| Texto completo | |
| Autor(es): |
Sipauba-Tavares, Lucia Helena
[1]
;
Alves da Silva, Juliane dos Santos
[1]
;
Millan, Rodrigo Ney
[2]
;
de Mendonca, Gislaine Costa
[1]
Número total de Autores: 4
|
| Afiliação do(s) autor(es): | [1] Univ Estadual Paulista UNESP, Ctr Aquicultura CAUNESP, Via Acesso Prof Paulo Donato Castellane S-N, BR-14884900 Jaboticabal, SE - Brazil
[2] Univ Estado Minas Gerais UEMG, Unidade Frutal, Dept Ciencias Exatas & Terra, Av Escocia 1000, BR-38202436 Frutal, MG - Brazil
Número total de Afiliações: 2
|
| Tipo de documento: | Artigo Científico |
| Fonte: | BOLETIM DO INSTITUTO DE PESCA; v. 47, 2021. |
| Citações Web of Science: | 0 |
| Resumo | |
Water samples, zooplankton community and sediment samples were analyzed at three sites in a pond receiving wastes, bi-weekly for seven months, covering the rainy and dry seasons. Water quality parameters failed to show significant differences between the sites for turbidity, total suspended solids, dissolved oxygen, transparency, conductivity, alkalinity and total phosphorous. Only temperature was different between the seasons. In the case of sediment, only aluminum (Al) was not different during the experimental period when highest calcium (Ca) concentrations were reported. The relative abundance of Rotifera during the sampling period reached 80-96% (rainy season) and 59-98% (dry season) in total zooplankton. Current study demonstrated that the water quality of shallow pond associated with allochthonous materials from aquaculture farm significantly influenced the structure of zooplankton assemblage due to high nutrient concentrations, conductivity, alkalinity and chlorophyll-a causing more fertilized water. However, heavy rains (February-April) and continuous water flow favored aeration (dissolved oxygen > 5.2 +/- 1 mg L-1). The use of pond water for agricultural irrigation or for other purposes, must be analyzed more effectively, avoiding problems caused by its usage. (AU) | |
| Processo FAPESP: | 14/24697-3 - Uso biotecnológico das macrófitas em aquicultura |
| Beneficiário: | Lúcia Helena Sipaúba Tavares |
| Modalidade de apoio: | Auxílio à Pesquisa - Regular |