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首页> 外文期刊>BMC Ecology >Assemblages of certain benthic molluscs along the southwestern Atlantic: from subtidal to deep sea
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Assemblages of certain benthic molluscs along the southwestern Atlantic: from subtidal to deep sea

机译：沿着西南大西洋的某些底栖软体动物的组装：从夏天到深海

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摘要

We analyse the distribution of Gastropods and Chitons from shallow to deep waters along the southwestern Atlantic Ocean off Argentina and discuss possible factors determining the observed biogeographic patterns. Three major biogeographic groups are defined on the basis of Gastropod and Chiton species associations, i.e., continental shelf ( 350–2000?m) and lower continental slope (2000–3000?m). Bathymetry appears as the main factor modifying large-scale distribution of the fauna at a. In this scenario, species associations are determined by marine currents that clearly occur at a particular and well defined depth. No arrangement of species by geographic location was found in assemblages from the continental shelf and upper continental slope. We hypothesize that depth and marine currents are the main factor affecting the distribution of Gastropods and Chitons along the SW Atlantic between 200 and 3000?m depth.
机译：我们分析了沿着阿根廷西南大西洋的浅层到深水区的宇宙和髁上的分布，并讨论了确定所观察到的生物地理图案的可能因素。三个主要的生物地理群是基于胃料和克里龙物种关联，即大陆架（350-2000？M）和较低的大陆坡（2000-3000米）的基础上定义。沐浴般看作是修改动物部大规模分布的主要因素。在这种情况下，物种关联由海洋电流确定，该母线在特定和明确的深度处清楚地发生。没有地理位置的物种的布置是在大陆架和上大陆坡的装配中找到的。我们假设深度和海洋电流是影响沿SW大西洋的胃料和凝结胶囊的分布的主要因素。

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