Vedernikov, Vladimir I; Gagarin, Vladimir I (1998): (Table 1) Results of measurements of productive characteristics of phytoplankton and environmental parameters in the Barents Sea in September-October 1997 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.760656, Supplement to: Vedernikov, VI; Gagarin, VI (1998): Primary production and chlorophyll in the Barents Sea in September-October, 1997. Translated from Okeanologiya, 1998, 38(5), 710-718, Oceanology, 38(5), 642-649
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Abstract:
The described studies were carried out in the eastern part of the sea during the end of the summer seasonal succession from September 1 to October 12, 1997. Concentration of chlorophyll a in the surface layer varied from 0.09 to 1.24 mg/m**3; it tended to increase in the southern regions (<74°N). Primary production in the water column (P_p) varied from 24 to 214 mg C/m**2/day and was on average 91 mg C/m**2/day. The low level of P_p seems to result from combination of physical and chemical environmental factors unfavorable for photosynthesis (e.g. deficiency of nutrients and low values of insolation and temperature) and intensive grazing of phytoplankton by zooplankton. The lower boundary of the photosynthetic layer in open waters was located at depth 60-75 m; irradiance there was 0.1-0.5% of incident irradiance. In deep-water regions (>200 m) the subsurface maximum of chlorophyll occurred in the layer at 20-40 m; usually this maximum resulted in formation of additional maxima of primary production.
Project(s):
Archive of Ocean Data (ARCOD)
Coverage:
Median Latitude: 76.059471 * Median Longitude: 49.688071 * South-bound Latitude: 70.666600 * West-bound Longitude: 37.000000 * North-bound Latitude: 79.916600 * East-bound Longitude: 62.500000
Date/Time Start: 1997-09-01T00:00:00 * Date/Time End: 1997-10-11T00:00:00
Minimum Elevation: -360.0 m * Maximum Elevation: -67.0 m
Event(s):
ASV11-835P * Latitude: 70.666600 * Longitude: 37.000000 * Date/Time: 1997-09-01T00:00:00 * Elevation: -180.0 m * Location: Barents Sea * Campaign: ASV11 * Basis: Akademik Sergey Vavilov * Method/Device: Multiple investigations (MULT)
ASV11-847P * Latitude: 73.436600 * Longitude: 37.001600 * Date/Time: 1997-09-03T00:00:00 * Elevation: -244.0 m * Location: Barents Sea * Campaign: ASV11 * Basis: Akademik Sergey Vavilov * Method/Device: Multiple investigations (MULT)
ASV11-860P * Latitude: 76.416600 * Longitude: 40.000000 * Date/Time: 1997-09-05T00:00:00 * Elevation: -210.0 m * Location: Barents Sea * Campaign: ASV11 * Basis: Akademik Sergey Vavilov * Method/Device: Multiple investigations (MULT)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | ||||
| 2 | Latitude of event | Latitude | ||||
| 3 | Longitude of event | Longitude | ||||
| 4 | Date/Time of event | Date/Time | ||||
| 5 | Primary production of carbon | PP C | mg/m3/day | Vedernikov, Vladimir I | 14C in-situ incubation | in the surface layer |
| 6 | Primary production, integrated | PP C | mg/m2/day | Vedernikov, Vladimir I | Calculated | in the 0-100 m layer |
| 7 | Chlorophyll a | Chl a | µg/l | Vedernikov, Vladimir I | Fluorometry | in the surface layer |
| 8 | Chlorophyll a | Chl a | µg/l | Vedernikov, Vladimir I | Fluorometry | aver. for the photosynthetic layer |
| 9 | Chlorophyll a | Chl a | µg/l | Vedernikov, Vladimir I | Fluorometry | aver. for the 0-100 m layer |
| 10 | Assimilation rate of carbon per chlorophyll a | Assim r C/Chl a | mg/mg/h | Vedernikov, Vladimir I | Calculated | maximum in the water column |
| 11 | Assimilation rate of carbon per chlorophyll a | Assim r C/Chl a | mg/mg/h | Vedernikov, Vladimir I | Calculated | aver. for the photosynthetic layer |
| 12 | Photosynthesis layer, thickness | TPhl | m | Vedernikov, Vladimir I | Photometry | |
| 13 | Depth of Secchi Disk | z(SD) | m | Vedernikov, Vladimir I | Secchi disc | |
| 14 | Temperature, water | Temp | °C | Vedernikov, Vladimir I | Thermometer | surface |
| 15 | Solar radiation | Solor rad | cal/cm2 | Vedernikov, Vladimir I | Photometry | during the period of exposure of flasks (one-half of a day) |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
88 data points