Origin and Evolution of the Freshwater Eels, Genus Anguilla
Origin and Evolution of the Freshwater Eels, Genus Anguilla
复制标题
安圭拉淡水鳗鱼的起源和进化
DOI：
10.1007/978-4-431-65907-5_2
复制
发表时间：
2003
影响因子：
2.9
通讯作者：
J. Aoyama
中科院分区：
文献类型：
--
作者：
J. Aoyama
安圭拉属淡水鳗的起源和进化长期以来一直吸引着生物学家，因为它们壮观的长距离产卵迁徙具有进化意义。然而，与生态学研究相比，淡水鳗的系统发育却很少受到重视，而这对了解淡水鳗属的进化史至关重要。鳗不仅在生态学上很有趣，而且还因为它们独特的生物地理。目前在形态学和遗传学上都已被确认的15种鳗鱼中，大多数主要分布在澳大利亚、亚洲、非洲和北美大陆的东部边缘。安圭拉产于欧洲西部和邻近的陆地（Schmidt 1922, 1925; Ege 1939; Tesch 1977）（图1）。它们的幼虫，被称为细头鳗，被低纬度的暖流向西运送，使它们能够栖息在上述大陆的东部边缘，而欧洲鳗的细头鳗则被向西运送，离开它们在马尾藻海的产卵区，随后被墨西哥湾流和北大西洋暖流的强烈东流运送。然而，尽管存在温暖的巴西洋流，但南美东海岸却没有鳗鱼。鳗鲡在世界范围内的分布模式不仅提出了为什么它们在南大西洋没有出现的问题，还提出了两个温带大西洋物种是如何从它们在印度太平洋的同族中分离出来的问题。为了回答这些问题，应该通过分析它们的系统发育关系来考察鳗的起源和分布。
The origin and evolution of the freshwatereels of the genusAnguillahas long fascinated biologists because of the evolutionary implications of their spectacular long-distance spawning migrations. However, the phylogeny of the freshwatereels, which is essential to understand the evolutionary history of the genus, has received little attention in comparison to ecological studies. Anguillideels are interesting not only ecologically but also because of their unique biogeography. Most of the 15 species presently recognized both morphologically and genetically are found mainly along the eastern margins of the Australian, Asian, African, and North American continents, except for the Europeaneel,A. anguilla, which is found in the western parts of Europe and the adjacent land masses (Schmidt 1922, 1925; Ege 1939; Tesch 1977) (Fig. 1). Their larvae, called leptocephali, are transported westward by warm currents flowing at low latitudes, enabling them to inhabit the eastern margins of the aforementioned continents, whereas the leptocephali of Europeaneels are transported westward away from their spawning area in the Sargasso Sea and then are subsequently transported by the strong eastward flow of the Gulf Stream and then the North Atlantic Drift. However, anguillideels are absent along the east coast of South America, despite the existence of the warm Brazil Current. Not only does the worldwide pattern of distribution of anguillideels raise questions about why they are absent in the South Atlantic, it also raises questions about how the two temperate Atlantic species became isolated from their congeners in the Indo-Pacific. To answer these questions, the origins and the dispersion of anguillideels should be examined by analyzing their phylogenetic relationships.
影响因子：
4.1
作者：
Aoyama, J;Nishida, M;Tsukamoto, K
通讯作者：
Tsukamoto, K
影响因子：
4.1
作者：
Inoue, JG;Miya, M;Nishida, M
通讯作者：
Nishida, M
影响因子：
3.9
作者：
Inoue, JG;Miya, M;Nishida, M
通讯作者：
Nishida, M