Effect of global warming on the distribution of Lucifer intermedius and L. hanseni (Decapoda) in the Changjiang estuary
文献类型: 外文期刊
作者: Ma, Zengling 1 ; Xu, Zhaoli 1 ; Zhou, Jin 1 ;
作者机构: 1.Chinese Acad Fisheries Sci, Key & Open Lab Marine & Estuary Fisheries, Minist Agr China, E China Sea Fisheries Res Inst, Shanghai 200090, Peoples R China
关键词: Zooplankton;Lucifer intermedius;Lucifer hanseni;Global warming;Changjiang estuary
期刊名称:PROGRESS IN NATURAL SCIENCE ( 影响因子:3.607; 五年影响因子:4.795 )
ISSN: 1002-0071
年卷期: 2009 年 19 卷 10 期
页码:
收录情况: SCI
摘要: We conducted an oceanographic census in 1959, 2002, and 2005 to evaluate changes in the temporo-spatial distribution and abundance of Lucifer intermedius and L. hanseni in the Changjiang estuary. In general, the abundance and frequency of occurrence (OF) for these two species were highest during the summer. We measured a significant change in the abundance and OF between years. The abundance and OF of L. intermedius increased from 3.7 individuals m(-3) and 66.67%, respectively, in 1959, to 8.93 individuals m(-3) and 85.19%, in 2002. In 1959, L. hanseni was only found during the summer (abundance: 0.01 individuals m(-3), OF: 3.70%). However, in 2002, this species was collected during all seasons except the winter. Furthermore, abundance (0.47 individuals m(-3)) and OF (25.93%) were higher in 2002 than in 1959. Further increases in abundance and OF were measured during cruises during the spring of 2005. We hypothesize that global warming is responsible for the increase in abundance of L. intermedius and L. hanseni and the northward expansion of L. hanseni in the Changjiang estuary. Given our results, monitoring of both species may be useful to evaluate the effects of climate change. (C) 2009 National Natural Science Foundation of China and Chinese Academy of Sciences. Published by Elsevier Limited and Science in China Press. All rights reserved.
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