Patterns in abundance, size and space-use of Giant Mud Crab (Scylla serrata) in a temperate marine protected area

IF 2.5 3区 环境科学与生态学 Q3 ENVIRONMENTAL SCIENCES Aquatic Conservation-Marine and Freshwater Ecosystems Pub Date : 2024-05-18 DOI:10.1002/aqc.4167
Daniel E. Hewitt, Daniel D. Johnson, Luke Erskine, David Harasti, Iain M. Suthers, Matthew D. Taylor
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温带海洋保护区中巨型泥蟹(Scylla serrata)的丰度、大小和空间利用模式
海洋保护区限制捕鱼是为了保护多种物种并提高生物多样性。因此,禁渔对物种的益处可能不尽相同,需要针对具体物种进行评估,以确定禁渔的影响。在澳大利亚温带东海岸(32.45°S)的史蒂芬斯港-大湖海洋公园,比较了禁渔区和捕捞区巨型泥蟹(Scylla serrata)的相对丰度和大小。此外,还利用被动声学遥测技术估算了每天的空间使用面积。在禁渔区和捕捞区观察到的丰度相似;但某些禁渔区的丰度高于其他禁渔区。此外,禁捕区的螃蟹平均大 9.9 毫米。螃蟹每天使用的空间差异很大(约 4 到 1000 平方米),一般随水温和电导率的升高而增加。这些模式表明,招募过程与海洋公园保护相互作用,形成了整个河口的螃蟹丰量。然而,禁捕区似乎主要限制了合法规格螃蟹(即胴体长度为 85 毫米)的捕捞死亡率,导致禁捕区内的螃蟹体型较大。这可能意味着禁渔区提高了螃蟹种群的繁殖产量,因为个体较大的螃蟹可能繁殖力更强。
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来源期刊
Aquatic Conservation-Marine and Freshwater Ecosystems
Aquatic Conservation-Marine and Freshwater Ecosystems 环境科学-海洋与淡水生物学
CiteScore
5.50
自引率
4.20%
发文量
143
审稿时长
18-36 weeks
期刊介绍: Aquatic Conservation: Marine and Freshwater Ecosystems is an international journal dedicated to publishing original papers that relate specifically to freshwater, brackish or marine habitats and encouraging work that spans these ecosystems. This journal provides a forum in which all aspects of the conservation of aquatic biological resources can be presented and discussed, enabling greater cooperation and efficiency in solving problems in aquatic resource conservation.
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