论文部分内容阅读
Long-term changes in the mean trophic level of tuna fishery in the Indian Ocean
【机 构】
：
College of Marine Science and Technology, Shanghai Fisheries University, Shanghai 200090 China
【出 处】
：
第三届世界生态高峰会(Eco Summit 2007)
【发表日期】
：
2007年12期
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