Bigatti Gregorio, Signorelli Javier
Laboratorio de Reproducción y Biología Integrativa de Invertebrados Marinos, (LARBIM) IBIOMAR-CONICET. Bvd. Brown 2915 (9120) Puerto Madryn, Chubut, Argentina Laboratorio de Reproducción y Biología Integrativa de Invertebrados Marinos Puerto Madryn Argentina.
Universidad Nacional de la Patagonia San Juan Bosco, Boulevard Brown 3051, Puerto Madryn, Chubut, Argentina Universidad Nacional de la Patagonia San Juan Bosco Puerto Madryn Argentina.
Zookeys. 2018 Oct 22(791):47-70. doi: 10.3897/zookeys.791.22587. eCollection 2018.
The list of marine invertebrate biodiversity living in the southern tip of South America is compiled. In particular, the living invertebrate organisms, reported in the literature for the Argentine Sea, were checked and summarized covering more than 8,000 km of coastline and marine platform. After an exhaustive literature review, the available information of two centuries of scientific contributions is summarized. Thus, almost 3,100 valid species are currently recognized as living in the Argentine Sea. Part of this dataset was uploaded to the OBIS database, as a product of the Census of Marine Life-NaGISA project. A list of 3,064 valid species, grouped into 1,662 genera distributed in 808 families and 23 phyla, was assessed. The best represented taxa were Arthropoda and Mollusca, contributing approximately with the 50% of the mentioned species in the literature. Cumulative species curves were analyzed in order to estimate the percentage of marine invertebrate biodiversity that is currently known. However, no model fit to our data, showing that the recorded species represent less than 50% of the expected marine invertebrate biodiversity for the Argentine Sea. The great surface of the Argentine Marine Platform (6,581,500 km) and the relative low effort in collecting and studying new species due to economical restrictions could explain the low fraction of described species. The training of new taxonomists, as well as, the support of projects that contribute to the knowledge of marine invertebrate biodiversity from South Western Atlantic is recommended.
编制了生活在南美洲南端的海洋无脊椎动物生物多样性清单。特别是，对文献中报道的阿根廷海域的无脊椎动物生物进行了核对和总结，该海域海岸线和海洋平台绵延超过8000公里。经过详尽的文献综述，总结了两个世纪以来科学贡献的现有信息。因此，目前已有近3100个有效物种被确认为生活在阿根廷海域。作为海洋生物普查——海洋生物地理信息系统项目的成果，该数据集的一部分已上传至海洋生物信息系统数据库。评估了一份包含3064个有效物种的清单，这些物种分为1662个属，分布在808个科和23个门中。其中，节肢动物门和软体动物门是最具代表性的类群，在文献中提及的物种中所占比例约为50%。分析了累积物种曲线，以估计目前已知的海洋无脊椎动物生物多样性的百分比。然而，没有模型能够拟合我们的数据，这表明记录的物种不到阿根廷海域预期海洋无脊椎动物生物多样性的50%。阿根廷海洋平台面积广阔（6581500平方公里），且由于经济限制，在收集和研究新物种方面投入的精力相对较少，这可能解释了已描述物种比例较低的原因。建议培养新的分类学家，并支持有助于了解西南大西洋海洋无脊椎动物生物多样性的项目。
