after declare war on them on March 23, 1945.

For those who may not be aware of these facts former President Juan Perón was a Colonel in the Army during this period. He later became president (after winning the general elections in 1946) and after changing the constitution to allow his reelection, was chosen president again in 1952. He then gave his government a dictatorial tint (jailing those who opposed him, censoring the news, etc.). He was ousted by a military coup in 1955. He was also pro-Nazi.

The army had sent him in 1938, on a tour of duty to Spain, Germany and Italy. During his training there, he became convinced that the Axis would win the war and that Mussolini’s fascist dictatorship in Italy was a model to follow in Argentina, and which he did impose during his second term as president.

After Germany surrender, he allowed refugees from Germany to settle in Argentina, and, it is said, embraced escaped Nazi leaders.[13] It is a shameful stain for Argentina’s honor that this happened, and that the "Peronist" regime allowed war criminals to find a safe haven in our country (i.e Adolf Eichmann, Josef Mengele, Erich Priebke, and others).

The former Nazi scientists

In this context, the Argentine government, seeking to position Argentina among the leading countries of the world, also enticed scientists from the defeated Germany to settle in the country.

With their help, Argentina would manufacture and fly the first Jet fighter plane in Latin America (1947) which was perfected (Pulqui II) by famous German aircraft designer Kurt Tank. Unfortunately Argentina’s economic woes killed the project by the early 60’s.

But not only was Peron looking for military technology, he was interested in nuclear energy, not for weapon production but as a source for cheap energy to develop Argentina's steel and aluminum industries.

Richter the bogus nuclear man

Ronald Richter (1909-1991) was a German [3] (actually born in Falkenau which then was part of Austria and now is part of the Czech Republic) refugee, a physical chemist who claimed to have a degree from the University of Prague.

After Argentine authorities contacted Professor Kurt Tank they invited Dr. Richter to work on a nuclear fission reactor. Dr. Richter signed a contract with the Argentine government in October 1948, and in June 1949, he began building his laboratory on Huemul Island.

He chose the place because Lake Nahuel Huapi offered plenty of clean water, and the place lacked dust which could wreak havoc with the delicate instruments needed in the plant. Furthermore, being an island, it was a safe spot to keep spies away.

Richter was not interested in conventional nuclear fission (as in Atomic bombs or current nuclear reactors that generate electricity all around the world) but in fusion using a technology that he had pioneered in Nazi Germany in 1942.

Fusion, unlike fission, is what powers the stars and the sun, it is the energy inside Hydrogen bombs. It releases enormous amounts of energy when two “light” atoms “fuse” into one. (Fission, the stuff of A-bombs on the other hand, is the energy released by splitting large unstable Uranium or Plutonium atoms).

Until today nobody has managed to design or power up a self sustaining fusion reactor that releases more energy than it uses. It is clear that Peron and Richter were aiming high.

He worked hard and soon, in February 1951, claimed that at his Huemul Island reactor he had “succeeded in sustaining a controlled fusion reaction using his shock wave technology”. [1]

Peron immediately saw the political advantages and quickly (prematurely) announced these surprising and ground breaking results to the world on March 24.[9]

Peron had bought from Richter the idea of cheap energy generated by fusion reaction as a way to promote industrialization and help forge a “New Argentina”. [2] He even went as far as announcing that he would sell atomic energy in liter and half-liter bottles for family and industrial use [3]:

very soon we will have a surplus of energy with [the technology that] we are developing at Huemul . We will sell it in bottles of one and half liters [1 and half pints respectively] for industrial and family use, which can be used to provide light, cook food and heat irons [10]

Incidentally, this announcement drove the US to begin its own fusion program. [2] Which still has to produce a self sustaining fusion reactor.

Trials continued and in December, Richter suggested to Peron that some kind of joint venture with the U.S. would quicken the development of this technology.[4]

But then something happened and in March 1952 Richter said that his work was being sabotaged. A commission was sent to investigate in September 1952, which issued a report “Informe del Dr. Jose Antonio Balseiro referente a la inspection realizada en la isla Huemul en setiembre de 1952" , which concluded with the following phrase:

Based on the above mentioned proof and comments, the undersigned considers himself authorized to assert that there is no serious scientific basis in Dr. Richter’s claim that he had attained a controlled thermonuclear reaction, deeply regretting having had to reach this conclusion.

Buenos Aires, September 16, 1952

This marked Richter’s fall.

By November of that year, Richter was sacked and all 300 workers in the fusion pilot plant dismissed. [5] In September 1954 he was denounced at Congress because of the non replicability of his tests. He was held in jail in Congress for a few days.

He would later leave the country, but he returned and died here in 1991.

Dr. Balseiro, who had issued the condemning report would later head the Argentine National Commission on Atomic Energy (CNEA), which successfully developed and built fission reactors for peaceful purposes, one of which was located at the “Centro Atomico Bariloche”, right in front of Huemul Island, on the mainland (see map above).

Huemul island became a familiar pun to the Argentines who came up with the anagram: “Huele a mula” which, in can be roughly translated as “it is a rip-off”, "someone is cheating". [3]

Radioactivity?

Richter’s fusion plant did not involve uranium or fissionable radioactive material, he merely created hot plasma gas using hydrogen and lithium. Non-radioactive products. So we can not trace any radioactivity to his activities on the island.

The island with its facilities remained in the hands of the CNEA, but lack of maintenance and active destruction by the Argentine Army in 1978 (during a border conflict with Chile, the army used the buildings for military games and shelled the place). [14]

The CNEA handed it over to the government of Río Negro province, which in turn ceded it to the Municipality of San Carlos de Bariloche, which declared it a “Historical, Ecological and Touristic Municipal Reserve” and now (Oct. 2010) is inviting companies to bid in an international tender to manage the Reserve as a tourist attraction.

But lets go back to radioactivity.

After the Huemul fiasco, the CNEA undertook serious research and after finding large uranium reserves in Mendoza province (1951) it purchased a synchrocyclotron (1952), opened the “Balseiro Institute”in Bariloche (1955) and manufactured its first fission reactor (1958), located in Buenos Aires. [8]

At Bariloche there is one low power nuclear reactor, the “Reactor Argentino RA-6”, which began operating in 1982. It is located at the Centro Atomico Bariloche and is used not only for teaching purposes (at the Balseiro Institute), but also for cancer treatment. It is a multipurpose reactor with an output of 500 KW, using enriched uranium (20%) and Uraniuim 235 (80%). [15]

Though it was built on a fault (see my post on “Nahuelito gas and bubbles"), the risk of a nuclear accident is extremely low. And “there is no evidence that it has produced radioactive contamination since it began operating”.[9]

It is supervised and audited by the ARN (Nuclear Regulatory Authority) on a yearly basis and samples are taken from the soil and water in the surrounding areas to check for radioactive contamination. So far none has been detected.[16]

Huemul Island

The island itself, has a surface area of 75 hectares (188 acres) of which only 10% will be used for touristic purposes. [7] The remaining part of the island is covered by forests. It is located just off the coast between Playa Bonita and Puerto Moreno. In the map above you can see how close it is to the current Centro Atomico Bariloche facilities.

Read more about its real name (not HueMul but HueNul).

Conclusions

Richter’s fusion plant did not release radioactivity in the early 50’s.
Current fission reactor has not released radioactivity (1982-2010).
There is no possibility that any local animals could have received radioactive dosage from the CNEAs activities in the area and mutated into lake monsters.

The “mutation due to radioactivity” theory can be dismissed.

Bibliography

[1] Henry Stevens, (2007). Hitler's Suppressed and Still-Secret Weapons, Science and Technology Adventures Unlimited Press, pp. 263.
[2] Leslie Bethell, (1984). The Cambridge history of Latin America. Cambridge University Press. Vol. 6. pp. 502.
[3] Ronald C. Newton, (1992). The "Nazi menace" in Argentina, 1931-1947. Stanford University Press, pp. 379.
[4] New York Times. Argentine Plans Atomic Exchange; Richter, Research Chief, Tells of Negotiations With 'Highly Industrialized' Country. 11.12.1951.
[5] Edward A. Morrows, (1952). Peron's Atom Dream Fades; Director Reported Arrested; Argentine Dream on Atom Explodes. 05.12.1952,
[6] Informe del Dr. José Antonio Balseiro referente a la inspección realizada en la isla Huemul en Setiembre de 1952. Instituto Balseiro.
[7] Breve Historia del Proyecto Isla Huemul. Bariloche Municipality.
[8] CNEA. Website
[9] ParksWatch, Parque Nacional Nahuel Huapi, Amenazas.
[9] La Segunda Tiranía. Comisión 12 Comisión Nacional de Energía Atómica (Capítulo I). Antecedentes para la creación del “Centro Huemul”
[10] Alfonso Crespo, (1978). Eva Perón, viva o muerta Librerías-Editorial Studium, pp. 286.
[11] Anita González. (2004). El monstruo del Nahuel Huapi. Extraño y gigantesco animal concita interés de argentinos. Austral. Temuco.
[12] Ricardo M. Setaro, (1944). Argentina, fascist headquartersAutores. Council for Pan American democracy.
[13] Uki GoñI, (2002). The real Odessa: smuggling the Nazis to Per&oacutEe;n's Argentina Editor Granta.
[14] Ernesto R. Ríos, (2007). Planta Piloto Huemul: se cumplen 56 años … 26.03.2007
[15] INVAP. Reactores RA-6 y RA-8 de Argentina.
[16] Autoridad Regulatoria Nuclear, ARN. Report.


Patagonian Monsters - Cryptozoology, Myths & legends in Patagonia
2010 International Year of Biodiversity Copyright 2009-2010 by Austin Whittall © 

Tuesday, October 5, 2010

Nahuelito bubbles and gas - Part 2

 
In yesterday's post I wrote about the possibility that Nahuelito (Lake Nahuel Huapi's cryptid) was actually an eruption of natural gas bubbles on the lake's surface.

I was brushing up on this subject and rereading some old sightings and I have become more and more convinced that this is an excellent explanation. Please let me share my research with you:

Peculiar sightings

The following are only three sightings that mention bubbles and foam together with Nahuelito, I quote them below and highlight the relevant parts:

  • Date: 30.01.1988. “this alleged animal has a dark back and around it, it lets off a strange boiling of about 10 or 15 meters (30 - 45 ft.) diameter”. [1]
  • Date: 04.01.1998. Graciela Carello and Rubén Ehara saw at Ragintuco Creek, at the mouth of Huemul Fjord, while fishing: “that the water is sucked in, as if announcing that something will surge. Then, all the surface filled up with a white foam and the back [of an animal] began to surface, of a dark brown color”.[2]
  • Date: 29.04.2008. “a man saw something like two 'bus roofs' or two rectangular submarines that emerged producing an important quantity of bubbles […] Both shone intensely under the sunlight”.[3]

This last sighting is shown in the following photograph:

Nahuelito bubbles
Nahuelito photograph. 29.04.2008. From: [3]


Common elements in each sighting: bubbles and foam.

Explaining the phenomena in a clear and detailed manner

gas escapando lecho lago
Gas venting from the bed of Lake Nahuel Huapi. Copyright © 2010 by Austin Whittall

Along the fault (A), oozes oil and natural gas (mostly methane) and are captured in a "fault trap" which accumulates the gas (B) and the oil(C).

The overlying water's pressure does not let the oil or gas escape. As the lake is over 450 m deep (1,475 ft), the column of water applies a pressure of 45 atm. (approx. 45 bar) to the gas. To escape it must overcome this pressure.

The gas builds up until its pressure is greater than 45 bar, and escapes.

It is possible that methane hydrates may form [7] (the frozen water molecules form a lattice that traps the methane within it). This can happen under certain conditions of high pressure and low temperature which can be found on Nahuel Huapi's bed. Hydrates are even found in some deep lakes such as Baikal in Siberia and perhaps Lake Superior in the U.S.

The gas, upon reaching the adequate pressure, suddenly escapes through the rocsk of the lake's bed(i) as a large bubble (d) dragging small ammounts of oil (E), towards the surface (F) where it surges generating froth, foam and bubbles (G) and a spill of dispersed hydrocarbons (H). These oil residues could account for the dark "animal backs" seen in the foam as mentioned by Carrello and Ehara.

The incicent could create a wake as the foam is dragged away by the waves it produces, as can be seen in the next photograph, taken from a video [8]:

nahuelito at campanario
Photograph of Nahuelito at Campanario Fjord. From: [8]

Modelos that have simulated this phenomenon with the use of computers [4] indicate that the bubble does not have to be a spherical ball. It can have the shape of a lens, with a flat bottom face while its upper surface is dome shaped. When it reaches the surface it deforms it into a convex shape and bursts shooting a jet of high speed water that falls inwards, towards the hollow bubble, this could sink and drag under any boat that sailed over it.[4]

Comments and discussion

It is interesting that the dome was mentioned in the first sighting of Nahuelito around 1910, but it was only made public in 1922, coincidentally with the plesiosaur expedition.

The article was published in the Toronto Globe, Canada, April 6, 1922 under the headline “Local man lays claim to having caught sight of gigantic plesiosaur”. The man, named George Garret, said that about 1910 as a manager of company on Lake Nahuel Huapi while sailing in “an inlet called Pass Coytrue” (Paso Coihue on the Huemul Fjord), he saw:

an object which appeared to be 15 or 20 feet [4.5 or 6 m] in diameter, and perhaps six feet above the water [1.8 m]. After a few minutes, the monster disappeared. […] .[5]

It was a circular object that protruded above the water like a dome.

These enormous bubbles can also produce bizarre sounds which have been heard in different parts around the world from Holland, Canada, Italy to Bangladesh, and they are known as mistpouffers.

The gas could also escape forming a large amount of small bubbles instead of one large one. This can be seen in the following image:

gas escaping lake
"Ebullition" on the surface of a lake due to methane degassing. From: [6]

This is gas escaping at a lake in Alaska, but it is not methane from an oil field but degassing from methane hydrates.[6] The lake is shallow (roughly 2m - 6.5 ft.) so no great volumes of gas can accumulate there.

This smaller bubbles outburst could also sink ships because the water with methane bubbles would have a lower density than usual (1 g/cm3). Even a person with a life jacket would sink like a stone is this less denser water.

Bibliography.

[1] Anónimo, Volvió a aparecer el monstruo del lago Nahuel Huapi: muchos testigos. Clarín, Buenos Aires. 02.02. 1988.
[2] Diario Hoy, (1998). Volvió a aparecer “Nahuelito” en Bariloche. La Plata, Argentina. 11.01.1998
[3] Bariloche 2000 Diario Digital, (2008). Uno ya era bastante. Bariloche, Argentina. 30.04.2008. http://www.bariloche2000.com/archivo/la-ciudad/30100.html
[4] Anna Salleh (2003). Giant bubbles could sink ships, say maths experts. ABC Science. 24.10.2003
[5] Coleman, L. y Huyghe, P., (2003). The Field Guide to Lake Monsters, Sea Serpents and Other Mystery Denizens of the Deep. New York: Jeremy P. Tarcher/Putnam. pp.120+
[6] Carolyn Ruppel, John Pohlman, and Charles Worley, (2009). Studying the Link Between Arctic Methane Seeps and Degassing Methane Hydrates U.S.G.S., Sound Waves. Oct. 2009.
[7] Departrment of Energy. Necessary Conditions for Methane Hydrate Formation
[8] Signato F. Nahuelito, Bariloche, Buenos Muchachos, Año 93.


Lea este post en español


Patagonian Monsters - Cryptozoology, Myths & legends in Patagonia
2010 International Year of Biodiversity Copyright 2009-2010 by Austin Whittall © 
Hits since Sept. 2009:
Copyright © 2009-2025 by Austin Victor Whittall.
Todos los derechos reservados por Austin Whittall para esta edición en idioma español y / o inglés. No se permite la reproducción parcial o total, el almacenamiento, el alquiler, la transmisión o la transformación de este libro, en cualquier forma o por cualquier medio, sea electrónico o mecánico, mediante fotocopias, digitalización u otros métodos, sin el permiso previo y escrito del autor, excepto por un periodista, quien puede tomar cortos pasajes para ser usados en un comentario sobre esta obra para ser publicado en una revista o periódico. Su infracción está penada por las leyes 11.723 y 25.446.

All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means - electronic, mechanical, photocopy, recording, or any other - except for brief quotations in printed reviews, without prior written permission from the author, except for the inclusion of brief quotations in a review.

Please read our Terms and Conditions and Privacy Policy before accessing this blog.

Terms & Conditions | Privacy Policy

Patagonian Monsters - https://patagoniamonsters.blogspot.com/