51813_Sturgeon biodioversity an.PDF

history and evolution of sturgeons in the Caspian and Black Sea basins. Berg gave his first short presentation on stur- geons in ...

northern parts of the Atlantic and Pacific oceans. Izvestiya Rossiiskoi Akademii Nauk 16: 1835-1842(in Russian). Berg, L.S. 1922 ...

der Gattung Acipenser.Ann. Wiener Mus. Naturgesch. 1: 261– 326. Grande, L. &W.E.Bemis.1991.Osteology and phylogenetic re- la ...

Part1:Diversity and evolution ofsturgeons and paddlefishes Acipenser,Aquipenser,Sturio-sturgeon woodcuts fromConrad Gesner(1558) ...

The three major commercial species of sturgeons from Caspian and Black seas: top-Huso huso,center-Acipenser stellatus,and bottom ...

EnvironmentalBiology of Fishes48: 25 - 7 1, 1997. © 1997 Kluwer Academic Publishers. Printed in the Netherlands. Anoverviewof Ac ...

the sense of Gans 1986) which we hope will provoke (1833) and Fitzinger & Heckel (1836) to subdivide further basic work on t ...

2000 Lu (1994)-description of †Protopsephurus Zhou (1992)-redescription of †Peipiaosteus Grande & Bemis (1991)-systematics o ...

Few workers ever accepted the Aldinger-Nielsen hypothesis (see Yakovlev 1977 for history and a de- tailed critique), and it was ...

et al. 1997 this volume). Published molecular phylo- netic allometry of paddle growth in Polyodon genetic research including Aci ...

Figure3. Tree of ing craniates showing generally accepted interpretation of relationships for stem Actinopterygii. This tree is ...

Polypterus - Recent, Africa † Mimia Upper Devonian, Australia †Birgeria - Lower Triassic, Greenland Figure4.Someliving and fossi ...

Family †Chondrosteidae †Chondrosteus - Jurassic, Europe Figure 5.Reconstruction of †ChondrosteusfromWoodward(1895c). †Chondroste ...

Family †Peipiaosteidae †Peipiaosteus-Jurassic, China Figure 6.Reconstruction of †Peipiaosteusfrom Zhou (1992). See further comme ...

Figure 7. Aspects of the feeding system of the Chinese paddlefish, Psephurus gladius: a -A preserved specimen with its jaws in t ...

Figure 8.Green River paddlefish, †Crossopholis magnicaudatus. More than twelve complete specimens of this taxon are known, al- t ...

Figure 9. The living North American paddlefish,Polyodon spatthula: a – A pond-reared specimen from a commercial fish farm in Mis ...

triangular-shaped gill rakers, so it clearly was not specialized for filter feeding. The large, piscivorous Chinese paddlefish,P ...

Figure11.A large specimen of kaluga.Huso dauricus.from the Amur River near Khabarovsk. Siberia. Photograph courtesy of Viktor Sv ...

Figure 12.Two North American species of Acipenser: a -A shortnose sturgeon,Acipenser brevirostrum, being stripped by B. Kynard a ...