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Great white shark (Carcharodon carcharias)

ruimendes1 Offline
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Quote:List of the largest specimens of Great White Sharks accepted by the scientific community
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( This post was last modified: 01-19-2025, 11:40 PM by ruimendes1 )


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Quote:=AT0PeQULWxIVUPcyXW0cCWvbXZkbxUFepRfJQVLJ_upKddMS5Pj9xdt1v5MtRwrBWhoOn0WD1w-Btm1Mul8tZS5U62YkAuJI1dMTstW9dK2a3_l1jXrww6FtY5DPVpR2m5V4yOJVUWas0vN9eZcz4404t2KwP7baJC4UQpvIykDB8s3zO1nidjJL9jNuLbVpGR91ZoGLZTzc4Hyjhvm4s_9GR1uCVmMTHQciGno]https://www.instagram.com/p/DE-35CSNudM/
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Quote:Chatham Islands of New Zealand 1980s
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Quote:
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Quote:5.20 m and 1520 kgs, Streaky Bay, Australia, 26 Apr 1990
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( This post was last modified: 01-28-2025, 07:14 PM by ruimendes1 )


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Quote:17 feet 6 inches and 4500 pounds, captured in September 1994 off San Pedro in the southern state of California in the USA.
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( This post was last modified: 01-28-2025, 07:14 PM by ruimendes1 )


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Quote:New photo the specimen the 5.35 m and 2350 kg, 8 March 1987, Favignana Island, Italy
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Quote:Could it be that the sea in China has specimens measuring 6 meters? These are 3 cases of specimens that could actually be that size?
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Quote:Sicientific 6 m specimen caugth in 6 m Dompu, Sumbawa Island, Indonesia, 31 July 2013?
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Quote:height comparison between the 5 m, East China Sea  2020 vs Giant Esst China Sea 2019  Based on the comparison with the recently captured 5-meter great white shark, it is very likely that the giant sharks captured before are much larger than we imagined. This is a giant great white shark captured previously. It can be seen that the top of the dorsal fin of this great white shark has been cut off. When a person sits on its back, the dorsal fin can reach as high as a person's collarbone, and the complete dorsal fin may reach as high as a person's neck. Moreover, when people sit on it, their feet are still far away from the ground. It is not difficult to see that this great white shark is much thicker and larger than the 5-meter-level one above. Possibly reaching the level of "Deep Blue", the world's largest great white shark
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( This post was last modified: 02-05-2025, 07:11 PM by Apex Titan )

Mystery as giant-brained great white sharks wash up on Atlantic beaches

Scientists have been left baffled by the increasing number of dead great white sharks with enlarged brains that are washing up on beaches across North America.

The marine mystery is causing alarm among the scientific community in Canada and the United States who are yet to discover what is causing the inflammation. 

Before August 2023, the Canadian Wildlife Health Cooperative (CWHC), which studies wildlife health issues, had not come across a dead white shark in 30 years.

But when one did wash up on Prince Edward Island with no signs of injury it puzzled experts before they eventually found meningoencephalitis, an inflammation of brain tissues that eventually disrupts normal cognitive functions, to be the cause of death.

After this a further four great white sharks have washed up on beaches across Canada's Atlantic coast and similar phenomenon has been noted in the United States - with the first being recorded in July 2022 off the coast of Massachusetts.

Concerningly, most of the fish, which are famed for their strong immune systems, were all found to be suffering from the same brain inflammation.

Speaking to the New York Times, Dr Megan Jones - a veterinary pathologist and regional director of the CWHC - said cases of bacterial infections cause brain inflammation have been recorded in the past.
However, these infections were easy to identify and she is now part of a group of scientist determined to discover whether the species is now facing a new unknown threat.

A dead great white shark washed ashore on Nauset Beach, Massachusetts, in October 2024. Scientists have been left baffled by the increasing number of dead great white sharks with enlarged brains that are washing up on beaches across North America:


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Dr Jones said: 'Three of these five seem to have the same potentially infectious disease affecting their brain.' 

'We need to know more about what that is.'

She added that if a shark’s brain is squeezed it may no longer be able to feed or could lose its way and get stuck in shallow water becoming beached. 

Other scientists such as Tonya Wimmer, executive director of the Canada-based Marine Animal Response Society, have speculated that the rising number of dead sharks could be the natural result of population increase.

With more sharks dying simply because there are more of them in the ocean. 

Factors such as climate change has led the waters of the Atlantic to become more warm pushing the predators more north.

Similarly their primary prey, seals have also seen their population recover providing an abundance of food.

Compared other marine wildlife, such as whales and dolphins, there is still a lot of unknowns about sharks and research into them remains underfunded.

On top of this, great white sharks are largely misunderstood as a species. 

Thanks to blockbuster hits such as Jaws and Deep Blue Sea, the marine animal has been painted as a seaborne villain which will attack any person who swims into its path. 

However, in reality deliberate shark attacks on humans are extremely rare. 

Instead it is mankind that pose more of a threat to great whites with commercial fisheries being a key threat.

Globally the species is now listed as vulnerable with the number of great whites steadily decreasing with an estimated 5,0000 to 3,500 left in the wild. 

https://www.dailymail.co.uk/sciencetech/...antic.html
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ruimendes1 Offline
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Quote:California Gulf, Mexico, 2008
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Quote:Photo take in 2023 belong to specimen caugth in 6 Nov 1985 on Anacapa Island, California, USA has 5.63 m and 2123 kgs.
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Quote:Some of the photos taken by Jon Abela of the specimen captured on April 17, 1987 in Malta, at the time it was considered the largest shark specimen ever recorded
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Quote:4.80 m and 2000 kgs, 4 June 1962, Grecce 
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Serbia le serb Offline
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( This post was last modified: Yesterday, 03:42 AM by le serb )

One of my first posts was about a Female Great White shark caught in Greece, Chalkidiki year 1973 (date of landing is somewhere stated as 1983 or 1985). There wasn't much info about this shark until recently. About two years ago, some local Greek news covered this story. From what I understood, their main focus was the place itself beach and the bar, but in an interesting part they mention and show pictures of this White Shark. The guy who talks about it was there when the shark was landed. He said it was about 7.5 meters and 2.5 tons. I tried my best to accurately measure the shark. I didn't really go over board, I used 170cm as the main size factor as he was standing right in front of the shark gutting it. (as we can see by the blood in the water and around the shark). Using 170cm tall man, I got 698cm TL. Perhaps the previously stated 750cm might not be some heavily exaggerated claim. Knowing that man could be taller than that, judging by the average height of the Greek males. A size claim of 750cm could be reasonable. Of course, a shark of that size would be expected to be no less than 3 tons. I also have an explanation for that shark weight stated by the man could be the gutted shark they later weighted when cut in parts. https://www.thes.gr/apodraseis/paralia-x...nteo-foto/


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