Fourspine stickleback
Apeltes quadracus
The fourspine stickleback possesses an elongated, fusiform body lacking scales. Typically, it exhibits four or five …
Freshwater fish spend part or all of their lives in fresh water, such as rivers and lakes, with a salinity of less than 1.05%.
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Apeltes quadracus
The fourspine stickleback possesses an elongated, fusiform body lacking scales. Typically, it exhibits four or five …
Acipenser fulvescens
Lake sturgeon are somewhat torpedo-shaped, and the upper lobe of the caudal fin is longer than …
Acipenser medirostris
Sturgeon and paddlefish, best known for their black caviar, belong to the order Acipenseriformes, but at …