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首页> 外文期刊>Journal of Molluscan Studies >Biogeographical relationships of the molluscan fauna of the Ormonde Seamount (Gorringe Bank, Northeast Atlantic Ocean)
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Biogeographical relationships of the molluscan fauna of the Ormonde Seamount (Gorringe Bank, Northeast Atlantic Ocean)

机译：奥蒙德海山软体动物区系的生物地理关系（东北大西洋戈林格银行）

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摘要

Thirty-six taxa (28 Gastropoda and eight Bivalvia) were collected at Ormonde Seamount (Gorringe Bank). Trochidae and Rissoidae, both with three species, were the best represented families. Manzonia crispa (Watson, 1873), formerly thought to be restricted to Madeira, has its range extended to the northeast. Of the 25 prosobranchs, 14 taxa have a planktotrophic type of development and 11 taxa are non-planktotrophic. Most of the species that occur at Ormonde are related to Mediterranean taxa, to those of the Portuguese continental shelf, and also to those of Madeira and the Canary Islands. The geographical position and topography of seamounts, the prevailing sets of sea-surface and depth currents, the distance to the nearest colonizing source, available area for the settlement of the larvae, mean and annual range of water temperature, larval ecology, biotic factors (interspecific competition, the history of the successive colonizers), and also anthropogenic factors are discussed, in order to provide an explanation of the biogeographical relationships of the Ormonde Seamount.
机译：在Ormonde Seamount（Gorringe Bank）收集了36个类群（28个腹足纲和8个双壳纲）。 Trochidae和Rissoidae都具有三个物种，是代表性最强的科。以前被认为仅限于马德拉岛的Manzonia crispa（Watson，1873年），其范围扩大到了东北。在25个近亲分支中，有14个分类群具有浮游性发育类型，而11个分类群是非浮游性的。在奥蒙德（Ormonde）发生的大多数物种与地中海生物群，葡萄牙大陆架的物种以及马德拉和加那利群岛的物种有关。海山的地理位置和地形，主要的海面和深度洋流，到最近的殖民地源的距离，可用于幼体定居的区域，水温的平均和年度范围，幼体生态学，生物因子（种间竞争，连续定居者的历史，以及人为因素也进行了讨论，以提供对Ormonde海山生物地理关系的解释。

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