Distribution of Benthic Communities on the Tropical Rocky Subtidal of Armação dos Búzios, Southeastern Brazil
Distribution of Benthic Communities on the Tropical Rocky Subtidal of Armação dos Búzios, Southeastern Brazil
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巴西东南部阿马桑杜斯布希奥斯热带岩石潮下带底栖生物群落分布
DOI：
10.1111/j.1439-0485.2004.00018.x
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发表时间：
2004
期刊：
影响因子：
--
通讯作者：
J. Creed
中科院分区：
文献类型：
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作者：
S. Oigman;M. Figueiredo;J. Creed
39.很少有研究描述巴西沿海岩石底栖生物群落的空间格局，因为这些生境几乎完全位于东南和南部海岸线。 动物和植物群进行了分析，采用样方法，并确定了沿着断面向下到底部沙平原在阿尔马奥多斯布齐奥斯，巴西的10个岩石海岸的物种丰度和分布。最常见的16种物种占底栖生物覆盖率的97%左右，包括刺胞动物、藻类、多孔动物和棘皮动物。刺胞动物和藻类是最重要的类群，丰度分别为13-66%和27- 68%。物种分布具有明显的深度分带性。藻类群落占主导地位的最浅的深度更暴露于波和陡峭的基板坡度的网站，而刺胞动物群落，分为zoanthidean Palythoa caribaeorum和珊瑚Siderastrea stellata，更丰富的中间更大（4米）的深度。不同的社区模式之间的网站，表明不同的空间离散的因素可能会对每个岩石海岸。
. Few studies have described the spatial patterns of rocky sublittoral benthic communities in Brazil, where these habitats are almost exclusively located on the southeast and south coastline. The fauna and flora were analyzed using a quadrat method, and the species abundance and distribution were determined along transects down to the bottom sand plain on 10 rocky shores at Armacao dos Buzios, Brazil. The 16 most common species accounted for around 97% of the benthos coverage and included cnidarians, algae, poriferans, and echinoderms. Cnidarians and algae were the most important groups, with abundance ranging from 13–66% and 27–68%, respectively. The species distribution indicated a clear depth zonation pattern. The algal community dominated the shallowest depths in sites more exposed to waves and steeper substrate slope, whereas the cnidarian community, divided into the zoanthidean Palythoa caribaeorum and the coral Siderastrea stellata, was more abundant from intermediate to greater (4 m) depths. Different community patterns were found between sites, demonstrating that different spatially discrete factors may be acting on each rocky shore.