Abstract
An examination was made of the stomach contents of the larvae of the plaice Pleuronectes platessa Linnaeus, 1758; the flounder Platichthys flesus (Linnaeus, 1758), the dab Limanda limanda (Linnaeus, 1758), and the sole Solea solea (Linnaeus, 1758) collected in the eastern English Channel and in the Southern Bight during the winter and spring of 1971. These 4 species of flat fish have distinct diets, and competition for food between them is largely avoided. Plaice larvae fed almost exclusively on Oikopleura dioica; flounder larvae also ate O. dioica, but in addition a wide range of planktonic organisms including phytoplankton, polychaete larvae, lamellibranch larvae, and copepod nauplii. Dab larvae fed mainly on the nauplii and copepodite stages of a variety of copepods, but particularly of Temora longicornis. Some T. longicornis copepodites and polychaete larvae were eaten by sole larvae, but the principal prey of these was lamellibranch larvae. The larvae of all the species began to feed in the yolk-sac stage; the initial food of all except plaice consisted of dino-flagellates, followed by tintinnids and copepod nauplii. Feeding began at dawn and the number of feeding fish and the number of food organisms in their stomachs increased throughout the day to a maximum near sunset. There were no consistent differences between the two areas in the diets of any of the species.
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Communicated by J.H.S. Blaxter, Oban
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Last, J.M. The food of four species of pleuronectiform larvae in the eastern English Channel and southern North Sea. Mar. Biol. 45, 359–368 (1978). https://doi.org/10.1007/BF00391822
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DOI: https://doi.org/10.1007/BF00391822