Comparative demography of skates: life-history correlates of productivity and implications for management
Age-structured demographic models were constructed based on empirical estimates of longevity and maturity for five deepwater Bering Sea skates to investigate how observed differences in life history parameters affect population growth rates. Monte Carlo simulations were used to incorporate parameter...
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description | Age-structured demographic models were constructed based on empirical estimates of longevity and maturity for five deepwater Bering Sea skates to investigate how observed differences in life history parameters affect population growth rates. Monte Carlo simulations were used to incorporate parameter uncertainty. Estimated population growth rates ranged from 1.045 to 1.129 yr(-1) and were lower than those reported for other Alaskan skates and most chondrichthyans. Population growth rates of these and other high-latitude skates increased with relative reproductive lifespan, but displayed no significant relationship with body size or depth distribution, suggesting that assemblage shifts may be difficult to predict for data-poor taxa. Elasticity analyses indicated that juvenile and adult survival had greater per-unit effects on population growth rates than did egg-case survival or fecundity. Population growth rate was affected more by uncertainty in age at maturity than maximum age. The results of this study indicate that if skates are deemed to be a management concern, gear modifications or depth-specific effort controls may be effective. |
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Monte Carlo simulations were used to incorporate parameter uncertainty. Estimated population growth rates ranged from 1.045 to 1.129 yr(-1) and were lower than those reported for other Alaskan skates and most chondrichthyans. Population growth rates of these and other high-latitude skates increased with relative reproductive lifespan, but displayed no significant relationship with body size or depth distribution, suggesting that assemblage shifts may be difficult to predict for data-poor taxa. Elasticity analyses indicated that juvenile and adult survival had greater per-unit effects on population growth rates than did egg-case survival or fecundity. Population growth rate was affected more by uncertainty in age at maturity than maximum age. The results of this study indicate that if skates are deemed to be a management concern, gear modifications or depth-specific effort controls may be effective.</description><identifier>ISSN: 1932-6203</identifier><identifier>EISSN: 1932-6203</identifier><identifier>DOI: 10.1371/journal.pone.0065000</identifier><identifier>PMID: 23741442</identifier><language>eng</language><publisher>United States: Public Library of Science</publisher><subject>Age ; Algorithms ; Animals ; Bathyraja ; Biology ; Body size ; Commercial fishing ; Computer Simulation ; Data processing ; Demographics ; Demography ; Dipturus laevis ; Elasmobranchii ; Elasticity ; Empirical analysis ; Environment ; Estimates ; Fecundity ; Female ; Fish ; Fisheries ; Fishing ; Growth rate ; Laboratories ; Leucoraja erinacea ; Leucoraja ocellata ; Life history ; Life span ; Longevity ; Models, Statistical ; Monte Carlo Method ; Monte Carlo simulation ; Parameter estimation ; Parameter uncertainty ; Population Dynamics ; Population growth ; Population statistics ; Productivity ; Raja clavata ; Rajidae ; Sexual Maturation ; Skates (Fish) - growth & development ; Survival ; Sustainable fisheries ; Taxa ; Taxonomy ; Trends</subject><ispartof>PloS one, 2013-05, Vol.8 (5), p.e65000-e65000</ispartof><rights>2013 Barnett et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License: https://creativecommons.org/licenses/by/4.0/ (the “License”), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><rights>2013 Barnett et al 2013 Barnett et al</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c526t-14fa5d184f672e637a29f119146a334e7a2817f477585defd41c5864d2e3738c3</citedby><cites>FETCH-LOGICAL-c526t-14fa5d184f672e637a29f119146a334e7a2817f477585defd41c5864d2e3738c3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC3669027/pdf/$$EPDF$$P50$$Gpubmedcentral$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC3669027/$$EHTML$$P50$$Gpubmedcentral$$Hfree_for_read</linktohtml><link.rule.ids>230,314,723,776,780,860,881,2096,2915,23845,27901,27902,53766,53768,79343,79344</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/23741442$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><contributor>Stergiou, Konstantinos I.</contributor><creatorcontrib>Barnett, Lewis A K</creatorcontrib><creatorcontrib>Winton, Megan V</creatorcontrib><creatorcontrib>Ainsley, Shaara M</creatorcontrib><creatorcontrib>Cailliet, Gregor M</creatorcontrib><creatorcontrib>Ebert, David A</creatorcontrib><title>Comparative demography of skates: life-history correlates of productivity and implications for management</title><title>PloS one</title><addtitle>PLoS One</addtitle><description>Age-structured demographic models were constructed based on empirical estimates of longevity and maturity for five deepwater Bering Sea skates to investigate how observed differences in life history parameters affect population growth rates. Monte Carlo simulations were used to incorporate parameter uncertainty. Estimated population growth rates ranged from 1.045 to 1.129 yr(-1) and were lower than those reported for other Alaskan skates and most chondrichthyans. Population growth rates of these and other high-latitude skates increased with relative reproductive lifespan, but displayed no significant relationship with body size or depth distribution, suggesting that assemblage shifts may be difficult to predict for data-poor taxa. Elasticity analyses indicated that juvenile and adult survival had greater per-unit effects on population growth rates than did egg-case survival or fecundity. Population growth rate was affected more by uncertainty in age at maturity than maximum age. The results of this study indicate that if skates are deemed to be a management concern, gear modifications or depth-specific effort controls may be effective.</description><subject>Age</subject><subject>Algorithms</subject><subject>Animals</subject><subject>Bathyraja</subject><subject>Biology</subject><subject>Body size</subject><subject>Commercial fishing</subject><subject>Computer Simulation</subject><subject>Data processing</subject><subject>Demographics</subject><subject>Demography</subject><subject>Dipturus laevis</subject><subject>Elasmobranchii</subject><subject>Elasticity</subject><subject>Empirical analysis</subject><subject>Environment</subject><subject>Estimates</subject><subject>Fecundity</subject><subject>Female</subject><subject>Fish</subject><subject>Fisheries</subject><subject>Fishing</subject><subject>Growth rate</subject><subject>Laboratories</subject><subject>Leucoraja erinacea</subject><subject>Leucoraja ocellata</subject><subject>Life history</subject><subject>Life span</subject><subject>Longevity</subject><subject>Models, Statistical</subject><subject>Monte Carlo Method</subject><subject>Monte Carlo simulation</subject><subject>Parameter estimation</subject><subject>Parameter uncertainty</subject><subject>Population Dynamics</subject><subject>Population growth</subject><subject>Population statistics</subject><subject>Productivity</subject><subject>Raja clavata</subject><subject>Rajidae</subject><subject>Sexual Maturation</subject><subject>Skates (Fish) - 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Academic</collection><collection>PubMed Central (Full Participant titles)</collection><collection>DOAJ Directory of Open Access Journals</collection><jtitle>PloS one</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Barnett, Lewis A K</au><au>Winton, Megan V</au><au>Ainsley, Shaara M</au><au>Cailliet, Gregor M</au><au>Ebert, David A</au><au>Stergiou, Konstantinos I.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Comparative demography of skates: life-history correlates of productivity and implications for management</atitle><jtitle>PloS one</jtitle><addtitle>PLoS One</addtitle><date>2013-05-31</date><risdate>2013</risdate><volume>8</volume><issue>5</issue><spage>e65000</spage><epage>e65000</epage><pages>e65000-e65000</pages><issn>1932-6203</issn><eissn>1932-6203</eissn><abstract>Age-structured demographic models were constructed based on empirical estimates of longevity and maturity for five deepwater Bering Sea skates to investigate how observed differences in life history parameters affect population growth rates. Monte Carlo simulations were used to incorporate parameter uncertainty. Estimated population growth rates ranged from 1.045 to 1.129 yr(-1) and were lower than those reported for other Alaskan skates and most chondrichthyans. Population growth rates of these and other high-latitude skates increased with relative reproductive lifespan, but displayed no significant relationship with body size or depth distribution, suggesting that assemblage shifts may be difficult to predict for data-poor taxa. Elasticity analyses indicated that juvenile and adult survival had greater per-unit effects on population growth rates than did egg-case survival or fecundity. Population growth rate was affected more by uncertainty in age at maturity than maximum age. The results of this study indicate that if skates are deemed to be a management concern, gear modifications or depth-specific effort controls may be effective.</abstract><cop>United States</cop><pub>Public Library of Science</pub><pmid>23741442</pmid><doi>10.1371/journal.pone.0065000</doi><oa>free_for_read</oa></addata></record> |
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subjects | Age Algorithms Animals Bathyraja Biology Body size Commercial fishing Computer Simulation Data processing Demographics Demography Dipturus laevis Elasmobranchii Elasticity Empirical analysis Environment Estimates Fecundity Female Fish Fisheries Fishing Growth rate Laboratories Leucoraja erinacea Leucoraja ocellata Life history Life span Longevity Models, Statistical Monte Carlo Method Monte Carlo simulation Parameter estimation Parameter uncertainty Population Dynamics Population growth Population statistics Productivity Raja clavata Rajidae Sexual Maturation Skates (Fish) - growth & development Survival Sustainable fisheries Taxa Taxonomy Trends |
title | Comparative demography of skates: life-history correlates of productivity and implications for management |
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