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首页> 美国政府科技报告 >Ecology, Distribution, Quantification, and Impact of Introduced, Asian Porphyra Yezoensis F. Yezoensis Ueda and Porphyra Yezoensis F. Narawaensis A. Miura in the Northwestern Atlantic
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Ecology, Distribution, Quantification, and Impact of Introduced, Asian Porphyra Yezoensis F. Yezoensis Ueda and Porphyra Yezoensis F. Narawaensis A. Miura in the Northwestern Atlantic

机译：引进的亚洲紫菜的生态学，分布，量化和影响F. Yezoensis Ueda和porphyra Yezoensis F. Narawaensis a. miura在西北大西洋

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摘要

Invasive species pose a threat to the balance of intertidal ecosystems. Recently, two forms of the non-native species, Porphyra yezoensis Ueda, were found at multiple sites between New York and Downeast Maine. A 2007 New England survey confirmed the presence of P. yezoensis f. yezoensis at nine sites, including two beyond its reported distribution. Porphyra yezoensis f narawaensis A. Miura was found at four sites in Long Island Sound. To assess the ecological impact of f. yezoensis and f. narawaensis on Northwest Atlantic macroalgal communities, monthly density and biomass data were gathered in 2008 from seven southern New England sites along 20 m transect lines. P. yezoensis f. yezoensis was not detected at two historic sites. The f. narawaensis has expanded to Cape Cod. Fucoid algae epiphytized by P. yezoensis demonstrated no stature reduction. A Porphyra species of cryptic origins, P. spp. 'stamfordensis,' may be competing with P. yezoensis.

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