【摘要】 本文根据闽南、台浅渔场1987～1995年间灯围渔业逐年各月生产统计资料,以及渔获物组成、生殖群体结构和幼鱼发生量对中上层鱼类进行监测和研究。结果表明,80年代末期以来,福建闽南地区灯围作业船组不断减少,但平均单产逐年上升,从而保持了渔业质量在下降中相对稳定。中上层鱼类种群结构非常稳定,蓝圆鲹和金色小沙丁鱼一直是最重要的渔获对象,占灯围产量约2/3。其生殖群体几乎是一成不变,该两个鱼种叉长优势组均为180～200mm,各占60～80％,1龄鱼补充群体数量雄厚,且其幼鱼发生量连年增长,闽中、闽东沿海小型灯围和夏缯等作业夏汛产量逐年迅速上升,由此认为,90年代以来,闽南、台浅渔场中上层鱼类资源利用不足,建议扶持灯围作业,加大对中上层鱼类资源的开发力度。更多还原

【Abstract】 Based on the operating statistics by months, the composition of catch, the structure of spawning population and the occurrence of young fish in the purse seine fisheries with light attraction on the Minnan - Taiwan Bank Fishing Ground from 1987 through 1995, the pelagic fish resources were monitored and studied. The results showed that the number of purse seiners with light fishing continued to reduce from the late 1980s, but the average yield rose year after year, thus the yield remained relatively stable. The structure of pelagic fish stock was very stable. Round scad, Decapterus maruadsi, and round sardinella, Sardinella aurita, were the most important target species, which accounted for about two -thirds of the yield. The structure of spawning stock almost remained unchanged. The fork length groups of both species were dominated by 180 - 200mm, each representing 60-80% of the fork length groups. The recuitment of age 1 was very strong, and the stocks of young fish continued to increase. The yield of small light purse seining and lift netting off Minzhong and Mindong in summer season increased rapidly. It can be considered that the pelagic fish resources have been underutilized since the 1990s and the suggestion to support the development of light purse seining and the increase of ulilization of pelagics were herein proposed.更多还原