It appears to be a baby loggerhead turtle, which can grow to be 3-feet long and up to 300 pounds.
A silver tag attached to the reptile's flipper says National Park Service of Florida.
Marine biologists plan to release it back into the wild.
Kaheem Evans said he was fishing off a pier in Canarsie, Brooklyn, on Wednesday when he hooked the turtle.
The 23-year-old Queens resident says he's been fishing there for years. But it's the first time he's caught a turtle.
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