Reappearance of Spawning Atlantic Herring ( Clupea harengus harengus ) on Georges Bank: Population Resurgence not Recolonization
Spawning Atlantic herring (Clupea harengus harengus L.) have been recorded on Georges Bank for the first time since the collapse in 1977 of what had once been the largest herring fishery in the Northwest Atlantic. The reappearance after almost a decade could have resulted from resurgence of a residu...
Published in: | Canadian Journal of Fisheries and Aquatic Sciences |
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Language: | English |
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Canadian Science Publishing
1990
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Online Access: | http://dx.doi.org/10.1139/f90-121 http://www.nrcresearchpress.com/doi/pdf/10.1139/f90-121 |
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crcansciencepubl:10.1139/f90-121 2023-12-17T10:47:36+01:00 Reappearance of Spawning Atlantic Herring ( Clupea harengus harengus ) on Georges Bank: Population Resurgence not Recolonization Stephenson, Robert L. Kornfield, Irv 1990 http://dx.doi.org/10.1139/f90-121 http://www.nrcresearchpress.com/doi/pdf/10.1139/f90-121 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Fisheries and Aquatic Sciences volume 47, issue 6, page 1060-1064 ISSN 0706-652X 1205-7533 Aquatic Science Ecology, Evolution, Behavior and Systematics journal-article 1990 crcansciencepubl https://doi.org/10.1139/f90-121 2023-11-19T13:38:33Z Spawning Atlantic herring (Clupea harengus harengus L.) have been recorded on Georges Bank for the first time since the collapse in 1977 of what had once been the largest herring fishery in the Northwest Atlantic. The reappearance after almost a decade could have resulted from resurgence of a residual extant Georges Bank population or from recolonization by fish from neighboring spawning groups. Three independent lines of evidence are consistent with the resurgence hypothesis: the Georges bank fish differed in age composition and isozyme characteristics from neighboring populations, and the reappearance was later than expected for recolonization. The degree of isozyme variability and of mitochondrial DNA lineage diversity gave no indication that stochastic events influenced the genetic structure of the herring population at Georges Bank after the collapse. The persistence of this population, in spite of considerable potential for recolonization, supports the discrete population concept in herring. Article in Journal/Newspaper Northwest Atlantic Canadian Science Publishing (via Crossref) Canadian Journal of Fisheries and Aquatic Sciences 47 6 1060 1064 |
institution |
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 Stephenson, Robert L. Kornfield, Irv Reappearance of Spawning Atlantic Herring ( Clupea harengus harengus ) on Georges Bank: Population Resurgence not Recolonization |
topic_facet |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
description |
Spawning Atlantic herring (Clupea harengus harengus L.) have been recorded on Georges Bank for the first time since the collapse in 1977 of what had once been the largest herring fishery in the Northwest Atlantic. The reappearance after almost a decade could have resulted from resurgence of a residual extant Georges Bank population or from recolonization by fish from neighboring spawning groups. Three independent lines of evidence are consistent with the resurgence hypothesis: the Georges bank fish differed in age composition and isozyme characteristics from neighboring populations, and the reappearance was later than expected for recolonization. The degree of isozyme variability and of mitochondrial DNA lineage diversity gave no indication that stochastic events influenced the genetic structure of the herring population at Georges Bank after the collapse. The persistence of this population, in spite of considerable potential for recolonization, supports the discrete population concept in herring. |
format |
Article in Journal/Newspaper |
author |
Stephenson, Robert L. Kornfield, Irv |
author_facet |
Stephenson, Robert L. Kornfield, Irv |
author_sort |
Stephenson, Robert L. |
title |
Reappearance of Spawning Atlantic Herring ( Clupea harengus harengus ) on Georges Bank: Population Resurgence not Recolonization |
title_short |
Reappearance of Spawning Atlantic Herring ( Clupea harengus harengus ) on Georges Bank: Population Resurgence not Recolonization |
title_full |
Reappearance of Spawning Atlantic Herring ( Clupea harengus harengus ) on Georges Bank: Population Resurgence not Recolonization |
title_fullStr |
Reappearance of Spawning Atlantic Herring ( Clupea harengus harengus ) on Georges Bank: Population Resurgence not Recolonization |
title_full_unstemmed |
Reappearance of Spawning Atlantic Herring ( Clupea harengus harengus ) on Georges Bank: Population Resurgence not Recolonization |
title_sort |
reappearance of spawning atlantic herring ( clupea harengus harengus ) on georges bank: population resurgence not recolonization |
publisher |
Canadian Science Publishing |
publishDate |
1990 |
url |
http://dx.doi.org/10.1139/f90-121 http://www.nrcresearchpress.com/doi/pdf/10.1139/f90-121 |
genre |
Northwest Atlantic |
genre_facet |
Northwest Atlantic |
op_source |
Canadian Journal of Fisheries and Aquatic Sciences volume 47, issue 6, page 1060-1064 ISSN 0706-652X 1205-7533 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/f90-121 |
container_title |
Canadian Journal of Fisheries and Aquatic Sciences |
container_volume |
47 |
container_issue |
6 |
container_start_page |
1060 |
op_container_end_page |
1064 |
_version_ |
1785571501878018048 |