Cnidofauna de recifes emersos da área de proteção ambiental costa dos corais (estados de Pernambuco e Alagoas) e percepção do ambiente recifal por moradores locais

• Autor(a) principal: Steiner, Andrea Quirino
• Data de Publicação: 2005
• Tipo de documento: Dissertação
• Idioma: por
• Título da fonte: Biblioteca Digital de Teses e Dissertações da UFPB
• Texto Completo: https://repositorio.ufpb.br/jspui/handle/123456789/14924
• topic: Biologia; Proteção ambiental; Educação ambiental; CNPQ::CIENCIAS BIOLOGICAS::ZOOLOGIA

The main objectives of this study were to characterize the Environmental Protection Area Costa dos Corais, focusing on social-environmental issues, and to carry out two research projects: (1) To calculate and compare the cover of benthic organisms of the reef-flat of the first line of reefs, with special attention to the cnidarians and (2) to study the reef environment perception of bivo distinct populations of municipalities located in the EPA. Therefore, continuous lhe transects were undertaken in six beaches of the EPA (Carneiros and Tamandaré, in Tamandaré/PE; Bitingui and Barreiras, in Japaratinga/AL; and Sonho Verde and Paripueira, in Paripueira/AL), on three regions of the reef-flat, with four replicates for each region. For the perception studies, 132 and 128 interviews were carried out with the adult urban population of the municipalities of Porto de Pedras/AL (October/2004) and Tamandaré/PE (December/2004), respectively, using a form with 19 questions; at the end, the data was analyzed statistically and the results from the two towns were compared. Transect data showed a greater coverage of algae in all of the beaches except for Tamandaré. Among the cnidarians, the zoanthids (Zoanthus sp. and Palythoa caribaeorum) were predominant, but the scleractinian corals Siderastrea stellata and Favia gravida also ocurred, of which the former was most frequent. Other organisms that were found were: sponges (predominantly Cinachyrella alloclada), the mollusk Brachidontes sp. and the echinoderm Echinometra lucunter. Bleaching was observed in both coral species (in all of the beaches visited), as well as in the zoanthid P. caribaeorum. In general, the organisms recorded stand out for their ability to tolerate the reef-flat's unstable conditions. In addition, the cluster analyses showed that factors such as the closeness to bodies of water and human impact have substantial influence in the reef-flat's benthic cover composition, even more than the close distance between some areas. For the environmental perception studies the results showed that, despite environmental education's listing in the federal decree that created the EPA under the management measures that should be carried out, the knowledge of most of the population is still not constructed; in addition, a great percentage did not know of the EPA's existence. Nevertheless, the distinct conditions of the two municipalities had little infiuence on this knowledge, and few significant differences were observed between the two populations. Thus, we recommend that effective environmental education projects be carried out in the area to address these and other issues. However, despite the number of environmental and research initiatives in Tamandaré, the population of Porto de Pedras showed more receptivity to this kind of project.