Diet of juvenile fishes Citharichthys spilopterus, Symphurus plagiusa, and Gobionellus boleosoma

  • Toepfer C
  • Fleeger J
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Abstract

The gut contents of juvenile Citharichthys spilopterus, Symphurus plagiusa, and Gobionellus boleosoma from a Louisiana estuary were quantified. Juveniles from 10-49 mm standard length fed on dif. components of meiofauna or zooplankton, and only one species, C.spilopterus , exhibited a clear ontogenetic feeding shift to larger prey. C. spilopterus up to about 30 mm standard length fed primarily on zooplanktonic copepods and then mysid shrimp became the dormant prey. S. plagiusa fed primaril on epibenthic/hyperbenthic harpacticoid copepods, and G.boleosoma fed mostly on on meioauna, primarily benthicharpacticoids.

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Authors

  • C. S. Toepfer

  • J. W. Fleeger

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