Acipenser

Starlet (Acipenser ruthenus )

Acipenser is the most diverse genus of fish from the family of sturgeons ( Acipenseridae ).

Features

Acipenser are typical interference with elongated physique, heterozerker tail fin, and five rows of bone shields along the body. The head is not broadened in contrast to the blade sturgeon and the bone plates close the tail style never completely. In contrast to the Hausen ( Huso ) the mouth is round in cross-section and open downward and relatively small. The barbels are roundish.

Species

The number of species that can be distinguished within the genus Acipenser varies between different authors. The great rarity of many species and the possibility of hybridization between species more difficult. General acknowledged, for example, at Fishbase and the IUCN, the following 17 species are recognized. Partially recognized as an additional type Acipenser colchicus, the other authors as conspezifisch with the Russian sturgeon ( Acipenser gueldenstaedti ) is regarded as the Encyclopedia of Life Fauna Europaea and the. ITIS lists a total of 21 species, with the Acipenser listed here missing mikadoi and Acipenser albertensis, Acipenser kikuchii, Acipenser ornatus, Acipenser added multiscutatus ( according to Fishbase Acipenser schrenckii ) and Acipenser toliapicus.