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厄尔尼诺-南方涛动现象(EL Ni o Southern Oscillation)是引起全球气候变化的最强烈的海-气相互作用现象,对世界渔业生产具有重要影响。本研究利用1982~2001年Ni o 3.4区海表温度与中西太平洋(20°N~20°S、120°E~150°W)鲣鱼围网单位捕捞努力量渔获量经度重心的关系,就厄尔尼诺-南方涛动现象对中西太平洋鲣鱼围网渔场变动的影响进行分析研究。结果表明,厄尔尼诺-南方涛动现象对中西太平洋鲣鱼围网渔场的空间分布有显著影响,厄尔尼诺发生时,鲣鱼围网单位捕捞努力量渔获量经度重心随着暖池的东扩而东移,拉尼娜发生时则随着暖池向西收缩而西移。同时,Ni o 3.4区海表温度与鲣鱼围网单位捕捞努力量渔获量经度重心有显著相关关系(Pearson相关系数r=0.186,P<0.01),因此,可将Ni o 3.4区海表温度作为预报、预测中西太平洋鲣鱼围网渔场位置的一个重要指标。
El Niño Southern Oscillation is the most intense sea-air interaction that causes global climate change and has a significant impact on world fishery production. In this study, we used the relationship between the sea surface temperature in Ni o 3.4 and the longitude center of gravity of fishing effort in the purse seine purse seine during the period from 1982 to 2001 in the central and western Pacific Ocean (20 ° N ~ 20 ° S, 120 ° E ~ 150 ° W) The impact of the El Ni --Southern Oscillation on the changes of catches of catfish seine in the Western and Central Pacific Ocean was analyzed. The results show that El Niño-Southern Oscillation has a significant effect on the spatial distribution of the catfish seine fisheries in the Western and Central Pacific Ocean. At El Niño, the longitude center of catches of the catches of the catfish Purse seine is decreasing with the eastward expansion of the warm pool When La Niña took place, it moved westward as the warm pool shrank westward. At the same time, the sea surface temperature in Ni o 3.4 is significantly correlated with the longitude center of catch of the catfish seine net (Pearson correlation coefficient r = 0.186, P <0.01). Therefore, Temperature is used as a predictor to predict the location of catfish seine fisheries in the Western and Central Pacific Ocean.