Distribution of Calanus Species in the Seas of the Northern Hemisphere
Distribution of Calanus Species in the Seas of the Northern Hemisphere
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北半球海域的哲水蚤种类分布
DOI：
10.1002/iroh.19700550203
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发表时间：
1970
影响因子：
1.9
通讯作者：
W. A. Jaschnov
中科院分区：
文献类型：
--
作者：
W. A. Jaschnov
200年前，J. GUNNERUS（1770年）首次描述了一种海洋桡足类Monoculus finmarchicus，它是在挪威北方的芬马克省海岸发现的。本种目前被称为卡兰~ L.~ finmarchicus是大西洋及其邻近海域分布最广的海洋浮游动物的代表之一。它可能被认为是最重要的海洋无脊椎动物;它在鲱鱼营养中的作用是众所周知的。C. finmarchicus后来在其他海洋被发现，这一事实使人们相信该物种在北半球和南半球都非常广泛。S. EKMAN（1935）将本种归为冷水域的一种，这一观点至今仍为一些海洋生态学家所认同。从世界各大洋不同地区采集的“finmarchicus”的数据表明，该物种在所有大洋和海洋广泛分布的概念是不正确的。C. REES（1949）的研究表明，这两个近缘种C. finmarchicus和C. Helgolandicus，顺便说一句，他认为是同一物种的两种形式，可以通过雌性第五对腿的结构来区分。
Two-hundred years ago J. GUNNERUS (1770) published the first description of a marine copepod Monoculus finmarchicus, named after its finding off the coast of Finmark province in the northern part of Norway. This species, presently known as Calan~ L.~ finmarchicus, is one of the most, widely distributed representatives of marine zooplaakton in the Atlantic Ocean and adjacent seas. It might be regarded as the most important marine invertebrate; its role in the nutrition of the herring is well known. C. finmarchicus has since been found in other oceans and seas, and this fact has led to the belief that the species is extremely widespread both in the Nor-thern and in the Southern Hemispheres. S. EKMAN (1935) refers this species to the group of cold-water cosmopolitans, a view still shared by some marine ecologists.However, a detailed study of the morphology of,, C. finmarchicus" from different areas of the World's oceans has shown that the concept of a widespread distribution of the species in all oceans and seas is incorrect. C. REES (1949) showed that the two closely related species, C. finmarchicus and C. helgolandicus, which, by the way, he had regarded as two forms of the same species, can be distinguished by the structure of the fifth pair of legs of females.