Microplanktonic ATP-Biomass and GTP-Productivity Associated with Upwelling off Pt. Sur, California.

Abstract

Microplanktonic ATP-biomass and GTP-productivity were studied in upwelling features off Pt. Sur, California. Biomass, determined by adenosine triphosphate (ATP) and chlorophyll a, was found to have a definite preferential location in the strong gradients of temperature and nutrients on the equatorward edge of the feature. Productivity, as sampled using the new method of guanosine triphosphate (GTP) sampling was found to be high throughout the thermo-nutrient gradient associated with an upwelling feature in an early stage of development. The measurement of productivity and 'growth potential' using GTP and GTP/ATP ratios was found to be a valuable tool in examining rapidly changing upwelling features. Preliminary results obtained using the GTP technique suggests a relationship between the flux of nutrients across ocean fronts and planktonic productivity associated with frontogenic coastal upwelling systems. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1980
Accession Number
ADA093585

Entities

People

  • Sherman Hughes Bronsink

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • Space

DTIC Thesaurus Topics

  • Adenosine
  • California
  • Chemical Compounds
  • Chemistry
  • Chlorophylls
  • Engineering
  • Equations
  • Guanosine
  • Measurement
  • Navy
  • Oceanography
  • Productivity
  • Sampling
  • Sea Surface Temperature
  • Surface Temperature
  • United States
  • Upwelling

Fields of Study

  • Biology

Readers

  • Oceanography.
  • Parasitology and Pharmacology of Malaria.