东海海樽类生态类群统计分析  

Statistical analysis to ecological group of Thaliacea in the East China Sea

作　　者：徐兆礼[1] 孙军[2] 林茂[3] 

机构地区：[1]中国水产科学研究院东海水产研究所农业部海洋与河口渔业重点开放实验室,上海200090 [2]中国科学院海洋研究所,青岛266071 [3]国家海洋局第三海洋研究所,厦门361005

出　　处：《生态学报》2008年第11期5698-5705,共8页Acta Ecologica Sinica

基　　金：国家自然科学基金重大研究计划资助项目(No.90511005);中国近海海洋综合调查与评价(908)专项资助项目(908-02-01-03)~~

摘　　要：依据1997～2000年在东海23°30′～33°00′N、118°30′～128°00′E4个季节的海洋调查资料,采用曲线拟合,构造数学模型和极大值分析等数学方法,研究海樽类最适温度和盐度,籍此进一步分析其生态类群。结果表明,Yield Density模型可以应用于大多数海樽类最适温度和盐度的统计推断。依据物种分布的最适温度和盐度值,并参考其地理和季节分布特征,认为梭形纽鳃樽(Salpa fusiformis)属暖温带外海种;羽环纽鳃樽长柄亚种(Cyclosalpa pinnata polae)和安纽鳃樽(Ritteriella amboinensis)为热带大洋种;双尾纽鳃樽东方亚种(Thalia decocratica orientalis)、小齿海樽(Doliolum denticulatum)和软拟海樽(Dolioetta.gegenbauri)等其余13种为亚热带外海种。海樽类多数物种可以作为水团的指示种。梭形纽鳃樽往往出现在沿岸水和外海水混合水团偏高盐水一侧。羽环纽鳃樽长柄亚种高丰度分布在台湾暖流控制的水域,是台湾暖流的指示种。双尾纽鳃樽东方亚种高丰度水域,能够较为准确地反映黑潮入侵陆架水团和沿岸水交汇的位置。Ecological adaptation and ecological group of Thaliacea were examined in the East China Sea （23°30＇- 33 °00＇ N, 118°30＇- 128°00＇E） , in relation to temperature and salinity. The data were collected in 4 surveys conducted from 1997 to 2000. The Yield Density Model was used to predict optimum temperature and salinity of water for Thaliaeea occupations. Furthermore, the optimum temperature （salinity）, average appearance temperature （salinity）, and scatter diagrams of temperature-abundance for the species of Thaliacea were used to predict the distribution of the species. Then coupling the biogeographieal information, the ecological group of Thaliacea were identified as follows ： Salpa fusiformis was thought as a offshore and temperate warm water species, Cyclosalpa pinnata polae and Ritteriella amboinensis are oceanic and tropical species, the other 13 species, Thalia decocratica orientalis, Doliolum denticulatum, Dolioetta gegenbauri, Weelia cylindrica, Cyclosalpa pinnata, Thalia decocratica, Ritteriella picteti, Brooksia rostrata, Cyclosalpa pinnata f. quadriluminis, Doliolum nationalis, Thalia rhomboides, Cyclosalpa floridana and Pyrosoma atlanticum are offshore and subtropical water species. Salpa fusiformis was common found in side of higher salinity （32.06 -34.77 ） where East China Sea Coast Current met and ECS Mixed water mass. Cyclosalpa pinnata polae tends to distribute along the waters between 100m and 200m isobath, where the Taiwan Warm Current locates so that the species can acts as an indicator species of the Taiwan Warm Current. The high abundance areas of Thalia decocratica orientalis can indicate the location where the coastal water mixed with Kuroshio when it intrudes into continental shelf water in the East China Sea.

关 键 词：东海 浮游动物 海樽类 生态类群 

分 类 号：Q958.8[生物学—动物学]