摘要
根据1997年12月到1999年6月在南海北部陆架区进行1a的4个季度共9个航次的底拖网渔业资源调查的资料,采用统计分析的方法分析了南海北部陆架区蓝圆Decapterusmaruadsi性腺成熟度的组成及分布、季节变化和水深变化。结果表明,南海北部陆架区海域蓝圆的产卵场位于海南岛东部近岸海区和北部湾湾口海区;产卵期主要集中在春季,和历史资料相比产卵期有明显缩短;产卵水深增加,有外移的趋向。
Based on the fishery resources investigation data of bottom trawl in the northern South China Sea in nine cruises for four seasons from December 1997 to June 1999, the individual composition and distribution of gonadal maturity of Decapterus maruadsi and their variations with season and water depth were statistically analyzed. The results indicated that the spawning ground ranges from the eastern inshore waters of Hainan Island to the Beibu Gulf mouth. The spawning period, mainly in spring, has obviously shortened compared with historical data. The present water depth of spawning is deeper than historical one, and the spawning ground has a tendency to move towards outer sea.
出处
《热带海洋学报》
CAS
CSCD
北大核心
2003年第6期22-28,共7页
Journal of Tropical Oceanography
基金
九五"国家海洋勘测专项(126 02 01 03)
