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Experimental studies on Macro fouling communities on\ud net panels at marine cage farm of Karwar, India

By S M Sonali, Jayasree Loka, K K Philipose and A P Dineshbabu

Abstract

A study was undertaken on the fouling pattern, monthly settlement and species dominance at marine cage\ud culture during the year 2014-2015. The net panels deployed at three different depths during December\ud 2014 and the study was carried out for seven months. The study revealed wide variations in colonization\ud of the bio-foulers, the density varied between 2-260/cm2. The overall density was found to be more in\ud bottom panels (6mt) compared to the top (1mt) and middle panels (3mt). The overall dominant species\ud were hydroids and barnacles throughout the culture period. In the top panels, hydroids were dominant\ud (91.67%) during December, followed by barnacles and amphipods. Additionally, complete dominance of\ud barnacles was observed in the middle panel during May. Barnacles were found dominant (93.75%) on the\ud bottom panels during March, followed by hydroids and crabs. The study underscored that barnacles\ud formed a major contribution of the fouling organisms throughout the culture period. Significant variation\ud in the occurrence and abundance of fouling organisms was observed, between the depths at cage sit

Topics: Cage culture, Aquaculture, Algal Culture
Year: 2017
OAI identifier: oai:eprints.cmfri.org.in:12035

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