Zas'ko, D N; Vedernikov, Vladimir I (2003): Zooplankton and chlorophyll in upper water layers within research polygons in the Atlantic Ocean, June-September 2001 [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.763266, Supplement to: Zas'ko, DN; Vedernikov, VI (2003): A comparative analysis of the vertical distribution of epipelagic Radiolaria, chlorophyll, and zooplankton in different areas of the North Atlantic Ocean (from June to September 2001). Translated from Okeanologiya, 2003, 45(3), 69-77, Oceanology, 43(1), 63-71
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Abstract:
During Cruise 46 of R/V Akademik Mstislav Keldysh (from June to September 2001), vertical distributions of Radiolaria (Acantharia - Bac and Euradiolaria - Beur), mesozooplankton (from 0.2 to 3.0 mm size, Bm), and chlorophyll a (Cchl) in the epipelagic zone of the North Atlantic were studied. To examine the above-listed characteristics, samples were taken by Niskin 30 l bottles from 12-16 depth levels within the upper 100 to 200 m layer in the subarctic (48°11'N, 16°06'W) and subtropical (27°31'N, 75°51'W) waters, as well as in the transitional zone (41°44'N, 49°57'W). The latter proved to be characterized by the highest values of all averaged parameters examined by us within the upper 100 m layer (Bm - 365mg/m**3, Bac - 140 mg/m**3, Beur - 0.37 mg/m**3, and Cchl - 0.32 mg/m**3). For subarctic and subtropical waters corresponding characteristics were as follows: Bm - 123 and 53 mg/m**3, Bac - 0 and 0.06 mg/m**3, Beur - 0.17 and 0.19 mg/m**3, and Cchl - 0.27 and 0.05 mg/m**3, respectively. Percentage of Acantharia in total biomass of Radiolaria and zooplankton ranged from 0 to 39%, whereas that of Euradiolaria varied from 0.01 to 0.36%. Depth levels with maximum abundance of Acantharia were located above maxima of zooplankton and chlorophyll a or coincided with them. As for Euradiolaria, vertical profiles of their biomass were more diverse as compared with Acantharia. The latter group preferred more illuminated depth levels for its maximum development (10-100% of surface irradiance, E0) with respect to Euradiolaria (1-60% of E0). Possible reasons for this difference are discussed.
Project(s):
Archive of Ocean Data (ARCOD)
Coverage:
Median Latitude: 38.365333 * Median Longitude: -46.501278 * South-bound Latitude: 27.516667 * West-bound Longitude: -75.850000 * North-bound Latitude: 48.183333 * East-bound Longitude: -16.100000
Date/Time Start: 2001-06-09T00:00:00 * Date/Time End: 2001-09-24T00:00:00
Event(s):
AMK46-4144 * Latitude: 48.183333 * Longitude: -16.100000 * Date/Time: 2001-06-09T00:00:00 * Elevation: -4650.0 m * Location: Northeast Atlantic * Campaign: AMK46 * Basis: Akademik Mstislav Keldysh * Method/Device: Bottle, Niskin 30-L (NIS_30L)
AMK46-4168 * Latitude: 27.516667 * Longitude: -75.850000 * Date/Time: 2001-07-03T00:00:00 * Elevation: -4820.0 m * Location: Central West Atlantic * Campaign: AMK46 * Basis: Akademik Mstislav Keldysh * Method/Device: Bottle, Niskin 30-L (NIS_30L)
AMK46-4190 * Latitude: 41.740000 * Longitude: -49.956667 * Date/Time: 2001-07-21T00:00:00 * Elevation: -3776.0 m * Location: Northwest Atlantic * Campaign: AMK46 * Basis: Akademik Mstislav Keldysh * Method/Device: Bottle, Niskin 30-L (NIS_30L)
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
2 datasets
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Datasets listed in this publication series
- Zas'ko, DN; Vedernikov, VI (2003): (Table 1) Biotic and abiotic parameters in the upper water layer of the North Atlantic in June-September 2001. https://doi.org/10.1594/PANGAEA.763264
- Zas'ko, DN; Vedernikov, VI (2003): (Table 2) Composition of zooplankton, concentrations of chlorophyll, wet biomass of zooplankton and different groups of radiolarians in upper water layers within research polygons in the Atlantic Ocean, June-September 2001. https://doi.org/10.1594/PANGAEA.763265