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Temporal and Spatial Variation of Benthic Intertidal Community of a Sandstone Reef in Pernambuco—Brazil as a Tool to Evaluate Bioinvasion

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Journal of Environmental Science and Engineering(A) 2018年第2期7卷 76-81页

作者： mariana alves de guimaraens JoséRoberto de Souza Instituto de Ciências Biológicas Universidade de PernambucoRecife 50100-130PEBrazil departamento de Zoologia Universidade Federal de PernambucoCidade UniversitáriaRecife 50670-901PernambucoBrazil

In this study,the superior and inferior intertidal areas of hard substrate were sampled during the rainy season(June and August)and dry season(October and december)of 2015 at Piedade *** percent cover of Chthamalus bisinuatus,Brachidontes solisianus,Isognomon bicolor,Ulva *** filamentous green algae were measured with a 20×20 cm quadrat with one hundred *** quadrats were placed randomly at the sampling sites of Piedade ***-way ANOVAs(Analyses of Variance)were used to test the temporal variation of the studied *** bisinuatus occurred only in the superior mesolitoral where they had an increase in percent cover during the dry season,which wasn’t statistically *** solisianus occurred in both superior and inferior levels and had a significant decrease in the superior intertidal during the dry *** bicolor occurred only in the inferior level and decreased to almost zero in the *** *** green filamentous algae had an opposite pattern in the inferior intertidal although only the filamentous algae showed a significant decrease in the dry *** such as Chthamalus bisinuatus resists better the heat and are dominant in the superior intertidal levels of reefs and rocky *** solisianus didn’t change much in the lower intertidal and showed that can coexist with the invasive Isognomon *** the filamentous green showed a decrease in the dry season probably more affected by desiccation than Ulva *** Piedade reef.

关键词： Bioinvasion community ecology sandstone reefs Isognomon bicolor

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