摘要
用１９９１～１９９５年在胶州湾季度取样（２、５、８、１１月）所得的资料探讨胶州湾毛类组成、分布、数量变动以及生物多样性等生态特点。结果表明胶州湾多毛类组成以温带种和广温广布种为主，兼有广温热带种和冷水种；其平均生物量和栖息密度分别为５．１４ｇｍ－２、８２ｉｎｄｍ－２；湾内的生物多样性、栖息密度均高于湾口；湾内多毛类群落根据聚类分析和主成分分析可分成５种类型；过度捕捞菲律宾蛤仔（Ｒｕｄｉｔａｐｅｓｐｈｉｌｉｐｐｉｎａｒｕｍ）使夏季多毛类多样性偏低。多毛类的分布主要是受不同的底质类型的影响；数量变动主要是受水温的影响。
The polychaete fauna was studied at 10 stations in Jiaozhou Bay,with seasonally sampling in 1991～1995.The biomass,density and diversity were calculated.The polychaete fauna was divided into four groups:1 Eurythermiceurytopic species,2 Eurythermicwarm temeprature species,3 Eurythermictropical and subtropical species,4 Cold water species in north of China.The dominant species were eurythermiceurytopic species and eurythermicwarm temperature species.The average biomass and density were 5.14g.m-2 and 82 ind.m-2 respectively.The diversity and density in inlet were higher than the mouth and the outskirts of the bay due to different sediment type.Based on the cluster analysis and principal components analysis,the polychaete was divided into five types.The factor governing the distribution of polychaete was sediment.The biomass and density variability were mainly controlled by temperature,the highest in summer and the lowest in winter. The harvest of Ruditapes philippinarium led to a low diversity during summer.
出处
《生态学报》
CAS
CSCD
北大核心
1998年第1期63-68,共6页
Acta Ecologica Sinica
