Geographic and seasonal variations in maturation and growth of female Pacific cod (Gadus macrocephalus) in the Gulf of Alaska and Bering Sea
This study investigates the temporal stability of length- and age-at-maturity estimates for female Pacific cod (Gadus macrocephalus) in the Gulf of Alaska and eastern Bering Sea. Females reached 50% maturity (A50) at 4.4 years in the Gulf of Alaska and at 4.9 years in the eastern Bering Sea. Total b...
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ftaquaticcommons:oai:generic.eprints.org:8882 2023-05-15T15:42:48+02:00 Geographic and seasonal variations in maturation and growth of female Pacific cod (Gadus macrocephalus) in the Gulf of Alaska and Bering Sea Stark, James W. 2007 application/pdf http://aquaticcommons.org/8882/ http://fishbull.noaa.gov/1053/stark.pdf http://aquaticcommons.org/8882/1/stark_Fish_Bull_2007.pdf http://aquaticcommons.org/8882/4/Stark%20pg%20404.pdf en eng http://aquaticcommons.org/8882/1/stark_Fish_Bull_2007.pdf http://aquaticcommons.org/8882/4/Stark%20pg%20404.pdf Stark, James W. (2007) Geographic and seasonal variations in maturation and growth of female Pacific cod (Gadus macrocephalus) in the Gulf of Alaska and Bering Sea. Fishery Bulletin, 105(3), pp. 396-407. Biology Ecology Fisheries Article PeerReviewed 2007 ftaquaticcommons 2020-02-27T09:23:18Z This study investigates the temporal stability of length- and age-at-maturity estimates for female Pacific cod (Gadus macrocephalus) in the Gulf of Alaska and eastern Bering Sea. Females reached 50% maturity (A50) at 4.4 years in the Gulf of Alaska and at 4.9 years in the eastern Bering Sea. Total body length at 50% maturity (LT50) was significantly smaller (503 mm) in the Gulf of Alaska than in the eastern Bering Sea (580 mm). The estimated length- and age-at-maturity did not differ significantly between winter and spring in either the Gulf of Alaska (1999) or Bering Sea (2003) areas. The results of this study raised the spawning biomass estimate of female Alaskan Pacific cod from 298×103 t for 2005 to 499×103 t for 2006. The increased spawning biomass estimate resulted in an increased over-fishing limit for Pacific cod. Article in Journal/Newspaper Bering Sea Alaska International Association of Aquatic and Marine Science Libraries and Information Centers (IAMSLIC): Aquatic Commons Bering Sea Gulf of Alaska Pacific |
institution |
Open Polar |
collection |
International Association of Aquatic and Marine Science Libraries and Information Centers (IAMSLIC): Aquatic Commons |
op_collection_id |
ftaquaticcommons |
language |
English |
topic |
Biology Ecology Fisheries |
spellingShingle |
Biology Ecology Fisheries Stark, James W. Geographic and seasonal variations in maturation and growth of female Pacific cod (Gadus macrocephalus) in the Gulf of Alaska and Bering Sea |
topic_facet |
Biology Ecology Fisheries |
description |
This study investigates the temporal stability of length- and age-at-maturity estimates for female Pacific cod (Gadus macrocephalus) in the Gulf of Alaska and eastern Bering Sea. Females reached 50% maturity (A50) at 4.4 years in the Gulf of Alaska and at 4.9 years in the eastern Bering Sea. Total body length at 50% maturity (LT50) was significantly smaller (503 mm) in the Gulf of Alaska than in the eastern Bering Sea (580 mm). The estimated length- and age-at-maturity did not differ significantly between winter and spring in either the Gulf of Alaska (1999) or Bering Sea (2003) areas. The results of this study raised the spawning biomass estimate of female Alaskan Pacific cod from 298×103 t for 2005 to 499×103 t for 2006. The increased spawning biomass estimate resulted in an increased over-fishing limit for Pacific cod. |
format |
Article in Journal/Newspaper |
author |
Stark, James W. |
author_facet |
Stark, James W. |
author_sort |
Stark, James W. |
title |
Geographic and seasonal variations in maturation and growth of female Pacific cod (Gadus macrocephalus) in the Gulf of Alaska and Bering Sea |
title_short |
Geographic and seasonal variations in maturation and growth of female Pacific cod (Gadus macrocephalus) in the Gulf of Alaska and Bering Sea |
title_full |
Geographic and seasonal variations in maturation and growth of female Pacific cod (Gadus macrocephalus) in the Gulf of Alaska and Bering Sea |
title_fullStr |
Geographic and seasonal variations in maturation and growth of female Pacific cod (Gadus macrocephalus) in the Gulf of Alaska and Bering Sea |
title_full_unstemmed |
Geographic and seasonal variations in maturation and growth of female Pacific cod (Gadus macrocephalus) in the Gulf of Alaska and Bering Sea |
title_sort |
geographic and seasonal variations in maturation and growth of female pacific cod (gadus macrocephalus) in the gulf of alaska and bering sea |
publishDate |
2007 |
url |
http://aquaticcommons.org/8882/ http://fishbull.noaa.gov/1053/stark.pdf http://aquaticcommons.org/8882/1/stark_Fish_Bull_2007.pdf http://aquaticcommons.org/8882/4/Stark%20pg%20404.pdf |
geographic |
Bering Sea Gulf of Alaska Pacific |
geographic_facet |
Bering Sea Gulf of Alaska Pacific |
genre |
Bering Sea Alaska |
genre_facet |
Bering Sea Alaska |
op_relation |
http://aquaticcommons.org/8882/1/stark_Fish_Bull_2007.pdf http://aquaticcommons.org/8882/4/Stark%20pg%20404.pdf Stark, James W. (2007) Geographic and seasonal variations in maturation and growth of female Pacific cod (Gadus macrocephalus) in the Gulf of Alaska and Bering Sea. Fishery Bulletin, 105(3), pp. 396-407. |
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1766376753525161984 |