Fox Helen E, Pet Jos S, Dahuri Rokhmin, Caldwell Roy L
Department of Integrative Biology, 3060 VLSB, U.C. Berkeley, Berkeley, CA 94720-3140, USA.
Mar Pollut Bull. 2003 Aug;46(8):1024-31. doi: 10.1016/S0025-326X(03)00246-7.
This paper presents initial results from a study of factors that inhibit or enhance hard coral recovery in rubble fields created by blast fishing in Komodo National Park and Bunaken National Park, Indonesia. Within nine sites monitored since 1998, there was no significant natural recovery. Levels of potential source coral larvae were assessed with settlement tiles in the rubble fields and in nearby high coral cover sites. Rubble movement was measured and shown to be detrimental to small scleractinians, especially in high current areas. In shallow water (2-6 m deep), rubble is often overgrown by soft corals and corallimorpharians, which inhibit hard coral survival. There is increased scleractinian recruitment in quadrats cleared of soft coral, and Acropora nubbins transplanted into soft coral fields suffer greater mortality than those transplanted above the soft coral canopy. Gaining an understanding of the prognosis for coral recovery is essential not only in order to assess the long-term impacts of blast fishing, but also to improve management decisions about protection of intact reefs and potential restoration of damaged areas.
本文展示了一项研究的初步结果，该研究针对印度尼西亚科莫多国家公园和布纳肯国家公园中因炸鱼形成的碎石区域内抑制或促进硬珊瑚恢复的因素展开。自1998年起监测的九个地点内，未出现显著的自然恢复情况。通过在碎石区域及附近高珊瑚覆盖率区域放置附着基来评估潜在源珊瑚幼虫的数量。测量发现碎石移动对小型石珊瑚有害，尤其是在水流湍急的区域。在浅水区（水深2至6米），碎石常被软珊瑚和珊瑚藻覆盖，这抑制了硬珊瑚的生存。清除软珊瑚的样方内石珊瑚的补充量增加，移植到软珊瑚区域的鹿角珊瑚断枝比移植到软珊瑚冠层上方的断枝死亡率更高。了解珊瑚恢复的预后情况不仅对于评估炸鱼的长期影响至关重要，而且对于改进关于完整珊瑚礁保护和受损区域潜在恢复的管理决策也很重要。
