Controls upon the Fine-Scale Distribution of Epizooplankton

Abstract

Our general objective in this report has been to understand: (1) the biological and physical mechanisms controlling the fine-scale (1-10m) distribution of epizooplankton, (2) the ecological significance of these distributions, and (3) the affect of these distributions upon the fate of particles (phytoplankton) within the upper water column. More specifically our research has been directed at answering the following questions: (1) Do physical gradients influence zooplankton distributions directly or indirectly? (2) Is the vertical distribution of zooplankton controlled by density gradients or loci of current shear situated within steep density gradients? (3) How strong a physical gradient must exist and how long must it persist to influence the zooplankton distribution?

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1989
Accession Number
ADA238226

Entities

People

  • Peter B. Ortner

Organizations

  • Rosenstiel School of Marine, Atmospheric, and Earth Science

Tags

DTIC Thesaurus Topics

  • Acquisition
  • Arabian Sea
  • Atmospheric Sciences
  • California
  • Far Field
  • Field Tests
  • Frequency
  • Gulf Stream
  • Humic Acid
  • Measurement
  • Oceanography
  • Particles
  • Plankton
  • Spatial Distribution
  • Spectra
  • Water Masses
  • Zooplankton

Readers

  • Fluid Dynamics.
  • Marine Ecotoxicology