Background This study investigates the marine macroinvertebrate fauna of rhodolith beds (non-geniculated red corallinaceaous algae) in northeast Brazilian. A total of 57 species were identified, belonging to six phyla (Platyhelminthes, Annelida, Sipuncula, Mollusca, Arthropoda and Echinodermata), of which 50 are considered here as new records for the Paraíba State. Annelids (Class Polychaeta) were the most representative taxa in Miramar and Seixas Beaches, while molluscs were dominant in Maceió Beach. New information This is the first study that includes an identification key, diagnostic features and distribution patterns worldwide and local (including new records) of the marine invertebrate fauna associated with rhodolith beds in northeast Brazil (State of Paraíba). Sampling events were performed in 2018, at low tide in the intertidal to shallow subtidal zones (1.5 and 4.0 m depth), in Miramar, Seixas and Maceió Beaches. A total of 17 species were found for the first time on Seixas Beach, as well as all identified species for Miramar and Maceió. This study tries to contribute to the knowledge of marine invertebrates in northeast Brazilian shallow habitats, providing a baseline for future environmental studies.

中文翻译：

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与巴西东北部（帕拉伊巴州）红石/maërl 床相关的海洋无脊椎动物


背景本研究调查了巴西东北部红石床（非膝状红珊瑚藻）的海洋大型无脊椎动物群。总共鉴定了 57 个物种，属于 6 个门（扁形动物门、环节动物门、星虫门、软体动物门、节肢动物门和棘皮动物门），其中 50 种被认为是帕拉伊巴州的新记录。环节动物（多毛类）是 Miramar 和 Seixas 海滩最具代表性的类群，而软体动物在 Maceió 海滩占主导地位。新信息 这是第一项研究，其中包括与巴西东北部（帕拉伊巴州）红石床相关的海洋无脊椎动物群的全球和当地（包括新记录）的识别要点、诊断特征和分布模式。采样活动于 2018 年退潮时在 Miramar、Seixas 和 Maceió 海滩的潮间带至浅潮下带（1.5 和 4.0 m 深）进行。 Seixas 海滩首次发现了 17 个物种，以及 Miramar 和 Maceió 的所有已识别物种。这项研究试图增进对巴西东北部浅层栖息地海洋无脊椎动物的了解，为未来的环境研究提供基线。