Studies on the infestation of an isopod crustacean, Cirolana fluviatilis in some parts of the Cochin backwaters, Kerala

Mathew, K J and Selvaraj, G S D and Naomi, T S and Varghese, Molly and Sridhar, N and Sridhar, Manpal and Antony, Geetha and Leelabhai, K S and Anilkumar, R and Solomon, K (1994) Studies on the infestation of an isopod crustacean, Cirolana fluviatilis in some parts of the Cochin backwaters, Kerala. Marine Fisheries Information Service, Technical and Extension Series, 131. pp. 1-10.

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Abstract

In July 1994 reports appeared in the media about the large scale occurrence of a tiny 'antlike fish killer' in the Kumbalangi-Perumpadappu area of the Cochin backwaters causing threat to the aquatic living resources.The CMFRI initiated an investigation on the problems. The isopod C.Jluviatilis is a commonly occurring organism in the Cochin backwaters and elsewhere. It is a voracious carnivore which if present in very large numbers can cause a threat to the living resources in the estuarine water area. Population explosion of this isopod has now taken place in the Kumbalangi - Perumpadappu area. The reason for the unprecedented population explosion of this isopod in the Kumbalangi- Perumpadappu area is the recent changes taken place in the ecosystem there.

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