Aldea Cristian, Novoa Leslie, Alcaino Samuel, Rosenfeld Sebastián
Centro de Investigación GAIA Antártica, Universidad de Magallanes, Av. Bulnes 01855, Punta Arenas, Chile.
Departamento de Ciencias y Recursos Naturales, Universidad de Magallanes, Chile.
Zookeys. 2020 Aug 24;963:1-36. doi: 10.3897/zookeys.963.52234. eCollection 2020.
An increase in richness of benthic marine mollusks towards high latitudes has been described on the Pacific coast of Chile in recent decades. This considerable increase in diversity occurs specifically at the beginning of the Magellanic Biogeographic Province. Within this province lies the Strait of Magellan, considered the most important channel because it connects the South Pacific and Atlantic Oceans. These characteristics make it an interesting area for marine research; thus, the Strait of Magellan has historically been the area with the greatest research effort within the province. However, despite efforts there is no comprehensive and updated list of the diversity of mollusks within the Strait of Magellan up to now. This study consisted of a complete bibliographic review of all available literature that included samples of mollusks in the Strait of Magellan. More than 300 articles were reviewed, covering 200 years of scientific knowledge. There were 2579 records belonging to 412 taxa, of which 347 are valid species. Of the total valid species, 44 (~13%) are considered of doubtful presence in the Strait. This work increases the known richness of mollusks of the Strait of Magellan by 228%; it is also the first report that integrates all available diversity studies of the three most speciose classes of benthic mollusks (Gastropoda, Bivalvia and Polyplacophora) from the Strait of Magellan.
近几十年来，智利太平洋沿岸底栖海洋软体动物的丰富度朝着高纬度地区增加。这种多样性的显著增加具体发生在麦哲伦生物地理省的起点。麦哲伦海峡位于该省内，被认为是最重要的海峡，因为它连接了南太平洋和大西洋。这些特征使其成为海洋研究的一个有趣区域；因此，麦哲伦海峡历来是该省内研究力度最大的区域。然而，尽管付出了努力，但截至目前，仍没有一份关于麦哲伦海峡内软体动物多样性的全面且最新的清单。本研究包括对所有包含麦哲伦海峡软体动物样本的现有文献进行全面的文献综述。查阅了300多篇文章，涵盖了200年的科学知识。有2579条记录属于412个分类单元，其中347个是有效物种。在所有有效物种中，有44种（约13%）被认为在海峡中的存在情况存疑。这项工作使麦哲伦海峡已知的软体动物丰富度增加了228%；这也是第一份整合了来自麦哲伦海峡底栖软体动物三个物种最丰富的纲（腹足纲、双壳纲和多板纲）所有现有多样性研究的报告。
