Reef degradation and coral biodiversity in Indonesia: Effects of land-based pollution, destructive fishing practices and changes over time
Reef degradation and coral biodiversity in Indonesia: Effects of land-based pollution, destructive fishing practices and changes over time
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DOI:
10.1016/s0025-326x(98)00047-2
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发表时间:
1998-08-01
影响因子:
5.8
通讯作者:
Risk, MJ
中科院分区:
文献类型:
--
作者:
Edinger, EN;Jompa, J;Risk, MJ
Species-area curves calculated from line-intercept transect surveys on 15 reefs in three regions of Indonesia allow estimation of the relative decrease in within-habitat coral species diversity associated with different types of reef degradation. Reefs subject to land-based pollution (sewage, sedimentation, and/or industrial pollution) show 30-50% reduced diversity at 3 m , and 40-60% reduced diversity at 10 m depth relative to unpolluted comparison reefs in each region. Bombed or anchor damaged reefs are ca 50% less diverse in shallow water (3 m depth) than are undamaged reefs in the same region, but at 10 m depth the relative decrease is only 10%, Comparison reefs in the Java Sea are ca 20% less diverse than their counterparts in Ambon, Maluku, The results, compared with a previous survey in the Spermonde Archipelago found a 25% decrease in generic diversity of corals on two reefs resampled after 15 years, The decreased diversity on reefs subject to land-based pollution implies a dramatic, rapid decrease in Indonesian reef-based fisheries resources. (C) 1998 Elsevier Science Ltd. All rights reserved.