December 2014 • Volume 30 (6) • 1105–1642 Proceedings of the 7th International Symposium on Sturgeons Vancouver Island University, Nanaimo, British Columbia, Canada July 21 – 25, 2013 Special Issue Editors: Harald Rosenthal, Joern Gessner, Paolo Bronzi, and Tim Haxton Journal of Applied Ichthyology Now incorporating the Archive of and Marine Research

Edited by Harald Rosenthal Dietrich Schnack

Official journal of The World Sturgeon Conservation Society

Published in cooperation with the German Scientific Commission for Marine Research Journal of Applied Ichthyology Official Journal of the World Sturgeon Conservation Society

The “Journal of Applied Ichthyology” serves as a world-wide forum for all aspects of applied research and . The Journal strives for complete coverage of these subject areas, the highest possible quality of papers, quick publication and a high technical standard of presentation. The “Journal of Applied Ichthyology” is international and interdisciplinary and publishes original contributions, reviews and short notes dealing with Aquaculture (including extensive and intensive Culture Techniques, Nutrition, Physiology, and Endocrinology), Development and Management of Fisheries Resources (including Technology), Ecotoxicology, Fisheries Ecology, Fish Health and Pathology, Fisheries in Developing Countries, and Genetics. The main theme is research orientated toward practical application. Language of publication is English.

Editors H. Rosenthal (Editor-in-Chief) Nutrition and Physiology Kaiser, H. (Grahamstown, Schifferstrasse 48 To be announced South Africa) 21629 Neu Wulmstorf Fish Health and Pathology Kloas, W. (, ) Germany S. LaPatra Kocovsky, P. M. (Sandusky, OH, USA) D. Schnack Clear Springs Foods, Inc. Krumme, U. (Bremen, Germany) Leibniz Institute of Marine Sciences Research Division Linhart, O. (Vodnany, Czech Republic) IFM-GEOMAR PO Box 712 McCarthy, I. (Bangor, UK) Düsternbrooker Weg 20 Buhl, Idaho 93316, USA Morgan, J. (Nanaimo, Canada) D-24105 Kiel/Germany Genetics Pickova, J. (Uppsala, Sweden) Assistant to the Editor-in-Chief A. Ludwig Pourkazemi, M. (Rasht, Iran) C. A. Battenfeld Leibniz Institute for Zoo and Wildlife Ruban, G. (Moscow, Russia) Friedrich-Engels-Strasse 77 Research Schlechtriem, C. (Schmallenberg, D-03046 Cottbus/Germany RG Evolutionary Genetics Germany) Subject Editors Alfred-Kowalke-Strasse 17 Segner, H. (Bern, Switzerland) 10315 Berlin Steele, C. W. (Edinboro, PA, USA) Aquaculture Germany Sulak, K. J. (Gainesville, FL, USA) H. Rosenthal (see above) Editorial Board Tanaka, M. (Kyoto, Japan) Thiel, R. (, Germany) Fisheries Resources Aro, E. (Helsinki, Finland) D. Schnack Asturiano, J. F. (Valencia, Spain) Trippel, E. A. (St Andrews, Canada) (see above) Black, E. (Ottawa, Canada) Wolter, C. (Berlin, Germany) Brander, K. (Copenhagen, Denmark) Ecotoxicology Production Editor, P.-D. Hansen Bronzi, P. (Milan, Italy) Rajila Rathina Selvi J Technische Universität Berlin Bruch, R. (Oshkosh, WI, USA) email [email protected] Department of Ecological Impact Buck, B. H. (Bremerhaven, Germany) Research and Ecotoxicology, Cabral, M. (Lisbon, Portugal) Journal Publication Manager, Ernst-Reuter-Platz 1 (Sekr.BH9-01) Cardinale, M. (Lysekil, Sweden) Rosie Trice D-10587 Berlin, Germany Chang, J. (Wuhan, Hubei, China) phone +44 1865 47 6217 Fisheries Ecology Congiu, L. (Padua, Italy) email [email protected] n.n. Farrell, E. (Oranmore, Ireland) Fisheries in Developing Countries Focken, U. (Stuttgart, Germany) U. Saint-Paul Froese, R. (Kiel, Germany) Leibniz-Zentrum für Marine Hammer, C. (Hamburg, Germany) Tropenökologie Horváth, A. (Godollo, Hungary) Fahrenheitstrasse 6 Isaac, V. (Belem, Brazil) D-28359 Bremen/Germany

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All rights reserved: Articles published in this Journal are under copyright protection. Such rights as arise from it are reserved, in particular those of translation, reprinting, public lecture, reproduction of illustrations and tables, radio and television transmission, microfilming or other methods of reproduction, including extract form. Duplicating this journal or parts thereof is not permitted. The copying of individual articles or parts thereof is permitted only under the provisions of the German Copyright Law of September 9, 1965, as amended on June 24, 1985. On principle it is liable to charges. Contraventions are subject to the penalty clause of the Copyright Law. Legal copies should bear a note identifying the source and the copier. Disclaimer: The Publisher and Editors cannot be held responsible for errors or any consequences arising from the use of information contained in this journal; the views and opinions expressed do not necessarily reflect those of the Publisher and Editors, neither does the publication of advertisements constitute any endorsement by the Publisher and Editors of the products advertised. Proceedings of the 7th International Symposium on Sturgeons Vancouver Island University, Nanaimo, British Columbia, Canada – July 21 – 25, 2013

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Supporter Journal of Applied Ichthyology December 2014 • Volume 30 (6) • 1105–1642

Proceedings of the 7th International Symposium on Sturgeons Vancouver Island University, Nanaimo, British Columbia, Canada – July 21 – 25, 2013 Special Issue Editors: Harald Rosenthal, Joern Gessner, Paolo Bronzi, and Tim Haxton

Executive Planning Committee Scientifi c Advisory Committee Members: Members: Dr. Paolo Bronzi, Milano, Italy Dr. Paolo Bronzi, Milano, Italy Dr. Ron Bruch, Oshkosh, USA Dr. Ron Bruch, Oshkosh, USA Dr. Jörn Gessner, Berlin, Germany Dr. Jianbo Chang, Wuhan, China Dr. Tim Haxton, Petersborough, Canada Dr. Mikhail, Chebanov, Krsnodar, Russia Mr. Don Tillapaugh, Nanaimo, Canada Dr. Leonardo Congiu, Padova, Italy Dr. Harald Rosenthal, Neu Wulmstorf, Germany Dr. Jörn Gessner, Berlin, Germany Dr. Qiwei Wei, Wuhan, China Dr. Tim Haxton, Petersborough, Canada Dr. Scott LaPatra, Buhl, USA Dr. Mohammad Pourkazemi, Rasht, Iran Dr. Harald Rosenthal, Neu Wulmstorf, FRG Dr. Ken Sulak, Gainesville, USA Dr. Molly Webb, Bozeman, USA Dr. Qiwei Wei, Wuhan, China

List of referees Hans Ackefors, Sweden Renata Guimarães Moreira, Scott Reid, USA Peter Allen, USA Spain Eric Rochard, France Hadi Alavi, Czech Republic Niels Hammer, Germany Harald Rosenthal, Germany Gerd Michael Arndt, Germany Peter-Dietrich Hansen, Germany Eva Roth, Denmark Juan Asturiano, Spain Tim Haxton, Canada Georgii Ruban, Russia Nancy Auer, USA Akos Horvath, Hungary Ulrich Saint-Paul, Germany Cameron Barth, Canada Perer Hufschmidt, Swiss Christian Schlechtriem, Bin, Zhu, China Horst Kaiser, South Africa Germany Edward Black, Canada Alexander Kasumyan, Russia Helmut Segner, Swiss Paolo Bronzi, Italy Thomas Keevin, USA Kirk Steffensen, USA Ronald Bruch, USA Kevin Kappenman, USA Kenneth Sulak, USA Bela Buck, Germany Angela Koehler, Germany Ralph Thiel, Germany John Casselman, USA Uwe Krumme, Germany Edward Trippel, Canada Jianbo Chang, China Boyd Kynard, USA Joel Van Eenenam, USA Mikhail, Chebanov, Russia Scott LaPatra, USA Molly Webb, USA Andrzej Ciereszko, Poland Otomar Linhart, Czech Republic Helmut Wedekind, Germany Leo Congiu, Italy Esther Lubszens, Israel Qiwei Wei, China Jacky Cosson, France Arne Ludwig, Germany Christian Wolter, Germany Martin Flajhans, Czech Republic Vaughn Paragamian, USA Eckhard Witten, Belgium Ulfert Focken, Germany Jama Pickova, Sweden Swen Würtz, Germany , Germany Stephan Pflugmacher, Germany Joern Gessner, Germany Mohammad Pourkazemi, Iran

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Journal of Applied Ichthyology

December 2014 • Volume 30(6) • 1105–1642

Conclusions and Recommendations 1174 D. Braun, I.D. Phillips & B. Wissel Analysis of δ13C in lake sturgeon (Acipenser fulvescens 1105 H. Rosenthal, J. Gessner & P. Bronzi [Rafinesque 1817]) fin and muscle tissue: an application of three Conclusions and recommendations of the 7th International arithmetic lipid correction models Symposium on Sturgeons: Sturgeons, Science and Society at the cross-roads – Meeting the Challenges of the 21st Century* 1181 J.-J. Liu, Q.-F. Li, B.-F. Guo & Y. Gao Selective utilization of fatty acids by Chinese sturgeon General Biology and Ecology/Ecology (Acipenser sinensis Gray, 1835) during gonadal development 1109 C.Y. Wang, H. Du, H. Zhang, J.M. Wu, Z.G. Liu & Q.W. Wei and first year juvenile growth Migration of juvenile and sub-adult Chinese sturgeon Acipenser Physiology and Behaviour sinensis Gray, 1835 in the Yangtze River, China below the Gezhouba Dam 1186 C. Bocast, R.M. Bruch & R.P. Koenigs Sound production of spawning lake sturgeon (Acipenser 1115 E. Parker & B. Kynard fulvescens Rafinesque, 1817) in the Lake Winnebago watershed, Latitudinal variation in ontogenetic behaviour of shortnose Wisconsin, USA sturgeon, Acipenser brevirostrum Lesueur, 1818: an artificial stream study 1195 N. Delage, J. Cachot, E. Rochard, R. Fraty & P. Jatteau Hypoxia tolerance of European sturgeon (Acipenser sturio L., 1125 V.N. Koshelev, G. Ruban & A. Shmigirilov 1758) young stages at two temperatures Spawning migrations and reproductive parameters of the kaluga sturgeon, Huso dauricus (Georgi, 1775), and Amur sturgeon, 1203 C. Song, P. Zhuang, L.Z. Zhang, T. Zhang & J.Y. Liu Acipenser schrenckii (Brandt, 1869) Proximate composition and fatty acid profile in different tissues of wild female Chinese sturgeon (Acipenser sinensis Gray, 1835) 1133 K.R. Winders, J.E. Dattilo, T.R. Huffmon & V.H. Travnichek Seasonal diet composition of juvenile and adult pallid 1207 L.Z. Zhang, T. Zhang, P. Zhuang, F. Zhao, B. Wang, G.P. Feng, sturgeon, Scaphirhynchus albus (Forbes & Richardson, 1905), C. Song, Y. Wang & S.J. Xu in the channelized lower Missouri River Discriminant analysis of blood biochemical parameters at different developmental gonad stages and gender identification 1141 M. Ishihara, B. Tokui, T. Abe, S. Ijiri & S. Adachi for controlled breeding of Amur sturgeon (Acipenser schrenckii, Seasonal changes in oocyte maturational competence, ovulatory Brandt, 1869) competence and gonadotropin sensitivity of ovarian follicles in hybrid sturgeon, bester (Huso huso × Acipenser ruthenus) 1212 J. Ma, P. Zhuang, B. Kynard, T. Zhang & L.Z. Zhang Morphological and osteological development during early 1149 C.A. McDougall, P.J. Blanchfield & W.G. Anderson ontogeny of Chinese sturgeon (Acipenser sinensis Gray, 1835) Linking movements of lake sturgeon (Acipenser fulvescens Rafinesque, 1817) in a small hydroelectric reservoir to abiotic 1216 X.Y. Zhang, H. Du, Y.Z. Zhang, Y.P. Wang, J.J. Cai, Y. Chai, variables Z.G. Liu, X.M. Qiao & Q.W. Wei Hematological and biochemical responses of juvenile Chinese 1160 B. Kynard, E. Parker, B. E.Kynard & M. Horgan sturgeon, Acipenser sinensis Gray 1835, to exogenous 17b-estradiol Effect of velocity regime on ontogenetic dispersal and habitat use of Kootenai River White Sturgeon (Acipenser transmontanus, 1222 X.-Q. Leng, C.-J. Li & H. Cao Richardson, 1836) early life stages: An artificial stream study Expression pattern of somatolactin in the Chinese sturgeon, Acipenser sinensis Gray, 1835 1168 P.F. Mickle, M.S. Peterson, J.-M. Havrylkoff & P.O. Grammer Morphometric comparisons of the Gulf sturgeon (Acipenser 1229 P.J. Allen, Z.A. Mitchell, R.J. DeVries, D.L. Aboagye, oxyrinchus desotoi Mitchill, 1815) in western and eastern M.A. Ciaramella, S.W. Ramee, H.A. Stewart & R.B. Shartau population extremes Salinity effects on Atlantic sturgeon (Acipenser oxyrinchus oxyrinchus Mitchill, 1815) growth and osmoregulation ISSN 0175–8659 (Print) ISSN 1439–0426 (Online)

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1237 L. Wei, W. Qiwei & S. Li 1335 T. Haxton, M. Friday, T. Cano & C. Hendry Biochemical comparison between eggs from female Chinese Variation in lake sturgeon (Acipenser fulvescens Rafinesque, sturgeon (Acipenser sinensis Gray, 1835) reconditioned in 1817) abundance in rivers across Ontario, Canada freshwater and eggs from wild females: evaluation of female 1342 V.L. Paragamian & P. Rust reconditioning as a conservation culture technique Validation of a methodology to determine female white 1243 F. Zhao, P. Zhuang, T. Zhang, L. Zhang, J. Liu & J. Hou sturgeon (Acipenser transmontanus Richardson, 1836) habitat Non-lethal gill biopsy of juvenile hybrid sturgeon (Acipenser use within a riverscape during the spawning season ruthenus ♀ × A. schrenckii ♂): validity and impact on growth 1356 K.R. Winders & K.D. Steffensen and osmoregulation Population size of pallid sturgeon, Scaphirhynchus albus 1246 M.A.M. Siddique, J. Cosson, M. Psenicka & O. Linhart (Forbes & Richardson, 1905), in the lower Missouri River near A review of the structure of sturgeon egg membranes and of the Kansas City, Missouri, USA associated terminology 1362 M.J. Hamel, M.A. Pegg, J.J. Hammen & M.L. Rugg 1256 M. Kamaszewski, M. Wójcik, T. Ostaszewska, R. Kasprzak, Population characteristics of pallid sturgeon, Scaphirhynchus R. Kolman & M. Prusinská albus (Forbes & Richardson, 1905), in the lower Platte River, The effect of essential fatty acid (EFA) enrichment of Artemia sp. Nebraska nauplii on the enzymatic activity of Atlantic sturgeon (Acipenser 1371 T. Haxton, G. Whelan & R. Bruch oxyrinchus Mitchill, 1815) larvae – preliminary study Historical biomass and sustainable harvest of Great Lakes lake 1259 L.C. Bates, M.A. Boucher & J.M. Shrimpton sturgeon (Acipenser fulvescens Rafinesque, 1817) Effect of temperature and substrate on whole body cortisol and Population Management size of larval white sturgeon (Acipenser transmontanus Richardson, 1836) 1379 I. Jari´c, J. Gessner, M.-L. Acolas, P. Lambert & E. Rochard Modelling attempts utilized in sturgeon research: a review of the 1264 E. Gisbert, R. Asgari, Gh. Rafiee, N. Agh, S. Eagderi, state-of-the art H. Eshaghzadeh & C. Alcaraz Early development and allometric growth patterns of beluga 1387 J. Kampa, G. Hatzenbeler & M. Jennings Huso huso (Linnaeus, 1758) Status and management of lake sturgeon (Acipenser fulvescens Rafinesque, 1817) in the upper St. Croix River and Namekagon Genetics River, Wisconsin, USA 1273 H.-M. Yue, H. Cao, X.-H. Chen, H. Ye, C.-J. Li & H. Du 1393 E.K. Bouckaert, N.A. Auer, E.F. Roseman & J. Boase Molecular characterization of the cDNAs of two zona pellucida Verifying success of artificial spawning reefs in the St. genes in the Chinese sturgeon, Acipenser sinensis Gray, 1835 Clair–Detroit River System for lake sturgeon (Acipenser 1282 T.-Q. Xiao, C.-Y. Lu, C. Li, L. Cheng, D.-C. Cao & X.-W. Sun fulvescens Rafinesque, 1817) An AFLP-based approach for the identification of sex-linked 1402 C.A. McDougall, C.C. Barth, J.K. Aiken, L.M. Henderson, markers in Amur sturgeon Acipenser schrenckii Brandt, 1869 M.A. Blanchard, K.M. Ambrose, C.L. Hrenchuk, M.A. Gillespie 1286 D. Onara, D. Holostenco, M. Paraschiv & R. Suciu & P.A. Nelson Preliminary genetic variability of Lower Danube River young of How to sample juvenile Lake Sturgeon, (Acipenser fulvescens the year (YOY) beluga sturgeon Huso huso (Linnaeus, 1758) Rafinesque, 1817), in Boreal Shield rivers using gill nets, with an using mtDNA markers emphasis on assessing recruitment patterns 1290 C.C. Wilson, J.L. McDermid, K.M. Wozney, S. Kjartanson & Assessing Release Programmes/Culture for Fitness for Release T.J. Haxton 1416 E. Boscari & L. Congiu Genetic estimation of evolutionary and contemporary effective The need for genetic support in restocking activities and ex situ population size in lake sturgeon (Acipenser fulvescens conservation programmes: the case of the Adriatic sturgeon Rafinesque, 1817) populations (Acipenser naccarii Bonaparte, 1836) in the Ticino River Park 1300 C.B. Dillman, P. Zhuang, T. Zhang, L.-Z. Zhang, N. Mugue & 1423 J.M. Wu, Q.W. Wei, H. Du, C.Y. Wang & H. Zhang E.J. Hilton Initial evaluation of the release programme for Dabry's Forensic investigations into a GenBank anomaly: endangered taxa sturgeon (Acipenser dabryanus Duméril, 1868) in the upper and the importance of voucher specimens in molecular studies Yangtze River Status and Management of Poulations/Population Status 1428 K.J. Sulak, M.T. Randall & J.P. Clugston (retired) 1310 V. Koshelev, A. Shmigirilov & G. Ruban Survival of hatchery Gulf sturgeon (Acipenser oxyrinchus Current status of feeding stocks of the kaluga sturgeon Huso desotoi Mitchill, 1815) in the Suwannee River, Florida: A 19-year dauricus Georgi, 1775, and Amur sturgeon Acipenser schrenckii evaluation Brandt, 1889, in Russian waters 1441 V. Wishingrad, J.R. Sloychuk, M.C.O. Ferrari & D.P. Chivers 1319 P. Bates, J. Chandler, K. Lepla & K. Steinhorst Alarm cues in Lake Sturgeon Acipenser fulvescens Rafinesque, Using mark-recapture data in an individual-based model to 1817: potential implications for life-skills training evaluate length-at-age differences between two Snake River 1445 H. Du, Q.-W. Wei, X. Xie, L.-L. Shi, J.-M. Wu, X.-M. Qiao & white sturgeon (Acipenser transmontanus Richardson, 1836) Z.G. Liu populations in Idaho, USA Improving swimming capacity of juvenile Dabry's sturgeon, 1328 T.C. Pratt, W.M. Gardner, J. Pearce, S. Greenwood & S.C. Chong (Acipenser dabryanus Duméril, 1869) in current-enriched Identification of a robust Lake Sturgeon (Acipenser fulvescens culture tanks Rafinesque, 1917) population in Goulais Bay, Lake Superior jai_30_6_Content_ps 20-11-2014 12:34 Page 3

1451 C.A. McDougall, D.J. Pisiak, C.C. Barth, M.A. Blanchard, 1565 J. Genz, C.A. McDougall, D. Burnett, L. Arcinas, S. Khetoo & D.S. MacDonell & D. Macdonald W.G. Anderson Relative recruitment success of stocked age-1 vs age-0 lake Induced spawning of wild-caught adult lake sturgeon: sturgeon (Acipenser fulvescens Rafinesque, 1817) in the Nelson assessment of hormonal and stress responses, gamete quality, River, northern Canada and survival 1461 D.W. Baker, D.S.O. Mcadam, M. Boucher, K.T. Huynh & 1578 B. Falahatkar, S.R. Akhavan, S. Poursaeid & E. Hasirbaf C.J. Brauner Use of sex steroid profiles and hematological indices to identify Swimming performance and larval quality are altered by rearing perinucleolus and migratory gonadal stages of captive Siberian substrate at early life phases in white sturgeon, Acipenser sturgeon Acipenser baerii (Brandt, 1869) females transmontanus (Richardson, 1836) 1585 X.-R. Huang, P. Zhuang, L.-Z. Zhang, J.-Y. Liu, T. Zhang, Human Impact and Mitigation Measures G.-P. Feng & F. Zhao Effect of cryopreservation on the enzyme activity of Russian 1473 J. Gessner, S. Zahn, I. Jaric & C. Wolter sturgeon (Acipenser gueldenstaedtii Brandt & Ratzeburg, Estimating the potential for habitat restoration and connectivity 1833) semen effects on European sturgeon (Acipenser sturio L. 1758) population rehabilitation in a lowland river – the Havel, Germany Nutrition 1483 H. Zhang, C.Y. Wang, D.G. Yang, H. Du, Q.W. Wei & M. Kang 1590 Y. Chai, F.X. Tan, L.X. Li & Q.W. Wei Spatial distribution and habitat choice of adult Chinese sturgeon Effects of delayed initial feeding on growth and survival of (Acipenser sinensis Gray, 1835) downstream of Gezhouba Dam, Chinese sturgeon (Acipenser sinensis Gray, 1835) larvae Yangtze River, China 1596 Y.J. Zhu, X.M. Li & D.G. Yang 1492 G.L. Hempen, T.M. Keevin, M.T. Rodgers & B.M. Schneider Food preference of paddlefish, Polyodon spathula (Walbaum, Mechanical rock grinding in the Mississippi River: anthropogenic 1792), in polyculture with bighead carp Aristichthys nobilis noise production and implications for the federally endangered (Richardson, 1845) in non-fed ponds pallid sturgeon, Scaphirhynchus albus (Forbes & Richardson, 1602 F. Huang, M. Jiang, H. Wen, W. Liu, C.G. Yang, F. Wu, J. Tian & 1905) Q.W. Wie 1497 E.E. Little, R.D. Calfee & G. Linder Effects of different dietary lipid sources on growth performance, Toxicity of smelter slag-contaminated sediments from Upper tissue fatty acid composition and serum lipid indices of juvenile Lake Roosevelt and associated metals to early life stage White Amur sturgeon, Acipenser schrenckii Brandt, 1869 Sturgeon (Acipenser transmontanus Richardson, 1836) 1609 W. Liu, H. Wen, Q.W. Wei, J. Zhou, M. Jiang, F. Wu, Y. Shi, 1508 J. Lyons & J.S. Stewart C.G. Yang & J. Tian Predicted effects of future climate warming on thermal habitat Effects of dietary dextrin on growth, feed utilization and body suitability for Lake Sturgeon (Acipenser fulvescens, Rafinesque, composition of juvenile Chinese sturgeon, Acipenser sinensis 1817) in rivers in Wisconsin, USA Gray, 1835 1514 J.L. McDermid, S. Nienhuis, M. Al-Shamlih, T.J. Haxton & 1613 M. Jiang, W. Liu, H. Wen, F. Huang, F. Wu, J. Tian, C.G. Yang, C.C. Wilson W.M. Wang & Q.W. Wei Evaluating the genetic consequences of river fragmentation in Effect of dietary carbohydrate sources on the growth lake sturgeon (Acipenser fulvescens Rafinesque, 1817) performance, feed utilization, muscle composition, postprandial populations glycemic and glycogen response of Amur sturgeon, Acipenser schrenckii Brandt, 1869 1524 A.B. Welsh & J.R. Jackson The effect of multi-year vs single-year stocking on lake sturgeon 1620 F. Wu, W. Liu, Q.-W. Wei, H. Wen, M. Jiang, C.-G. Yang & J. Tian (Acipenser fulvescens Rafinesque, 1817) genetic diversity Effects of dietary lipid sources on growth performance, carcass composition, and blood parameters of juvenile Chinese sturgeon 1531 R.N. Hupfeld & Q.E. Phelps (Acipenser sinensis Gray, 1835) Comparing commercial and recreational harvest characteristics of paddlefish Polyodon spathula (Walbaum, 1792) in the Middle 1626 C.-G. Yang, H. Wen, M. Jiang, W. Liu, F. Wu, J. Tian & Q.-W. Wei Mississippi River Effect of dietary conjugated linoleic acid supplementation on the growth, lipid metabolism, and plasma lipid levels of juvenile Aquaculture/Production (meat and caviar) Amur sturgeon (Acipenser schrenckii Brandt, 1869) 1536 P. Bronzi & H. Rosenthal 1632 M.A. YazdaniSadati, M.H. SayedHassani, M. Pourkazemi, Present and future sturgeon and caviar production and M. Shakourian & M. Pourasadi marketing: A global market overview Influence of different levels of dietary choline on growth rate, 1547 L. Shen, Y. Shi, Y.C. Zou, X.H. Zhou & Q.W. Wei body composition, Hematological indices and liver lipid of Sturgeon Aquaculture in China: status, challenge and proposals juvenile Siberian sturgeon Acipenser baerii Brandt, 1869 based on nation-wide surveys of 2010–2012 1637 M. Mohseni, M. Pourkazemi & R.O.A. Ozório 1552 D. Memis Dietary lipid to carbohydrate ratio in beluga, Huso huso A short history of sturgeon caviar production in Turkey (Linnaeus, 1758), fed two L-carnitine levels Reproduction and Technology 1557 S. Hagihara, R. Yamashita, S. Yamamoto, M. Ishihara, T. Abe, S. Ijiri & S. Adachi Identification of genes involved in gonadal sex differentiation and the dimorphic expression pattern in undifferentiated gonads of Russian sturgeon Acipenser gueldenstaedtii Brandt & Ratzeburg, 1833