短期的渔业收益掩盖了长期的资源痛苦:空间渔业管理的变化促进了拉布拉多雪蟹在大量开发期间的超稳定CPUE

IF 1.3 4区 农林科学 Q3 FISHERIES
Steven P. Griffeth, Krista D. Baker, Darrell R. J. Mullowney
{"title":"短期的渔业收益掩盖了长期的资源痛苦:空间渔业管理的变化促进了拉布拉多雪蟹在大量开发期间的超稳定CPUE","authors":"Steven P. Griffeth, Krista D. Baker, Darrell R. J. Mullowney","doi":"10.1002/nafm.10934","DOIUrl":null,"url":null,"abstract":"Abstract Objective The snow crab Chionoecetes opilio resource in Assessment Division 2HJ has experienced prolonged high exploitation rates and reduced exploitable biomass over the past two decades. We aimed to explore whether this poor state of the resource is associated with spatial management changes made in 2003 and 2013. Methods We tested for differences in fishery performance trends before and after the implementation of spatial management which include standardized CPUE, spatial extent of fishing effort, and size at maturity of male snow crabs. Result The results show that spatial regulatory changes were successful in increasing fishery catch rates in the short term but that chronic high exploitation eventually overrode these gains, with contracted fishing patterns leading to increased localized depletion rates on dominant stock components. This ultimately culminated in a downward shift in size at maturity and other concerning biological outcomes. Conclusion The analysis demonstrates spatial management measures contributed to the present poor state of Assessment Division 2HJ snow crab and that such measures should serve as complements to—not replacements for—stringent quota control.","PeriodicalId":19263,"journal":{"name":"North American Journal of Fisheries Management","volume":"4 1","pages":"0"},"PeriodicalIF":1.3000,"publicationDate":"2023-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Short‐term fishery gains mask long‐term resource pains: Spatial fisheries management changes promote hyperstable <scp>CPUE</scp> in Labrador snow crab <i>Chionoecetes opilio</i> during a period of heavy exploitation\",\"authors\":\"Steven P. Griffeth, Krista D. Baker, Darrell R. J. Mullowney\",\"doi\":\"10.1002/nafm.10934\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Abstract Objective The snow crab Chionoecetes opilio resource in Assessment Division 2HJ has experienced prolonged high exploitation rates and reduced exploitable biomass over the past two decades. We aimed to explore whether this poor state of the resource is associated with spatial management changes made in 2003 and 2013. Methods We tested for differences in fishery performance trends before and after the implementation of spatial management which include standardized CPUE, spatial extent of fishing effort, and size at maturity of male snow crabs. Result The results show that spatial regulatory changes were successful in increasing fishery catch rates in the short term but that chronic high exploitation eventually overrode these gains, with contracted fishing patterns leading to increased localized depletion rates on dominant stock components. This ultimately culminated in a downward shift in size at maturity and other concerning biological outcomes. Conclusion The analysis demonstrates spatial management measures contributed to the present poor state of Assessment Division 2HJ snow crab and that such measures should serve as complements to—not replacements for—stringent quota control.\",\"PeriodicalId\":19263,\"journal\":{\"name\":\"North American Journal of Fisheries Management\",\"volume\":\"4 1\",\"pages\":\"0\"},\"PeriodicalIF\":1.3000,\"publicationDate\":\"2023-10-06\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"North American Journal of Fisheries Management\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1002/nafm.10934\",\"RegionNum\":4,\"RegionCategory\":\"农林科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"FISHERIES\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"North American Journal of Fisheries Management","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1002/nafm.10934","RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"FISHERIES","Score":null,"Total":0}
引用次数: 0

摘要

摘要目的评价区2HJ区雪蟹资源近20年来长期处于高开采率和可开发生物量减少的状态。我们的目的是探讨资源的这种不良状态是否与2003年和2013年的空间管理变化有关。方法对实施空间管理前后渔业绩效趋势的差异进行检验,包括标准化CPUE、捕捞努力的空间程度和雄性雪蟹成熟大小。结果表明,空间调控变化在短期内成功地提高了渔业捕捞率,但长期的高开发最终超过了这些收益,捕捞模式的收缩导致主导种群成分的局部耗竭率增加。这最终导致了成熟时尺寸的下降和其他有关的生物学结果。结论空间管理措施是造成2HJ评价区雪蟹现状不佳的主要原因,应作为严格配额控制的补充而不是替代。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Short‐term fishery gains mask long‐term resource pains: Spatial fisheries management changes promote hyperstable CPUE in Labrador snow crab Chionoecetes opilio during a period of heavy exploitation
Abstract Objective The snow crab Chionoecetes opilio resource in Assessment Division 2HJ has experienced prolonged high exploitation rates and reduced exploitable biomass over the past two decades. We aimed to explore whether this poor state of the resource is associated with spatial management changes made in 2003 and 2013. Methods We tested for differences in fishery performance trends before and after the implementation of spatial management which include standardized CPUE, spatial extent of fishing effort, and size at maturity of male snow crabs. Result The results show that spatial regulatory changes were successful in increasing fishery catch rates in the short term but that chronic high exploitation eventually overrode these gains, with contracted fishing patterns leading to increased localized depletion rates on dominant stock components. This ultimately culminated in a downward shift in size at maturity and other concerning biological outcomes. Conclusion The analysis demonstrates spatial management measures contributed to the present poor state of Assessment Division 2HJ snow crab and that such measures should serve as complements to—not replacements for—stringent quota control.
求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
CiteScore
2.60
自引率
18.20%
发文量
118
审稿时长
2 months
期刊介绍: The North American Journal of Fisheries Management promotes communication among fishery managers with an emphasis on North America, and addresses the maintenance, enhancement, and allocation of fisheries resources. It chronicles the development of practical monitoring and management programs for finfish and exploitable shellfish in marine and freshwater environments. Contributions relate to the management of fish populations, habitats, and users to protect and enhance fish and fishery resources for societal benefits. Case histories of successes, failures, and effects of fisheries programs help convey practical management experience to others.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信