PRIMARY PRODUCTION AND CHLOROPHYLL IN THE NORTH ATLANTIC IN JULY 2014 ACCORDING TO DATA OF 44TH CRUISE OF R/V «AKADEMIK IOFFE»

  • A. B. Demidov Shirshov Institute of Oceanology, Russian Academy of Sciences
  • V. I. Gagarin Shirshov Institute of Oceanology, Russian Academy of Sciences
DOI 10.29006/1564-2291.JOR-2018.46(1).3
Keywords primary production, chlorophyll, chlorophyll specific carbon fixation rate

Abstract

Data were obtained during 44th cruise of «Akademik Ioffe» from 4 to 15 of July 2014 along 59.5°N. Surface chlorophyll concentration changed by more than one order of magnitude, from 0.06 to 2.12 mg/m3. Surface primary production varied from 2.88 to 31.44 mgC/m3 per day. Water column primary production changed from 32 to 443 mgC/m2 per day and the average value of this parameter was equal to 265 mgC/m2 per day. Euphotic layer integrated chlorophyll concentration varied from 6.11 to 64.60 mg/m3. High water column stratification restricted nutrient flux to the euphotic layer in the investigated area in the middle of summer.

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Published
2018-06-04