Results 171 to 180 of about 1,152 (209)

Sturgeons and paddlefishes (Acipenseriformes)

2009
Abstract The extant sturgeons (Acipenseridae, containing four genera—Acipenser, Huso, Pseudoscaphirhynchus, and Scaphirhynchus) and paddleAshes (Polyodontidae, containing two monospeciAc genera—Polyodon and Psephurus) with some extinct families form a monophyletic group of the ray-Anned Ashes, the Order Acipenseriformes.
Zuogang Penga, Rui Diogob, Arne Ludwigc, Shunping Hea   +3 more
exaly   +2 more sources

Identification of Acipenseriformes species in trade

Journal of Applied Ichthyology, 2008
Summary Sturgeons and paddlefishes (Acipenseridae) are highly endangered freshwater fishes. Their eggs (sold as caviar) are one of the most valuable wildlife products in international trade. Concerns of overharvesting and the conservation status of many of the 27 extant species of Acipenseriformes led to all species being included on the CITES ...
exaly   +2 more sources

The threatened status of acipenseriform species: a summary

Environmental Biology of Fishes, 1997
...increased demand has recently driven the price of black market smoked sturgeon as high as $ 26 a kilogram. With poachers standing to gain roughly a third of this price [besides the much higher price of caviar], a large fish could be worth thousands of dollars.
Vadim J. Birstein, William E. Bemis, John R. Waldman   +2 more
openaire   +1 more source

Paddlefish and Sturgeon (Chondrostei: Acipenseriformes: Polyodontidae and Acipenseridae) from Lower Paleocene Deposits of Montana, U.S.A.

Journal of Vertebrate Paleontology, 2020
Paleocene deposits of the Tullock Member of the Fort Union Formation, Montana, U.S.A., have yielded several new specimens of †Polyodon tuberculata, a taxon previously described from the formation, as well as a new genus and species of sturgeon ...
A. Murray, D. Brinkman, D. Demar, G. Wilson   +3 more
semanticscholar   +1 more source

The possibilities of using of captive and domestic broodstocks for saving of natural populations: 1. Acipenseriformes (part 1)

Rybovodstvo i rybnoe hozjajstvo (Fish Breeding and Fisheries)
In last years the stocks of Russian species of sturgeons decreased to critical level which can be followed by their complete extinction in nature. As a result, the number of sturgeons beginning spawning migration into rivers are extremely small, but ...
I. Trenkler
semanticscholar   +1 more source

Redescription of †Yanosteus longidorsalis Jin et al., 1995 (Chondrostei, Acipenseriformes, †Peipiaosteidae) from the Early Cretaceous of China

Journal of Paleontology, 2020
. The family †Peipiaosteidae contains the genera †Peipiaosteus, †Stichopterus, †Spherosteus, †Yanosteus, and †Liaosteus, all from Late Jurassic to Early Cretaceous deposits of China, Russia, Kazakhstan, and Mongolia. Although the family has taxonomically
E. Hilton, L. Grande, F. Jin
semanticscholar   +1 more source

Leo Semenovich Berg and the biology of Acipenseriformes: A dedication

Environmental Biology of Fishes, 1997
This volume is dedicated to the memory of Leo Semenovich Berg (1876–1950), a Russian ichthyologist and geographer. In the foreword to the English translation of Berg's remarkable treatise, ‘Nomogenesis or evolution according to law’, Theodosius Dobzhansky wrote: ‘Berg was one of the outstanding intellects among Russian scientists.
Vadim J. Birstein, William E. Bemis
openaire   +1 more source

The possibilities of using of captive and domestic broodstocks for saving of natural populations: 1. Acipenseriformes (part 2)

Rybovodstvo i rybnoe hozjajstvo (Fish Breeding and Fisheries)
In last years the stocks of Russian species of sturgeons decreased to critical level which can be followed by their complete extinction in nature. As a result, the number of sturgeons beginning spawning migration into rivers are extremely small, but ...
I. Trenkler
semanticscholar   +1 more source

Comparative transcriptome analysis reveals expression signatures of albino Russian sturgeon, Acipenseriformes gueldenstaedtii.

Marine Genomics, 2019
Albinism is a genetically inherited condition that is caused by a series of genetic abnormalities leading to a reduction in melanin production. Russian sturgeon is one of the most valuable freshwater fish species worldwide, and albino individuals have ...
Yiwen Gong, Mou Hu, Shijian Xu, Bin Wang, Chunlin Wang, X. Mu, P. Xu, Yanliang Jiang   +7 more
semanticscholar   +1 more source

Sturgeon rivers: an introduction to acipenseriform biogeography and life history

Environmental Biology of Fishes, 1997
We present an overview of the global distribution of all 27 living species of Acipenseriformes in an attempt to understand their biogeographic history and the range of life history patterns displayed by different species. Our biogeographic analysis (based on the most recent phylogenetic analysis including fossil Acipenseriformes) suggests that ...
William E. Bemis, Boyd Kynard
openaire   +1 more source