Sukhanova, Irina N; Flint, Mikhail V; Whitledge, Terry E; Stockwell, Dean A; Rho, T K (2006): Abundance and biomass of planktonic diatom Proboscia alata and associated species, chlorophyll a, organic carbon and nitrogen concentrations in waters over the Bering Sea middle shelf in August 2001 [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.767431, Supplement to: Sukhanova, IN et al. (2006): Mass development of the planktonic diatom Proboscia alata over the Bering Sea shelf in the summer season. Translated from Okeanologiya, 2006, 46(2), 220-237, Oceanology, 46(2), 200-216, https://doi.org/10.1134/S000143700602007X
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Abstract:
During most of the vegetation season from late May to early September large-sized diatom alga Proboscia alata forms local patches with high abundances and biomasses in different oceanographic domains of the eastern Bering Sea shelf. For 0-25 m layer average abundance and biomass of species in these patches are 700000 cells/l and 5 g/m**3 (wet weight), while corresponding estimates for the layer of maximal species concentrations are 40000000 cells/l and 38 g/m**3 (wet weight) or 1.6 g C/m**3. These levels of abundance and biomass are typical for the spring diatom bloom in the region. Outbursts of P. alata mass development are important for the carbon cycle in the pelagic zone of the shelf area in the summer season. The paradox of P. alata summertime blooms over the middle shelf lies in their occurrences against the background of the sharp seasonal pycnocline and deficiency in nutrients in the upper mixed layer. Duration of the outbursts in P. alata development is about two weeks and size of patches with high abundances can be as large as 200 km across. Degradation of the P. alata summertime outbursts may occur during 4-5 days. Rapid sinking of cells through the seasonal pycnocline results in intense transport of organic matter to bottom sediments. One of possible factors responsible for rapid degradation of the blooms is affect on the population by ectoparasitic flagellates. At terminal stages of the P. alata blooms percentage of infected cells can reach 70-99%.
Project(s):
Archive of Ocean Data (ARCOD)
Coverage:
Median Latitude: 57.301267 * Median Longitude: -166.351600 * South-bound Latitude: 57.130000 * West-bound Longitude: -168.050000 * North-bound Latitude: 57.700000 * East-bound Longitude: -165.110000
Event(s):
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
3 datasets
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Datasets listed in this publication series
- Sukhanova, IN; Flint, MV; Whitledge, TE et al. (2006): (Table 3) Abundance and biomass of Proboscia alata in patches of its mass development over the Bering Sea middle shelf, percentages of P. alata and associated algae species and their groups in total phytoplankton abundance and biomass. https://doi.org/10.1594/PANGAEA.767425
- Sukhanova, IN; Flint, MV; Whitledge, TE et al. (2006): (Table 4) Distribution of chlorophyll a, biomass of Proboscia alata, concentration of particulate organic carbon and nitrogen and ratio of particulate organic carbon to chlorophyll a in water column at station AH-2001-B3A on 29-31 August 2001. https://doi.org/10.1594/PANGAEA.767375
- Sukhanova, IN; Flint, MV; Whitledge, TE et al. (2006): (Table 5) Abundance of Proboscia alata and flagellates in the blooming spot at Stations AH-2001-B3 and AH-2001-B3A in the Bering Sea from 27 August to 1 September 2001. https://doi.org/10.1594/PANGAEA.767376