Seasonal changes of percent prey-specific abundance (%Pi) versus the relative frequency of occurrence (%F) for Pacific anchovy, Engraulis japonicus, from the southern waters of Korea. Abbreviations: Coscin. = Coscinodiscus, C. sinicus = Calanus sinicus, P. orientalis = Paracalanus orientalis, D. affinis = Ditrichocorycaeus affinis, Harpac. = harpacticoid copepods, Di. sp. = Ditrichocorycaeus sp., Calanoids = calanoid copepods, Bi. larvae = bivalve larvae, Co. eggs = copepod eggs, E. pacifica = Euphausia pacifica, De. larvae = decapod larvae.