ABSTRACT

This study aimed to investigate the biodiversity of caridean shrimps inhabiting the consolidated sublittoral of two Brazilian biodiversity locals Laje de Santos and Vitória Island. We provide data about species composition, cumulative species curves and ecological indexes. Additionally, we compared different sampling techniques used for cryptic fauna studies. The samples were carried out quarterly for one year, using Artificial Refuge Substrate (ASR) for the passive capture and SCUBA diving for active capture. A total of 323 individuals were sampled with 17 species recorded, 13 in Vitória Island and 12 in Laje de Santos. Alpheus formosus and Cuapetes americanus were dominant in both areas and recognized as key-species for the community. Using two-sampling methods is highly recommended for future studies due to the fact that small and translucent species were obtained with ARS and large and colourful specimens were collected during SCUBA diving expeditions. An alien shrimp from the genus Athanas was registered for the first time in a protected area in Brazil. Additionally, all these results/data are important for future management and work plans in Brazilian protected areas since decapod crustaceans are an extremely important fauna group in any subtidal ecosystem.

摘要

这项研究旨在调查居住在两个巴西生物多样性本地人拉耶·德·桑托斯和维托里亚岛的合并近沿海的石斑虾的生物多样性。我们提供有关物种组成，物种累积曲线和生态指数的数据。此外，我们比较了用于神秘动物研究的不同采样技术。样本每季度进行一年，使用人工避难所基质（ASR）进行被动捕获，使用SCUBA潜水进行主动捕获。总共对323个人进行了采样，记录了17种物种，其中Vitória岛13种，Laje de Santos 12种。河神福尔摩和Cuapetes美洲在这两个领域都占主导地位，并被认为是社区的关键物种。强烈建议使用两次采样方法进行将来的研究，因为事实是，通过ARS获得了小而半透明的物种，并且在SCUBA潜水探险期间收集了大而鲜艳的标本。来自Athanas属的外来虾首次在巴西的保护区注册。此外，所有这些结果/数据对于巴西保护区的未来管理和工作计划都很重要，因为十足纲甲壳动物是任何潮下生态系统中极为重要的动物群。