Modelagem computacional da dinâmica de um organismo marinho

• Ano de defesa: 2007
• Autor(a) principal: Rio Doce, Ana Paula Camardella
• Orientador(a): Almeida, Regina Célia Cerqueira de
• Banca de defesa: Loula, Abimael Fernando Dourado , Malta, Sandra Mara Cardoso , Struchiner, Cláudio José , Coutinho, Ricardo
• Tipo de documento: Tese
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Laboratório Nacional de Computação Científica
• Programa de Pós-Graduação: Programa de Pós-Graduação em Modelagem Computacional
• Departamento: Serviço de Análise e Apoio a Formação de Recursos Humanos
• País: BR
• Palavras-chave em Português: Animais - Populações; Método dos elementos finitos; Peixe - Populações
• Palavras-chave em Inglês: Animal populations; Finite element methods; Fish populations
• Área do conhecimento CNPq: CNPQ::CIENCIAS BIOLOGICAS::ECOLOGIA::ECOLOGIA DE ECOSSISTEMAS
• Link de acesso: https://tede.lncc.br/handle/tede/85

Most marine benthic invertebrates have a complex life cycle in which the adult phase is preceded by a planktonic larval phase. The passive nature of larval dispersal of these species results in a larval transport governed by hydrodynamic processes like advection and eddy diffusion. The recruitment depends on a variety of physical and biological factors, which include spawning, larval dispersal and survival, larval settlement, metamorphosis, post-settlement events, inter-specific and intra-specific competitions. In order to assess interactions between oceanographic and biological processes that determine the population dynamics of marine organisms with a sessile adult phase restricted to the coastline and a planktonic larval phase, we develop a stage-structured finite element model for the barnacle Balanus glandula that inhabits the rocky intertidal zone of central California, USA. As the larval dispersal depends on knowing the flow pattern, we also develop a numerical procedure to couple physical and biological models in a very simple way when the velocity flow field is known of some discrete points of the domain of interest and at a given time. We investigate the effects of different flow patterns and velocity speeds on the abundance and the distribution of this organism as well as the influence of other abiotic interactions such as temperature and habitat quality. The interplay of different intra- and inter-specific competitions is also addressed.