胶州湾大型底栖动物次级生产力  

Secondary productivity of macrozoobenthos in Jiaozhou Bay

作　　者：全秋梅 徐姗楠[1] 肖雅元[1] 李纯厚[1] QUAN Qiumei;XU Shannan;XIAO Yayuan;LI Chunhou(Key Laboratory of South China Sea Fishery Resources Exploitation&Utilization,Ministry of Agriculture and Rural Affairs,South China Sea Fisheries Research Institute,Chinese Academy of Fishery Sciences,Guangzhou 510300,China;College of Fisheries and Life Science,Shanghai Ocean University,Shanghai 201306,China)

机构地区：[1]中国水产科学研究院南海水产研究所,农业农村部南海渔业资源开发利用重点实验室,广东广州510300 [2]上海海洋大学水产与生命学院,上海201306

出　　处：《中国水产科学》2020年第4期414-426,共13页Journal of Fishery Sciences of China

基　　金：国家重点基础研究发展计划项目(2015CB452904);广东省科技计划项目(2019B121201001);中国水产科学研究院基本科研业务费专项(2020TD1b).

摘　　要：根据2016―2017年在胶州湾开展的大型底栖动物调查获得的资料,分析报道了胶州湾大型底栖动物次级生产力及其与环境的关系。结果表明,本次调查中胶州湾大型底栖动物年平均栖息密度为119.17 ind/m2,年平均生物量为20.57[g(去灰干重,AFDW)/m2],年平均次级生产力和P/B值分别为9.64[g(AFDW)/(m2·a)]和0.47/a;空间分布上,次级生产力在湾内北部的养殖区和湾口处较高,形成两处次级生产力高值区,向四周逐渐减小;在季节上,次级生产力为春季>冬季>夏季>秋季;环境因子与次级生产力的相关程度均不显著(P>0.05),在湾内养殖区的次级生产力与底质类型相关性较大,而湾外是溶解氧的含量影响较大;胶州湾海域次级生产力高于我国北方大部分海域,但P/B值较低,表明群落组成中个体较小、生命周期较短和新陈代谢快的物种所占比例少于其他海域。Based on the data obtained from four cruise investigations during 2016-2017,the secondary production and the P/B ratio of the macrobenthos in Jiaozhou Bay were analyzed using Brey’s empirical formula(first devised by Brey in 1990),and the relationship between environmental factors and secondary productivity was analyzed with Pearson’s correlation.The results showed that the annual mean abundance was 19.17 ind/m2,mean biomass in ash-free dry weight(AFDW)was 20.57 g/m2,mean secondary productivity in AFDW was 9.64 g/(m2·a),and the mean P/B ratio was 0.47/a.In terms of spatial distribution,sampling stations with high secondary productivity were mainly located in areas near aquaculture systems and coastal sea areas,highlighting these as high productivity centers.For seasonal distribu-tion,the seasonal variation of secondary productivity was spring>winter>summer>autumn.The correlation analysis indicated that the relationship between environmental factors and secondary productivity was not significant(P>0.05).The secondary productivity near the aquaculture area in the bay was closely correlated with sediment type,while being greatly correlated with dissolved oxygen outside the bay.Comparing the results of the present study with other similar studies,secondary productivity in Jiaozhou Bay was higher than that of most sea areas of North China,but the P/B ratio was lower.The results showed that species with small body size,short life and quick metabolism were accounted for less in the community composition of Jiaozhou Bay.

关 键 词：大型底栖生物 次级生产力 P/B 胶州湾 

分 类 号：S93[农业科学—渔业资源]