Avaliação da cobertura e monitoramento do branqueamento de corais nos recifes de Maracajaú/RN
Coral bleaching has been increasingly the focus of research around the world since the early 1980s, when it was verified to be increasing in frequency, intensity and amount of areas affected. The phenomenon has been recorded since 1993, associated with elevation of the sea surface temperature due to...
Na minha lista:
| Autor principal: | |
|---|---|
| Outros Autores: | |
| Formato: | Dissertação |
| Idioma: | por |
| Publicado em: |
Universidade Federal do Rio Grande do Norte
|
| Assuntos: | |
| Endereço do item: | https://repositorio.ufrn.br/jspui/handle/123456789/14046 |
| Tags: |
Adicionar Tag
Sem tags, seja o primeiro a adicionar uma tag!
|
| id |
ri-123456789-14046 |
|---|---|
| record_format |
dspace |
| institution |
Repositório Institucional |
| collection |
RI - UFRN |
| language |
por |
| topic |
Dinâmica de branqueamento. Parâmetros abióticos. Cobertura de corais. Recifes de Maracajaú Bleaching dynamic. Abiotic parameters. Coral coverage. Maracajaú reefs CNPQ::CIENCIAS BIOLOGICAS::ECOLOGIA |
| spellingShingle |
Dinâmica de branqueamento. Parâmetros abióticos. Cobertura de corais. Recifes de Maracajaú Bleaching dynamic. Abiotic parameters. Coral coverage. Maracajaú reefs CNPQ::CIENCIAS BIOLOGICAS::ECOLOGIA Souza, Izabel Maria Matos de Avaliação da cobertura e monitoramento do branqueamento de corais nos recifes de Maracajaú/RN |
| description |
Coral bleaching has been increasingly the focus of research around the world since the early 1980s, when it was verified to be increasing in frequency, intensity and amount of areas affected. The phenomenon has been recorded since 1993, associated with elevation of the sea surface temperature due to El Niños and water thermal anomalies, according to most reports around the world. On the coast of Rio Grande do Norte, Brazil, a mass coral bleaching event was recorded in the Environmental Protection Area of Coral Reefs (APARC) during March and April 2010, when the water temperature reached 34°C for several days. About 80% of the corals in Maracajaú reef-complex exhibited partial or total bleaching. The aims of this study were to verify representativeness of coral coverage and how the bleaching dynamic has developed among different species. Coral coverage was estimated according to Reef Check Brazil protocol associated with quadrant method, and bleaching was evaluated from biweekly visual surveys in 80 colonies of Favia gravida, Porites astreoides, Siderastrea stellata and Millepora alcicornis. At the same time temperature, pH, salinity and horizontal transparency, as well as mortality and disease occurrence were monitored. Analysis of variance and Multiple Regression from the perspective of time lag concept were used to evaluate the bleaching dynamics among species and the relationship between variation of means of bleaching and variations of abiotic parameters, respectively. Species showed significant differences among themselves as to variation of means of bleaching over time, but the dynamic of variation exhibited similar patterns |
| author2 |
http://lattes.cnpq.br/4017744487972778 |
| author_facet |
http://lattes.cnpq.br/4017744487972778 Souza, Izabel Maria Matos de |
| format |
masterThesis |
| author |
Souza, Izabel Maria Matos de |
| author_sort |
Souza, Izabel Maria Matos de |
| title |
Avaliação da cobertura e monitoramento do branqueamento de corais nos recifes de Maracajaú/RN |
| title_short |
Avaliação da cobertura e monitoramento do branqueamento de corais nos recifes de Maracajaú/RN |
| title_full |
Avaliação da cobertura e monitoramento do branqueamento de corais nos recifes de Maracajaú/RN |
| title_fullStr |
Avaliação da cobertura e monitoramento do branqueamento de corais nos recifes de Maracajaú/RN |
| title_full_unstemmed |
Avaliação da cobertura e monitoramento do branqueamento de corais nos recifes de Maracajaú/RN |
| title_sort |
avaliação da cobertura e monitoramento do branqueamento de corais nos recifes de maracajaú/rn |
| publisher |
Universidade Federal do Rio Grande do Norte |
| publishDate |
2014 |
| url |
https://repositorio.ufrn.br/jspui/handle/123456789/14046 |
| work_keys_str_mv |
AT souzaizabelmariamatosde avaliacaodacoberturaemonitoramentodobranqueamentodecoraisnosrecifesdemaracajaurn AT souzaizabelmariamatosde evaluationofcoverageandmonitoringofcoralbleachinginmaracajaurnreefs |
| _version_ |
1773965387095867392 |
| spelling |
ri-123456789-140462019-06-02T05:13:32Z Avaliação da cobertura e monitoramento do branqueamento de corais nos recifes de Maracajaú/RN Evaluation of coverage and monitoring of coral bleaching in Maracajaú/RN reefs Souza, Izabel Maria Matos de http://lattes.cnpq.br/4017744487972778 http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4790957P8 Ramos, Bárbara Segal http://lattes.cnpq.br/4551050959304176 Leite, Tatiana Silva http://lattes.cnpq.br/1003039770050759 Dinâmica de branqueamento. Parâmetros abióticos. Cobertura de corais. Recifes de Maracajaú Bleaching dynamic. Abiotic parameters. Coral coverage. Maracajaú reefs CNPQ::CIENCIAS BIOLOGICAS::ECOLOGIA Coral bleaching has been increasingly the focus of research around the world since the early 1980s, when it was verified to be increasing in frequency, intensity and amount of areas affected. The phenomenon has been recorded since 1993, associated with elevation of the sea surface temperature due to El Niños and water thermal anomalies, according to most reports around the world. On the coast of Rio Grande do Norte, Brazil, a mass coral bleaching event was recorded in the Environmental Protection Area of Coral Reefs (APARC) during March and April 2010, when the water temperature reached 34°C for several days. About 80% of the corals in Maracajaú reef-complex exhibited partial or total bleaching. The aims of this study were to verify representativeness of coral coverage and how the bleaching dynamic has developed among different species. Coral coverage was estimated according to Reef Check Brazil protocol associated with quadrant method, and bleaching was evaluated from biweekly visual surveys in 80 colonies of Favia gravida, Porites astreoides, Siderastrea stellata and Millepora alcicornis. At the same time temperature, pH, salinity and horizontal transparency, as well as mortality and disease occurrence were monitored. Analysis of variance and Multiple Regression from the perspective of time lag concept were used to evaluate the bleaching dynamics among species and the relationship between variation of means of bleaching and variations of abiotic parameters, respectively. Species showed significant differences among themselves as to variation of means of bleaching over time, but the dynamic of variation exhibited similar patterns Coordenação de Aperfeiçoamento de Pessoal de Nível Superior O branqueamento de corais tem sido o foco de um número crescente de estudos desde a década de 1980 quando foi verificado o aumento na frequência, intensidade e número de áreas atingidas. No Brasil o fenômeno tem sido registrado desde 1993, associado à elevação da temperatura das águas superficiais do mar decorrente de eventos de El-Niños e anomalias térmicas, conforme a maioria dos relatos em todo o mundo. No litoral do Rio Grande do Norte registrou-se branqueamento em massa de corais nos recifes da Área de Proteção Ambiental dos Recifes de Corais (APARC) em Março e Abril de 2010, quando a temperatura da água atingiu valor de 34◦C durante vários dias. Cerca de 80% dos corais do complexo recifal de Maracajaú exibiram branqueamento parcial ou total. Os objetivos deste trabalho foram verificar qual a representatividade do recobrimento de corais no Parracho de Maracajaú e como a dinâmica de branqueamento se desenvolve entre as espécies. A cobertura de corais foi estimada de acordo com o protocolo Reef Check Brasil associado ao método de quadrado, e o branqueamento foi avaliado a partir de censos visuais quinzenais em 80 colônias de Favia gravida, Porites astreoides, Siderastrea stellata e Millepora alcicornis. Ao mesmo tempo foram monitorados a temperatura da água, pH, salinidade e transparência horizontal, e a ocorrência de mortalidade e sintomas de doenças. Foram utilizadas a Análise de Variância e a Regressão Múltipla sob a perspectiva do conceito do time lag para avaliar a dinâmica de branqueamento entre as espécies e a relação da variação das médias com a variação dos fatores abióticos, respectivamente. As espécies apresentaram diferença significativa entre si quanto à variação das médias de branqueamento ao longo do tempo, mas a dinâmica de variação exibiu padrões semelhantes 2014-12-17T14:33:09Z 2014-02-06 2014-12-17T14:33:09Z 2012-06-18 masterThesis SOUZA, Izabel Maria Matos de. Evaluation of coverage and monitoring of coral bleaching in Maracajaú/RN reefs. 2012. 62 f. Dissertação (Mestrado em Bioecologia Aquática) - Universidade Federal do Rio Grande do Norte, Natal, 2012. https://repositorio.ufrn.br/jspui/handle/123456789/14046 por Acesso Aberto application/pdf application/pdf Universidade Federal do Rio Grande do Norte BR UFRN Programa de Pós-Graduação em Ecologia Bioecologia Aquática |