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標題: A trophic model of fringing coral reefs in Nanwan Bay, southern Taiwan suggests overfishing
作者: Liu, P.J.
Shao, K.T.
Jan, R.Q.
Fan, T.Y.
Wong, S.L.
Hwang, J.S.
Chen, J.P.
Chen, C.C.
Lin, H.J.
關鍵字: Ecopath;Network analysis;Food web;Phase shift;Macroalgae;food-consumption;fish populations;phase-shifts;ecosystem;mortality;community;lagoon;temperature;embayment;growth
Project: Marine Environmental Research
期刊/報告no:: Marine Environmental Research, Volume 68, Issue 3, Page(s) 106-117.
Several coral reefs of Nanwan Bay, Taiwan have recently undergone shifts to macroalgal or sea anemone dominance. Thus, a mass-balance trophic model was constructed to analyze the structure and functioning of the food web. The fringing reef model was comprised of 18 compartments, with the highest trophic level of 3.45 for piscivorous fish. Comparative analyses with other reef models demonstrated that Nanwan Bay was similar to reefs with high fishery catches. While coral biomass was not lower, fish biomass was lower than those of reefs with high catches. Consequently, the sums of consumption and respiratory flows and total system throughput were also decreased. The Nanwan Bay model potentially suggests an overfished status in which the mean trophic level of the catch, matter cycling, and trophic transfer efficiency are extremely reduced. (C) 2009 Elsevier Ltd. All rights reserved.
ISSN: 0141-1136
DOI: 10.1016/j.marenvres.2009.04.009
Appears in Collections:生命科學系所

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