Reef degradation and coral biodiversity in indonesia: Effects of land based pollution, destructive fishing practices and changes over time

Edinger, Evan N. and Jompad, Jamaluddin and Limmone, Gino V and Widjatmoko, Wisnu and Risk, Michael J. (1998) Reef degradation and coral biodiversity in indonesia: Effects of land based pollution, destructive fishing practices and changes over time. Marine Pollution Bulletin, 36 (8). pp. 617-630. ISSN 0025-326X

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Abstract

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.

Item Type:Article
Uncontrolled Keywords:biodiversity; reef degradation; Indonesia
Subjects:G Geography. Anthropology. Recreation > GC Oceanography
Divisions:Faculty of Fisheries and Marine Sciences > Department of Marine Science
ID Code:552
Deposited By:Mr. Sugeng Priyanto
Deposited On:10 Sep 2009 13:38
Last Modified:10 Sep 2009 13:38

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