VARIAÇÃO SAZONAL DA CARAVELA Physalia physalis (LINNAEUS, 1758) EM PRAIAS URBANAS AMAZÔNICAS.

• Ano de defesa: 2018
• Autor(a) principal: SILVA, Fabio de Almeida e
• Orientador(a): NUNES, Jorge Luiz Silva
• Banca de defesa: NUNES, Jorge Luiz Silva , PIORSKI, Nivaldo Magalhães , PARISE, Cláudia Klose , COSTA, Luís Fernando Carvalho
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal do Maranhão
• Programa de Pós-Graduação: PROGRAMA DE PÓS-GRADUAÇÃO EM OCEANOGRAFIA
• Departamento: DEPARTAMENTO DE BIOLOGIA/CCBS
• País: Brasil
• Palavras-chave em Português: aglomerações; colônias juvenis; Litoral Amazônico brasileiro
• Palavras-chave em Inglês: agglomerations; juvenile colonies; Brazilian Amazonian Coast
• Área do conhecimento CNPq: Interação entre os Organismos Marinhos e os Parâmetros Ambientais.
• Link de acesso: https://tedebc.ufma.br/jspui/handle/tede/2354

In the Amazonian urban beaches has been observed the occurrence of agglomerations of Portuguese man-of-war Physalia physalis) throughout the year. These organisms are known due to the numerous cases of accidents involving humans, mainly on the coast of the north and northeast regions of Brazil. The present study aimed to characterize the seasonal distribution of the Portuguese man-of-war and the interactions of abiotic factors in its agglomeration. The abundance data were obtained with fortnightly samplings by means of active search in the beaches during the years of 2005, 2006, 2007, 2012, 2013, 2015 and 2016. Each colony had its biometric data recorded for characterization regarding the presence of juveniles and adults. Abiotic data were obtained from a meteorological station near to the beaches, and the data set was analyzed using the statistical model of linear regression for the understanding of the agglomerations on the beaches. Finally, we conclude that the Portuguese man-of-war colonies are present throughout the year, and its seasonality is evidently marked by the occurrence of greater abundances in second half of the year, and the influence of the northeast trade winds. In addition, it is verified that part of the agglomerations is influenced by the several reproductive events that occur throughout the year.