Influence of a net cage tilapia culture on the water quality of the Nova Avanhandava reservoir, São Paulo State, Brazil

Mallasen, Margarete; de Barros, Helenice Pereira; Traficante, Daniela Polizeli; Camargo, André Luiz Scarano
July 2012
Acta Scientiarum: Biological Sciences;2012, Vol. 34 Issue 3, p289
Academic Journal
In order to understand the influence of a net cage tilapia culture on the environment, water quality parameters were investigated during the period between December, 2005 and November, 2007. Three sampling stations were established in the reservoir of Nova Avanhandava (Zacarias, São Paulo State) as follows: upstream of net cage area (P1), in the rearing place (P2) and downstream of net cage area (P3). The mean values of the parameters examined in the water sampling stations were within the standards of water quality recommended by resolution no. 357/2005 of the Conselho Nacional do Meio Ambiente for class 2 freshwater bodies. A significantly higher mean concentration of total phosphorus (p < 0.05) in the P2 (0.035 mg L-1) was the result of the uneaten feed and feces of fish. The average concentration of total phosphorus in P3 was lower (0.015 mg L-1), which was assimilated by the aquatic ecosystem. The frequent monitoring of the water parameters is fundamental, so the producer can adjust the management according to environmental conditions, by reducing fish density or changing feeding rates for example, to mitigate or avoid water quality deterioration.


Related Articles

  • Tilápia em reservatório de água para irrigação e avaliação da qualidade da água. Filho, Ruy Cardoso; Campeche, Daniela F. B.; Paulino, Renata V. // Brazilian Journal of Agricultural Sciences / Revista Brasileira ;jan/mar2010, Vol. 5 Issue 1, p117 

    This research was carried out aiming to evaluate tilapia production in irrigation water reservoir, improving the productivity in small scale family farms. Tilapia juveniles (3.600) with 8.10 g of initial weight were put in a water reservoir with useful volume of 1,170 m3 and bred for seven and...

  • Microbiological water quality and gill histopathology of fish from fish farming in Itapecuru-Mirim County, Maranhão State. Santos, Débora Martins Silva; Cruz, Cristiano Ferreira; Pereira, Dayane Pestana; Alves, Lúcia Maria Coelho; de Moraes, Flávio Ruas // Acta Scientiarum: Biological Sciences;2012, Vol. 34 Issue 2, p199 

    The present study evaluated the microbiological water quality and tissue lesions in gills from Nile tilapia (Oreochromis niloticus) and hybrid tambacu (Colossoma macropomum female x Piaractus mesopotamicus male). For this, water and gills were collected from fish farming at six locations in...

  • Seasonal variation on the ectoparasitic communities of Nile tilapia cultured in three regions in southern Brazil. Jerônimo, G. T.; Speck, G. M.; Cechinel, M. M.; Gonçalves, E. L. T.; Martins, M. L. // Brazilian Journal of Biology;May2011, Vol. 71 Issue 2, p365 

    A total of 240 Nile tilapia were examined between April 2007 and March 2008, gathered from three different fish farms, 20 fish in each fish farm, in the four seasons of the year. Fish ponds were located in Joinville, Blumenau and ltuporanga, Santa Catarina state, Brazil and each pond had a...

  • Growth performance of Nile tilapia, Oreochromis niloticus, fingerlings reared in Na2CO3 limed waters. de Holanda Cavalcante, Davi; Barros, Renan Loiola; do Carmo e Sá, Marcelo Vinícius // Acta Scientiarum: Animal Sciences;Jul-Sep2010, Vol. 32 Issue 3, p331 

    Current experiment was undertaken during 6 weeks with Nile tilapia, Oreochomis niloticus, fingerlings (1.28 ± 0.03 g) to assess the effects of moderate Na2CO3 liming on water quality and fish growth performance. Twenty-four 25 L-aquaria, with 15 fish per aquarium, were used, of which twelve...


    The study presents assessment of water quality and ecologic potential of artificially reconstructed small, glacial mid-field water reservoirs, rebuilt in 1999-2000, near the village of Nienawiszcz in Rogoźno municipality in Wielkopolska. Assessment was based on research and analysis carried...

  • Interaction between feeding rate and area for periphyton in culture of Nile tilapia juveniles. Rebouças, Vanessa Tomaz; Caldini, Nayara Nunes; de Holanda Cavalcante, Davi; da Silva, Francisco Jackes Rodrigues; do Carmo e Sá, Marcelo Vinícius // Acta Scientiarum: Animal Sciences;Apr-Jun2012, Vol. 34 Issue 2, p161 

    The objective of the present work was to determine the effects of the interaction between feeding rate and area for periphyton in rearing aquaria for Nile tilapia. Twenty 25 L polyethylene outdoor aquaria were used to hold experimental fish. Three tilapia fingerlings (2.56 ± 0.14 g) were...

  • VARIÁVEIS HIDROLÓGICAS FÍSICO-QUÍMICAS NA CRIAÇÃO DA TILÁPIA-DO-NILO NO SISTEMA RACEWAY COM DIFERENTES RENOVAÇÕES DE ÁGUA. Oliveira, Raquel Priscila Castro; Silva, Paulo César; de Brito, Priscila Policarpo; Gomes, Jacqueline Pereira; da Silva, Renata Fernandes; Filho, Paulo Roberto Silveira; dos Santos Roque, Rogério // Ciência Animal Brasileira;2010, Vol. 11 Issue 3, p482 

    This experiment was carried to evaluate the hydrological alterations in the production of Nile tilapia (Oreochromis niloticus) in raceway, with different rates of water exchanges, to estimate the impact of this system on water quality. Four treatments with total exchange of water at 30, 90, 120...

  • Tolerance of Nile tilapia juveniles to highly acidic rearing water. Rebouças, Vanessa Tomaz; dos Santos Lima, Francisco Roberto; de Holanda Cavalcante, Davi; do Carmo e Sá, Marcelo Vinícius // Acta Scientiarum: Animal Sciences;Jul-Sep2015, Vol. 37 Issue 3, p227 

    The present work aimed at determining the tolerance of Nile tilapia juveniles to highly acidic rearing waters and the effects of water acidity on the quality of tank effluents. The experimental design consisted of four treatments with different water pH values (4.12 ± 0.84; 5.13 ± 0.74;...

  • Streptococcosis in Tilapia (Oreochromis niloticus): A Review. Amal, M. N. A.; Zamri-Saad, M. // Pertanika Journal of Tropical Agricultural Science;Aug2011, Vol. 34 Issue 2, p95 

    Tilapia (Oreochromis niloticus) is a hardy, most cultured freshwater fish in the world. It has been contributing to the world aquaculture since the ancient Egyptian days and remains a major freshwater fish species to be cultured. Although tilapias are more resistant to unfavourable water quality...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics