摘要
根据１９８７～１９９０年间在台湾以北海域进行的６个航次的调查资料，对该海域浮游桡足类数量分布作了探讨，结果表明，本区浮游桡足类丰度在春季最高，冬季最低，夏、秋季介于中间；黑潮锋内侧的桡足类丰度一般高于黑潮锋外侧，较高丰度区的分布具夏季最向外海、冬季最靠近岸、其他两季居中的趋势，这与黑潮锋位的季节摆动趋势基本相一致；浮游桡足类丰度的较高值区一般出现在不同水系的交汇区，尤其是黑潮次表层水涌升域的近岸边缘侧，而在黑潮次表层水的主水体中，因溶解氧含量低等因素，其丰度一般均较低；浮游桡足类丰度垂直分布趋势为随水深增加而减低，生物本身昼夜垂直移动规律可能是局部区域产生异常分布的原因之一．
Based on the investigation materials of 6 cruises in the waters north of Taiwan, China from 1987～1990, the abundance distribution chalactedstics of planktonic copepods are discussed. The results show that the highest abundance of copepods occurs in spring andthe lowest one in winter, while the abundance in summer and auturmn is between the above two seasons. The copepod abundance in inside ofthe Kuroshio front is higher than that in outside of the front. There is a distribution tendency that higher abundance occurs in outshore area in outshore area insummer and in nearshore area in winter, which corresponds with the trend of seasonal weings of the Kuroshio front. The higher copepod abun dance appears generally in mixed areas of various water masses, especially in nearshore side of upwelling of the Kuroshio subsurface water.However, in the Kuroshio subsurface main water, the abundance is few because of some factors such as low concentration of dissolved oxygen and so on. The Vertical distribution trend is that the copepod abundance decreases with increase of depth, and the diurnal vertical migrationregularities of some species are probably the one of reasons that cause the abnormal distributions in some local waters.
出处
《海洋学报》
CAS
CSCD
北大核心
1999年第4期78-86,共9页
基金
国家自然科学基金!49576275
关键词
台湾以北海域
浮游桡足类
丰度
生物海洋学
Waters north of Taiwan Province of China, planktonic copepods, abundance
