| 摘要: |
| 根据2011年春季(4月、5月与6月)对浙江南部近海进行的共3个航次的底拖网渔业资源调查资料, 对该海域的鱼类多样性进行了分析。结果表明: 所捕获的90种鱼分别隶属于2纲15目51科75属; 暖水性鱼类无论在种类数量还是生物量与尾数密度方面均居主导地位; 所有优势种均为暖水性鱼类, 其中矛尾虎鱼为春季三个月的共同优势种; 生物量、尾数密度与丰富度指数(D)5 月与6 月的差异均极显著(P<0.01); 多样性指数(H′)与水深、底温与底盐三者之间均为线性正相关(P< 0.05), 而与生物量呈线性负相关(P<0.05), 这表明浙江南部近海春季鱼类的多样性(H′)随水深、底温与底盐的增加而增高, 但同时却随生物量的增加而降低。 |
| 关键词: 浙江南部近海, 春季, 鱼类, 多样性 |
| DOI：10.11693/hyhz201301019019 |
| 分类号: |
| 基金项目:国家科技支撑计划项目, 2007BAD43B01 号, 2007BAD43B02 号; 浙江省海洋与渔业局项目, 浙海渔计(2010)205号; 浙江省科技计划项目, 2011F10001 号 |
附件 |
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| DIVERSITY ANALYSIS OF FISH IN THE COASTAL AREA OF ZHEJIANG DURING SPRING |
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ZHANG Hong-Liang1,2,3, SONG Zhi-Qi4, PAN Guo-Liang1,2,3, CHEN Feng1,2,3, ZHOU Yong-Dong1,2,3
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1.Marine Fisheries Research Institute of Zhejiang Province;2.Scientific Observing and Experimental Station of Fishery Resources for Key Fishing Grounds, Ministry of Agriculture, P R China;3.Key Laboratory for Technology Research on Sustainable Utilization of Marine Fishery Resource, Zhejiang Provinc;4.Pinghu Fishery Technical Extension Center
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| Abstract: |
| The species diversity of fish in the Coastal area of South Zhejiang was analyzed based on the data collected during spring (from April, May to June) in 2011 by bottom trawl. There are four methods including sweep area method, biodiversity analysis, analysis of variance (ANOVA) and bivariate correlations were used. The results showed that: A total of 90 species of fish were caught by bottom trawl, which belonged to 75 genera, of 51 families, 15 orders and 2 classes. For percentage of number of species, biomass and number abundance density, warm water species all occupied the dominant position. All the dominant species were warm water species, among them, Chaeturichthys stigmatias was the dominant species in all the survey months. Both the biomass and the number abundance density in June were the highest, but opposite in May. The biomass, number abundance density and Margalef richness index (D) in June was especially different with those in May (P<0.01), respectively. Significantly linear positive correlation existed between the Shannon-Wiener diversity index (H′) and sea water depth (P<0.05), and same to sea bottom water temperate and salinity (P<0.05), otherwise, Significantly linear negative correlation existed between the Shannon-Wiener diversity index (H′) and the biomass (P<0.05), which indicated that the Shannon-Wiener diversity index (H′) of fish in the Coastal area of South Zhejiang increased with the increasing of sea water depth, and same to sea bottom water temperate and salinity, but decreased with the increasing of the biomass. |
| Key words: The coastal area of south Zhejiang, Spring, Fish, Diversity |
