评估电镀雪蟹(Chionoecetes opilio)诱捕器的技术和经济可行性

Fishes Pub Date : 2024-03-19 DOI:10.3390/fishes9030109
Pete Brown, T. Araya-Schmidt, Terry Bungay, P. Winger
{"title":"评估电镀雪蟹(Chionoecetes opilio)诱捕器的技术和经济可行性","authors":"Pete Brown, T. Araya-Schmidt, Terry Bungay, P. Winger","doi":"10.3390/fishes9030109","DOIUrl":null,"url":null,"abstract":"Commercial harvesting of snow crabs (Chionoecetes opilio) began in Newfoundland and Labrador, Canada, in 1967. Today, the fishery consists of 2188 active fishing licenses and has grown into the province’s most economically valuable fishery. Snow crabs are captured using conical traps consisting of a mild carbon steel frame, hard plastic entry funnel and a jacket of polyethylene netting. The frames of these traps corrode over time, which is expedited by being deployed in marine environments and stored on land near the ocean when not in use. As a result, there is interest within the community to increase the longevity of crab traps. One solution is to galvanize the steel frames prior to installing the funnel and netting. However, before harvesters transition to galvanized traps, two questions must be answered. Will the use of galvanized steel negatively impact catch rates? Will the life cycle of a crab trap be extended sufficiently to justify the additional cost of galvanizing? This study employed a generalized linear mixed model to evaluate the catch of legal-sized male crabs (CPUE) during the commercial fishery as a function of three trap frame treatments (old traditional, new traditional and new galvanized). We also assessed the economic viability of galvanizing trap frames by evaluating the life cycle cost (LCC) of traditional and galvanized traps to the harvester. The LCC was calculated over a range of inflation (0–6%) and discount (3–20%) rates. Our results found no significant difference in CPUE between new traps (traditional vs. galvanized) and concluded that except during instances of very high discount rates (12.9–19.9%), it is economically favourable to galvanize crab trap frames.","PeriodicalId":505604,"journal":{"name":"Fishes","volume":"53 51","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2024-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Assessing the Technical and Economic Viability of Galvanizing Snow Crab (Chionoecetes opilio) Traps\",\"authors\":\"Pete Brown, T. Araya-Schmidt, Terry Bungay, P. Winger\",\"doi\":\"10.3390/fishes9030109\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Commercial harvesting of snow crabs (Chionoecetes opilio) began in Newfoundland and Labrador, Canada, in 1967. Today, the fishery consists of 2188 active fishing licenses and has grown into the province’s most economically valuable fishery. Snow crabs are captured using conical traps consisting of a mild carbon steel frame, hard plastic entry funnel and a jacket of polyethylene netting. The frames of these traps corrode over time, which is expedited by being deployed in marine environments and stored on land near the ocean when not in use. As a result, there is interest within the community to increase the longevity of crab traps. One solution is to galvanize the steel frames prior to installing the funnel and netting. However, before harvesters transition to galvanized traps, two questions must be answered. Will the use of galvanized steel negatively impact catch rates? Will the life cycle of a crab trap be extended sufficiently to justify the additional cost of galvanizing? This study employed a generalized linear mixed model to evaluate the catch of legal-sized male crabs (CPUE) during the commercial fishery as a function of three trap frame treatments (old traditional, new traditional and new galvanized). We also assessed the economic viability of galvanizing trap frames by evaluating the life cycle cost (LCC) of traditional and galvanized traps to the harvester. The LCC was calculated over a range of inflation (0–6%) and discount (3–20%) rates. Our results found no significant difference in CPUE between new traps (traditional vs. galvanized) and concluded that except during instances of very high discount rates (12.9–19.9%), it is economically favourable to galvanize crab trap frames.\",\"PeriodicalId\":505604,\"journal\":{\"name\":\"Fishes\",\"volume\":\"53 51\",\"pages\":\"\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2024-03-19\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Fishes\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.3390/fishes9030109\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Fishes","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.3390/fishes9030109","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0

摘要

加拿大纽芬兰和拉布拉多于 1967 年开始商业捕捞雪蟹(Chionoecetes opilio)。如今,该渔业拥有 2188 个有效捕捞许可证,并已发展成为该省最具经济价值的渔业。捕捉雪蟹使用锥形诱捕器,诱捕器由低碳钢框架、硬塑料入口漏斗和聚乙烯网衣组成。这些诱捕器的框架会随着时间的推移而腐蚀,在海洋环境中部署和不使用时在靠近海洋的陆地上存放会加速腐蚀。因此,社区对延长捕蟹笼的使用寿命很感兴趣。一种解决方案是在安装漏斗和网之前对钢架进行镀锌处理。不过,在捕捞者过渡到镀锌诱捕器之前,必须回答两个问题。使用镀锌钢是否会对捕获率产生负面影响?河蟹诱捕器的生命周期是否能延长到足以证明镀锌的额外成本是合理的?本研究采用广义线性混合模型,评估了商业捕捞期间合法规格雄蟹的捕获量(CPUE)与三种诱捕框处理(老式传统诱捕框、新式传统诱捕框和新型镀锌诱捕框)的函数关系。我们还通过评估传统诱捕器和镀锌诱捕器对捕捞者的生命周期成本(LCC)来评估镀锌诱捕框的经济可行性。生命周期成本是在一定的通货膨胀率(0-6%)和贴现率(3-20%)范围内计算得出的。我们的结果发现,新的诱捕器(传统诱捕器与镀锌诱捕器)在CPUE方面没有明显差异,并得出结论认为,除了在贴现率非常高(12.9-19.9%)的情况下,对蟹类诱捕器框架进行镀锌处理在经济上是有利的。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Assessing the Technical and Economic Viability of Galvanizing Snow Crab (Chionoecetes opilio) Traps
Commercial harvesting of snow crabs (Chionoecetes opilio) began in Newfoundland and Labrador, Canada, in 1967. Today, the fishery consists of 2188 active fishing licenses and has grown into the province’s most economically valuable fishery. Snow crabs are captured using conical traps consisting of a mild carbon steel frame, hard plastic entry funnel and a jacket of polyethylene netting. The frames of these traps corrode over time, which is expedited by being deployed in marine environments and stored on land near the ocean when not in use. As a result, there is interest within the community to increase the longevity of crab traps. One solution is to galvanize the steel frames prior to installing the funnel and netting. However, before harvesters transition to galvanized traps, two questions must be answered. Will the use of galvanized steel negatively impact catch rates? Will the life cycle of a crab trap be extended sufficiently to justify the additional cost of galvanizing? This study employed a generalized linear mixed model to evaluate the catch of legal-sized male crabs (CPUE) during the commercial fishery as a function of three trap frame treatments (old traditional, new traditional and new galvanized). We also assessed the economic viability of galvanizing trap frames by evaluating the life cycle cost (LCC) of traditional and galvanized traps to the harvester. The LCC was calculated over a range of inflation (0–6%) and discount (3–20%) rates. Our results found no significant difference in CPUE between new traps (traditional vs. galvanized) and concluded that except during instances of very high discount rates (12.9–19.9%), it is economically favourable to galvanize crab trap frames.
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
自引率
0.00%
发文量
0
×
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