(Table 1) Results of measurements of production characteristics of phytoplankton and some physical parameters of the environment in the northeastern Norwegian Sea in July 1995


From July 4 to 18,1995 surface chlorophyll a concentrations (C_cs) and integral primary production (C_ps) were studied in the northeastern part of the Norwegian Sea (73°42'N; 13°16'E), over a test area where an accident of the nuclear submarine Komsomolets had taken place. It was found that during this interval C_cs decreased by factor of about 3.3 (from 0.78 to 0.24 mg/m3); average chlorophyll concentration within the photo-synthetic layer (C_cl) decreased by factor of about 3.5 (from 0.97 to 0.28 mg/m3). The value of C_ps in the water column varied slightly (from 445 to 539 mg C/m2 per day), since decrease in C_cl was compensated both by 1.5-fold growth of the photosynthetic layer thickness (from 40 to 60 m) and by 2.1-fold increase in its average assimilation number (from 0.58 to 1.20 mg C/mg chl a per hour). Monthly averages of C_ps were obtained from published data on seasonal C_cs changes and on the level of incident solar irradiation. They were found to be less than 100 mg C/m2 per day in March and October and 100-500 mg C/m2 per day in April-June. Annual primary production calculated from above values was equal to 105 g C/m2.

Supplement to: Vedernikov, Vladimir I; Demidov, A B (1997): Primary production and chlorophyll in the northeastern Norwegian Sea in July 1995. Translated from Okeanologiya, 1997, 37(2), 250-256, Oceanology, 37(2), 227-232

DOI https://doi.org/10.1594/PANGAEA.760106
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.760106
Creator Vedernikov, Vladimir I; Demidov, A B (ORCID: 0000-0002-1370-079X)
Publisher PANGAEA
Publication Year 1997
Rights Creative Commons Attribution 3.0 Unported; https://creativecommons.org/licenses/by/3.0/
OpenAccess true
Resource Type Supplementary Dataset; Dataset
Format text/tab-separated-values
Size 60 data points
Discipline Earth System Research
Spatial Coverage (13.267 LON, 73.700 LAT); Norwegian Sea
Temporal Coverage Begin 1995-07-04T00:00:00Z
Temporal Coverage End 1995-07-18T00:00:00Z