Record Details


Field	Value

Title	Incidence of fish mortality from industrial pollution in Cochin Backwaters

Creator	Unnithan, R. V. Vijayan, M. Radhakrishnan, E. V. Ramani, K. N.

Description	81-83 Incidence of mortality of fish Ambassis gymnocephalus (Lac.), due to industrial pollution, is reported from the upper reaches of Cochin Backwaters. The effluents carrying a heavy load of ammonia at the rate of 432-560 ppm, which is far above the accepted lethal limit of 2.5 ppm, pouring into the incidence area together with many other pollutants such as acids and suspended solids in varying quantities, have changed the hydrographic conditions to extreme toxic proportions so as to cause heavy mortality of the animals in the area. Fish shoal entering the polluted zone could not tolerate the cumulative effect of pollution, resulting in their sudden killing due to asphyxiation. It is suggested that treatment of waste be adopted to recycle and recover the ammonia and other pollutants from the effluent before it is let out into the estuary.

Date	2016-12-30T05:19:14Z 2016-12-30T05:19:14Z 1977-06

Type	Article

Identifier	0975-1033 (Online); 0379-5136 (Print) http://nopr.niscair.res.in/handle/123456789/39350

Language	en_US

Rights	CC Attribution-Noncommercial-No Derivative Works 2.5 India

Publisher	NISCAIR-CSIR, India

Source	IJMS Vol.06(1) [June 1977]

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