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Food and feeding habits of two cyprinid forage fishes puntius filamentosus val. and puntius amphibius val. from south kerala india



Food and feeding habits of two cyprinid forage fishes puntius filamentosus val. and puntius amphibius val. from south kerala india



Netherlands Journal of Zoology 36(4): 449-460



Food and feeding habits of Puntius filamentosus and P. amphibius were investigated. Both species were found to be omnivores, with emphasis on filamentous algae and higher plants in P. filamentosus and on detritius in P. amphibius. Differences in diet compositions and feeding intensities were found according to sizes of the fish and through the year. Niche segregation of these two co-occurring species was found to center on spatial segregation (clear vs turbid waters) and feeding substrates (column vs bottom). For the rest the diets seem to be largly governed by food availability and accessibility. Little evidence was found for the existence of adaptations reducing competition between size groups of the same species or adaptive relationships between food intake and breeding season.

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Accession: 005475591

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