Differential response of Tilapia guineensis fingerlings to inorganic fertilizer under various salinity regimes.
J Environ Biol
;
2006 Oct; 27(4): 687-90
Artigo
em Inglês
| IMSEAR
| ID: sea-113258
ABSTRACT
The influence of salinity on the response of the estuarine teleost, Tilapia guineensis fingerlings to acute toxic effects of inorganic nitrogen-phosphorus-potassium (NPK) (15 15 15) fertilizer was investigated using semi-static bioassay. The toxicity of NPK fertilizer was found to increase significantly with increase in the salinity level from 0.05 %. to 32.4 %o. The 96 hr LC50 value at salinity of 32.4 %o was 0.11 mg/l and was found to be significantly (p < 0.05) higher than the toxicity values at any other salinity level of media evaluated. The implication of the findings is that pollution control standards and/or safe limits for brackish water ecosystem should consider variations in salinity regimes for greater relevance and reliability.
Texto completo:
DisponíveL
Índice:
IMSEAR (Sudeste Asiático)
Assunto principal:
Fósforo
/
Potássio
/
Água do Mar
/
Cloreto de Sódio
/
Tilápia
/
Aquicultura
/
Fertilizantes
/
Animais
/
Nitrogênio
Idioma:
Inglês
Revista:
J Environ Biol
Ano de publicação:
2006
Tipo de documento:
Artigo
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