长江口南部水域春、秋季鱼类群落结构比较
Q178.1; 为探明长江口南部水域鱼类群落结构,2020年4月(春季)与9月(秋季)在长江口北港、北槽、南槽水道共设置12个站位点,采用单囊拖网(最小网目25 mm)进行了2个航次渔业资源调查.计算资源密度、相对重要性指数、α-多样性指数,并进行多因素回归分析、典范对应分析(Canonical correspondence analysis,CCA),以判定春秋季群落时空变化规律与环境因子对鱼类分布的影响.本研究共采集到鱼类49种,隶属16目25科41属,均为暖温及暖水性鱼类,以河口种居多,狭盐性鱼类较少并呈区域分布.春季尾数资源密度高于秋季,而秋季质量资源密度高于春季.凤鲚(Coilia...
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| Published in | 上海海洋大学学报 Vol. 33; no. 1; pp. 135 - 149 |
|---|---|
| Main Authors | , , , |
| Format | Journal Article |
| Language | Chinese |
| Published |
上海海洋大学环境DNA技术与水生态健康评估工程中心,上海 201306%上海艾利维水环境技术有限公司,上海 200131%上海海洋大学环境DNA技术与水生态健康评估工程中心,上海 201306
2024
上海海洋大学海洋动物系统分类与进化上海高校重点实验室,上海 201306 |
| Subjects | |
| Online Access | Get full text |
| ISSN | 1674-5566 |
| DOI | 10.12024/jsou.20230404152 |
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| Abstract | Q178.1; 为探明长江口南部水域鱼类群落结构,2020年4月(春季)与9月(秋季)在长江口北港、北槽、南槽水道共设置12个站位点,采用单囊拖网(最小网目25 mm)进行了2个航次渔业资源调查.计算资源密度、相对重要性指数、α-多样性指数,并进行多因素回归分析、典范对应分析(Canonical correspondence analysis,CCA),以判定春秋季群落时空变化规律与环境因子对鱼类分布的影响.本研究共采集到鱼类49种,隶属16目25科41属,均为暖温及暖水性鱼类,以河口种居多,狭盐性鱼类较少并呈区域分布.春季尾数资源密度高于秋季,而秋季质量资源密度高于春季.凤鲚(Coilia mystus)、刀鲚(Coilia nasus)、棘头梅童鱼(Collichthys lucidus)、(鱼免)(Miichthys miiuy)在两个季节中均为优势种.春季,(鱼免)的尾数资源密度对总密度贡献率最高,且在各物种尾数资源密度中对总密度贡献率影响最显著;秋季,龙头鱼(Harpadon nehereus)的尾数资源密度贡献率最高,但刀鲚的尾数资源密度影响最显著.尾数及质量多样性指数结果显示秋季的Shannon-Winner多样性指数(H')、Pielou均匀度指数(J')、Margalef种类丰富度指数(D')均高于春季,而春季Simpson单纯度指数(C')平均值较高.研究水域内水面表层盐温受多种动态因素影响,存在季节性变化,资源密度平面分布揭示出许多类群有趋温、趋盐的生活习性. |
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| AbstractList | Q178.1; 为探明长江口南部水域鱼类群落结构,2020年4月(春季)与9月(秋季)在长江口北港、北槽、南槽水道共设置12个站位点,采用单囊拖网(最小网目25 mm)进行了2个航次渔业资源调查.计算资源密度、相对重要性指数、α-多样性指数,并进行多因素回归分析、典范对应分析(Canonical correspondence analysis,CCA),以判定春秋季群落时空变化规律与环境因子对鱼类分布的影响.本研究共采集到鱼类49种,隶属16目25科41属,均为暖温及暖水性鱼类,以河口种居多,狭盐性鱼类较少并呈区域分布.春季尾数资源密度高于秋季,而秋季质量资源密度高于春季.凤鲚(Coilia mystus)、刀鲚(Coilia nasus)、棘头梅童鱼(Collichthys lucidus)、(鱼免)(Miichthys miiuy)在两个季节中均为优势种.春季,(鱼免)的尾数资源密度对总密度贡献率最高,且在各物种尾数资源密度中对总密度贡献率影响最显著;秋季,龙头鱼(Harpadon nehereus)的尾数资源密度贡献率最高,但刀鲚的尾数资源密度影响最显著.尾数及质量多样性指数结果显示秋季的Shannon-Winner多样性指数(H')、Pielou均匀度指数(J')、Margalef种类丰富度指数(D')均高于春季,而春季Simpson单纯度指数(C')平均值较高.研究水域内水面表层盐温受多种动态因素影响,存在季节性变化,资源密度平面分布揭示出许多类群有趋温、趋盐的生活习性. |
| Abstract_FL | In order to ascertain the fish community structure in the southern waters of the Yangtze River Estuary,12 stations were set up in the North Port,the North Channel and the South Channel of the Yangtze River Estuary in April(spring)and September(autumn)of 2020,and two voyages of fishery resource surveys were conducted using single bag trawls(minimum mesh size 25 mm).By calculating individual,weight resource density,relative importance index,α-diversity index,combined with multiple factor regression analysis and canonical correspondence analysis(CCA),we could determine the spatio-temporal change rule of the community and the impact of environmental factors on the distribution.In this study,49 species of fish were collected,belonging to 16 orders,25 families and 41 genera.All of them are warm temperature and warm water fish.The majority of them are estuarine fish,while the narrow salt fish are less and distributed regionally.The resource density in spring is higher than that in autumn,while the weight resource density in autumn is higher than that in spring.Coilia mystus,Coilia nasus,Collichthys lucidus and Miichthys miiuy were dominant species in both seasons.In spring,Miichthys miiuy's individual resource density has the highest contribution rate to the total density and the most significant impact.In autumn,the contribution rate of the individual resource density of Harpadon nehereus is the highest,but the influence of the individual resource density of Coilia nasus is the most significant.The results of individual and weight diversity index showed that H',J'and D'in autumn were higher than those in spring,while the average value of C'in spring was higher.The surface salt temperature of the water surface in the study area is affected by many dynamic factors and there is a large seasonal change.The resource density plane distribution map and the ranking map reveal that certain groups have a life habit of tending to temperature and salt. |
| Author | 施利燕 赵路路 钟俊生 李诗佳 |
| AuthorAffiliation | 上海海洋大学环境DNA技术与水生态健康评估工程中心,上海 201306%上海艾利维水环境技术有限公司,上海 200131%上海海洋大学环境DNA技术与水生态健康评估工程中心,上海 201306;上海海洋大学海洋动物系统分类与进化上海高校重点实验室,上海 201306 |
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| Author_FL | ZHAO Lulu LI Shijia SHI Liyan ZHONG Junsheng |
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| Copyright | Copyright © Wanfang Data Co. Ltd. All Rights Reserved. |
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| DocumentTitle_FL | Comparative study on fish community structure in spring and autumn in the southern waters of the Yangtze River Estuary |
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| Keywords | diversity analysis 多样性分析 Yangtze River Estuary fish communities 长江口 鱼类群落 资源密度 resource density |
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| Publisher | 上海海洋大学环境DNA技术与水生态健康评估工程中心,上海 201306%上海艾利维水环境技术有限公司,上海 200131%上海海洋大学环境DNA技术与水生态健康评估工程中心,上海 201306 上海海洋大学海洋动物系统分类与进化上海高校重点实验室,上海 201306 |
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| Title | 长江口南部水域春、秋季鱼类群落结构比较 |
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