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首页> 外文期刊>Estuarine Coastal and Shelf Science >Targeted fishes are larger and more abundant in 'no-take' areas in a subtropical marine park
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Targeted fishes are larger and more abundant in 'no-take' areas in a subtropical marine park

机译:在亚热带海洋公园的“禁食区”中,目标鱼类更大,更丰富

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The influence of 'no take' Marine Protected Areas (MPAs) on abundance and size of fishes varies considerably and the likely benefits are still debated. Meta-analyses reveal findings are biased towards studies in shallower depths suitable for diving surveys. Empirical comparisons in deeper waters, including among areas with differing spatial management, further contribute to understanding of MPA benefits and constraints. We compare length and abundance of commercially and recreationally targeted fishes (and bycatch) among management types within and adjacent to the Solitary Islands Marine Park (SIMP), Australia. Sampling was done on reefs between 25 and 40 m depth in 'no-take' and fished 'partially protected' areas within the marine park and fished areas outside the SIMP, using stereo- Baited Remote Underwater Videos (stereo-BRUVs) at eight, nine, thirteen and fourteen years after these 'no take' areas were established. Four species targeted by fishers: snapper Chrysophrys auratus, grey morwong Nemadactylus douglasi, pearl perch Glaucosoma scapulare, and venus-tuskfish Choerodon venustus, were more abundant and larger in 'no take' zones overall and showed an increase through time in 'no take' relative to both types of fished area. In contrast, there was no distinct pattern of four bycatch species increasing in abundance in 'no-take' areas. Abundances of fish in partially protected areas were similar to fished areas outside the MPA. This study adds empirical evidence to the assertion that 'no take' areas in particular, can contribute to both marine conservation and natural resource management.
机译:“不采取”海洋保护区(MPA)对鱼类的丰度和大小的影响差异很大,仍在争论可能的利益。荟萃分析显示发现偏向于适合潜水调查的较浅深度的研究。在更深水域(包括在空间管理不同的地区之间)的经验比较进一步有助于了解MPA的好处和局限性。我们比较了澳大利亚孤岛海洋公园(SIMP)内和附近的管理类型中商业和休闲目的鱼(和兼捕物)的长度和丰度。在8点处使用立体声诱饵远程水下录像(stereo-BRUVs),对海洋公园内SIMP以外的未捕获区域和捕鱼的“部分受保护”区域中的珊瑚礁进行了采样,采样深度为25至40 m。在这些“禁止”地区成立后的九,十三和十四年。渔民所针对的四个物种:鲷鱼,金丝鱼,灰色鲈(Madwong Nemadactylus douglasi),珍珠鲈(Glaucosoma scapulare)和金星-象牙鱼(Ceroerodon venustus),在“禁食”区域总体上更加丰富和较大,并且在“禁食”区域中随着时间的推移而增加相对于两种类型的捕鱼区。相比之下,在“禁食”区域中并没有四种增加的兼捕种类的明显增加模式。部分保护区的鱼类丰富度与MPA以外的捕捞区相似。这项研究为这样的论断增加了经验证据,即特别是“禁区”可以促进海洋保护和自然资源管理。

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