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Harvest of associated wild-fish assemblages in estuarine cage farms: Implications for farm management and livelihood

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Relation http://eprints.cmfri.org.in/11620/
 
Title Harvest of associated wild-fish assemblages in estuarine cage farms:
Implications for farm management and livelihood
 
Creator Nataraja, G D
Sasikumar, Geetha
Rohit, Prathibha
Kademane, Chandrashekar
 
Subject Cage culture
Aquaculture
 
Description Sea-cage farms form attractive habitats for wildfish
populations as they directly provide food-chain
support to the fish community through excess feed
and organic wastes from the sea cages. They also
support wild-fish assemblages indirectly by
enhancing plankton productivity and providing
substrate for biofouling communities. In cagefarming
operations, the farmers realise the major
share of the revenue at the end of the farming
season during harvest of farmed fishes. Aquafarmers
in Karnataka engaged in farming fishes in
cages effectively utilized such ichthyofaunal
aggregations around net-cages. This study was
conducted at Yedamavinahole, Karnataka where
seabass (Lates calcarifer) was reared in rectangular
cages. Modified shore seines known as ‘Iliyabalae’,
which are commonly operated near rocky areas for
finfishes and shellfishes, in the region are used for
harvesting the wild-fish assemblages in the close
proximity of fish cages. Details of gear, fishing
operations, the composition of wild-fish around the
net-cages and average income generation from the
Iliyabalae operations are presented.
 
Publisher Central Marine Fisheries Research Institute
 
Date 2016
 
Type Article
PeerReviewed
 
Format text
 
Language en
 
Identifier http://eprints.cmfri.org.in/11620/1/MFIS%20229-4.pdf
Nataraja, G D and Sasikumar, Geetha and Rohit, Prathibha and Kademane, Chandrashekar (2016) Harvest of associated wild-fish assemblages in estuarine cage farms: Implications for farm management and livelihood. Marine Fisheries Information Service; Technical and Extension Series (229). pp. 14-16. ISSN 0254-380 X