Sturgeon
Acipenseridae (multiple species, e.g., Acipenser sturio)
Sturgeons are ancient, large-bodied fish known for their elongated bodies and distinctive bony scutes along their backs. They primarily inhabit temperate rivers, lakes, and coastal environments in the Northern Hemisphere, with some species migrating between freshwater and the sea. Sturgeons are famous for producing caviar, making them highly valued but also heavily exploited. Many species are slow-growing and can live for decades, maturing late and spawning infrequently. Due to overfishing, habitat loss, and pollution, most sturgeon species are now considered threatened or endangered.
Fish Freshwater rivers, lakes, and coastal waters
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