Green sturgeon distribution in the Pacific Ocean estimated from modeled oceanographic features and migration behavior.
Identifieur interne : 000448 ( Ncbi/Checkpoint ); précédent : 000447; suivant : 000449Green sturgeon distribution in the Pacific Ocean estimated from modeled oceanographic features and migration behavior.
Auteurs : David D. Huff [États-Unis] ; Steven T. Lindley ; Brian K. Wells ; Fei ChaiSource :
- PloS one [ 1932-6203 ] ; 2012.
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Abstract
The green sturgeon (Acipenser medirostris), which is found in the eastern Pacific Ocean from Baja California to the Bering Sea, tends to be highly migratory, moving long distances among estuaries, spawning rivers, and distant coastal regions. Factors that determine the oceanic distribution of green sturgeon are unclear, but broad-scale physical conditions interacting with migration behavior may play an important role. We estimated the distribution of green sturgeon by modeling species-environment relationships using oceanographic and migration behavior covariates with maximum entropy modeling (MaxEnt) of species geographic distributions. The primary concentration of green sturgeon was estimated from approximately 41-51.5° N latitude in the coastal waters of Washington, Oregon, and Vancouver Island and in the vicinity of San Francisco and Monterey Bays from 36-37° N latitude. Unsuitably cold water temperatures in the far north and energetic efficiencies associated with prevailing water currents may provide the best explanation for the range-wide marine distribution of green sturgeon. Independent trawl records, fisheries observer records, and tagging studies corroborated our findings. However, our model also delineated patchily distributed habitat south of Monterey Bay, though there are few records of green sturgeon from this region. Green sturgeon are likely influenced by countervailing pressures governing their dispersal. They are behaviorally directed to revisit natal freshwater spawning rivers and persistent overwintering grounds in coastal marine habitats, yet they are likely physiologically bounded by abiotic and biotic environmental features. Impacts of human activities on green sturgeon or their habitat in coastal waters, such as bottom-disturbing trawl fisheries, may be minimized through marine spatial planning that makes use of high-quality species distribution information.
DOI: 10.1371/journal.pone.0045852
PubMed: 23029274
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Lindley</name></author><author><name sortKey="Wells, Brian K" sort="Wells, Brian K" uniqKey="Wells B" first="Brian K" last="Wells">Brian K. Wells</name></author><author><name sortKey="Chai, Fei" sort="Chai, Fei" uniqKey="Chai F" first="Fei" last="Chai">Fei Chai</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2012">2012</date><idno type="RBID">pubmed:23029274</idno><idno type="pmid">23029274</idno><idno type="doi">10.1371/journal.pone.0045852</idno><idno type="wicri:Area/PubMed/Corpus">000331</idno><idno type="wicri:explorRef" wicri:stream="PubMed" wicri:step="Corpus" wicri:corpus="PubMed">000331</idno><idno type="wicri:Area/PubMed/Curation">000331</idno><idno type="wicri:explorRef" wicri:stream="PubMed" wicri:step="Curation">000331</idno><idno type="wicri:Area/PubMed/Checkpoint">000331</idno><idno type="wicri:explorRef" wicri:stream="Checkpoint" wicri:step="PubMed">000331</idno><idno type="wicri:Area/Ncbi/Merge">000448</idno><idno type="wicri:Area/Ncbi/Curation">000448</idno><idno type="wicri:Area/Ncbi/Checkpoint">000448</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Green sturgeon distribution in the Pacific Ocean estimated from modeled oceanographic features and migration behavior.</title><author><name sortKey="Huff, David D" sort="Huff, David D" uniqKey="Huff D" first="David D" last="Huff">David D. Huff</name><affiliation wicri:level="2"><nlm:affiliation>Fisheries Ecology Division, Southwest Fisheries Science Center, National Oceanic and Atmospheric Administration, Santa Cruz, CA, USA. david.huff@noaa.gov</nlm:affiliation><country xml:lang="fr">États-Unis</country><wicri:regionArea>Fisheries Ecology Division, Southwest Fisheries Science Center, National Oceanic and Atmospheric Administration, Santa Cruz, CA</wicri:regionArea><placeName><region type="state">Californie</region></placeName></affiliation></author><author><name sortKey="Lindley, Steven T" sort="Lindley, Steven T" uniqKey="Lindley S" first="Steven T" last="Lindley">Steven T. Lindley</name></author><author><name sortKey="Wells, Brian K" sort="Wells, Brian K" uniqKey="Wells B" first="Brian K" last="Wells">Brian K. Wells</name></author><author><name sortKey="Chai, Fei" sort="Chai, Fei" uniqKey="Chai F" first="Fei" last="Chai">Fei Chai</name></author></analytic><series><title level="j">PloS one</title><idno type="eISSN">1932-6203</idno><imprint><date when="2012" type="published">2012</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Analysis of Variance</term><term>Animal Distribution</term><term>Animal Migration</term><term>Animals</term><term>Area Under Curve</term><term>Fishes</term><term>Models, Biological</term><term>Models, Statistical</term><term>Pacific Ocean</term><term>ROC Curve</term><term>Seasons</term></keywords><keywords scheme="MESH" type="geographic" xml:lang="en"><term>Pacific Ocean</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Analysis of Variance</term><term>Animal Distribution</term><term>Animal Migration</term><term>Animals</term><term>Area Under Curve</term><term>Fishes</term><term>Models, Biological</term><term>Models, Statistical</term><term>ROC Curve</term><term>Seasons</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">The green sturgeon (Acipenser medirostris), which is found in the eastern Pacific Ocean from Baja California to the Bering Sea, tends to be highly migratory, moving long distances among estuaries, spawning rivers, and distant coastal regions. Factors that determine the oceanic distribution of green sturgeon are unclear, but broad-scale physical conditions interacting with migration behavior may play an important role. We estimated the distribution of green sturgeon by modeling species-environment relationships using oceanographic and migration behavior covariates with maximum entropy modeling (MaxEnt) of species geographic distributions. The primary concentration of green sturgeon was estimated from approximately 41-51.5° N latitude in the coastal waters of Washington, Oregon, and Vancouver Island and in the vicinity of San Francisco and Monterey Bays from 36-37° N latitude. Unsuitably cold water temperatures in the far north and energetic efficiencies associated with prevailing water currents may provide the best explanation for the range-wide marine distribution of green sturgeon. Independent trawl records, fisheries observer records, and tagging studies corroborated our findings. However, our model also delineated patchily distributed habitat south of Monterey Bay, though there are few records of green sturgeon from this region. Green sturgeon are likely influenced by countervailing pressures governing their dispersal. They are behaviorally directed to revisit natal freshwater spawning rivers and persistent overwintering grounds in coastal marine habitats, yet they are likely physiologically bounded by abiotic and biotic environmental features. Impacts of human activities on green sturgeon or their habitat in coastal waters, such as bottom-disturbing trawl fisheries, may be minimized through marine spatial planning that makes use of high-quality species distribution information.</div></front></TEI><affiliations><list><country><li>États-Unis</li></country><region><li>Californie</li></region></list><tree><noCountry><name sortKey="Chai, Fei" sort="Chai, Fei" uniqKey="Chai F" first="Fei" last="Chai">Fei Chai</name><name sortKey="Lindley, Steven T" sort="Lindley, Steven T" uniqKey="Lindley S" first="Steven T" last="Lindley">Steven T. Lindley</name><name sortKey="Wells, Brian K" sort="Wells, Brian K" uniqKey="Wells B" first="Brian K" last="Wells">Brian K. Wells</name></noCountry><country name="États-Unis"><region name="Californie"><name sortKey="Huff, David D" sort="Huff, David D" uniqKey="Huff D" first="David D" last="Huff">David D. 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