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首页> 外文期刊>Helgoland marine research >Effects of macroalgal identity on epifaunal assemblages: native species Emphasis Type="Italic"versus/Emphasis the invasive species Emphasis Type="Italic"Sargassum muticum/Emphasis
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Effects of macroalgal identity on epifaunal assemblages: native species Emphasis Type="Italic"versus/Emphasis the invasive species Emphasis Type="Italic"Sargassum muticum/Emphasis

机译：大型藻类身份对表生动物组合的影响：本地物种对入侵物种 Sargassum muticum

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摘要

Seaweeds are a refuge from stressful conditions associated with life on rocky intertidal shores, and there is evidence that different macrophytes support different assemblages of mobile epifauna. Introduction of non-indigenous macroalgae may have a great impact on associated epifaunal assemblages and ecosystem processes in coastal areas. Previous studies have reported conflicting evidences for the ability of epifauna to colonize non-indigenous species. Here, we analyzed epifaunal assemblages associated with three species of macroalgae that are very abundant on intertidal shores along the Galician coast: the two native species Bifurcaria bifurcata and Saccorhiza polyschides and the invasive species Sargassum muticum. We collected samples of each species from three different sites at three different times to test whether variability of epifaunal assemblages was consistent over space and time. Epifaunal assemblages differed between the three macroalgae. Results suggested that stability and morphology of habitat played an important role in shaping the structure of epifaunal assemblages. This study also showed that the invasive S. muticum offered a suitable habitat for many invertebrates.
机译：海藻是避开与潮间带岩石海岸生活相关的压力条件的避难所，并且有证据表明，不同的大型植物支持不同种类的活动表生动物。非本土大型藻类的引进可能会对沿海地区相关的表生动物群落和生态系统过程产生重大影响。先前的研究已经报道了表生动物在非本土物种中定殖的能力的相互矛盾的证据。在这里，我们分析了与加利西亚沿海潮间带上非常丰富的三种大型藻类相关的表生动物群：两种原生物种Bifurcaria bifurcata和Saccorhiza polyschides以及入侵物种Sargassum muticum。我们在三个不同的时间从三个不同的地点收集了每个物种的样本，以测试表观动物组装体的变异性在时间和空间上是否一致。三个大型藻类之间的表观动物群落不同。结果表明，栖息地的稳定性和形态在塑造表生动物群的结构中起着重要作用。这项研究还表明，侵袭性粘液链球菌为许多无脊椎动物提供了合适的栖息地。

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