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首页> 外文期刊>Ocean & coastal management >Socio-economy of marine ornamental fishery and its impact on the population structure of the clown anemonefish Amphiprion ocellaris and its host anemones in Spermonde Archipelago, Indonesia
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Socio-economy of marine ornamental fishery and its impact on the population structure of the clown anemonefish Amphiprion ocellaris and its host anemones in Spermonde Archipelago, Indonesia

机译：印度尼西亚Spermonde群岛海洋观赏渔业的社会经济及其对小丑海葵双锯鱼及其寄主海葵种群结构的影响

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摘要

The clown anemonefish 'Nemo' Amphiprion ocellaris is the most popular fish species in the global marine ornamental trade and also its host sea anemones Heteractis magnifica, Stichodactyla gigantea, and Sti-chodactyla mertensii are traded. However, total catch and the potential impact of exploitation of these target organisms in Spermonde Archipelago, Indonesia, are not known. Therefore, the main objective of this study was to investigate the impact of the fishery on populations of A. ocellaris and its host anemones and how management could be improved. In order to obtain a comprehensive view on the marine ornamental fishery and trade of these species in Spermonde, this study also investigated the socioeco-nomics of the marine ornamental fishery and the catch records for A. ocellaris and it's host anemones. The study revealed that both, A. ocellaris and sea anemone densities were significantly lower at coral reefs with high exploitation (HE) than at reefs with low exploitation (LE). The total body length and group size of A. ocellaris was also significantly smaller at HE than at HL sites. The yearly amount traded by middlemen is estimated to 140 000 specimens of A. ocellaris and 31 000 anemones. The socioeconomic analysis showed that educational level of marine fishermen family members was low; most of them only finished elementary school. The household income analysis showed that marine ornamental fishery was not the major source of income, covering 13-43% of the expenses, with the exception of one studied island (84%). These findings revealed a considerable negative impact of marine ornamental fishery on the target populations and therefore, the implications for management strategies and conservation are discussed, including fish size restrictions for collectors, marine protected areas and regular monitoring of the amount of trade at middlemen.
机译：小丑海葵“ Nemo”两栖纲鱼类是全球海洋观赏贸易中最受欢迎的鱼类，其寄主海葵Heteractis magnifica，Stichodactyla gigantea和Sti-chodactyla mertensii也在交易中。然而，在印度尼西亚的斯佩蒙德群岛，这些目标生物的总产量和潜在开发利用的影响尚不清楚。因此，这项研究的主要目的是调查渔业对小球藻及其寄主海葵种群的影响以及如何改善管理。为了全面了解Spermonde的海洋观赏渔业和这些物种的贸易，本研究还调查了海洋观赏渔业的社会经济学以及沙棘曲霉及其寄主海葵的捕获记录。研究显示，高开采率的珊瑚礁（HE）的小球藻和海葵密度均显着低于低开采率的珊瑚礁（LE）。 HE的球形体的总长度和群大小也显着小于HL部位。中间商每年交易的数量估计为14万标本和3.1万个海葵。社会经济分析表明，海洋渔民家庭成员的教育水平较低；他们大多数只读完小学。家庭收入分析表明，海洋观赏渔业不是主要的收入来源，占支出的13-43％，只有一个研究岛屿（84％）除外。这些发现揭示了海洋观赏渔业对目标人群的相当大的负面影响，因此，讨论了对管理战略和养护的影响，包括对捕捞者，鱼类保护区的鱼类大小的限制以及对中间商贸易量的定期监测。

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  • 来源
    《Ocean & coastal management》 |2014年第11期|41-50|共10页
  • 作者

    Hawis H. Madduppa; Karen von Juterzenka; Mohammad Syakir; Marc Kochzius;

  • 作者单位

    Department of Marine Science and Technology, Faculty of Fisheries and Marine Science, Bogor Agricultural University (IPB), Jl. Agatis No.1, Bogor 16680, Indonesia,Center for Environmental Research and Sustainable Technology (UFT), University of Bremen, FB2-UFT Leobener Strasse UFT, 28359 Bremen, Germany;

    Department of Marine Science and Technology, Faculty of Fisheries and Marine Science, Bogor Agricultural University (IPB), Jl. Agatis No.1, Bogor 16680, Indonesia;

    College of Marine Technology (STITEK) Balik Diwa, Jl.Perintis Kemerdekaan Ⅷ no.8, Makassar 90245, Indonesia;

    Marine Biology, Vrije Universiteit Brussel, Pleinlaan 2, 1050 Brussels, Belgium;

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