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首页> 外文期刊>Brazilian Journal of Aquatic Science and Technology >Distribui??o Espacial da Macrofauna e Sua Intera??o Com o Sedimento no Parque Aquícola da Enseada da Arma??o do Itapocoroy/SC
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Distribui??o Espacial da Macrofauna e Sua Intera??o Com o Sedimento no Parque Aquícola da Enseada da Arma??o do Itapocoroy/SC

机译：Itapocoroy（SC）/ Enseada daArmaçaodo Itapocoroy / SC水产养殖公园大型动物的空间分布及其与沉积物的相互作用

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The distribution of the benthic macrofauna of Itapocoroy Bay and the factors that influence it were analyzed within 50 sampling stations determined in a grid, covering the whole extent of the Bay. Two temporal sampling were done – one in July 2010 and the other in February 2011. Numeric describers of the community were associated with sediment characteristics, depth, salinity and temperature according to multivariate statistical analysis. A total of 4338 organisms were collected whereby 97 species were identified and classified in Polychaeta, Crustacea and Mollusca. Four faunal assemblages were found, and their spatial distribution was mainly related to depth and sediment characteristics. The first assemblage was the deepest and showed higher concentration of fine sediments, dominated by Kinbergonuphis sp.; the second assemblage - located under the mussel farm - showed high heterogeneity of sediments and was dominated by Ampelisca spp.; the third assemblage, shallower and with pebble concentration, was dominated by species of the Syllidae family; and the fourth assemblage was characterized by well sorted sediment with high percentage of sand, dominated by Prionospio sp. 1. Although the Bay is a sheltered site, the distribution of sediments showed that high energetic hydrodynamics processes operate inside it, which is able to avoid the formation of biodeposits. Nevertheless, the constant supply of organic matter and shell fragments accumulation from mussel farms are a source of stress, increasing the abundance and diversity values near the mussel farms.
机译：对Itapocoroy湾底栖大型动物区系的分布及其影响因素进行了分析，在网格内确定的50个采样站内进行了分析，覆盖了整个海湾。进行了两个时间采样-一个在2010年7月，另一个在2011年2月。根据多元统计分析，该群落的数字描述者与沉积物特征，深度，盐度和温度相关。总共收集了4338种生物，从而在Polychaeta，甲壳纲和软体动物中鉴定了97种并对其进行了分类。发现了四个动物群落，它们的空间分布主要与深度和沉积物特征有关。第一个组合是最深的，并显示出较高浓度的细小沉积物，主要由Kinbergonuphis sp。主导。第二个组合位于贻贝养殖场下，显示出沉积物的高度异质性，并以Ampelisca spp为主。第三类组合，较浅且具有卵石浓度，主要由Syllidae族的种组成。第四类组合的特征是泥沙含量高，沙粒含量高的沉积物，以Prionospio sp。为主。 1.尽管海湾是一个庇护所，但沉积物的分布表明其内部有高能流体动力学过程，能够避免生物沉积物的形成。然而，贻贝养殖场不断供应的有机物和贝壳碎片是压力的来源，增加了贻贝养殖场附近的丰度和多样性值。

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