Controls upon the Fine-Scale Distribution of Epizooplankton
1989
Ortner, Peter B.
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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