长江流域资源与环境 >> 2013, Vol. 22 >> Issue (8): 1156-.

• 自然资源 • 上一篇    下一篇

2003~2010年长江下游两江段鱼类群落结构特征的年际变动

徐东坡|刘 凯|张敏莹|段金荣|周彦锋|施炜纲   

  1. (农业部长江下游渔业资源环境科学观测实验站|中国水产科学研究院内陆渔业生态环境和资源重点开放实验室|
    中国水产科学研究院淡水渔业研究中心|江苏 无锡 214081)
  • 出版日期:2013-09-20

INTERANNUAL VARIATION OF THE FISH COMMUNITY
COMPOSITION IN ANQING AND CHANGSHU SECTION 
IN THE LOWER REACHES OF THE CHANGJIANG RIVER

XU Dongpo1|LIU Kai1|ZHANG Minying1|DUAN Jinrong1|ZHOU Yanfeng1|SHI Weigang1[MZ)]   

  1. (1Scientific Observing and Experimental Station of Fishery Resources and Environment in the Lower Reaches of |Changjiang River|[JP]
    Ministry of Agriculture Key Laboratory of Ecological Environment and Resources of Inland Fisheries|
    Freshwater Fisheries Research Center|Chinese Academy of Fishery Sciences|Wuxi 214081|China)
  • Online:2013-09-20

摘要:

根据2003年3月~2010年3月长江下游安庆和常熟江段的定置网调查结果,应用多元统计分析方法对两江段鱼类群落结构的年际变化特征进行了描述分析。研究期内,安庆和常熟江段共出现鱼类67种,隶属12目22科50属。其中,安庆江段有50种,隶属6目11科34属,常熟江段有52种,隶属12目 21科44属,两江段均是鲤形目的物种数占绝对优势。安庆江段共出现9种优势种,出现次数最多的优势种为鲫和瓦氏黄颡鱼,都是5次,出现次数最少的优势种为[XCz1.tif;%85%85,JZ]、黄尾鲴、鳜,都是1次;常熟江段共出现11种优势种,每年都出现的优势种有鳊、鲢和鲫,仅一年为优势种的有铜鱼、鲤和贝氏[XCz1.tif;%85%85,JZ]。Simper分析表明安庆江段群落组成平均相似度为6147%,常熟江段群落组成平均相似度为7336%,安庆和常熟江段平均相异度为7684%,应用相似性分析检验得出安庆和常熟江段群落组成差异极显著

Abstract:

The fishery resource surveys were carried out by Set net in Anqing and Changshu section of the lower reaches of the Changjiang River from March 2003 to March 2010 According to the monitoring result,the dynamic state of fish community was described in this paper,and the variation of fish community structure was analyzed by the multivariate analysis There were 67 species which belong to 50 genera,22 families and 12 orders There were 50 species which belong to 34 genera,11 families and 6 orders in Anqing Section,while 52 species which belong to 44 genera,21 families and 12 orders in Changshu Section The species of Cypriniformes order occupied a dominant position in both Anqing and Changshu section,while the number of diadromous species from Changshu section was 15,which was more than that of Anqing section( 3 diadromous species).There were 9 dominant species occurred during seven years in Anqing section The most frequently dominant species were Carassius auratus and Pelteobagrus vachellii,which all occurred 5 times,while Hemiculter leucisculus, Xenocypris davidi and Siniperca chuatsi only occurred 1 time,respectively There were 11 dominant species occurred during seven years in Changshu section,among which Parabramis pekinensis,Hypophthalmichthys molitrix and Carassius auratus occurred every year,Coreius heterodon,Cyprinus carpio and Hemiculter bleekeri only occurred 1 time,respectively The analysis result of cluster analysis and nonmetric multidimensional scaling methods showed that the annual changes of the fish community structure of Changshu section was less than that of Anqing section,and the fish community structure were different in these two sections The similarity percentages analysis verified the conclusion It showed that the average similarity of the fish community composition was 6147% in Anqing section from March 2003 to March 2010,while it was 7336% in Changshu section,and the average dissimilaritiy of the fish community composition was 7684% between Anqing and Changshu section The analysis of similarities result showed that the annual compositions of fish community in Anqing section and Changshu section had highly significant difference The spring fishing moratorium policy have been put in place,and the larger scale of enhancement activities in which the main releasing species were silver carp and bighead carp have been taken continuously Therefore,the dominant position of silver carp and bighead carp from Changshu section increased year by year,but the situation of Anqing section had no change The reasons for this are as follows (1) The release number of silver carp and bighead carp in Anhui section was less than that in Jiangsu section (2) The different organism food level caused the difference of fishery resource density between 2 sections The community structure variance of Anhui and Jiangsu sections belonged to the internal community fluctuation,which had not yet reached the level of succession

No related articles found!
Viewed
Full text


Abstract

Cited

  Shared   
  Discussed   
[1] 陈振杰, 李满春, 刘永学. 基于GIS的桐庐县农村居民点空间格局研究[J]. 长江流域资源与环境, 2008, 17(2): 180 .
[2] 王 中,陈艳英. 三峡库区航运气象条件分析[J]. 长江流域资源与环境, 2008, 17(1): 79 .
[3] 张 健,陈 凤,濮励杰,彭补拙. 区域土壤质量对土地利用变化响应研究——以土壤氮元素为例[J]. 长江流域资源与环境, 2008, 17(1): 36 .
[4] 桑连海,陈 进. 长江流域的节水形势及发展方向[J]. 长江流域资源与环境, 2006, 15(1): 10 -13 .
[5] 叶闽,张立,. 健康长江水域生态指标体系初探[J]. 长江流域资源与环境, 2006, 15(Sup1): 72 -76 .
[6] 张慧杰,杨德国,危起伟,杜浩,张辉,陈细华,. 葛洲坝至古老背江段鱼类的水声学调查[J]. 长江流域资源与环境, 2007, 16(1): 86 -91 .
[7] 蔡银莺,张安录. 江汉平原农地保护的外部效益研究[J]. 长江流域资源与环境, 2008, 17(1): 98 .
[8] 王红娟,姜加虎,黄 群. 基于知识的洞庭湖湿地遥感分类方法[J]. 长江流域资源与环境, 2008, 17(3): 370 .
[9] 尹义星, 许有鹏, 陈莹. 太湖最高水位及其与气候变化、人类活动的关系[J]. 长江流域资源与环境, 2009, 18(7): 609 .
[10] 刘敏, 杨宏青, 向华, 许杨, 史瑞琴, 刘志雄, 高正旭. 湖北省2009年冬末连阴雨过程特点及影响分析[J]. 长江流域资源与环境, 2010, 19(7): 826 .