Selective feeding and grazing rates of oyster (Crassostrea virginica) larvae on natural phytoplankton assemblages

L. W. Fritz, R. A. Lutz, M. A. Foote, C. L. van Dover, J. W. Ewart

Research output: Contribution to journalArticle

25 Scopus citations

Abstract

Results of laboratory feeding experiments suggest that oyster (Crassostrea virginica) larvae select small phytoplanktonic organisms (<10 μm) over larger-celled forms from natural estuarine assemblages, but that little selection occurs within the small phytoplankton fraction. Laboratory-reared larvae grazed each of five small-celled phytoplankton groups enumerated (coccoids, centrate diatoms, pennate diatoms, dinoflagellates, and flagellates) at rates proportional to phytoplankton group densities in controls (no larvae added). Larval grazing rates (number of cells removed per larva per hour) were inversely proportional to both larval density and experimental duration.

Original languageEnglish (US)
Pages (from-to)513-518
Number of pages6
JournalEstuaries
Volume7
Issue number4
DOIs
StatePublished - Dec 1 1984
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Environmental Chemistry
  • Aquatic Science
  • Environmental Science(all)

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