Recovery facilitation of malathion-intoxicated freshwater fish by exposure to hypertonic environment
Braz. j. med. biol. res
;
22(2): 269-73, 1989. ilus
Article
in English
| LILACS
| ID: lil-105585
RESUMO
The possibility of recovery in a hypertonic environment (10-40%NaCl) was investigated in the freshwater fish Oreochromis niloticus acutely intoxicated with the pesticide Malathion (40 ml/l. Survival was significantly higher in 15 g/l NaCl, with a shorter time required to reover posture and swimming, although 20% of revovered animals died on subsequent days.Exposure to a hypertonic environment plus pesticide did not protect the animals. Fish explosed to air until they became unresponsive recovered faster in freshwater than in a hupertnic environment. It os concluded that a hypertonic environmnet only facilitates recovery and that although osmotic mechanisms may explain the results, other possibilities reamin to be investigated
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Index:
LILACS (Americas)
Main subject:
Fishes
/
Hypertonic Solutions
/
Malathion
/
Muscle Contraction
Limits:
Animals
Language:
English
Journal:
Braz. j. med. biol. res
Journal subject:
Biology
/
Medicine
Year:
1989
Type:
Article
/
Congress and conference
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