G. Figueiredo, R. Schwamborn, A. Bertrand, Simone M. A. Lira
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引用次数: 2
摘要
关于热带海洋浮游软体动物的生物地理和分类学知识，特别是关于翼管纲(也称为异足类或海象)的知识仍然不完整。本文报道了巴西东北陆坡和Fernando de Noronha群岛海域首次发现的异足类Firoloida desmarestia Lesueur(1817)，并扩展了其在热带大西洋的地理分布。我们提供了新的详细的数字图像和描述，这种高度脆弱和透明的胶状物种。样本是在“ABRACOS”(巴西海岸声学)项目中使用邦戈网采集的。在分析的96个样本中，有6个样本记录在5个样本中，3个在费尔南多·迪诺罗尼亚，3个在巴西东北海岸。本研究将F. desmarestia的分布范围扩大到热带大西洋西部3°S-9°，强调了详细研究热带海洋大型胶状浮游生物多样性的重要性。
New records of the mollusk Firoloida desmarestia Lesueur, 1817 (Gastropoda: Pterotracheidae) off Fernando de Noronha Archipelago and Northeastern Brazilian continental slope, Tropical Atlantic
Biogeographic and taxonomic knowledge on planktonic mollusks, specifically on Pterotracheoidea (also known as heteropods or sea elephants) in tropical oceans, is still incomplete. In this paper we report the first record of the heteropod Firoloida desmarestia Lesueur (1817) on waters off the Northeast Brazilian continental slope and Fernando de Noronha Archipelago and extend its geographic distribution in the tropical Atlantic. We provide new detailed digital image and descriptions of this highly fragile and transparent gelatinous species. Samples were taken in the context of the ‘ABRACOS’ (Acoustic along the Brazilian Coast) project using bongo nets. Out of 96 samples analyzed, six specimens were recorded in five samples, three at Fernando de Noronha, and three off the Northeast Brazilian coast. The present study extends the range of distribution of F. desmarestia to 3°S-9°Sin the western the Tropical Atlantic and highlights the importance of detailed studies on large-sized gelatinous plankton biodiversity in tropical oceans.
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