The effect of sea surface temperature increase on the potential habitat of Ommastrephes bartramii in the Northwest Pacif
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The effect of sea surface temperature increase on the potential habitat of Ommastrephes bartramii in the Northwest Pacific Ocean XU Jie1, 5, CHEN Xinjun1, 2, 3, 5, CHEN Yong4, 5, DING Qi1, 5, TIAN Siquan1, 2, 3, 5 1 College of Marine Sciences, Shanghai Ocean University, Shanghai 201306, China 2 Key Laboratory of Sustainable Exploitation of Oceanic Fisheries Resources, Shanghai Ocean University, Ministry of
Education, Shanghai 201306, China 3 National Engineering Research Center for Oceanic Fisheries, Shanghai Ocean University, Shanghai 201306, China 4 School of Marine Sciences, University of Maine, Orono, ME 04469, USA 5 Collaborative Innovation Center for National Distant-water Fisheries, Shanghai 201306, China
Received 3 September 2014; accepted 22 October 2014 ©The Chinese Society of Oceanography and Springer-Verlag Berlin Heidelberg 2016
Abstract
In the Northwest Pacific Ocean, the squid jigging fisheries from China, Japan and other countries and regions have targeted the west winter-spring cohort of neon flying squid (Ommastrephes bartramii) from August to November since the 1970s. This squid is a short-lived ecological opportunist with a life-span of about one year, and its population is labile and recruitment variability is driven by the environment or climate change. This variability provides a challenge for ones to forecast the key habitats affected by climate change. The catch data of O. bartramii from Chinese squid jigging fishery and the satellite-derived sea surface temperature (SST) data are used in the Northwest Pacific Ocean from August to November of 1998 to 2004, the SST preferences of O. bartramii corresponding to high values of catch per fishing day (CPUE) are determined and monthly potential habitats are predicted using a histogram analysis of the SST data. The possible changes in the potential habitats of O. bartramii in the Northwest Pacific Ocean are estimated under four climate change scenarios based on the Fourth Assessment Report (AR4) of the Intergovernmental Panel on Climate Change, i.e., 0.5, 1, 2 and 4°C increases in the SST because of the climate change. The results reveal an obvious poleward shift of the potential habitats of O. bartramii in the Northwest Pacific Ocean. Key words: Ommastrephes bartramii, sea surface temperature increase, potential habitat, Northwest Pacific Ocean Citation: Xu Jie, Chen Xinjun, Chen Yong, Ding Qi, Tian Siquan. 2016. The effect of sea surface temperature increase on the potential habitat of Ommastrephes bartramii in the Northwest Pacific Ocean. Acta Oceanologica Sinica, 35(2): 109–116, doi: 10.1007/s13131-015-0782-9
1 Introduction Ommastrephes bartramii is a short-lived ecological opportunist which generally have a life-span of about one year (Anderson and Rodhouse, 2001). Its official common name is the “red flying squid” (Turgeon et al., 1998), but it is frequently referred to in the literature as the “neon flying squid” (Bower and Ichii, 2005). It is a large oceanic squid distributed in temperate and subtropical waters of the Pacific, Indian and
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