Prelude to sturgeon biodiversity and conservation, E.K. Balon; sturgeon biodiversity and conservation - an introduction, W.E. Bemis et al. Part 1 Diversity and evolution of sturgeons and paddlefishes: an overview of acipenseriformes, W.E. Bemis et al; osteology and phylogenetic interrelationships of sturgeons (acipenseridae), E.K. Findeis; phylogeny of the acipenseriformes - cytogenetic and molecular approaches, V.J. Birstein et al; how many species are there within the genus acipenser?, V.J. Birstein, W.E. Bemis. Part 2 Biology and status reports on sturgeons and paddlefishes: sturgeon rivers - an introduction to acipenseriform biogeography and life history, W.E. Bemis, B. Kynard; past and current status of sturgeons in the upper and middle Danube river, K. Hensel, J. Holcik; endangered migratory sturgeons of the lower Danube River and its delta, N. Bacalbasa-Dobrovici; present status of commercial stocks of sturgeons in the Caspian Sea basin, R.P. Khodorevskaya et al; species structure, contemporary distribution and status of the Siberian sturgeon, acipenser baerii, G.I. Ruban; endemic sturgeons of the Amur River - kaluga, huso dauricus, and Amur sturgeon, acipenser schrenckii, M.L. Krykhtin, V.G. Svirskii; biology, fisheries, and conservation of sturgeons and paddlefish in China, Q. Wei et al; biology and life history of Dabry's sturgeon, acipenser Dabryanus, in the Yangtze River, P. Zhuang et al; observations on the reproductive cycle of cultured white sturgeon, acipenser transmontanus, S.I. Doroshov et al; contemporary status of the North American paddlefish, polyodon spathula, K. Graham; life history and status of the shovelnose sturgeon, scaphirhynchus platorynchus, K.D. Keenlyne; the status and distribution of lake sturgeon, acipenser fulvescens, in the Canadian provinces of Manitoba, Ontario and Quebec - a genetic perspective, M.M. Ferguson, G.A. Duckworth; lake sturgeon management in the Menominee River, a Wisconsin-Michigan boundary water, T.F. Thuemler; life history, Latitudinal patterns, and status of the shortnose sturgeon, acipenser brevirostrum, B. Kynard; status and management of Atlantic sturgeon, acipenser oxyrinchus, in North America, T.I.J. Smith, J.P. Clugston; Atlantic and shortnose sturgeons of the Hudson River - common and divergent life history attributes, M.B. Bain. biological characteristics of the European Atlantic sturgeon, acipenser sturio, as the basis for a restoration programme in France, P. Williot et al. Part 3 Controversies, conservation and summary: sturgeons in the Aral Sea ecological catastrophe, I. Zholdasova; threatened fishes of the world - pseudoscaphirhynchus spp. (acipenseridae), V.J. Birstein; molecular analysis in the conservation of sturgeons and paddlefish, I.I. Wirgin et al; sensitivity of North American sturgeons and paddlefish to fishing mortality, J. Boreman; alternatives for the protection and restoration of sturgeons and their habitat, R.C.P. Beamesderfer, R.A. Farr.