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Free Content Interactions Between Diel Vertical Migratory Behavior of Marine Zooplankton and the Subsurface Chlorophyll Maximum

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Elevated levels of phytoplankton biomass at the subsurface chlorophyll maximum are a characteristic feature of the environment of zooplankton in areas of the continental shelf where a seasonal thermocline develops. I examined the relationship between diel vertical migration and the chlorophyll maximum, using a pump system, to sample the vertical distribution of zooplankton in thermally stratified regions of the western English Channel. I described the interactions between migratory behavior, feeding rhythms and the vertical structure of the water column, and both inter- and intra-specific behavioral differences were analyzed. I contrasted non-migratory forms resident within the phytoplankton biomass peak with active migrators. The latter group move into the chlorophyll maximum at night, or in a few cases by day, or pass through this region of the water column altogether in the course of their vertical excursions.

Document Type: Research Article

Publication date: November 1, 1988

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  • The Bulletin of Marine Science is dedicated to the dissemination of high quality research from the world's oceans. All aspects of marine science are treated by the Bulletin of Marine Science, including papers in marine biology, biological oceanography, fisheries, marine affairs, applied marine physics, marine geology and geophysics, marine and atmospheric chemistry, and meteorology and physical oceanography.
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