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Universidade Estadual da Paraíba (UEPB) 2012

Estratégias adaptativas do fitoplâncton e aplicação do índice de grupos funcionais : ferramentas para a conservação de ecossistemas rasos do semiárido brasileiro

Melo, Klivia Rilavia Paiva da Silva

Titre : Estratégias adaptativas do fitoplâncton e aplicação do índice de grupos funcionais : ferramentas para a conservação de ecossistemas rasos do semiárido brasileiro

Auteur : Melo, Klivia Rilavia Paiva da Silva

Université de soutenance : Universidade Estadual da Paraíba (UEPB)

Grade : Mestrado em Ciência e Tecnologia Ambiental – MCTA 2012

Résumé
The objective of this study was to analyze the dynamics of phytoplankton functional groups, identifying factors associated with the dominance of the groups, over five years in three shallow semiarid environment .Twenty nine samples collected in bi - monthly intervals were made in each environment, in the period of five years. The abiotic variables that were analyzed : water temperature, pH, electrical conductivity, water transparency, dissolved oxygen, alkalinity, ammonia, nitrate, nitrite, total phosphorus, and orthophosphate. Biotic variables : diversity and a throughout the study period in the Taperoá II dam the cyanobacteria, diatoms and gree algae were the most that contributed on the bio volume. For the Panati pond, the group J was more representative, with high biomass of colonial chlorophytes, also occurring functional groups represented by desmids (P and N)

Mots Clés : Fitoplâncton Indicador biológico Grupos funcionais Índice Q

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