瓯江口春秋季虾蟹类群落结构
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浙江海洋大学 水产学院,杭州希澳环境科技有限公司,浙江海洋大学 水产学院,杭州希澳环境科技有限公司,浙江海洋大学 水产学院,浙江海洋大学 水产学院,浙江海洋大学 水产学院,浙江海洋大学 水产学院

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Q958.1

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国家自然科学基金(31270527)


Community structure of shrimps and crabs in spring and autumn in Oujiang River Estuary
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Fisheries College of Zhejiang ocean university,Zhoushan,Hangzhou xiao environmental technology co LTD,Hangzhou,Fisheries College of Zhejiang ocean university,Zhoushan,Hangzhou xiao environmental technology co LTD,Hangzhou,Fisheries College of Zhejiang ocean university,Zhoushan,Fisheries College of Zhejiang ocean university,Zhoushan,Fisheries College of Zhejiang ocean university,Zhoushan,Fisheries College of Zhejiang ocean university,Zhoushan

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    摘要:

    2013年5月(春)、2013年10月(秋)在温州瓯江口海域利用底拖网进行了渔业资源调查,共设12个站位。根据各站位扫海面积和逃逸系数对调查数据进行标准化处理。利用相对重要性指标(IRI)、等级聚类(CLUSTER)、非度量多维标序(non-metric multidimensional scaling,NMDS)、ABC曲线等方法,对瓯江口海域的虾蟹类群落结构、空间分布和稳定性进行了分析,旨在研究瓯江口春秋季群落结构的不同之处。结果显示:两次调查共鉴定虾蟹类25种,隶属于11科16属,春季18种,秋季23种;春秋季河口区物种数量较低,近岸区和岛礁区较高;春季优势种为哈氏仿对虾(Parapenaeopsis hardwickii)、中国毛虾(Acetes chinensis)、三疣梭子蟹(Portunus trituberculatus)3种;秋季优势种为脊尾白虾(Exopalaemon carinicauda)、中华管鞭虾(Solenocera crassicornis)、三疣梭子蟹(Portunus trituberculatus)、日本蟳(Charybdis japonica)、锯缘青蟹(Scylla serrata)5种;生态类型显示虾蟹类以广温低盐和广温广盐种类为主,未见冷水种。聚类分析将春、秋季站位均分为3个群落,通过非度量多维标度分析(NMDS)显示春秋季聚类结果可信(0.05 ≤ Stress<0.1)。相似性分析(analysis of similarities,ANOSIM)结果表明春秋季各群落间差异显著且显著性水平均小于0.05,结果可被接受。SIMPER(similarity of percentage)分析显示,春秋季各群落间的差异主要由特征种的差异性所决定。ABC曲线分析结果与春秋季实际情况相符:春季W<0,群落组成以小型、低质种类为主;秋季W>0,群落组成以成体居多。

    Abstract:

    In May 2013 (spring) and October 2013 (autumn), fishery resources were surveyed using a stern-trawling shrimp net in the Oujiang Estuary area of Wenzhou. A total of 12 stations were established. The survey data were standardized according to the swept area and escape coefficient at each station. Using the methods of relative importance index(IRI), hierarchical clustering(CLUSTER), non-metric multidimensional scaling(NMDS), ABC curve, etc., the community structure, spatial distribution and stability of shrimps and crabs in the waters of Oujiang Estuary were analyzed. The aim is to study the differences in the community structure of the spring and autumn of the Oujiang Estuary. The results showed that:The two surveys identified 25 species of shrimps and crabs, belonging to 11 families and 16 genera, 18 species in spring and 23 species in autumn; The number of species in the estuary area was lower in spring and autumn, and the nearshore and island reef areas were higher; There are three dominant species of Parapenaeopsis hardwickii, Acete schinensis, and Portunus trituberculatus in spring,and five dominant species of Exopalaemon carinicauda, Solenocera crassicornis, Portunus trituberculatus, Charybdis japonica and Scylla serrata in autumn. The ecological types show that shrimps and crabs are dominated by wide temperature, low salinity and wide temperature and wide salt species, and no cold water species were found. Cluster analysis divided the stations in spring and autumn into three communities. Non-metric multidimensional scaling (NMDS) shows that the clustering results in the spring and autumn are credible (0.05 ≤ Stress<0.1).The analysis of similarity (ANOSIM) showed that the differences between the communities in spring and autumn were significant and the significance levels were less than 0.05, and the results were acceptable. The analysis of SIMPER shows that the differences between the communities in spring and autumn are mainly determined by the difference of dominant species. The results of ABC curve analysis were in accordance with the actual conditions in spring and autumn. In spring, W<0,the community composition was dominated by small, low-quality species; In the autumn, W>0, the community composition was dominated by adults.

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颜文超,宋伟华,俞存根,周青松,郑基,刘惠,邓小艳,张平.瓯江口春秋季虾蟹类群落结构[J].上海海洋大学学报,2019,28(1):134-144.
YAN Wenchao, SONG Weihua, YU Cungen, ZHOU Qingsong, ZHENG Ji, LIU Hui, DENG Xiaoyan, ZHANG Ping. Community structure of shrimps and crabs in spring and autumn in Oujiang River Estuary[J]. Journal of Shanghai Ocean University,2019,28(1):134-144.

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  • 收稿日期:2018-06-14
  • 最后修改日期:2018-11-19
  • 录用日期:2018-09-30
  • 在线发布日期: 2019-01-21
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