Variation of Female Size and Stage at Maturity in Snow Crab (Chionoecetes Opilio) (Brachyura: Majidae) from the Eastern Bering Sea
We investigated geographic variation in size and stage (instar) at maturity of snow crab (Chionoecetes opilio) on the eastern Bering Sea shelf. Size-frequency distribution analysis showed that females can reach maturity at four different instars, presumably Instars VIII to XI. Geographic variation i...
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ftconicet:oai:ri.conicet.gov.ar:11336/102626 2023-10-09T21:50:20+02:00 Variation of Female Size and Stage at Maturity in Snow Crab (Chionoecetes Opilio) (Brachyura: Majidae) from the Eastern Bering Sea Orensanz, Jose Maria Ernst, Billy Armstrong, David A. application/pdf http://hdl.handle.net/11336/102626 eng eng Oxford University Press info:eu-repo/semantics/altIdentifier/doi/10.1651/S-2790.1 info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/jcb/article/27/4/576/2548195 http://hdl.handle.net/11336/102626 Orensanz, Jose Maria; Ernst, Billy; Armstrong, David A.; Variation of Female Size and Stage at Maturity in Snow Crab (Chionoecetes Opilio) (Brachyura: Majidae) from the Eastern Bering Sea; Oxford University Press; Journal of Crustacean Biology; 27; 4; 1-2007; 576-591 0278-0372 CONICET Digital CONICET info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion ftconicet https://doi.org/10.1651/S-2790.1 2023-09-24T18:29:22Z We investigated geographic variation in size and stage (instar) at maturity of snow crab (Chionoecetes opilio) on the eastern Bering Sea shelf. Size-frequency distribution analysis showed that females can reach maturity at four different instars, presumably Instars VIII to XI. Geographic variation in instar structure generates clinal variation in size at maturity, from small size at high latitudes (colder) to large size at low latitudes (warmer). Different pieces of evidence support the hypothesis that geographic variation in mature female size is a phenotypic response to environmental conditions governed by a single reaction norm. Clinal variation conforms to the ‘‘inverse Bergmann’s rule’’. We argue that a single macroecological rule should not be expected to explain all latitudinal size gradients observed in marine invertebrates. Size at maturity fluctuated cyclically, and was negatively and significantly cross-correlated with strength in the recruitment of females to the mature population. Cycles in the latter were manifested as four commensurate and regularly spaced pulses over the last three decades. Mechanisms that may underlay this intriguing phenomenon, including density-dependent growth rate, require further scrutiny. Fil: Orensanz, Jose Maria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; Argentina Fil: Ernst, Billy. Universidad de Concepción; Chile Fil: Armstrong, David A. University of Washington; Estados Unidos Article in Journal/Newspaper Bering Sea Chionoecetes opilio Snow crab CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) Bering Sea Argentina Journal of Crustacean Biology 27 4 576 591 |
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Open Polar |
collection |
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) |
op_collection_id |
ftconicet |
language |
English |
topic |
https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
spellingShingle |
https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 Orensanz, Jose Maria Ernst, Billy Armstrong, David A. Variation of Female Size and Stage at Maturity in Snow Crab (Chionoecetes Opilio) (Brachyura: Majidae) from the Eastern Bering Sea |
topic_facet |
https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
description |
We investigated geographic variation in size and stage (instar) at maturity of snow crab (Chionoecetes opilio) on the eastern Bering Sea shelf. Size-frequency distribution analysis showed that females can reach maturity at four different instars, presumably Instars VIII to XI. Geographic variation in instar structure generates clinal variation in size at maturity, from small size at high latitudes (colder) to large size at low latitudes (warmer). Different pieces of evidence support the hypothesis that geographic variation in mature female size is a phenotypic response to environmental conditions governed by a single reaction norm. Clinal variation conforms to the ‘‘inverse Bergmann’s rule’’. We argue that a single macroecological rule should not be expected to explain all latitudinal size gradients observed in marine invertebrates. Size at maturity fluctuated cyclically, and was negatively and significantly cross-correlated with strength in the recruitment of females to the mature population. Cycles in the latter were manifested as four commensurate and regularly spaced pulses over the last three decades. Mechanisms that may underlay this intriguing phenomenon, including density-dependent growth rate, require further scrutiny. Fil: Orensanz, Jose Maria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; Argentina Fil: Ernst, Billy. Universidad de Concepción; Chile Fil: Armstrong, David A. University of Washington; Estados Unidos |
format |
Article in Journal/Newspaper |
author |
Orensanz, Jose Maria Ernst, Billy Armstrong, David A. |
author_facet |
Orensanz, Jose Maria Ernst, Billy Armstrong, David A. |
author_sort |
Orensanz, Jose Maria |
title |
Variation of Female Size and Stage at Maturity in Snow Crab (Chionoecetes Opilio) (Brachyura: Majidae) from the Eastern Bering Sea |
title_short |
Variation of Female Size and Stage at Maturity in Snow Crab (Chionoecetes Opilio) (Brachyura: Majidae) from the Eastern Bering Sea |
title_full |
Variation of Female Size and Stage at Maturity in Snow Crab (Chionoecetes Opilio) (Brachyura: Majidae) from the Eastern Bering Sea |
title_fullStr |
Variation of Female Size and Stage at Maturity in Snow Crab (Chionoecetes Opilio) (Brachyura: Majidae) from the Eastern Bering Sea |
title_full_unstemmed |
Variation of Female Size and Stage at Maturity in Snow Crab (Chionoecetes Opilio) (Brachyura: Majidae) from the Eastern Bering Sea |
title_sort |
variation of female size and stage at maturity in snow crab (chionoecetes opilio) (brachyura: majidae) from the eastern bering sea |
publisher |
Oxford University Press |
url |
http://hdl.handle.net/11336/102626 |
geographic |
Bering Sea Argentina |
geographic_facet |
Bering Sea Argentina |
genre |
Bering Sea Chionoecetes opilio Snow crab |
genre_facet |
Bering Sea Chionoecetes opilio Snow crab |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1651/S-2790.1 info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/jcb/article/27/4/576/2548195 http://hdl.handle.net/11336/102626 Orensanz, Jose Maria; Ernst, Billy; Armstrong, David A.; Variation of Female Size and Stage at Maturity in Snow Crab (Chionoecetes Opilio) (Brachyura: Majidae) from the Eastern Bering Sea; Oxford University Press; Journal of Crustacean Biology; 27; 4; 1-2007; 576-591 0278-0372 CONICET Digital CONICET |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
op_doi |
https://doi.org/10.1651/S-2790.1 |
container_title |
Journal of Crustacean Biology |
container_volume |
27 |
container_issue |
4 |
container_start_page |
576 |
op_container_end_page |
591 |
_version_ |
1779313378124103680 |