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Article Title

Temporal Changes in Diet and Foraging Habitat of California Killifish {Fundulns parvipinnis) in Marina del Rey, California

Volume

97

Issue

1

First Page

1

Last Page

8

Abstract

Feeding habits of the California kilUfish, Fimduhis parvipinnis Girard, in Marina del Rey were examined relative to season and prey availability. Tem- poral changes in diet coincided with ontogenetic shifts in foraging habitats. Ju- venile fish fed selectively on relatively rare planktonic harpacticoid copepods and surface dwelling insects, whereas diets of adults were dominated by benthic prey taxa, principally tanaids. The seasonal availability of some prey taxa and the active selection of others associated with a particular foraging habitat affected the type and size of prey consumed. Our results indicate that patterns of prey use are not simple responses to seasonal changes in prey abundance.