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The feeding and food requirements of the young smallwing flyingfish Oxyporhamphus micropterus micropterus Val. (Hemirhamphidae)


, : The feeding and food requirements of the young smallwing flyingfish Oxyporhamphus micropterus micropterus Val. (Hemirhamphidae). Voprosy Ikhtiologii, 204: 670-678

Food spectrum and daily feeding rhythm were determined in young O. m. micropterus (Val.) from the epipelagic zone of the Pacific and Indian Oceans. Food included Siphonophora, Copepoda, Pontellidae nauplii, Copepoda nauplii, Gastropoda larvae, Pteropoda larvae, Lamellibranchia larvae, Appendicularia. Young small wing flying fish fed only during daylight hours and the time of onset of feeding depended on geographical latitude. The duration of the most effective digestion of food at 28 .+-. 2.degree. C was 2-2.5 h. Food requirements were not less than 60% of body weight in larvae weighing up to 10 mg and 40-45% in young weighing 40-100 mg at an 80% level of assimilation of food.

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