Publicação
What zooplankton community can say about the trophic state and water quality? The case of Serra Serrada Reservoir
| Resumo: | Trends in zooplankton community were related to the variations in the trophic state and water quality, during the three phases of Serra Serrada reservoir cycle: (1) The maximum level phase that lasted from January to the beginning of June; (2) the emptying phase from mid-June to the beginning of September and (3) the minimum level phase between mid-September to the beginning of the first autumn/winter rain events. The ratio NCrust/NRot showed the highest role of rotifers in the zooplankton community in the low level phase. The ratio NLargeClad/NClad also showed a decreasing trend in the abundance of large-sized cladocerans for the same mentioned period. Redundancy analysis revealed a strong influence of temperature, chlorophyll a, soluble reactive phosphorous and total phosphorous to the observed significant associations between the zooplankton assemblage and environmental variables. Therefore, zooplankton community is suitable to be used as rapid indicator tools to detect variations in the trophic state and, consequently, in the water quality. |
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| Autores principais: | Geraldes, Ana Maria |
| Outros Autores: | Crsipim, Maria Cristina |
| Assunto: | Serra Serrada reservoir Zooplankton community Trophic state Water quality |
| Ano: | 2018 |
| País: | Portugal |
| Tipo de documento: | documento de conferência |
| Tipo de acesso: | acesso aberto |
| Instituição associada: | Instituto Politécnico de Bragança |
| Idioma: | português |
| Origem: | Biblioteca Digital do IPB |
| Resumo: | Trends in zooplankton community were related to the variations in the trophic state and water quality, during the three phases of Serra Serrada reservoir cycle: (1) The maximum level phase that lasted from January to the beginning of June; (2) the emptying phase from mid-June to the beginning of September and (3) the minimum level phase between mid-September to the beginning of the first autumn/winter rain events. The ratio NCrust/NRot showed the highest role of rotifers in the zooplankton community in the low level phase. The ratio NLargeClad/NClad also showed a decreasing trend in the abundance of large-sized cladocerans for the same mentioned period. Redundancy analysis revealed a strong influence of temperature, chlorophyll a, soluble reactive phosphorous and total phosphorous to the observed significant associations between the zooplankton assemblage and environmental variables. Therefore, zooplankton community is suitable to be used as rapid indicator tools to detect variations in the trophic state and, consequently, in the water quality. |
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