(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 ...

• Main Authors: Vedernikov, Vladimir I, Demidov, A B
• Format: Dataset
• Language: English
• Published: PANGAEA 1997
• Subjects: Event label; Latitude of event; Longitude of event; Date/Time of event; Primary production of carbon; Primary production of carbon per area, daily; Chlorophyll a; Assimilation rate of carbon per chlorophyll a; Photosynthesis layer, thickness; Depth of Secchi Disk; Depth of the euphotic zone; Temperature, water; Salinity; Multiple investigations; 14C in-situ incubation; Spectrophotometry; Calculated; Secchi disc; Transmissometer; CTD, Neil Brown; AMK36; Akademik Mstislav Keldysh; Archive of Ocean Data ARCOD; Komsomolets; Norwegian Sea
• Online Access: https://dx.doi.org/10.1594/pangaea.760106; https://doi.pangaea.de/10.1594/PANGAEA.760106

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/m**3); average chlorophyll concentration within the photo-synthetic layer (C_cl) decreased by factor of about 3.5 (from 0.97 to 0.28 mg/m**3). The value of C_ps in the water column varied slightly (from 445 to 539 mg C/m**2 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/m**2 per day in ... : 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 ...