Black sturgeon , a member of the
genus Polygonidae , a tropical freshwater fish, distributed in the Mekong and Meenan river basins of Asia, with a body length of up to 15 cm. Crustaceans, algae, etc. feed on, and their habits are unknown. They can be used as food fish.
Black-crested cormorant
Right!
Black sturgeon , a member of the genus Polygonidae , a tropical freshwater fish, distributed in the Mekong and Meenan river basins of Asia, with a body length of up to 15 cm. Crustaceans, algae, etc. feed on, and their habits are unknown. They can be used as food fish.