Modeling the influence of hypoxia on the potential habitat of Atlantic sturgeon Acipenser oxyrinchus: a comparison of two methods
Identifieur interne : 000414 ( Main/Merge ); précédent : 000413; suivant : 000415Modeling the influence of hypoxia on the potential habitat of Atlantic sturgeon Acipenser oxyrinchus: a comparison of two methods
Auteurs : Adam J. Schlenger [États-Unis] ; Elizabeth W. North [États-Unis] ; Zachary Schlag [États-Unis] ; YUN LI [États-Unis] ; David H. Secor [États-Unis] ; Katharine A. Smith [États-Unis] ; Edwin J. Niklitschek [Chili]Source :
- Marine ecology. Progress series : (Halstenbek) [ 0171-8630 ] ; 2013.
Descripteurs français
- Pascal (Inist)
- Wicri :
- topic : Habitat, Oxygène, Milieu marin.
English descriptors
- KwdEn :
Abstract
Management of marine and estuarine fish and shellfish would benefit from a numerical approach that quantifies the impacts of climate variability and eutrophication. We present a proof-of-concept habitat volume model that incorporates predictions from a 3-dimensional biophysical model. Using temperature, salinity, and dissolved oxygen, habitat volumes were calculated based on threshold physiological tolerances (fixed criteria) and potential growth (bioenergetics) for Atlantic sturgeon Acipenser oxyrinchus. Simulations from a coupled oxygen and hydrodynamic model of the Chesapeake Bay, USA, were used to estimate habitat volumes of juvenile sturgeon and assess the sensitivity of habitat to environmental factors. In winter, salinity controlled the required (needed for survival) and optimal (needed for highest growth) habitat. Temperature and salinity defined spring and autumn optimal habitat, and a combination of salinity, temperature and dissolved oxygen influenced habitat volumes during summer. Although average summertime oxygen limitation reduced the volumes of juvenile habitat by 3.3-28.0 %, the largest reductions in summertime habitat resulted from temperature limitation. The average difference in annual and seasonal volumes between fixed-criteria and bioenergetics methods was approximately 14 %, with similar trends over the annual cycle for most life stages and habitat types. We conclude that fixed-criteria habitat volume models would be suitable when bioenergetics information is not available. Both habitat volume models can be used to assess the impacts of climate change and eutrophication on the habitat of fish and shellfish in regions where hydrodynamic models exist and for species for which physiological tolerances are known.
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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en" level="a">Modeling the influence of hypoxia on the potential habitat of Atlantic sturgeon Acipenser oxyrinchus: a comparison of two methods</title><author><name sortKey="Schlenger, Adam J" sort="Schlenger, Adam J" uniqKey="Schlenger A" first="Adam J." last="Schlenger">Adam J. Schlenger</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>University of Maryland Center for Environmental Science, 2020 Horns Point Rd</s1><s2>Cambridge, Maryland 21613</s2><s3>USA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ></inist:fA14><country>États-Unis</country><wicri:noRegion>Cambridge, Maryland 21613</wicri:noRegion></affiliation></author><author><name sortKey="North, Elizabeth W" sort="North, Elizabeth W" uniqKey="North E" first="Elizabeth W." last="North">Elizabeth W. North</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>University of Maryland Center for Environmental Science, 2020 Horns Point Rd</s1><s2>Cambridge, Maryland 21613</s2><s3>USA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ></inist:fA14><country>États-Unis</country><wicri:noRegion>Cambridge, Maryland 21613</wicri:noRegion></affiliation></author><author><name sortKey="Schlag, Zachary" sort="Schlag, Zachary" uniqKey="Schlag Z" first="Zachary" last="Schlag">Zachary Schlag</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>University of Maryland Center for Environmental Science, 2020 Horns Point Rd</s1><s2>Cambridge, Maryland 21613</s2><s3>USA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ></inist:fA14><country>États-Unis</country><wicri:noRegion>Cambridge, Maryland 21613</wicri:noRegion></affiliation></author><author><name sortKey="Yun Li" sort="Yun Li" uniqKey="Yun Li" last="Yun Li">YUN LI</name><affiliation wicri:level="1"><inist:fA14 i1="05"><s1>NOAA/NMFS, Northeast Fishery Science Center, 166 Water Street</s1><s2>Woods Hole, Massachusetts 02543</s2><s3>USA</s3><sZ>4 aut.</sZ></inist:fA14><country>États-Unis</country><wicri:noRegion>Woods Hole, Massachusetts 02543</wicri:noRegion></affiliation></author><author><name sortKey="Secor, David H" sort="Secor, David H" uniqKey="Secor D" first="David H." last="Secor">David H. 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Schlenger</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>University of Maryland Center for Environmental Science, 2020 Horns Point Rd</s1><s2>Cambridge, Maryland 21613</s2><s3>USA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ></inist:fA14><country>États-Unis</country><wicri:noRegion>Cambridge, Maryland 21613</wicri:noRegion></affiliation></author><author><name sortKey="North, Elizabeth W" sort="North, Elizabeth W" uniqKey="North E" first="Elizabeth W." last="North">Elizabeth W. North</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>University of Maryland Center for Environmental Science, 2020 Horns Point Rd</s1><s2>Cambridge, Maryland 21613</s2><s3>USA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ></inist:fA14><country>États-Unis</country><wicri:noRegion>Cambridge, Maryland 21613</wicri:noRegion></affiliation></author><author><name sortKey="Schlag, Zachary" sort="Schlag, Zachary" uniqKey="Schlag Z" first="Zachary" last="Schlag">Zachary Schlag</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>University of Maryland Center for Environmental Science, 2020 Horns Point Rd</s1><s2>Cambridge, Maryland 21613</s2><s3>USA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ></inist:fA14><country>États-Unis</country><wicri:noRegion>Cambridge, Maryland 21613</wicri:noRegion></affiliation></author><author><name sortKey="Yun Li" sort="Yun Li" uniqKey="Yun Li" last="Yun Li">YUN LI</name><affiliation wicri:level="1"><inist:fA14 i1="05"><s1>NOAA/NMFS, Northeast Fishery Science Center, 166 Water Street</s1><s2>Woods Hole, Massachusetts 02543</s2><s3>USA</s3><sZ>4 aut.</sZ></inist:fA14><country>États-Unis</country><wicri:noRegion>Woods Hole, Massachusetts 02543</wicri:noRegion></affiliation></author><author><name sortKey="Secor, David H" sort="Secor, David H" uniqKey="Secor D" first="David H." last="Secor">David H. 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Smith</name><affiliation wicri:level="1"><inist:fA14 i1="03"><s1>Department of Oceanography, University of Hawaii at Manoa, 1000 Pope Rd</s1><s2>Honolulu, Hawaii 96822</s2><s3>USA</s3><sZ>6 aut.</sZ></inist:fA14><country>États-Unis</country><wicri:noRegion>Honolulu, Hawaii 96822</wicri:noRegion></affiliation></author><author><name sortKey="Niklitschek, Edwin J" sort="Niklitschek, Edwin J" uniqKey="Niklitschek E" first="Edwin J." last="Niklitschek">Edwin J. Niklitschek</name><affiliation wicri:level="1"><inist:fA14 i1="04"><s1>Universidad de Los Lagos, Centro i∼mar, Camino a Chinquihue Km. 6</s1><s2>Puerto Montt 5480000</s2><s3>CHL</s3><sZ>7 aut.</sZ></inist:fA14><country>Chili</country><wicri:noRegion>Puerto Montt 5480000</wicri:noRegion></affiliation></author></analytic><series><title level="j" type="main">Marine ecology. Progress series : (Halstenbek)</title><title level="j" type="abbreviated">Mar. ecol., Prog. ser. : (Halstenbek)</title><idno type="ISSN">0171-8630</idno><imprint><date when="2013">2013</date></imprint></series></biblStruct></sourceDesc><seriesStmt><title level="j" type="main">Marine ecology. Progress series : (Halstenbek)</title><title level="j" type="abbreviated">Mar. ecol., Prog. ser. : (Halstenbek)</title><idno type="ISSN">0171-8630</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Acipenser sturio</term><term>Habitat</term><term>Hypoxia</term><term>Marine environment</term><term>Method</term><term>Modeling</term><term>Models</term><term>Oxygen</term><term>Tolerance</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Modélisation</term><term>Hypoxie</term><term>Habitat</term><term>Méthode</term><term>Modèle</term><term>Tolérance</term><term>Oxygène</term><term>Milieu marin</term><term>Acipenser sturio</term></keywords><keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Habitat</term><term>Oxygène</term><term>Milieu marin</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Management of marine and estuarine fish and shellfish would benefit from a numerical approach that quantifies the impacts of climate variability and eutrophication. We present a proof-of-concept habitat volume model that incorporates predictions from a 3-dimensional biophysical model. Using temperature, salinity, and dissolved oxygen, habitat volumes were calculated based on threshold physiological tolerances (fixed criteria) and potential growth (bioenergetics) for Atlantic sturgeon Acipenser oxyrinchus. Simulations from a coupled oxygen and hydrodynamic model of the Chesapeake Bay, USA, were used to estimate habitat volumes of juvenile sturgeon and assess the sensitivity of habitat to environmental factors. In winter, salinity controlled the required (needed for survival) and optimal (needed for highest growth) habitat. Temperature and salinity defined spring and autumn optimal habitat, and a combination of salinity, temperature and dissolved oxygen influenced habitat volumes during summer. Although average summertime oxygen limitation reduced the volumes of juvenile habitat by 3.3-28.0 %, the largest reductions in summertime habitat resulted from temperature limitation. The average difference in annual and seasonal volumes between fixed-criteria and bioenergetics methods was approximately 14 %, with similar trends over the annual cycle for most life stages and habitat types. We conclude that fixed-criteria habitat volume models would be suitable when bioenergetics information is not available. Both habitat volume models can be used to assess the impacts of climate change and eutrophication on the habitat of fish and shellfish in regions where hydrodynamic models exist and for species for which physiological tolerances are known.</div></front></TEI><affiliations><list><country><li>Chili</li><li>États-Unis</li></country><region><li>Maryland</li></region><settlement><li>College Park (Maryland)</li></settlement><orgName><li>Université du Maryland</li></orgName></list><tree><country name="États-Unis"><noRegion><name sortKey="Schlenger, Adam J" sort="Schlenger, Adam J" uniqKey="Schlenger A" first="Adam J." last="Schlenger">Adam J. Schlenger</name></noRegion><name sortKey="North, Elizabeth W" sort="North, Elizabeth W" uniqKey="North E" first="Elizabeth W." last="North">Elizabeth W. North</name><name sortKey="Schlag, Zachary" sort="Schlag, Zachary" uniqKey="Schlag Z" first="Zachary" last="Schlag">Zachary Schlag</name><name sortKey="Secor, David H" sort="Secor, David H" uniqKey="Secor D" first="David H." last="Secor">David H. Secor</name><name sortKey="Smith, Katharine A" sort="Smith, Katharine A" uniqKey="Smith K" first="Katharine A." last="Smith">Katharine A. Smith</name><name sortKey="Yun Li" sort="Yun Li" uniqKey="Yun Li" last="Yun Li">YUN LI</name></country><country name="Chili"><noRegion><name sortKey="Niklitschek, Edwin J" sort="Niklitschek, Edwin J" uniqKey="Niklitschek E" first="Edwin J." last="Niklitschek">Edwin J. Niklitschek</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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