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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/50235

Title: Trophic structure of the pelagic food web in the East China Sea
Authors: Mei-Ling Bai
Fan-Sian Lin
Yu-Ching Lee
Gwo-Ching Gong
Chih-hao Hsieh
Contributors: 國立臺灣海洋大學:海洋環境與生態研究所
Keywords: Bottom-up control
Top-down control
Transfer efficiency
Phytoplankton
Zooplankton
Fish
Temperature
Nutrient status
East China Sea
Date: 2015
Issue Date: 2018-09-25T08:56:22Z
Publisher: Zoological Studies
Abstract: Abstract: Trophic structure and trophic transfer efficiency are among the most fundamental characteristics of an ecosystem. They characterize the transfer of nutrient and energy and are crucial in estimating the yield of harvestable biomass. In this study, we investigated the regulation of trophic structure (phytoplankton, zooplankton, and larval fish abundance) and biomass ratio of zooplankton to phytoplankton (as an indicator of transfer efficiency) in the East China Sea, one of the largest marginal seas in the world and an important fishing ground. The results showed that when sea surface temperature was below 25°C, temperature co-acted with resource availability (zooplankton for larval fish and phytoplankton for zooplankton) in determining the trophic structure. When sea surface temperature was above 25°C, resource availability dominated the regulation of trophic structure. Biomass ratio of zooplankton to phytoplankton decreased with increasing phosphate concentration. Our study suggested that the trophic structure of the East China Sea might be controlled by bottom-up processes, and this control is mediated by temperature.
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/50235
Appears in Collections:[海洋環境與生態研究所] 期刊論文

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