乐清湾海域真刺唇角水蚤在盐度梯度下的生态阈值研究
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摘要
基于2016年5月乐清湾海域的海洋调查资料,分析了浮游动物真刺唇角水蚤(Labidocera euchaeta)的优势度及其与海水盐度(S)的相关性,并利用高斯模型研究了在盐度梯度下真刺唇角水蚤丰度的生态阈值(Ecological Threshold,ET)。结果表明:真刺唇角水蚤是乐清湾海域春季浮游动物优势种之一,优势度为0. 061;其丰度与盐度呈极显著负相关关系(p <0. 01),盐度是影响真刺唇角水蚤水平分布的主要因素之一;其最适盐度值为21. 36,最适盐度生态阈值区间为[20. 17,22. 55],真刺唇角水蚤在盐度梯度下的生态阈值区间为[18. 99,23. 73]。此外,还探讨了盐度对真刺唇角水蚤生长的影响,以及此生态阈值研究在乐清湾海域资源环境承载能力监测预警中的作用。
Based on the oceanographic survey in Yueqing Bay in May 2016,the zooplankton dominant species and their relations with the salinity were studied. At the same time the ecological threshold of Labidocera euchaeta abundance on the salinity gradient was analyzed with the Gauss model. The results showed that the species Labidocera euchaeta,as a dominant species in spring in Yueqing Bay,had dominant index of 0. 061 and its abundance was significantly and negatively correlated with the salinity(p < 0. 01). Salinity is one of main factors affecting the horizontal distribution of the copepod. It is found that the optimal salinity is 21. 36 with threshold ranges from 20. 17 to22. 55. On the salinity gradient,the ecological threshold ranges from 18. 99 to 23. 73. In addition,the effect of salinity on the growth of Labidocera euchaeta and the role of ecological threshold are discussed for the monitoring and early warning of environment carrying capacity of Yueqing Bay.
Based on the oceanographic survey in Yueqing Bay in May 2016,the zooplankton dominant species and their relations with the salinity were studied. At the same time the ecological threshold of Labidocera euchaeta abundance on the salinity gradient was analyzed with the Gauss model. The results showed that the species Labidocera euchaeta,as a dominant species in spring in Yueqing Bay,had dominant index of 0. 061 and its abundance was significantly and negatively correlated with the salinity(p < 0. 01). Salinity is one of main factors affecting the horizontal distribution of the copepod. It is found that the optimal salinity is 21. 36 with threshold ranges from 20. 17 to22. 55. On the salinity gradient,the ecological threshold ranges from 18. 99 to 23. 73. In addition,the effect of salinity on the growth of Labidocera euchaeta and the role of ecological threshold are discussed for the monitoring and early warning of environment carrying capacity of Yueqing Bay.
引文
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[24]刘镇盛,王春生,张志南,等.乐清湾浮游动物的季节变动及摄食率[J].生态学报,2005,25(8):1 853-1 862.
[25]蔡德陵,李红燕,唐启升,等.黄东海生态系统食物网连续营养谱的建立:来自碳氮稳定同位素方法的结果[J].中国科学:生命科学,2005,35(2):123-130.
[26]黄华梅,谢健,陈绵润,等.基于资源环境承载力理论的海洋生态红线制度体系构建[J].生态经济,2017,33(9):174-179.
[27]杨旖祎,李轶,叶属峰.乐清湾盐度环境梯度下浮游植物生态阈值研究[J].海洋环境科学,2018,37(4):499-504.
[2]唐海萍,陈姣,薛海丽.生态阈值:概念、方法与研究展望[J].植物生态学报,2015,39(9):932-940.
[3]沈国英.海洋生态学[M]. 3版.北京:科学出版社,2010.
[4] HOLLING C S. Resilience and stability of ecological systems[J]. Annual Review of Ecology and Systematics,1973,4(1):1-2.
[5] KINZIG A P,RYAN P,ETIENNE M,et al. Resilience and regime shifts:assessing cascading effects[J]. Ecology and Society,2006,11(1):20.
[6] MAY R M. Thresholds and breakpoints in ecosystems with a multiplicity of stable states[J]. Nature,1977,269(5 628):471-477.
[7] SCHEFFER M,CARPENTER S,FOLEY J A,et al. Catastrophic shifts in ecosystems[J]. Nature,2001,413(6 856):591-595.
[8] MOUSSEAU L,LEFEVRE D,NARCY F,et al. A one-month study of the zooplankton community at a fixed station in the Ligurian Sea:the potential impact of the species composition on the mineralization of organic matter[J]. Biogeosciences Discussions,2009,6(1):995-1 019.
[9] MADIN L P,HORGAN E F,STEINBERG D K. Zooplankton at the Bermuda Atlantic Time-series Study(BATS)station:diel,seasonal and interannual variation in biomass,1994—1998[J]. Deep Sea Research Part II:Topical Studies in Oceanography,2001,48(8/9):2 063-2 082.
[10]王春生,陈兴群,刘镇盛.中国近海海洋:海洋生物与生态[M].北京:海洋出版社,2012.
[11] BI H S,SUN S,GAO S W,et al. The characteristics of zooplankton community in the Bohai SeaⅠ. species composition and community structure[J]. Acta Ecologica Sinica,2000,20(5):715-721.
[12] WANG K,ZHANG W C,WANG R,et al. The structure of zooplankton community in the cetral and southern part of the Bohai Sea,China,in Spring and Autumn[J]. Studia Marina Sinica,2002,44:34-42.
[13]陈洪举,刘光兴. 2006年夏季长江口及其邻近水域浮游动物的群落结构[J].北京师范大学学报(自然科学版),2009,45(4):393-398.
[14]孙松.中国区域海洋学:生物海洋学[M].北京:海洋出版社,2012.
[15]徐兆礼,高倩.长江口海域真刺唇角水蚤的分布及其对全球变暖的响应[J].应用生态学报,2009,20(5):1 196-1 201.
[16]徐兆礼,李云.长江口中华哲水蚤对不同温度和盐度的适应[C]//中国水产学会. 2008年中国水产学会学术年会论文摘要集.北京:中国水产学会,2008.
[17]杜明敏,刘镇盛,王春生,等.中国近海浮游动物群落结构及季节变化[J].生态学报,2013,33(17):5 407-5 418.
[18]崔莹,金显仕,张波梁,等.南黄海三种石首鱼类的食性[J].水产学报,2005,29(2):178-187.
[19]郭斌,张波,戴芳群,等.海州湾小黄鱼幼鱼和黄鲫幼鱼的食物竞争[J].渔业科学进展,2011,32(1):1-8.
[20]刘守海,徐兆礼.长江口和杭州湾凤鲚胃含物与海洋浮游动物的种类组成比较[J].生态学报,2011,31(8):2 263-2 271.
[21]国家海洋局.海洋监测规范第2部分:数据处理与分析质量控制:GB 17378. 2—2007[S].北京:中国标准出版社,2007.
[22]崔保山,贺强,赵欣胜.水盐环境梯度下翅碱蓬(Suaeda salsa)的生态阈值[J].生态学报,2008,28(4):1 408-1 418.
[23]邵倩文,刘镇盛,章菁,等.长江口及邻近海域浮游动物群落结构及季节变化[J].生态学报,2017,37(2):683-691.
[24]刘镇盛,王春生,张志南,等.乐清湾浮游动物的季节变动及摄食率[J].生态学报,2005,25(8):1 853-1 862.
[25]蔡德陵,李红燕,唐启升,等.黄东海生态系统食物网连续营养谱的建立:来自碳氮稳定同位素方法的结果[J].中国科学:生命科学,2005,35(2):123-130.
[26]黄华梅,谢健,陈绵润,等.基于资源环境承载力理论的海洋生态红线制度体系构建[J].生态经济,2017,33(9):174-179.
[27]杨旖祎,李轶,叶属峰.乐清湾盐度环境梯度下浮游植物生态阈值研究[J].海洋环境科学,2018,37(4):499-504.
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