Freshwater fish
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Freshwater fish are fish species that spend some or all of their lives in bodies of fresh water such as rivers, lakes, ponds and inland wetlands, where the salinity is less than 1.05%. These environme
Tench are common freshwater fish throughout temperate Eurasia.
Sturgeon are found both in anadromous and fresh water stationary forms
The critically endangered Mekong giant catfish
Dams can create issues for freshwater habitats.
Sturgeon
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Sturgeon are the 27 species of fish belonging to the family Acipenseridae. The earliest sturgeon fossils date to the Late Cretaceous, and are descended from other, earlier acipenseriform fish, which d
Freshwater fish
…have suffered too much scale loss will die. They also have well-developed kidneys to reclaim salts from body fluids before excretion. Migratory fish Sturgeon are found both in anadromous and fresh water stationary forms Many species of fish do reproduce in freshwater, but spend most of their adult lives in…
Yanosteus longidorsalis, a member of the extinct acipenseriform family Peipiaosteidae from the Early Cretaceous (125–120 Mya) Yixian Formation in Liaoning, China
A fossil sturgeon (right) from the Tanis fossil site, showing the longstanding morphological conservatism of this group
The Atlantic sturgeon (A. oxyrhynchus) is one of the most basal sturgeon species
Shovelnose sturgeons (Scaphirhynchus platorynchus) are morphologically atypical members of the group