摘要
本文根据1997年6月～7月北太平洋（16°E～170°E）海域柔鱼探捕调查的资料，对渔场形成的海洋环境条件进行了初步分析。160°E～170°E海域的大型柔鱼渔场主要由亲潮策3和第4分支与黑潮的第4和第5分支交汇形成，特别是在深层（100米水层）的暖水域前端形成。其表层水温一般为11～13°，100米水层水温约为9～10℃。其中167°E～170°E海域的渔场较为稳定，可供北太平洋鱿钓船的前期生产。中心渔场形成时常有浮游生物层。浮游生物层越厚实，渔获量越高，但有关浮游生物层的形成原因需作进一步的研究与探讨。
Based on the investigation results of detecting fishing in North Paclfic waters (160°E - 170°E) during June and July 1997, the marine environmental conditions of forming fishing ground are initially analysed. In these areas, the fishing grounds are mainly located at the mingling areas of the third and fourth branches of Kuroshio Current and the fourth and fifth branches of Oyashio Current, especially at the waters where is distributed in the front of warm current at 100 meter water layer. In the fishing ground, its surface water temperature is 11 - 13℃, and the temperature of 100 meter water layer is 9 - 10℃. The fishing ground located in the waters between 167° E and 170°E is relatively stability, which may be considered as one important fishing ground during the early fishing period. Also, the main fishing ground often occurs together with plankton layer, and the more dense plankton layer, the more catch. The reasons for forming plankton layer may be further carried out.
出处
《上海水产大学学报》
CSCD
1999年第3期197-201,共5页
Journal of Shanghai Fisheries University
关键词
北太平洋
柔鱼
渔场
浮游生物层
North Pacific, Ommastrephe bartrami, fishing ground,plankton layer
