Reproductive behaviour and interactions of the indigenous Etroplus suratensis and Etroplus maculatus,and the exotic cichlid Oreochromis mossamdicus in the Batticaloa lagoon, Sri Lanka .
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Reproductive behaviour and interactions of the indigenous Etroplus suratensis and Etroplus maculatus,and the exotic cichlid Oreochromis mossamdicus in the Batticaloa lagoon, Sri Lanka .
