Sturgeon

Woman selling sturgeon at a market in Türkmenbaşy, Turkmenistan

A young lake sturgeon (Acipenser fulvescens)

Sturgeon is the common name for the 27 species of fish belonging to the family Acipenseridae. Their evolution dates back to the Triassic some 245 to 208 million years ago. The family is grouped into four genera: Acipenser, Huso, Scaphirhynchus and Pseudoscaphirhynchus. Four species may now be extinct. Two closely related species, Polyodon spathula (paddlefish) and Psephurus gladius (Chinese paddlefish, possibly extinct) are of the same order, Acipenseriformes, but are in the family Polyodontidae and are not considered to be "true" sturgeons. Both sturgeons and paddlefish have been referred to as "primitive fishes" because their morphological characteristics have remained relatively unchanged since the earliest fossil record. Sturgeons are native to subtropical, temperate and sub-Arctic rivers, lakes and coastlines of Eurasia and North America.

单词	Acipenserids
释义	Acipenserids 英语百科 Sturgeon Sturgeon is the common name for the 27 species of fish belonging to the family Acipenseridae. Their evolution dates back to the Triassic some 245 to 208 million years ago. The family is grouped into four genera: Acipenser, Huso, Scaphirhynchus and Pseudoscaphirhynchus. Four species may now be extinct. Two closely related species, Polyodon spathula (paddlefish) and Psephurus gladius (Chinese paddlefish, possibly extinct) are of the same order, Acipenseriformes, but are in the family Polyodontidae and are not considered to be "true" sturgeons. Both sturgeons and paddlefish have been referred to as "primitive fishes" because their morphological characteristics have remained relatively unchanged since the earliest fossil record. Sturgeons are native to subtropical, temperate and sub-Arctic rivers, lakes and coastlines of Eurasia and North America.
随便看	thermal sealer thermal sealing thermalseal separation sleeve thermal season thermal senitivity thermal sensation Thermal Sensation Disorder Thermal Sensation Disorders thermal sensations thermal sense thermal sensibility thermal sensing device thermal sensitive ceramic thermal sensitive ceramics thermal sensitive effect thermal sensitive element thermal sensitive material thermal sensitive paper thermal sensitive parameter thermal sensitive plant thermal sensitive resister thermal sensitive ribbon thermal sensitive stock thermal sensitivity thermal sensitivity drift

Acipenserids

Sturgeon