마이크로네시아 코스레주 지형과 산호 형성과 관련된 산호 및 수산생물의 공간분포

Abstract

This study have carried to get the approximate state of the coral reefs and to provide a basic information concerning to quantitative stocks of fisheries such as Trochus, Giant clam, around Kosrae island. The topographical characteristics were divided to three types, reef flat, slope and small ravine, approximately. First type have composed to the slope flat type and complicated topography by the clump of brain corals, Acropora sp., Diploastrea sp., Montastera sp. And so on., until 15m depth, and spreaded to deep slope along the deep area . Second type have composed deep slopes than the first type area and formed the small ravine partially Coralline debris and breakages have accumulated on the ravine. Strong downward currents flowed from shallow area to deep area along to the ravine. The corals,, Montastera sp., showed terrace shape along the slope. Third type also showed similar to second type in topographical shape. Branching type coral, Porites sp., and fan coral, Montipora aequituberulata, scattered between 8m to 15m depth.