Food of freshwater fishes in the three floodplain lakes in Agusan Marsh, Philippines were identified and quantified. Different types of gear, namely, two types of hook and line, traps and scoop nets were used to collect samples. Results indicated that the volume of food in the guts of Channa striata, Trichogaster pectoralis, Trichogaster trichopterus, Anabas testudineus, Oreochrotnis niloticus and Clarias batracitus was generally larger during flood months than during the dry season. Feeding activity varies as water level fluctuates. Incidence of empty stomachs in Channa striata markedly increased as the dry season proceeded. Relative importance index showed that in the floodplain ecosystem, the utilization of detritus especially among belontids, cichlids and cyprinids was high.
Cinq espèces de copépodes calanoides de l'eau douce des Philippines, avec leurs distributions et leur taxonomies, sont décrites. Deux espèces d'entre eux, Tropodiaptomus gigantoviger et Filipinodiaptomus insulanus n. g., sont endèmes pour les îles des Philippines. T. vicinus est abondant dans les provinces du sud. Monglodiaptomus birulai est présent seulement dans les endroits isolés à côté de la Ville Baguio. Une clé taxonomique pour les copépodes calanoides de l'eau douce des îles des Philippines est formulé.
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