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作 者 ：徐兆礼,陈亚瞿

期 刊 ：生态学报 2005年 25卷 9期 页码：2227~2233

关键词：浮游动物；磷虾类；优势种；聚集强度；东海；

Keywords:zooplankton, euphausiids, dominant species, aggregation intensity, East China Sea,

摘 要 ：根据1997~2000年东海23°30′~33°N、118°30′~128°E海域4个季节海洋调查资料,对东海磷虾类优势种的生态特征进行了研究,运用定量定性方法探讨了这些优势种的生态环境适应类型。结果表明:东海磷虾类的优势种主要有小型磷虾Euphausianana、中华假磷虾Pseudeuphausiasinica、宽额假磷虾Pseudeuphausialatifrons和太平洋磷虾Euphausiapacifica等4种;中华假磷虾和宽额假磷虾属于适应夏秋季环境的暖温种和暖水种,小型磷虾和太平洋磷虾为适应冬春季环境的温水种;暖水种往往具有较高的丰度和出现频率,温水种的出现率相对较低;温水种有很高的聚集强度。中华假磷虾系近岸暖温种;宽额假磷虾是外海暖水种;小型磷虾最适温度相对较高,分布区偏外海,是高盐温水种;太平洋磷虾最适温度相对较低,分布区偏近海,虽是高盐温水种,但高分布区的盐度往往低于小型磷虾。

Abstract:The aim of this paper is to study the ecological characters of the dominant species of Euphausiids in the East China Sea. Four oceanographic cruises were conducted in the East China Sea (23°30′~33°N、118°30′~128°E) during the period 1997～2000. Altogether four dominant species of Euphausiids were recorded in the East China Sea, Euphausia nana Brinton, Euphausia pacifica Hansen, Pseudeuphausia sinica Wang et Chen, and Pseudeuphausia latifrons(S. O. Sars). They were categorized according to their habitat condit...

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