Year-class detection reveals climatic modulation of settlement strength in the European lobster, Homarus gammarus
Understanding the nature of recruitment relationships in the European lobster, Homarus gammarus, has been an intractable problem because of difficulties associated with quantification of its scarce planktonic larvae and early benthic phase. We attempt to address this problem by analyzing the age com...
Published in: | Canadian Journal of Fisheries and Aquatic Sciences |
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Online Access: | http://dx.doi.org/10.1139/f02-083 http://www.nrcresearchpress.com/doi/pdf/10.1139/f02-083 |
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crcansciencepubl:10.1139/f02-083 2023-12-17T10:29:54+01:00 Year-class detection reveals climatic modulation of settlement strength in the European lobster, Homarus gammarus Sheehy, M R.J Bannister, R C.A 2002 http://dx.doi.org/10.1139/f02-083 http://www.nrcresearchpress.com/doi/pdf/10.1139/f02-083 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Fisheries and Aquatic Sciences volume 59, issue 7, page 1132-1143 ISSN 0706-652X 1205-7533 Aquatic Science Ecology, Evolution, Behavior and Systematics journal-article 2002 crcansciencepubl https://doi.org/10.1139/f02-083 2023-11-19T13:39:01Z Understanding the nature of recruitment relationships in the European lobster, Homarus gammarus, has been an intractable problem because of difficulties associated with quantification of its scarce planktonic larvae and early benthic phase. We attempt to address this problem by analyzing the age composition of a population off the northeast coast of England. Age-dependent in situ deposits of neurolipofuscin in the eyestalk are used as an age index. An approach is presented that accounts and (or) corrects for the two most important potential sources of error in age determinations by this technique, namely environmental temperature variation and unexplained individual variation. This yields, for the first time in very long-lived clawed lobsters, reproducible catch age structures with year-class resolution. The method should be generally applicable to crustaceans. Cross-correlation analysis shows that larval settlement strength in the European lobster is associated with local sea temperatures and onshore winds in a manner similar to that reported for other lobsters. These findings have important implications for stock assessment, particularly the use of traditional models dependent on size and steady state, yield forecasting, the effects of global climate change, arguments about spawner protection or restocking, and the spawner–recruit relationship. Article in Journal/Newspaper European lobster Homarus gammarus Canadian Science Publishing (via Crossref) Canadian Journal of Fisheries and Aquatic Sciences 59 7 1132 1143 |
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Open Polar |
collection |
Canadian Science Publishing (via Crossref) |
op_collection_id |
crcansciencepubl |
language |
English |
topic |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Aquatic Science Ecology, Evolution, Behavior and Systematics Sheehy, M R.J Bannister, R C.A Year-class detection reveals climatic modulation of settlement strength in the European lobster, Homarus gammarus |
topic_facet |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
description |
Understanding the nature of recruitment relationships in the European lobster, Homarus gammarus, has been an intractable problem because of difficulties associated with quantification of its scarce planktonic larvae and early benthic phase. We attempt to address this problem by analyzing the age composition of a population off the northeast coast of England. Age-dependent in situ deposits of neurolipofuscin in the eyestalk are used as an age index. An approach is presented that accounts and (or) corrects for the two most important potential sources of error in age determinations by this technique, namely environmental temperature variation and unexplained individual variation. This yields, for the first time in very long-lived clawed lobsters, reproducible catch age structures with year-class resolution. The method should be generally applicable to crustaceans. Cross-correlation analysis shows that larval settlement strength in the European lobster is associated with local sea temperatures and onshore winds in a manner similar to that reported for other lobsters. These findings have important implications for stock assessment, particularly the use of traditional models dependent on size and steady state, yield forecasting, the effects of global climate change, arguments about spawner protection or restocking, and the spawner–recruit relationship. |
format |
Article in Journal/Newspaper |
author |
Sheehy, M R.J Bannister, R C.A |
author_facet |
Sheehy, M R.J Bannister, R C.A |
author_sort |
Sheehy, M R.J |
title |
Year-class detection reveals climatic modulation of settlement strength in the European lobster, Homarus gammarus |
title_short |
Year-class detection reveals climatic modulation of settlement strength in the European lobster, Homarus gammarus |
title_full |
Year-class detection reveals climatic modulation of settlement strength in the European lobster, Homarus gammarus |
title_fullStr |
Year-class detection reveals climatic modulation of settlement strength in the European lobster, Homarus gammarus |
title_full_unstemmed |
Year-class detection reveals climatic modulation of settlement strength in the European lobster, Homarus gammarus |
title_sort |
year-class detection reveals climatic modulation of settlement strength in the european lobster, homarus gammarus |
publisher |
Canadian Science Publishing |
publishDate |
2002 |
url |
http://dx.doi.org/10.1139/f02-083 http://www.nrcresearchpress.com/doi/pdf/10.1139/f02-083 |
genre |
European lobster Homarus gammarus |
genre_facet |
European lobster Homarus gammarus |
op_source |
Canadian Journal of Fisheries and Aquatic Sciences volume 59, issue 7, page 1132-1143 ISSN 0706-652X 1205-7533 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/f02-083 |
container_title |
Canadian Journal of Fisheries and Aquatic Sciences |
container_volume |
59 |
container_issue |
7 |
container_start_page |
1132 |
op_container_end_page |
1143 |
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1785582777669779456 |