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Os pesque-pagues representam uma importante atividade de lazer, porem podem causar impactos ambientais. Uma importante ferramenta para o monitoramento da qualidade da agua e a analise de seus parâmetros fisico-quimicos, os quais podem interferir na dinâmica das populacoes aquaticas (MATSUZAKI et al., 2004). O objetivo deste trabalho foi avaliar a qualidade fisico-quimica da agua tanques de criacao de peixes em pesque-pagues (PPs) na regiao nordeste do Estado de Sao Paulo. Amostras de agua foram colhidas de todos os tanques em cinco PPs nos periodos seca (Junho a Agosto/2008) e chuva (Novembro a Marco/2009) e verificados os valores de pH, temperatura, oxigenio dissolvido (OD) (com auxilio de pHmetro, termometro e oximetro portateis, respectivamente) e turbidez (HACH, 1991). A temperatura da agua variou de 16,7 a 27,9oC na seca e 23,4 a 32,6oC na chuva, que ocorreu na estacao verao. A concentracao de OD variou de 1,8 mg.L -1 e 9,3 mg.L -1 (chuva) e 2,5 mg.L -1 e 9,6 mg.L -1 (seca), estando os PP1, PP3 e PP4 em desacordo com a Resolucao CONAMA 357/05 (minimo 5,0 mg.L -1 , agua de classe 2) nas duas estacoes. O pH deve estar entre 6,0 e 9,0 (BRASIL, 2005), e variou de 6,1 a 7,9 (seca) e de 6,0 a 7,9 (chuva), sendo que em todos os PPs os valores encontram-se dentro do limite satisfatorio para a criacao de peixes. Os valores de turbidez oscilaram entre 0,42 e 93,3 NTU (seca) e 0,28 a 67,2 NTU (chuva) e mantiveram-se de acordo com a Resolucao CONAMA 357/05 (BRASIL, 2005) (aceitavel ate 100 NTU, para aguas de classe 2). Conclui-se que, exceto pelo OD, as variaveis estavam de acordo com a legislacao vigente nas estacoes da seca e chuva, sendo necessario o monitoramento periodico da agua a fim de preservar sua qualidade. SUMMARY Sport fishing is an important leisure activity that can cause environmental impact. An important tool for monitoring the water quality of these areas is the analysis of its physico-chemical parameters, which may interfere with the dynamics of aquatic populations (MATSUZAKI et al., 2004). This study aims to evaluate the physico-chemical parameters and determine the water quality of tanks used for raising fish in sport fishing farms (PPs) in northeastern Sao Paulo state. Water samples were collected from all tanks in five PPs during dry (June to August, 2008) and rain (November to March 2009) seasons. The following water parameters were determined: pH, temperature, dissolved oxygen (DO) (using a pHmeter, thermometer and a handset oximeter, respectively) and turbidity (HACH, 1991). Water temperature ranged from 16.7 to 27.9°C in the dry season and between 23.4 and 32.6°C in the rain season, during the summer in Brazil. DO concentration ranged from 1.8 mg.L -1 to 9.3 mg.L -1 (rain) and 2.5 mg.L -1 to 9.6 mg.L -1 (dry). From the 5 PPs tested, PP1, PP3 and PP4 DO levels were not within the limit established by CONAMA Resolution 357/05 (minimum 5.0 mg.L -1 , for class 2 water) in either season. The pH should be between 6.0 and 9.0 (BRAZIL, 2005), and ranged from 6.1 to 7.9 (dry) and from 6.0 to 7.9 (rain) for all tested PPs; therefore, within the limits suitable for fish farming. The turbidity values ​​ranged from 0.42 to 93.3 NTU (dry) and 0.28 to 67.2 NTU (rain) and were within the range established by CONAMA Resolution 357/05 (BRAZIL, 2005) (acceptable up to 100 NTU for class 2 waters). We conclude that, except for the DO, all other water variables were in accordance with the current legislation for dry and rainy seasons; nonetheless, periodic monitoring of the water should be performed in order to preserve its quality.