Population dynamics of Corbicula fluminea (Muller, 1774) in mesohaline and oligohaline habitats: Invasion success in a Southern Europe estuary
Population dynamics of Corbicula fluminea (Muller, 1774) in mesohaline and oligohaline habitats: Invasion success in a Southern Europe estuary
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DOI：
10.1016/j.ecss.2011.07.014
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发表时间：
2012-10-20
影响因子：
2.8
通讯作者：
Neto, J. M.
中科院分区：
文献类型：
--
作者：
Franco, J. N.;Ceia, F. R.;Neto, J. M.
河蚬是水生生态系统中最重要的非土著物种之一，具有广泛的分布范围和潜在的生态效应。从2007年12月至2008年12月，在13个月的时间里，研究了自2003年以来在蒙代戈河口上游地区（寡盐和中盐部门）的存在。月平均丰度和生物量分别为542至11142个个体M-2和13.1-20.4克无灰干重m（-2）。C的人口。fluminea主要是由少年，总是在极高的密度相比，其他河口生态系统（如米尼奥河口），这表明一个连续的招聘模式。蒙台戈河的水力状况有利于上游产生的新兵在蒙台戈河口上游的下游定居。然而，在这些部门的河口的盐度显然既不赞成增长，也不建立结构化的人口这个物种。其他因素，如污染物和捕食，这是没有研究，也可能有助于观察到的群落结构。(c)2011爱思唯尔有限公司保留所有权利。
Due to its range expansion and potential ecological effects, Corbicula fluminea is considered one of the most important non-indigenous species (NIS) in aquatic ecosystems. Its presence since 2003 in the upstream area of Mondego estuary (oligohaline and mesohaline sectors) was studied during thirteen months, from December 2007 to December 2008. Monthly mean abundance and biomass ranged from 542 to 11142 individuals M-2 and 13.1-20.4 g Ash Free Dry Weight m(-2), respectively. Populations of C. fluminea were composed mostly of juveniles, always present in extremely high densities compared to other estuarine ecosystems (e.g. Minho estuary) suggesting a continuous recruitment pattern. The hydraulic regime of the River Mondego favours the downstream colonization of the upper Mondego estuary by recruits produced upstream. However, salinity in these sectors of the estuary apparently neither favours growth nor the establishment of structured populations of this species. Other factors like contaminants and predation, which were not studied, could also contribute to the community structure observed. (c) 2011 Elsevier Ltd. All rights reserved.