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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/46078

Title: The effects of system-scale removal of oyster-culture racks from Tapong Bay, southwestern Taiwan: model exploration and comparison with field observations.
Authors: Hsing-Juh Lin
Kwang-Tsao Shao
Hwey-Lian Hsieh
Wen-Tseng Lo
Xiao-Xun Dai
Contributors: 國立臺灣海洋大學:海洋生物研究所
Keywords: top-down control
coastal lagoon
oyster-hanging culture
Date: 2009
Issue Date: 2018-04-30T07:27:31Z
Publisher: Oxford Journals
Abstract: Abstract: Using Ecopath with Ecosim, a mass-balance trophic model was manipulated to predict temporal responses of community biomasses to the system-scale removal of oyster-culture racks from Tapong Bay, a eutrophic and poorly flushed lagoon in tropical Taiwan. The model predictions were further compared with separate field observations over a period of 2.5 years. The removal of the oysters was predicted to result in increases in most community biomasses. The model predictions approximately matched the trends of the field observations for phytoplankton, zooplankton, detritivorous fish, and detritus after the removal, so providing a trophic explanation for the responses of these communities in the lagoon. The observed biomasses of benthic communities declined, however, probably as a result of a reduction in biodeposition from the oysters. The biomasses of pelagic fish and soft-bottom fish increased, but that of reef fish decreased after the removal. The field observations demonstrated that plankton communities were controlled, but the biomasses of the benthic and fish communities were enhanced by a high density of suspended oyster culture in a eutrophic lagoon.
Relation: pp.797-810
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/46078
Appears in Collections:[海洋生物研究所] 期刊論文

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