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Taken from the national geographic, thought it was interesting, the idea of robotic fish keeping an eye on things:-
Biologists were stunned in 2013, to pull a goldfish more than 15 inches long from Lake Tahoe. And it had company; aquarium fish dumped by their owners have been multiplying in the lake-and growing enormous. Since the goldfish have plenty of food and little competition, “it may be possible to see larger goldfish in the the future in Tahoe” says Sudeep Chandra, an aquatic ecosystems researcher at the university of Nevada Reno.
The secret to growing these monster size fish is time. Unlike people who stop growing after puberty, many fish keep growing as long as they live. A lake sturgeon for example, can live to be over a 100 and grow up to nine feet long, in much of the world however, over fishing prevents fish from living long lives. As a result, “the world is losing its big fish” says fish biologist Zeb Hogan.
Yet in some places where fishing is restricted, new size records are being set, “what seemed like fish stories in the past now seem believable” says Hogan, host of the monster fish television show on Nat geo Wild. The return of true behemoths could take 30 or 40 years he says.
As the goldfish keep growing in Lake Tahoe Chandra aims to document how they are changing the ecosystem. On the drawing board; a miniature robot fish that could stealthily observe the giants.
Biologists were stunned in 2013, to pull a goldfish more than 15 inches long from Lake Tahoe. And it had company; aquarium fish dumped by their owners have been multiplying in the lake-and growing enormous. Since the goldfish have plenty of food and little competition, “it may be possible to see larger goldfish in the the future in Tahoe” says Sudeep Chandra, an aquatic ecosystems researcher at the university of Nevada Reno.
The secret to growing these monster size fish is time. Unlike people who stop growing after puberty, many fish keep growing as long as they live. A lake sturgeon for example, can live to be over a 100 and grow up to nine feet long, in much of the world however, over fishing prevents fish from living long lives. As a result, “the world is losing its big fish” says fish biologist Zeb Hogan.
Yet in some places where fishing is restricted, new size records are being set, “what seemed like fish stories in the past now seem believable” says Hogan, host of the monster fish television show on Nat geo Wild. The return of true behemoths could take 30 or 40 years he says.
As the goldfish keep growing in Lake Tahoe Chandra aims to document how they are changing the ecosystem. On the drawing board; a miniature robot fish that could stealthily observe the giants.
