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자료유형
학술저널
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Amado-Filho, Gilberto M. (Instituto de Pesquisas Jardim Botanico do Rio de Janeiro, Diretoria de Pesquisa Cientifica) Bahia, Ricardo G. (Instituto de Pesquisas Jardim Botanico do Rio de Janeiro, Diretoria de Pesquisa Cientifica) Mariath, Rodrigo (Instituto de Pesquisas Jardim Botanico do Rio de Janeiro, Diretoria de Pesquisa Cientifica) Jesionek, Michel B. (Instituto de Pesquisas Jardim Botanico do Rio de Janeiro, Diretoria de Pesquisa Cientifica) Moura, Rodrigo Leao (Instituto de Biologia, Universidade Federal do Rio de Janeiro) Bastos, Alex C. (Departamento de Oceanografia, Universidade Federal do Espirito Santo) Pereira-Filho, Guilherme Henrique (Instituto do Mar, Universidade Federal de Sao Paulo, Campus Baixada Santista) Francini-Filho, Ronaldo Bastos (Centro de Ciencias Aplicadas e Educacao, Universidade Federal da Paraiba, Campus IV-Litoral Norte)
저널정보
한국조류학회(藻類) Algae Algae 제33권 제1호
발행연도
2018.1
수록면
85 - 99 (15page)

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Crustose calcareous algae (CCA) constitute one of the main reef builders on the Abrolhos Bank, Brazil. Once CCA taxonomy is locally understood, differences in growth-forms may be useful for the delimitation of taxa using characteristics such as the presence or absence of surface protuberances. Here, growth-forms were used to identify and quantify the most common CCA taxa on the shallow reefs (3-10 m) of the Abrolhos Bank to determine possible changes in the CCA community over a period of 10 years, and the ecological significance of CCA to local reefs was interpreted. The CCA assemblages were surveyed from 2006-2015 by using fixed photoquadrats at four sites in the inner (10-20 km from the mainland) and mid-shelf reefs (40-75 km from the mainland). The five most common CCA taxa were Pneophyllum conicum, the Lithophyllum kaiserii / Lithophyllum sp. complex, Melyvonnea erubescens, the Hydrolithon boergesenii / Porolithon onkodes complex and Peyssonelia sp. The overall mean CCA cover on the reefs was 20%. A comparison with a previous monitoring study in the same region indicated that the CCA cover nearly doubled from 2003-2008 to 2006-2015. This study reveals that the coral-killing species P. conicum dominated CCA flora on the shallow Abrolhos reefs in the last decade, and the local specific abundance of CCA slightly fluctuated over time and was species- and site-specific. The information obtained in this study contributes to the understanding of the ecology of the key calcifying components of the Abrolhos reefs and provides a useful baseline for exploring the responses of CCA to future environmental changes.

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