Longnose gar louisiana fishing planet2/13/2024 And since 1900, at least 57 species of freshwater fish in North America have gone extinct. Around 40 percent of North American freshwater fish species have become imperiled in recent decades. These animals hatch at sea, live most of their lives in fresh water, then return to the ocean to reproduce.įreshwater fish face threats from human activity, such as overfishing, marine pollution, habitat loss, dam building, and the introduction of invasive species. Then there are catadromous species, or those that do it in reverse, such as freshwater eels. Longnose Gar ( Lepisosteus osseus) is a primitive species of Gar present in North America for about 100 million years. They hatch in fresh water, head out to sea, where they live until they return to fresh water to reproduce. Some species of freshwater fish, such as salmon and trout, are called anadromous. Worldwide, the number is over 10,000 species. There are more than 800 known freshwater fish species in North America alone. Nearly half of all fish species live in fresh water, which means they swim in the rivers, lakes, and wetlands that make up less than 3 percent of Earth’s water supply.
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