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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ftdoajarticles:oai:doaj.org/article:93ae195309a04b7f811a61c6b41b510a 2023-05-15T15:43:46+02:00 Comparative demography of skates: life-history correlates of productivity and implications for management. Lewis A K Barnett Megan V Winton Shaara M Ainsley Gregor M Cailliet David A Ebert 2013-01-01T00:00:00Z https://doi.org/10.1371/journal.pone.0065000 https://doaj.org/article/93ae195309a04b7f811a61c6b41b510a EN eng Public Library of Science (PLoS) http://europepmc.org/articles/PMC3669027?pdf=render https://doaj.org/toc/1932-6203 1932-6203 doi:10.1371/journal.pone.0065000 https://doaj.org/article/93ae195309a04b7f811a61c6b41b510a PLoS ONE, Vol 8, Iss 5, p e65000 (2013) Medicine R Science Q article 2013 ftdoajarticles https://doi.org/10.1371/journal.pone.0065000 2022-12-31T04:40:13Z 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. Article in Journal/Newspaper Bering Sea Directory of Open Access Journals: DOAJ Articles Bering Sea PLoS ONE 8 5 e65000 |
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Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Medicine R Science Q |
spellingShingle |
Medicine R Science Q Lewis A K Barnett Megan V Winton Shaara M Ainsley Gregor M Cailliet David A Ebert Comparative demography of skates: life-history correlates of productivity and implications for management. |
topic_facet |
Medicine R Science Q |
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. |
format |
Article in Journal/Newspaper |
author |
Lewis A K Barnett Megan V Winton Shaara M Ainsley Gregor M Cailliet David A Ebert |
author_facet |
Lewis A K Barnett Megan V Winton Shaara M Ainsley Gregor M Cailliet David A Ebert |
author_sort |
Lewis A K Barnett |
title |
Comparative demography of skates: life-history correlates of productivity and implications for management. |
title_short |
Comparative demography of skates: life-history correlates of productivity and implications for management. |
title_full |
Comparative demography of skates: life-history correlates of productivity and implications for management. |
title_fullStr |
Comparative demography of skates: life-history correlates of productivity and implications for management. |
title_full_unstemmed |
Comparative demography of skates: life-history correlates of productivity and implications for management. |
title_sort |
comparative demography of skates: life-history correlates of productivity and implications for management. |
publisher |
Public Library of Science (PLoS) |
publishDate |
2013 |
url |
https://doi.org/10.1371/journal.pone.0065000 https://doaj.org/article/93ae195309a04b7f811a61c6b41b510a |
geographic |
Bering Sea |
geographic_facet |
Bering Sea |
genre |
Bering Sea |
genre_facet |
Bering Sea |
op_source |
PLoS ONE, Vol 8, Iss 5, p e65000 (2013) |
op_relation |
http://europepmc.org/articles/PMC3669027?pdf=render https://doaj.org/toc/1932-6203 1932-6203 doi:10.1371/journal.pone.0065000 https://doaj.org/article/93ae195309a04b7f811a61c6b41b510a |
op_doi |
https://doi.org/10.1371/journal.pone.0065000 |
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PLoS ONE |
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8 |
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5 |
container_start_page |
e65000 |
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1766377962515464192 |