Accession Number:

ADA361709

Title:

Mesoscale Structure of Zooplankton In the California Current.

Descriptive Note:

Corporate Author:

NEW HAMPSHIRE UNIV DURHAM

Personal Author(s):

• Bucklin, Ann
• Olson, Donald B.
• Clarke, M. E.
• Wiebe, Peter H.

Report Date:

1999-01-01

Pagination or Media Count:

8.0

Abstract:

We are examining how populations of euphausiids maintain high concentrations in coastal regions of the California Current despite the highly advective field. We are testing the hypothesis that mesoscale eddies and coastal counter currents create retention cells, where growth and reproduction are rapid and mortality is reduced. The immediate objective is to produce a data set on the biomass, population genetics, and physiological condition of the targeted euphausiids across the boundary between the eutrophic inshore of the California current and the oligotrophic central gyre waters. This work is supported by ONR Biological Oceanography.

Descriptors:

• *MARINE BIOLOGY
• *BIOACOUSTICS
• *ZOOPLANKTON
• DATA BASES
• COASTAL REGIONS
• OCEAN CURRENTS
• WATER
• POPULATION
• CONCENTRATION(COMPOSITION)
• PHYSIOLOGY
• CALIFORNIA
• HYPOTHESES
• RETENTION(PSYCHOLOGY)
• MORTALITY RATE
• CELLS(BIOLOGY)
• ADVECTION
• GENETICS
• CRUSTACEA

Subject Categories:

• Biology
• Biological Oceanography
• Acoustics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE