Ontogenetic behavior and migration of Atlantic sturgeon, Acipenser oxyrinchus oxyrinchus, and shortnose sturgeon, A. brevirostrum, with notes on social behavior
Identifieur interne : 001449 ( Main/Merge ); précédent : 001448; suivant : 001450Ontogenetic behavior and migration of Atlantic sturgeon, Acipenser oxyrinchus oxyrinchus, and shortnose sturgeon, A. brevirostrum, with notes on social behavior
Auteurs : Boyd Kynard [États-Unis] ; Martin Horgan [États-Unis]Source :
- Environmental biology of fishes [ 0378-1909 ] ; 2002.
Descripteurs français
- Pascal (Inist)
- Wicri :
- topic : Comportement social.
English descriptors
- KwdEn :
Abstract
Synopsis Ontogenetic behavior of Hudson River Atlantic sturgeon and Connecticut River shortnose sturgeon early life intervals were similar during laboratory observations. After hatching, free embryos were photonegative and sought cover. When embryos developed into larvae, fish left cover, were photopositive, and initiated downstream migration. Free embryos may remain at the spawning site instead of migrating downstream because the risk of predation at spawning sites is low. The two species are sympatric, but not closely related, so the similarities in innate behaviors suggest common adaptations, not phylogenetic relationship. Atlantic sturgeon migrated downstream for 12 days (peak, first 6 days), shortnose sturgeon migrated for 3 days, and year-0 juveniles of both species did not resume downstream migration. Short or long migrations of larvae may reflect different styles related to the total migratory distance from spawning sites to juvenile rearing areas. Atlantic sturgeon need to move a short distance to reach rearing areas and they had a long 1-step migration of 6-12 days. In contrast, shortnose sturgeon need to move a long distance to reach all rearing areas. This may be accomplished by a 2-step migration, of which the brief migration of larvae is only the first step. Early migrant Atlantic sturgeon were nocturnal, while late migrants were diurnal, and shortnose sturgeon were diurnal. These diel differences may also be adaptations for long (Atlantic sturgeon) or short (shortnose sturgeon) migrations. Cultured shortnose sturgeon, and possibly Atlantic sturgeon, have a dominance hierarchy with large fish dominant when competing for limited foraging space. Social behavior may be more important in the life history of wild sturgeons than is generally recognized.
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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en" level="a">Ontogenetic behavior and migration of Atlantic sturgeon, Acipenser oxyrinchus oxyrinchus, and shortnose sturgeon, A. brevirostrum, with notes on social behavior</title><author><name sortKey="Kynard, Boyd" sort="Kynard, Boyd" uniqKey="Kynard B" first="Boyd" last="Kynard">Boyd Kynard</name><affiliation wicri:level="2"><inist:fA14 i1="01"><s1>U.S. Geological Survey, Biological Resources Division, S.O. Conte Anadromous Fish Research Center, P.O. Box 796</s1><s2>Turners Falls, MA 01376</s2><s3>USA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ></inist:fA14><country>États-Unis</country><placeName><region type="state">Massachusetts</region></placeName></affiliation><affiliation wicri:level="4"><inist:fA14 i1="02"><s1>Graduate Program in Organismic and Evolutionary Biology, University of Massachusetts</s1><s2>Amherst, MA 01003</s2><s3>USA</s3><sZ>1 aut.</sZ></inist:fA14><country>États-Unis</country><placeName><region type="state">Massachusetts</region><settlement type="city">Amherst (Massachusetts)</settlement></placeName><orgName type="university">Université du Massachusetts</orgName></affiliation></author><author><name sortKey="Horgan, Martin" sort="Horgan, Martin" uniqKey="Horgan M" first="Martin" last="Horgan">Martin Horgan</name><affiliation wicri:level="2"><inist:fA14 i1="01"><s1>U.S. Geological Survey, Biological Resources Division, S.O. Conte Anadromous Fish Research Center, P.O. Box 796</s1><s2>Turners Falls, MA 01376</s2><s3>USA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ></inist:fA14><country>États-Unis</country><placeName><region type="state">Massachusetts</region></placeName></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">INIST</idno><idno type="inist">02-0289691</idno><date when="2002">2002</date><idno type="stanalyst">PASCAL 02-0289691 INIST</idno><idno type="RBID">Pascal:02-0289691</idno><idno type="wicri:Area/PascalFrancis/Corpus">000320</idno><idno type="wicri:Area/PascalFrancis/Curation">000056</idno><idno type="wicri:Area/PascalFrancis/Checkpoint">000306</idno><idno type="wicri:explorRef" wicri:stream="PascalFrancis" wicri:step="Checkpoint">000306</idno><idno type="wicri:doubleKey">0378-1909:2002:Kynard B:ontogenetic:behavior:and</idno><idno type="wicri:Area/Main/Merge">001449</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a">Ontogenetic behavior and migration of Atlantic sturgeon, Acipenser oxyrinchus oxyrinchus, and shortnose sturgeon, A. brevirostrum, with notes on social behavior</title><author><name sortKey="Kynard, Boyd" sort="Kynard, Boyd" uniqKey="Kynard B" first="Boyd" last="Kynard">Boyd Kynard</name><affiliation wicri:level="2"><inist:fA14 i1="01"><s1>U.S. Geological Survey, Biological Resources Division, S.O. Conte Anadromous Fish Research Center, P.O. Box 796</s1><s2>Turners Falls, MA 01376</s2><s3>USA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ></inist:fA14><country>États-Unis</country><placeName><region type="state">Massachusetts</region></placeName></affiliation><affiliation wicri:level="4"><inist:fA14 i1="02"><s1>Graduate Program in Organismic and Evolutionary Biology, University of Massachusetts</s1><s2>Amherst, MA 01003</s2><s3>USA</s3><sZ>1 aut.</sZ></inist:fA14><country>États-Unis</country><placeName><region type="state">Massachusetts</region><settlement type="city">Amherst (Massachusetts)</settlement></placeName><orgName type="university">Université du Massachusetts</orgName></affiliation></author><author><name sortKey="Horgan, Martin" sort="Horgan, Martin" uniqKey="Horgan M" first="Martin" last="Horgan">Martin Horgan</name><affiliation wicri:level="2"><inist:fA14 i1="01"><s1>U.S. Geological Survey, Biological Resources Division, S.O. Conte Anadromous Fish Research Center, P.O. Box 796</s1><s2>Turners Falls, MA 01376</s2><s3>USA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ></inist:fA14><country>États-Unis</country><placeName><region type="state">Massachusetts</region></placeName></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="2002">2002</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>Adaptation</term><term>Animal migration</term><term>Development</term><term>Dominance</term><term>Experimental study</term><term>Foraging behavior</term><term>Habitat selection</term><term>Interspecific comparison</term><term>Intraspecific competition</term><term>Larva</term><term>Social behavior</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Comparaison interspécifique</term><term>Comportement approvisionnement</term><term>Comportement social</term><term>Migration animale</term><term>Choix habitat</term><term>Compétition intraspécifique</term><term>Dominance</term><term>Développement</term><term>Larve</term><term>Adaptation</term><term>Etude expérimentale</term><term>Acipenser oxyrinchus oxyrinchus</term><term>Acipenser brevirostrum</term><term>Rivière Connecticut</term></keywords><keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Comportement social</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Synopsis Ontogenetic behavior of Hudson River Atlantic sturgeon and Connecticut River shortnose sturgeon early life intervals were similar during laboratory observations. After hatching, free embryos were photonegative and sought cover. When embryos developed into larvae, fish left cover, were photopositive, and initiated downstream migration. Free embryos may remain at the spawning site instead of migrating downstream because the risk of predation at spawning sites is low. The two species are sympatric, but not closely related, so the similarities in innate behaviors suggest common adaptations, not phylogenetic relationship. Atlantic sturgeon migrated downstream for 12 days (peak, first 6 days), shortnose sturgeon migrated for 3 days, and year-0 juveniles of both species did not resume downstream migration. Short or long migrations of larvae may reflect different styles related to the total migratory distance from spawning sites to juvenile rearing areas. Atlantic sturgeon need to move a short distance to reach rearing areas and they had a long 1-step migration of 6-12 days. In contrast, shortnose sturgeon need to move a long distance to reach all rearing areas. This may be accomplished by a 2-step migration, of which the brief migration of larvae is only the first step. Early migrant Atlantic sturgeon were nocturnal, while late migrants were diurnal, and shortnose sturgeon were diurnal. These diel differences may also be adaptations for long (Atlantic sturgeon) or short (shortnose sturgeon) migrations. Cultured shortnose sturgeon, and possibly Atlantic sturgeon, have a dominance hierarchy with large fish dominant when competing for limited foraging space. Social behavior may be more important in the life history of wild sturgeons than is generally recognized.</div></front></TEI><affiliations><list><country><li>États-Unis</li></country><region><li>Massachusetts</li></region><settlement><li>Amherst (Massachusetts)</li></settlement><orgName><li>Université du Massachusetts</li></orgName></list><tree><country name="États-Unis"><region name="Massachusetts"><name sortKey="Kynard, Boyd" sort="Kynard, Boyd" uniqKey="Kynard B" first="Boyd" last="Kynard">Boyd Kynard</name></region><name sortKey="Horgan, Martin" sort="Horgan, Martin" uniqKey="Horgan M" first="Martin" last="Horgan">Martin Horgan</name><name sortKey="Kynard, Boyd" sort="Kynard, Boyd" uniqKey="Kynard B" first="Boyd" last="Kynard">Boyd Kynard</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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