‘River monster’ fish caught in Detroit River may be over 100 years old

Video above: Will these animals play a role in cleaning viruses from the ocean? Scientists were in shock when they came across a “real river monster” – a giant fish believed to be more than 100 years old. Staff from the Alpena The Fish and Wildlife Conservation Office caught the fish – a female sea sturgeon 6 feet, 10 inches, and weighs a whopping 240 pounds – in the Detroit River in April. Experts believe the fish is one of the largest sea sturgeon ever recorded in the U.S. and based on the creature’s girth and size, it was believed to be female and over 100 years old. “So it probably hatched in the Detroit River around 1920 when Detroit became the fourth largest city in America.” The Alpena Fish and Wildlife Conservation Office said on Facebook. Lake sturgeon are freshwater fish that live in North America, from Hudson Bay to the Mississippi River drainages. The slow moving creatures that prefer the sand or gravel habitat at the bottom of lakes or river beds migrate up rivers during the spawning season. Male sturgeons have a lifespan of 50 to 60 years, but a female can live up to 150 years. Freshwater life is classified as threatened in 19 of the 20 states where they are found. Overharvesting and habitat loss are one reason for their decline. The fish was released back into the river after processing. the service said.

Video above: Will these animals play a role in cleaning viruses from the ocean?

Scientists were in shock when they came across a “real river monster” – a giant fish believed to be more than 100 years old.

Staff at the Alpena Fish and Wildlife Conservation Office caught the fish – a female lake sturgeon 6 feet, 10 inches, and weighs a whopping 240 pounds – in the Detroit River in April.

Experts believe the fish is one of the largest sea sturgeon ever recorded in the United States. Due to the creature’s girth and size, it is believed to be female and over 100 years old.

“So it probably hatched in the Detroit River around 1920 when Detroit became the fourth largest city in America,” the Alpena Fish and Wildlife Conservation Office said on Facebook.

Lake sturgeon are freshwater fish that live in North America from Hudson Bay to the Mississippi drains. The slow moving creatures that prefer the sand or gravel habitats at the bottom of lakes or river beds migrate upriver during spawning season.

Male sturgeon have a lifespan of 50 to 60 years, but a female sturgeon can live up to 150 years, according to the US Fish & Wildlife Service.

Freshwater creatures are classified as threatened in 19 of the 20 states they occur in, with overharvesting and habitat loss being one reason for their decline.

The fish was released back into the river after processing, the service said.

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