广东海洋大学学报
廣東海洋大學學報
엄동해양대학학보
JOURNAL OF GUANGDONG OCEAN UNIVERSITY
2015年
4期
93-98
,共6页
西北太平洋%柔鱼%海面高度%洄游路径%产量重心
西北太平洋%柔魚%海麵高度%洄遊路徑%產量重心
서북태평양%유어%해면고도%회유로경%산량중심
Northwest Pacific Ocean%Ommastrephes bartramii%sea surface height%migration processes%catch gravity
根据2012年7—11月(1—19周)我国鱿钓船在西北太平洋鱿钓作业数据,结合遥感获得的海面高度数据,分析了以周为时间单位的柔鱼产量重心空间分布及其规律,结果表明:第1—7周柔鱼产量重心主要集中在海面高度距平值 SSHA>0的海域,第8—11周柔鱼产量重心的优势范围同时包含 SSHA>0及 SSHA<0的海域,第12—14周主要集中在 SSHA<0的海域,第15—19周集中 SSHA>0的海域;7—11月西北太平洋柔鱼洄游过程分布在不同海面高度的海域中,且海面高度特征值差异明显,这可能与黑潮延伸区海洋锋面、上升流等活动剧烈有关。
根據2012年7—11月(1—19週)我國魷釣船在西北太平洋魷釣作業數據,結閤遙感穫得的海麵高度數據,分析瞭以週為時間單位的柔魚產量重心空間分佈及其規律,結果錶明:第1—7週柔魚產量重心主要集中在海麵高度距平值 SSHA>0的海域,第8—11週柔魚產量重心的優勢範圍同時包含 SSHA>0及 SSHA<0的海域,第12—14週主要集中在 SSHA<0的海域,第15—19週集中 SSHA>0的海域;7—11月西北太平洋柔魚洄遊過程分佈在不同海麵高度的海域中,且海麵高度特徵值差異明顯,這可能與黑潮延伸區海洋鋒麵、上升流等活動劇烈有關。
근거2012년7—11월(1—19주)아국우조선재서북태평양우조작업수거,결합요감획득적해면고도수거,분석료이주위시간단위적유어산량중심공간분포급기규률,결과표명:제1—7주유어산량중심주요집중재해면고도거평치 SSHA>0적해역,제8—11주유어산량중심적우세범위동시포함 SSHA>0급 SSHA<0적해역,제12—14주주요집중재 SSHA<0적해역,제15—19주집중 SSHA>0적해역;7—11월서북태평양유어회유과정분포재불동해면고도적해역중,차해면고도특정치차이명현,저가능여흑조연신구해양봉면、상승류등활동극렬유관。
Ommastrephes bartramii is one of the most important commercial species in the morthwest Pacific Ocean, and is also the fishing target for Chinese squid jigging fleets. By comparing the relationship between different yield distribution of Ommastrephes bartramii and sea surface height anomaly (SSHA) during the migratory process, the main fishing ground can be forecast based on the data of sea surface height. On the basis of fishing data of Chinese fleets from July to November in 2012, the migration rules of fishing ground can be obtained by using every week’s catch gravity. The result indicates that the main yield is distributed where the value SSHA is more than 0 from 1th to 7th weeks, the main yield is distributed where the value of SSHA is more than 0 and less than 0 from 8th to 11th weeks, the main catch is distributed in the areas with SSHA < 0 from 12th to 14th weeks, and the main yield is also distributed in the fishing ground with SSHA > 0 during 15th to 19th weeks. The obviously difference of temporal and spatial distribution of squid resources in SSHA is related to violent activities of ocean front in the Kuroshio Extension Region.