Ontogenetic behavior and migration of kaluga, Huso dauricus
Identifieur interne : 000034 ( PascalFrancis/Corpus ); précédent : 000033; suivant : 000035Ontogenetic behavior and migration of kaluga, Huso dauricus
Auteurs : YANHUA LI ; Boyd Kynard ; QIWEI WEI ; HUI ZHANG ; HAO DU ; QIANKUN LISource :
- Environmental biology of fishes [ 0378-1909 ] ; 2013.
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English descriptors
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Abstract
We conducted laboratory experiments with early life stages of kaluga sturgeon, Huso dauricus, from the middle reach of the Amur River to quantify ontogenetic behavior and compare their behavior with similar laboratory data collected previously on young kaluga from the Amur River. Our hatchling free embryos initiated an intense downstream migration that peaked on day 1, and continued strongly to day 3, decreased strikingly during days 4-6, and ceased on day 7 (8-day migration). Migrants preferred a bright habitat (illuminated and white bottom), open habitat, and swam-up far above the bottom (daily median distance, 3.5 m). On days 21-22, larvae initiated a second downstream migration of similar intensity (four fish passes per 5 min), with a peak at 34-35 days. Juveniles continued a slow intensity migration (one fish pass per 5 min) until day 66, indicating a long-duration migration style by early life stages that would carry them far downstream from a spawning site. Free embryos, larvae and early-juveniles also strongly preferred open habitat, suggesting a similar use of this habitat type by wild individuals of these three life stages. The behavior and migration of our kaluga early life stages were similar to the young kaluga studied previously, but the migration of the two groups was different in major ways. This result suggests there are at least two breeding stocks in the river, each with a slightly different early behavior. If correct, culture programs for stock enhancement must ensure breeding populations are not mixed, which would produce non-adapted early life stages. Genetics studies are needed to identify the kaluga populations in the Amur River.
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| NO : | PASCAL 13-0329689 INIST |
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| ET : | Ontogenetic behavior and migration of kaluga, Huso dauricus |
| AU : | YANHUA LI; KYNARD (Boyd); QIWEI WEI; HUI ZHANG; HAO DU; QIANKUN LI; NOAKES (David L. G.) |
| AF : | College of Fishery, Huazhong Agricultural University, No.1, Shizishan Street/Hongshan District, Wuhan 430070/Chine (1 aut., 3 aut., 6 aut.); BK-Riverfish, LLC, 28 Echo Hill Rd./Amherst, MA 01002/Etats-Unis (2 aut.); Key Laboratory of Freshwater Biodiversity Conservation, Ministry of Agriculture, Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, No.8, 1st Wudayuan Road, Donghu Hi-Tech Development Zone/Wuhan 430223/Chine (1 aut., 4 aut., 5 aut.); Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, No. 9 Shanshui East Road/Wuxi 214081/Chine (1 aut., 3 aut., 4 aut., 5 aut.); Fisheries and Wildlife Department and Oregon Hatchery Research Center, Oregon State University/Corvallis, OR 97331-3803/Etats-Unis (1 aut.) |
| DT : | Publication en série; Niveau analytique |
| SO : | Environmental biology of fishes; ISSN 0378-1909; Coden EBFID3; Pays-Bas; Da. 2013; Vol. 96; No. 10-11; Pp. 1269-1280; Bibl. 3/4 p. |
| LA : | Anglais |
| EA : | We conducted laboratory experiments with early life stages of kaluga sturgeon, Huso dauricus, from the middle reach of the Amur River to quantify ontogenetic behavior and compare their behavior with similar laboratory data collected previously on young kaluga from the Amur River. Our hatchling free embryos initiated an intense downstream migration that peaked on day 1, and continued strongly to day 3, decreased strikingly during days 4-6, and ceased on day 7 (8-day migration). Migrants preferred a bright habitat (illuminated and white bottom), open habitat, and swam-up far above the bottom (daily median distance, 3.5 m). On days 21-22, larvae initiated a second downstream migration of similar intensity (four fish passes per 5 min), with a peak at 34-35 days. Juveniles continued a slow intensity migration (one fish pass per 5 min) until day 66, indicating a long-duration migration style by early life stages that would carry them far downstream from a spawning site. Free embryos, larvae and early-juveniles also strongly preferred open habitat, suggesting a similar use of this habitat type by wild individuals of these three life stages. The behavior and migration of our kaluga early life stages were similar to the young kaluga studied previously, but the migration of the two groups was different in major ways. This result suggests there are at least two breeding stocks in the river, each with a slightly different early behavior. If correct, culture programs for stock enhancement must ensure breeding populations are not mixed, which would produce non-adapted early life stages. Genetics studies are needed to identify the kaluga populations in the Amur River. |
| CC : | 002A14B02C2A; 002A15B |
| FD : | Ontogenèse comportement; Migration; Embryon; Larve; Pisces; Huso; Acipenser |
| FG : | Vertebrata; Acipenseridae |
| ED : | Behavioral ontogeny; Migration; Embryo; Larva; Pisces |
| EG : | Vertebrata |
| SD : | Ontogénesis conducta; Migración; Embrión; Larva; Pisces |
| LO : | INIST-17564.354000505196860090 |
| ID : | 13-0329689 |
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aut.</sZ></inist:fA14></affiliation></author><author><name sortKey="Hui Zhang" sort="Hui Zhang" uniqKey="Hui Zhang" last="Hui Zhang">HUI ZHANG</name><affiliation><inist:fA14 i1="03"><s1>Key Laboratory of Freshwater Biodiversity Conservation, Ministry of Agriculture, Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, No.8, 1st Wudayuan Road, Donghu Hi-Tech Development Zone</s1><s2>Wuhan 430223</s2><s3>CHN</s3><sZ>1 aut.</sZ><sZ>4 aut.</sZ><sZ>5 aut.</sZ></inist:fA14></affiliation><affiliation><inist:fA14 i1="04"><s1>Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, No. 9 Shanshui East Road</s1><s2>Wuxi 214081</s2><s3>CHN</s3><sZ>1 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ><sZ>5 aut.</sZ></inist:fA14></affiliation></author><author><name sortKey="Hao Du" sort="Hao Du" uniqKey="Hao Du" last="Hao Du">HAO DU</name><affiliation><inist:fA14 i1="03"><s1>Key Laboratory of Freshwater Biodiversity Conservation, Ministry of Agriculture, Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, No.8, 1st Wudayuan Road, Donghu Hi-Tech Development Zone</s1><s2>Wuhan 430223</s2><s3>CHN</s3><sZ>1 aut.</sZ><sZ>4 aut.</sZ><sZ>5 aut.</sZ></inist:fA14></affiliation><affiliation><inist:fA14 i1="04"><s1>Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, No. 9 Shanshui East Road</s1><s2>Wuxi 214081</s2><s3>CHN</s3><sZ>1 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ><sZ>5 aut.</sZ></inist:fA14></affiliation></author><author><name sortKey="Qiankun Li" sort="Qiankun Li" uniqKey="Qiankun Li" last="Qiankun Li">QIANKUN LI</name><affiliation><inist:fA14 i1="01"><s1>College of Fishery, Huazhong Agricultural University, No.1, Shizishan Street</s1><s2>Hongshan District, Wuhan 430070</s2><s3>CHN</s3><sZ>1 aut.</sZ><sZ>3 aut.</sZ><sZ>6 aut.</sZ></inist:fA14></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">INIST</idno><idno type="inist">13-0329689</idno><date when="2013">2013</date><idno type="stanalyst">PASCAL 13-0329689 INIST</idno><idno type="RBID">Pascal:13-0329689</idno><idno type="wicri:Area/PascalFrancis/Corpus">000034</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a">Ontogenetic behavior and migration of kaluga, Huso dauricus</title><author><name sortKey="Yanhua Li" sort="Yanhua Li" uniqKey="Yanhua Li" last="Yanhua Li">YANHUA LI</name><affiliation><inist:fA14 i1="01"><s1>College of Fishery, Huazhong Agricultural University, No.1, Shizishan Street</s1><s2>Hongshan District, Wuhan 430070</s2><s3>CHN</s3><sZ>1 aut.</sZ><sZ>3 aut.</sZ><sZ>6 aut.</sZ></inist:fA14></affiliation><affiliation><inist:fA14 i1="03"><s1>Key Laboratory of Freshwater Biodiversity Conservation, Ministry of Agriculture, Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, No.8, 1st Wudayuan Road, Donghu Hi-Tech Development Zone</s1><s2>Wuhan 430223</s2><s3>CHN</s3><sZ>1 aut.</sZ><sZ>4 aut.</sZ><sZ>5 aut.</sZ></inist:fA14></affiliation><affiliation><inist:fA14 i1="04"><s1>Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, No. 9 Shanshui East Road</s1><s2>Wuxi 214081</s2><s3>CHN</s3><sZ>1 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ><sZ>5 aut.</sZ></inist:fA14></affiliation></author><author><name sortKey="Kynard, Boyd" sort="Kynard, Boyd" uniqKey="Kynard B" first="Boyd" last="Kynard">Boyd Kynard</name><affiliation><inist:fA14 i1="02"><s1>BK-Riverfish, LLC, 28 Echo Hill Rd.</s1><s2>Amherst, MA 01002</s2><s3>USA</s3><sZ>2 aut.</sZ></inist:fA14></affiliation></author><author><name sortKey="Qiwei Wei" sort="Qiwei Wei" uniqKey="Qiwei Wei" last="Qiwei Wei">QIWEI WEI</name><affiliation><inist:fA14 i1="01"><s1>College of Fishery, Huazhong Agricultural University, No.1, Shizishan Street</s1><s2>Hongshan District, Wuhan 430070</s2><s3>CHN</s3><sZ>1 aut.</sZ><sZ>3 aut.</sZ><sZ>6 aut.</sZ></inist:fA14></affiliation><affiliation><inist:fA14 i1="04"><s1>Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, No. 9 Shanshui East Road</s1><s2>Wuxi 214081</s2><s3>CHN</s3><sZ>1 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ><sZ>5 aut.</sZ></inist:fA14></affiliation></author><author><name sortKey="Hui Zhang" sort="Hui Zhang" uniqKey="Hui Zhang" last="Hui Zhang">HUI ZHANG</name><affiliation><inist:fA14 i1="03"><s1>Key Laboratory of Freshwater Biodiversity Conservation, Ministry of Agriculture, Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, No.8, 1st Wudayuan Road, Donghu Hi-Tech Development Zone</s1><s2>Wuhan 430223</s2><s3>CHN</s3><sZ>1 aut.</sZ><sZ>4 aut.</sZ><sZ>5 aut.</sZ></inist:fA14></affiliation><affiliation><inist:fA14 i1="04"><s1>Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, No. 9 Shanshui East Road</s1><s2>Wuxi 214081</s2><s3>CHN</s3><sZ>1 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ><sZ>5 aut.</sZ></inist:fA14></affiliation></author><author><name sortKey="Hao Du" sort="Hao Du" uniqKey="Hao Du" last="Hao Du">HAO DU</name><affiliation><inist:fA14 i1="03"><s1>Key Laboratory of Freshwater Biodiversity Conservation, Ministry of Agriculture, Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, No.8, 1st Wudayuan Road, Donghu Hi-Tech Development Zone</s1><s2>Wuhan 430223</s2><s3>CHN</s3><sZ>1 aut.</sZ><sZ>4 aut.</sZ><sZ>5 aut.</sZ></inist:fA14></affiliation><affiliation><inist:fA14 i1="04"><s1>Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, No. 9 Shanshui East Road</s1><s2>Wuxi 214081</s2><s3>CHN</s3><sZ>1 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ><sZ>5 aut.</sZ></inist:fA14></affiliation></author><author><name sortKey="Qiankun Li" sort="Qiankun Li" uniqKey="Qiankun Li" last="Qiankun Li">QIANKUN LI</name><affiliation><inist:fA14 i1="01"><s1>College of Fishery, Huazhong Agricultural University, No.1, Shizishan Street</s1><s2>Hongshan District, Wuhan 430070</s2><s3>CHN</s3><sZ>1 aut.</sZ><sZ>3 aut.</sZ><sZ>6 aut.</sZ></inist:fA14></affiliation></author></analytic><series><title level="j" type="main">Environmental biology of fishes</title><title level="j" type="abbreviated">Environ. biol. fishes</title><idno type="ISSN">0378-1909</idno><imprint><date when="2013">2013</date></imprint></series></biblStruct></sourceDesc><seriesStmt><title level="j" type="main">Environmental biology of fishes</title><title level="j" type="abbreviated">Environ. biol. fishes</title><idno type="ISSN">0378-1909</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Behavioral ontogeny</term><term>Embryo</term><term>Larva</term><term>Migration</term><term>Pisces</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Ontogenèse comportement</term><term>Migration</term><term>Embryon</term><term>Larve</term><term>Pisces</term><term>Huso</term><term>Acipenser</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">We conducted laboratory experiments with early life stages of kaluga sturgeon, Huso dauricus, from the middle reach of the Amur River to quantify ontogenetic behavior and compare their behavior with similar laboratory data collected previously on young kaluga from the Amur River. Our hatchling free embryos initiated an intense downstream migration that peaked on day 1, and continued strongly to day 3, decreased strikingly during days 4-6, and ceased on day 7 (8-day migration). Migrants preferred a bright habitat (illuminated and white bottom), open habitat, and swam-up far above the bottom (daily median distance, 3.5 m). On days 21-22, larvae initiated a second downstream migration of similar intensity (four fish passes per 5 min), with a peak at 34-35 days. Juveniles continued a slow intensity migration (one fish pass per 5 min) until day 66, indicating a long-duration migration style by early life stages that would carry them far downstream from a spawning site. Free embryos, larvae and early-juveniles also strongly preferred open habitat, suggesting a similar use of this habitat type by wild individuals of these three life stages. The behavior and migration of our kaluga early life stages were similar to the young kaluga studied previously, but the migration of the two groups was different in major ways. This result suggests there are at least two breeding stocks in the river, each with a slightly different early behavior. If correct, culture programs for stock enhancement must ensure breeding populations are not mixed, which would produce non-adapted early life stages. Genetics studies are needed to identify the kaluga populations in the Amur River.</div></front></TEI><inist><standard h6="B"><pA><fA01 i1="01" i2="1"><s0>0378-1909</s0></fA01><fA02 i1="01"><s0>EBFID3</s0></fA02><fA03 i2="1"><s0>Environ. biol. fishes</s0></fA03><fA05><s2>96</s2></fA05><fA06><s2>10-11</s2></fA06><fA08 i1="01" i2="1" l="ENG"><s1>Ontogenetic behavior and migration of kaluga, Huso dauricus</s1></fA08><fA09 i1="01" i2="1" l="ENG"><s1>Threatened Fishes of the World</s1></fA09><fA11 i1="01" i2="1"><s1>YANHUA LI</s1></fA11><fA11 i1="02" i2="1"><s1>KYNARD (Boyd)</s1></fA11><fA11 i1="03" i2="1"><s1>QIWEI WEI</s1></fA11><fA11 i1="04" i2="1"><s1>HUI ZHANG</s1></fA11><fA11 i1="05" i2="1"><s1>HAO DU</s1></fA11><fA11 i1="06" i2="1"><s1>QIANKUN LI</s1></fA11><fA12 i1="01" i2="1"><s1>NOAKES (David L. G.)</s1><s9>ed.</s9></fA12><fA14 i1="01"><s1>College of Fishery, Huazhong Agricultural University, No.1, Shizishan Street</s1><s2>Hongshan District, Wuhan 430070</s2><s3>CHN</s3><sZ>1 aut.</sZ><sZ>3 aut.</sZ><sZ>6 aut.</sZ></fA14><fA14 i1="02"><s1>BK-Riverfish, LLC, 28 Echo Hill Rd.</s1><s2>Amherst, MA 01002</s2><s3>USA</s3><sZ>2 aut.</sZ></fA14><fA14 i1="03"><s1>Key Laboratory of Freshwater Biodiversity Conservation, Ministry of Agriculture, Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, No.8, 1st Wudayuan Road, Donghu Hi-Tech Development Zone</s1><s2>Wuhan 430223</s2><s3>CHN</s3><sZ>1 aut.</sZ><sZ>4 aut.</sZ><sZ>5 aut.</sZ></fA14><fA14 i1="04"><s1>Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, No. 9 Shanshui East Road</s1><s2>Wuxi 214081</s2><s3>CHN</s3><sZ>1 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ><sZ>5 aut.</sZ></fA14><fA15 i1="01"><s1>Fisheries and Wildlife Department and Oregon Hatchery Research Center, Oregon State University</s1><s2>Corvallis, OR 97331-3803</s2><s3>USA</s3><sZ>1 aut.</sZ></fA15><fA20><s1>1269-1280</s1></fA20><fA21><s1>2013</s1></fA21><fA23 i1="01"><s0>ENG</s0></fA23><fA43 i1="01"><s1>INIST</s1><s2>17564</s2><s5>354000505196860090</s5></fA43><fA44><s0>0000</s0><s1>© 2013 INIST-CNRS. All rights reserved.</s1></fA44><fA45><s0>3/4 p.</s0></fA45><fA47 i1="01" i2="1"><s0>13-0329689</s0></fA47><fA60><s1>P</s1></fA60><fA61><s0>A</s0></fA61><fA64 i1="01" i2="1"><s0>Environmental biology of fishes</s0></fA64><fA66 i1="01"><s0>NLD</s0></fA66><fC01 i1="01" l="ENG"><s0>We conducted laboratory experiments with early life stages of kaluga sturgeon, Huso dauricus, from the middle reach of the Amur River to quantify ontogenetic behavior and compare their behavior with similar laboratory data collected previously on young kaluga from the Amur River. Our hatchling free embryos initiated an intense downstream migration that peaked on day 1, and continued strongly to day 3, decreased strikingly during days 4-6, and ceased on day 7 (8-day migration). Migrants preferred a bright habitat (illuminated and white bottom), open habitat, and swam-up far above the bottom (daily median distance, 3.5 m). On days 21-22, larvae initiated a second downstream migration of similar intensity (four fish passes per 5 min), with a peak at 34-35 days. Juveniles continued a slow intensity migration (one fish pass per 5 min) until day 66, indicating a long-duration migration style by early life stages that would carry them far downstream from a spawning site. Free embryos, larvae and early-juveniles also strongly preferred open habitat, suggesting a similar use of this habitat type by wild individuals of these three life stages. The behavior and migration of our kaluga early life stages were similar to the young kaluga studied previously, but the migration of the two groups was different in major ways. This result suggests there are at least two breeding stocks in the river, each with a slightly different early behavior. If correct, culture programs for stock enhancement must ensure breeding populations are not mixed, which would produce non-adapted early life stages. Genetics studies are needed to identify the kaluga populations in the Amur River.</s0></fC01><fC02 i1="01" i2="X"><s0>002A14B02C2A</s0></fC02><fC02 i1="02" i2="X"><s0>002A15B</s0></fC02><fC03 i1="01" i2="X" l="FRE"><s0>Ontogenèse comportement</s0><s5>01</s5></fC03><fC03 i1="01" i2="X" l="ENG"><s0>Behavioral ontogeny</s0><s5>01</s5></fC03><fC03 i1="01" i2="X" l="SPA"><s0>Ontogénesis conducta</s0><s5>01</s5></fC03><fC03 i1="02" i2="X" l="FRE"><s0>Migration</s0><s5>02</s5></fC03><fC03 i1="02" i2="X" l="ENG"><s0>Migration</s0><s5>02</s5></fC03><fC03 i1="02" i2="X" l="SPA"><s0>Migración</s0><s5>02</s5></fC03><fC03 i1="03" i2="X" l="FRE"><s0>Embryon</s0><s5>03</s5></fC03><fC03 i1="03" i2="X" l="ENG"><s0>Embryo</s0><s5>03</s5></fC03><fC03 i1="03" i2="X" l="SPA"><s0>Embrión</s0><s5>03</s5></fC03><fC03 i1="04" i2="X" l="FRE"><s0>Larve</s0><s5>04</s5></fC03><fC03 i1="04" i2="X" l="ENG"><s0>Larva</s0><s5>04</s5></fC03><fC03 i1="04" i2="X" l="SPA"><s0>Larva</s0><s5>04</s5></fC03><fC03 i1="05" i2="X" l="FRE"><s0>Pisces</s0><s2>NS</s2><s5>05</s5></fC03><fC03 i1="05" i2="X" l="ENG"><s0>Pisces</s0><s2>NS</s2><s5>05</s5></fC03><fC03 i1="05" i2="X" l="SPA"><s0>Pisces</s0><s2>NS</s2><s5>05</s5></fC03><fC03 i1="06" i2="X" l="FRE"><s0>Huso</s0><s4>INC</s4><s5>64</s5></fC03><fC03 i1="07" i2="X" l="FRE"><s0>Acipenser</s0><s4>INC</s4><s5>65</s5></fC03><fC07 i1="01" i2="X" l="FRE"><s0>Vertebrata</s0><s2>NS</s2></fC07><fC07 i1="01" i2="X" l="ENG"><s0>Vertebrata</s0><s2>NS</s2></fC07><fC07 i1="01" i2="X" l="SPA"><s0>Vertebrata</s0><s2>NS</s2></fC07><fC07 i1="02" i2="X" l="FRE"><s0>Acipenseridae</s0><s4>INC</s4><s5>32</s5></fC07><fN21><s1>308</s1></fN21><fN44 i1="01"><s1>OTO</s1></fN44><fN82><s1>OTO</s1></fN82></pA></standard><server><NO>PASCAL 13-0329689 INIST</NO><ET>Ontogenetic behavior and migration of kaluga, Huso dauricus</ET><AU>YANHUA LI; KYNARD (Boyd); QIWEI WEI; HUI ZHANG; HAO DU; QIANKUN LI; NOAKES (David L. G.)</AU><AF>College of Fishery, Huazhong Agricultural University, No.1, Shizishan Street/Hongshan District, Wuhan 430070/Chine (1 aut., 3 aut., 6 aut.); BK-Riverfish, LLC, 28 Echo Hill Rd./Amherst, MA 01002/Etats-Unis (2 aut.); Key Laboratory of Freshwater Biodiversity Conservation, Ministry of Agriculture, Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, No.8, 1st Wudayuan Road, Donghu Hi-Tech Development Zone/Wuhan 430223/Chine (1 aut., 4 aut., 5 aut.); Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, No. 9 Shanshui East Road/Wuxi 214081/Chine (1 aut., 3 aut., 4 aut., 5 aut.); Fisheries and Wildlife Department and Oregon Hatchery Research Center, Oregon State University/Corvallis, OR 97331-3803/Etats-Unis (1 aut.)</AF><DT>Publication en série; Niveau analytique</DT><SO>Environmental biology of fishes; ISSN 0378-1909; Coden EBFID3; Pays-Bas; Da. 2013; Vol. 96; No. 10-11; Pp. 1269-1280; Bibl. 3/4 p.</SO><LA>Anglais</LA><EA>We conducted laboratory experiments with early life stages of kaluga sturgeon, Huso dauricus, from the middle reach of the Amur River to quantify ontogenetic behavior and compare their behavior with similar laboratory data collected previously on young kaluga from the Amur River. Our hatchling free embryos initiated an intense downstream migration that peaked on day 1, and continued strongly to day 3, decreased strikingly during days 4-6, and ceased on day 7 (8-day migration). Migrants preferred a bright habitat (illuminated and white bottom), open habitat, and swam-up far above the bottom (daily median distance, 3.5 m). On days 21-22, larvae initiated a second downstream migration of similar intensity (four fish passes per 5 min), with a peak at 34-35 days. Juveniles continued a slow intensity migration (one fish pass per 5 min) until day 66, indicating a long-duration migration style by early life stages that would carry them far downstream from a spawning site. Free embryos, larvae and early-juveniles also strongly preferred open habitat, suggesting a similar use of this habitat type by wild individuals of these three life stages. The behavior and migration of our kaluga early life stages were similar to the young kaluga studied previously, but the migration of the two groups was different in major ways. This result suggests there are at least two breeding stocks in the river, each with a slightly different early behavior. If correct, culture programs for stock enhancement must ensure breeding populations are not mixed, which would produce non-adapted early life stages. Genetics studies are needed to identify the kaluga populations in the Amur River.</EA><CC>002A14B02C2A; 002A15B</CC><FD>Ontogenèse comportement; Migration; Embryon; Larve; Pisces; Huso; Acipenser</FD><FG>Vertebrata; Acipenseridae</FG><ED>Behavioral ontogeny; Migration; Embryo; Larva; Pisces</ED><EG>Vertebrata</EG><SD>Ontogénesis conducta; Migración; Embrión; Larva; Pisces</SD><LO>INIST-17564.354000505196860090</LO><ID>13-0329689</ID></server></inist></record>Pour manipuler ce document sous Unix (Dilib)
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