水产学报2018，Vol.42Issue(5)：694-703,10.DOI:10.11964/jfc.20170410787
带鱼保护区春秋季鱼类群落特征及与环境因子的关系
Fish community structure and its relationship with environmental factors in the Nature Reserve of Trichiurus japonicus
摘要
Abstract
The fish community structure and its relationships with the environmental factors in the Nature Reserve of Trichiurus japonicus were studied based on the data collected from bottom trawl surveys in spring and autumn 2014 by using non-metric multi-dimensional scaling (NMDS), canonical correspondence analysis (CCA) and clas-sification and regression tree (CART). In spring, a total of 75 fish species were sampled in the survey, belonging to 63 genera, 49 families, and 14 orders. In autumn, a total of 78 fish species were captured, belonging to 64 genera, 50 families, and 15 orders. Spatial structure of fish assemblage in spring and autumn could be classified into two groups. ANOSIM (analysis of similarity) indicated that the fish species composition varied significantly between two groups in two seasons. The canonical correspondence analysis (CCA) suggested that the main environmental factors affecting the spatial distribution of fish assemblage in spring and autumn were water temperature, salinity, depth and zooplankton. The average values of diversity index and richness index were 1.65±0.60 and 2.46±0.90 separately in spring, while the average values of diversity index and richness index were 1.42±0.53 and 1.89±0.60 separately in autumn. The classification and regression tree (CART) indicated that the diversity and richness index in spring and autumn were mainly affected by Chl.a, DO, depth, pH and zooplankton (euphausiid and planktonic larvae). The main factors affecting the diversity index were water temperature, depth and salinity in autumn, while the main factors affecting the richness index were water temperature and depth.关键词
带鱼/保护区/鱼类群落/群落多样性/非度量多维标度/典范对应分析/分Key words
Trichiurus japonicus/nature reserve/fish community/community diversity/multi-dimensional scal-ing/canonical correspondence analysis/classification and regression tree分类
农业科技引用本文复制引用
胡翠林,张洪亮,张亚洲,潘国良,徐开达,毕远新,梁君,王好学,周永东..带鱼保护区春秋季鱼类群落特征及与环境因子的关系[J].水产学报,2018,42(5):694-703,10.基金项目
浙江省海洋与渔业局项目[浙海渔计(2013)149号] （2013）
浙江省科技计划项目(2017C32031) （2017C32031）
浙江海洋大学博士启动基金(22135011015) （22135011015）
Ocean and Fisheries Bureau Project of Zhejiang Province(Zhejiang Ocean Fishery Project[2013]no.149) （Zhejiang Ocean Fishery Project[2013]no.149）
Science and Technology Planning Project of Zhejiang Province(2017C32031) （2017C32031）
PhD Initial Funding of Zhejiang Ocean University(22135011015) （22135011015）
