Production of pacus and tambacus in cage culture in the southern region of the state of são paulo
Carregando...
Arquivos
Fonte externa
Fonte externa
Data
Orientador
Coorientador
Pós-graduação
Curso de graduação
Título da Revista
ISSN da Revista
Título de Volume
Editor
Tipo
Artigo
Direito de acesso
Arquivos
Fonte externa
Fonte externa
Resumo
The study aimed to evaluate physical and chemical water conditions of a rural reservoir utilized for cage fish culture in Pariquera-Acu, SP. In this place 12 cages of 4 m3 were installed and stocked with 300 pacus e 300 tambacus per 12,5 kg/m3, during the period of 180 days. To determine reservoir water quality five points of collection were analyzed every month: water supply, fish rearing area divided into three depths (10 cm, 70 cm and 150 cm) and effluent. Averages of analyzed parameters ± standard deviation were: dissolved oxygen, 6.83 ± 0.7 mg O2D L-1; maximum and minimum temperature, 27,20 ± 2,08 and 21,38 ± 1,34 ºC, respectively; hydrogenionic potential, 6,45 ± 0,74; transparency, cm; total alkalinity, 19,26 ± 9,40 mg CaCO3 L-1; electric conductivity, 49,38 ± 3,60 μS cm-1; total ammonia, 0,002 ± 0,004 mg L-1, total dissolved phosphorus 0,01 ± 0,01 mg L-1.Calculated Trophic Estate Index was 49,3 ± 7,3 . We conclude that pacus e tambacus cage culture did not compromise the water quality of rural reservoir. However animal production good practices and environmental monitoring should be followed for a sustainable fish culture.
Descrição
Palavras-chave
Limnology, Ponds, Sustainable aquaculture
Idioma
Português
Citação
Archivos de Zootecnia, v. 69, n. 267, p. 288-292, 2020.
