(Table 1) Productive characteristics of phytoplankton and some relevant factors in the North Atlantic in September-October 1991 ...

• Main Authors: Vedernikov, Vladimir I, Demidov, A B
• Format: Dataset
• Language: English
• Published: PANGAEA 1999
• Subjects: Event label; Latitude of event; Longitude of event; Date/Time of event; DEPTH, water; Depth, top/min; Depth, bottom/max; Primary production of carbon; Primary production, integrated; Chlorophyll a; Assimilation rate of carbon per chlorophyll a; Photosynthesis layer, thickness; Depth of Secchi Disk; Radiation, photosynthetically active over a period of a sample exposure; Productivity index; Nitrogen, total dissolved; Phosphorus; Silicon; Temperature, water; Transparent bottle 150L; 14C in-situ incubation; Calculated; Spectrophotometry; Secchi disc; Photometry; Gas chromatography; Titration; CTD, Neil Brown; Archive of Ocean Data ARCOD; Arctic; north atlantic current; North Atlantic; Phytoplankton
• Online Access: https://dx.doi.org/10.1594/pangaea.761662; https://doi.pangaea.de/10.1594/PANGAEA.761662

During the study period values of primary production in the water column (C_pc) and average chlorophyll a concentration in the photosynthetic layer along the transect across the North Atlantic Current (NAC) were 140-348 mg C/m**2/day and 0.15-0.47 µg/l, along the transect across the Gulf Stream these values were 201-407 mg C/m**2/day and 0.13-0.24 µg/l; at stations of the sub-latitudinal (21°-28°N) transect across the Atlantic Ocean they were 95-360 mg C/m**2/day and 0.09-0.20 µg/l; and in the region of the Canary upwelling values were 951-1740 mg C/m**2/day and 0.56-5.35 µg/l. Along the transects across NAC and across the Atlantic Ocean the variability of C_pc signifi¬cantly depended on level of incident solar radiation. Transition from sub-arctic high-productive coastal waters to oceanic subtropical waters was accompanied by a downwelling of the main mass of chlo¬rophyll from the upper layers of the photosynthetic zone to its lower layers; this resulted in slower decrease of primary production with depth ... : Supplement to: Vedernikov, Vladimir I; Demidov, A B (1999): Primary production and chlorophyll in the North Atlantic in September-October 1991. Translated from Okeanologiya, 1999, 39(6), 876-886, Oceanology, 39(6), 796-805 ...