Ratkova, Tatyana N; Sazhin, Andrey F; Kosobokova, Ksenia N (2004): Contribution of different algae groups to their total biomass and infusoria biomass in under ice water [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.763058, Supplement to: Ratkova, TN et al. (2004): Unicellular inhabitants of the White Sea underice pelagic zone during the early spring period. Translated from Okeanologiya, 2004, 44(2), 259-266, Oceanology, 44(2), 240-246
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Abstract:
Samples of under ice water were collected at 4 stations not far from the White Sea Biological Station of the Zoological Institute RAS (Chupa Inlet, Kandalaksha Bay) in April 2002. For the first time it was shown that in winter numerous phototrophic and heterotrophic flagellates together with diatoms inhabited water column under sea ice. Abundance and biomass of these small algae was comparable with similar summer data. Biomass of algae in 2-40 m layer in early April 2002 exceeded 300 mg C/m**2, increasing up to 0.69-2.9 g C/m**3 just under ice. Sinking of the algae was insignificant, may be due to active grazing in the thin upper layer of the water column. High abundance of heterotrophic flagellates and dinoflagellates may indicate importance of the microbial food chain. From obtained data it may be concluded that the vegetation season, as well as the season of high activity of nano- and microheterotrophs starts in the White Sea far earlier, than it was supposed before.
Project(s):
Archive of Ocean Data (ARCOD)
Coverage:
Median Latitude: 66.332200 * Median Longitude: 33.661900 * South-bound Latitude: 66.330900 * West-bound Longitude: 33.658600 * North-bound Latitude: 66.333500 * East-bound Longitude: 33.665000
Date/Time Start: 2002-04-06T00:00:00 * Date/Time End: 2002-04-09T00:00:00
Minimum DEPTH, water: 2 m * Maximum DEPTH, water: 40 m
Event(s):
Chupa-2002-1 * Latitude: 66.330900 * Longitude: 33.665000 * Date/Time: 2002-04-06T00:00:00 * Elevation: -62.5 m * Location: White Sea * 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 | Elevation of event | Elevation | m | |||
| 5 | Date/Time of event | Date/Time | ||||
| 6 | DEPTH, water | Depth water | m | Geocode | ||
| 7 | Algae, biomass as carbon | Algae C | µg/l | Ratkova, Tatyana N | Calculated from cell volumes and abundance | |
| 8 | Diatoms, biomass as carbon | Diatom C | % | Ratkova, Tatyana N | Calculated | of total carbon |
| 9 | Flagellates, biomass as carbon | Flagellate C | % | Ratkova, Tatyana N | Calculated | autotrophic of total carbon |
| 10 | Flagellates, biomass as carbon | Flagellate C | % | Ratkova, Tatyana N | Calculated | heterotrophic of total carbon |
| 11 | Infusoria, biomass as carbon | Infusoria C | µg/l | Ratkova, Tatyana N | Calculated from cell volumes and abundance |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
65 data points
Data
| 1 Event | 2 Latitude | 3 Longitude | 4 Elevation [m] | 5 Date/Time | 6 Depth water [m] | 7 Algae C [µg/l] (Calculated from cell volumes ...) | 8 Diatom C [%] (of total carbon, Calculated) | 9 Flagellate C [%] (autotrophic of total carbon, ...) | 10 Flagellate C [%] (heterotrophic of total carbon...) | 11 Infusoria C [µg/l] (Calculated from cell volumes ...) |
|---|---|---|---|---|---|---|---|---|---|---|
| Chupa-2002-1 | 66.3309 | 33.6650 | -62.5 | 2002-04-06 | 2 | 8.71 | 22 | 53.0 | 22 | 0.210 |
| Chupa-2002-1 | 66.3309 | 33.6650 | -62.5 | 2002-04-06 | 10 | 2.70 | 45 | 11.0 | 40 | 0.080 |
| Chupa-2002-1 | 66.3309 | 33.6650 | -62.5 | 2002-04-06 | 25 | 2.48 | 52 | 0.7 | 39 | 0.180 |
| Chupa-2002-1 | 66.3309 | 33.6650 | -62.5 | 2002-04-06 | 40 | 0.85 | 56 | 0.6 | 39 | 0.020 |
| Chupa-2002-2 | 66.3318 | 33.6631 | -62.5 | 2002-04-07 | 2 | 25.12 | 35 | 50.0 | 11 | 1.120 |
| Chupa-2002-2 | 66.3318 | 33.6631 | -62.5 | 2002-04-07 | 10 | 6.86 | 71 | 2.0 | 22 | 0.080 |
| Chupa-2002-2 | 66.3318 | 33.6631 | -62.5 | 2002-04-07 | 25 | 3.97 | 64 | 0.4 | 34 | 0.002 |
| Chupa-2002-2 | 66.3318 | 33.6631 | -62.5 | 2002-04-07 | 40 | 5.14 | 76 | 2.0 | 18 | 0.030 |
| Chupa-2002-3 | 66.3326 | 33.6609 | -33.0 | 2002-04-08 | 2 | 24.21 | 13 | 60.0 | 25 | 3.680 |
| Chupa-2002-3 | 66.3326 | 33.6609 | -33.0 | 2002-04-08 | 10 | 1.94 | 40 | 7.0 | 50 | 0.090 |
| Chupa-2002-3 | 66.3326 | 33.6609 | -33.0 | 2002-04-08 | 20 | 1.21 | 25 | 17.0 | 51 | 0.100 |
| Chupa-2002-4 | 66.3335 | 33.6586 | -20.0 | 2002-04-09 | 2 | 9.45 | 35 | 20.0 | 42 | 2.040 |
| Chupa-2002-4 | 66.3335 | 33.6586 | -20.0 | 2002-04-09 | 10 | 2.30 | 43 | 23.0 | 33 | 0.090 |