短期诱饵远程水下视频作为评估海洋禁渔区有效性的成本效益工具

IF 1 4区 地球科学 Q3 MARINE & FRESHWATER BIOLOGY
Marcos F Tomasi, L. Waters, I. Cruz, A. Z. Güth, A. Turra
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引用次数: 0

摘要

评估海洋禁渔区(NTZ)的有效性可能会使成本或劳动力望而却步,因此通常缺乏与附近未受保护区域的比较。对巴西圣保罗乌巴图巴的Ilha Anchieta州立公园和Palmas岛附近的两个ntz进行了物种丰富度、多样性和鱼系动物丰度的评估,并将它们与附近两个未受保护的“Take”区进行了比较。通过23次使用带饵远程水下视频(BRUV)的部署,记录了51种鱼类的737条个体。NTZ群落组成与Take区差异显著,平均物种丰富度、丰度和多样性均高于Take区,但均匀度相似。7个物种在ntz中更为丰富,占ntz与Take组成差异的72%以上。每个区域内单个站点的比较显示Mar Virado Take区域的高变异性,其中一个站点与NTZs分组相似度为30%。与此同时,短期内部署的BRUV被评估为一种潜在的快速、低成本的方法,用于分析海洋保护区的有效性,对资源不完整的低收入和中等收入国家的保护区管理很重要。BRUV在Take和NTZs之间发现了显著的群落结构差异,每个分类中站点之间没有差异。与在四个研究地点中的两个(MV和PA)进行的更长时间的BRUV相比,我们的快速研究使用28%的调查工作量记录了44.3%的物种。与采用多种方法记录第三点(AI)所有潜在物种的方法相比,BRUV方法记录了总物种的30%,使用了4.2%的调查工作量。BRUV表现出对bb0 - 15cm的体型类别和某些进食策略的偏好,如果评估单一目标物种,这一点很重要。总体而言,BRUV的快速实施表明,不同渔业保护水平的地点之间存在明显差异。摘要
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Short Period Baited Remote Underwater Video as a cost-benefit tool to evaluate effectiveness of Marine No-take Zones
Evaluating effectiveness of marine No-take Zones (NTZ) can be cost or labor prohibitive, thus comparisons to nearby unprotected areas are typically lacking. Two NTZs were evaluated, the waters surrounding Ilha Anchieta State Park and Palmas Island in Ubatuba, São Paulo, Brazil, for species richness, diversity, and abundance of ichthyofauna, comparing them with two nearby unprotected “Take” Zones. From 23 deployments using Baited Remote Underwater Video (BRUV), 737 individuals from 51 species of fish were recorded. The NTZ community composition was significantly different from Take Zones, with higher average species richness, abundance, and diversity but similar evenness. Seven species, accounting for more than 72% of the composition differences between Take and NTZs, were more abundant in NTZs. Comparisons of individual sites within each zone showed high variability for the Mar Virado Take Zone, with one site grouped with NTZs at 30% similarity. In parallel, BRUV deployed over a short period was assessed as a potential rapid, low-cost method for analyzing the effectiveness of a marine protected area, important for management of sites in low- and middle-income countries with patchy resource availability. BRUV distinguished significant community structure differences between Take and NTZs, with no difference between sites within each classification. Comparing with BRUV conducted for a longer period at two of the four study sites (MV and PA), our rapid study recorded 44.3% of total species using 28% of the survey effort. Compared with a multi-method survey as a proxy for a record of all potential species present at a third site (AI), BRUV recorded 30% of total species using 4.2% of the survey effort. BRUV showed bias towards size classes >15cm and certain feeding strategies, important to note if assessing a single target species. Overall, this rapid implementation of BRUV showed a clear difference between sites that differed in fishing protection level. Abstract
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来源期刊
CiteScore
1.60
自引率
12.50%
发文量
21
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