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  • Data  (27)
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  • 1
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    Total phytoplankton abundance and biomass in the surface and fluorescence maximum layers and contributions of dominant species to their values in the Werstern Arctic in July-August 2003
    PANGAEA
    In:  Supplement to: Sergeeva, V M; Sukhanova, Irina N; Flint, Mikhail V; Pautova, L A; Grebmeier, Jacqueline M; Cooper, Lee W (2010): Phytoplankton community in the Western Arctic in July-August 2003. Translated from Okeanologiya, 2010, 50(2), 203-217, Oceanology, 50(2), 184-197, https://doi.org/10.1134/S0001437010020049
    Details
    Publication Date: 2023-05-12
    Description: Phytoplankton community was studied in the Bering Strait and over the shelf, continental slope, and deep-water zones of the Chukchi and Beaufort Seas in the middle of the vegetative season (July-August 2003). Its structure was analyzed in relation to ice conditions and seasonal patterns of water warming, stratification, and nutrient concentrations. Overall variations in phytoplankton abundance from 200 to 6000000 cells/l and biomass from 0.1 to 444.1 µg C/l.were estimated. The bulk of phytoplankton cells concentrated in the seasonal picnocline at depths 10-25 m. The highest values of cell abundance and biomass were recorded in regions influenced by inflow of Bering Sea waters or characterized by intense hydrodynamics, such as the Bering Strait, Barrow Canyon, and the outer shelf and slope of the Chukchi Sea. In the middle of the vegetative season, phytoplankton in the study region of the Western Arctic proved to comprise three successional (seasonal) assemblages: early spring, late spring, and summer assemblages. Their spatial distribution was dependent mainly on local features of hydrological and nutrient regimes rather than on general latitudinal trends of seasonal succession characteristic of arctic ecosystems.
    Keywords: Archive of Ocean Data; ARCOD; Barrow Canyon; Beaufort Sea; Bering Staight; Bottle, Niskin 30-L; Chukchi Sea; Chukchi shelf; NBP03-04A-126; NBP03-04A-128; NBP03-04A-135; NBP03-04A-137; NBP03-04A-138; NBP03-04A-140; NBP03-04A-142; NBP03-04A-151; NBP03-04A-190; NBP03-04A-194; NBP03-04A-233; NBP03-04A-27; NBP03-04A-286; NBP03-04A-29; NBP03-04A-31; NBP03-04A-312; NBP03-04A-4; NBP03-04A-45; NBP03-04A-49; NBP03-04A-5; NBP03-04A-53; NBP03-04A-6; NBP03-04A-61; NBP03-04A-63; NBP03-04A-64; NBP03-04A-65; NBP03-04A-73; NBP03-04A-74; NBP03-04A-87; NBP03-04A-97; NIS_30L
    Type: Dataset
    Format: application/zip, 4 datasets
    Location Call Number Expected Availability
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    DATA PANGAEA
  • 2
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    Phytoplankton of the southwest Kara Sea on August 9-12, 2007
    PANGAEA
    In:  P.P. Shirshov Institute of Oceanology, Russian Academy of Sciences, Moscow | Supplement to: Sukhanova, Irina N; Flint, Mikhail V; Sergeeva, V M; Kremenetskiy, V V (2011): Phytoplankton of the south-western part of the Kara Sea. Translated from Okeanologiya, 2011, 51(6), 1039-1053, Oceanology, 51(6), 978-992, https://doi.org/10.1134/S000143701106018X
    Details
    Publication Date: 2023-05-12
    Description: A research was carried out along a transect from the Yamal Peninsula coast towards the outer shelf of the southwestern the Kara Sea in September 2007. 130 phytoplankton species were identified, among which 63 were found in the area for the first time. Total phytoplankton abundance varied from of 0.2 x10**9 to 11.3x10**9 cells/m**2, while biomass from 43 to 1057 mgC/m**2. A well pronounced cross-shelf zoning in phytoplankton communities was ascertained. The inner shelf zone about 30 km wide with depths down to 30 meters was characterized by predominance of diatoms (up to 80% of total algal abundance and biomass). The second group by value was dinoflagellates. Seaward in the area of depth increase from 30 to 140 m, the zone of the Yamal Current was located, which was 40 km wide and notable for its active water dynamics. Total abundance in the zone was maximal for the entire investigated area: up to 11.3x10**9 cells/m**2. Autotrophic flagellates were the leading group in phytoplankton, their share in total abundance reached 56-82%. Further than 70 km from the shore, the outer shelf zone was found with the water column rigidly stratified. The highest for the whole area phytoplankton biomass was identified here (up to 1.06 gC/m**2), 80% of which concentrated above the halocline. Diatoms dominated in phytoplankton abundance (up to 92%) and biomass (up to 90%) that resulted from mass development of two species: Chaetoceros diadema and Leptocylindrus danicus.
    Keywords: Archive of Ocean Data; ARCOD
    Type: Dataset
    Format: application/zip, 2 datasets
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  • 3
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    Phytoplankton in the surface desalted lens of the Kara Sea
    PANGAEA
    In:  P.P. Shirshov Institute of Oceanology, Russian Academy of Sciences, Moscow
    Details
    Publication Date: 2023-05-12
    Description: Phytoplankton of a surface strongly desalinated water lens was investigated on the basis of materials collected during Cruise 57 of R/V Akademik Mstislav Keldysh in September 2007. The lens with salinity 〈18 psu had area of ca. 19000 sq. km and was located in the northwestern part of the Kara Sea near the eastern coast of Novaya Zemlya. It was a specific biotope that had been isolated from surrounding waters for more than three months. In the investigated area 66 algae species were identified. The maximal species diversity was found in the upper layers of the desalinated lens, where species number was 1.5 to 3 times higher than in other parts of the water column. Phytoplankton abundance in the upper layers of the lens was 1.5 to 4.5 times higher than in its lower part and generally higher than below the picnocline. Diatoms were the most abundant group in the upper layers of the lens, while flagellates dominated in the subpicnocline part of the water column. Maximal values of phytoplankton biomass were observed everywhere in the upper layers of the lens, where they were 1.2 to 3.7 times higher than in the lower part of the lens and 1.3 to 7.2 times higher than in the layer below the picnocline. Dinoflagellates generally gave the most contribution to total phytoplankton biomass. Phytoplankton of the desalinated surface lens in the northwestern part of the Kara Sea by its composition and quantitative parameters had the nearest resemblance to a phytocenosis that we observed two weeks later at a shallow desalinated shelf closely adjacent to the Ob estuary.
    Keywords: Archive of Ocean Data; ARCOD
    Type: Dataset
    Format: application/zip, 2 datasets
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  • 4
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    Coccoliths in phytoplankton of the Eastern Bering Sea in August 2001
    PANGAEA
    In:  Supplement to: Sukhanova, Irina N; Flint, Mikhail V; Whitledge, Terry E; Lessard, Evelyn J (2004): Coccolithophorids in the phytoplankton of the Eastern Bering Sea after anomalous bloom of 1997. Translated from Okeanologiya, 2004, 44(5), 709-722, Oceanology, 44(5), 665-678
    Details
    Publication Date: 2023-05-12
    Description: Based on results of field observations in August 1998, July 2000, and August 2001 composition and quantitative distribution of coccolithophorids in the middle part of the Eastern Bering Sea shelf between 56°052'N and 59°019'N was characterized. Emiliania huxleyi abundance, biomass, and population structure as well as role of species in the coccolithophorid community and phytoplankton as a whole were evaluated. Abundance of the species in the upper mixed layer in bloom areas was 1-3 mln cells/l and biomass made up 30-75 mg C/m**3. E. huxleyi share in total phytoplankton numbers and biomass at that reached 98% and 84% respectively. Significant spatial heterogeneity of E. huxleyi, quantitative distribution and population size structure, as well as asynchronism in population development in neighboring parts of the bloom area were shown. The time period, during which population structure in certain part of the area shifts from domination of juvenile cells without coccoliths to a phase of active detritus formation with dying coccolithophorid cells involved, may be estimated as two weeks. A conclusion is made that after anomalous E. huxleyi bloom in 1997 mass development of coccolithophorids became a characteristic feature of phytoplankton community's seasonal succession in the middle part of the Eastern Bering Sea shelf.
    Keywords: AH-2001-B1/M2; AH-2001-B10; AH-2001-B11; AH-2001-B12; AH-2001-B13; AH-2001-B14; AH-2001-B2; AH-2001-B3; AH-2001-B3A; AH-2001-B4; AH-2001-B5; AH-2001-B6/M4; AH-2001-B7; AH-2001-B8; AH-2001-B9; Archive of Ocean Data; ARCOD; Bottle, Niskin; East Bering Sea; NIS
    Type: Dataset
    Format: application/zip, 7 datasets
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    DATA PANGAEA
  • 5
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    (Table 2a) Depth with 1% of photosynthetic active radiation in the Obskaya Guba and adjacent Kara Sea in the latest September 2007
    PANGAEA
    Details
    Publication Date: 2023-05-12
    Keywords: Akademik Mstislav Keldysh; AMK54; AMK54-4993; AMK54-4996; AMK54-4997; AMK54-5000; AMK54-5001; AMK54-5003; Archive of Ocean Data; ARCOD; Date/Time of event; Depth with 1% of photosynthetic active radiation; Elevation of event; Event label; Kara Sea; Latitude of event; Longitude of event; MULT; Multiple investigations; Obskaya Guba; Photometry
    Type: Dataset
    Format: text/tab-separated-values, 6 data points
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  • 6
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    (Table 1a) Total phytoplankton abundance in the surface water layer and contributions of dominant species to its value in the Werstern Arctic in July-August 2003
    PANGAEA
    Details
    Publication Date: 2023-05-12
    Keywords: Archive of Ocean Data; ARCOD; Area/locality; Barrow Canyon; Beaufort Sea; Bering Staight; Bottle, Niskin 30-L; Calculated; Chukchi Sea; Chukchi shelf; Depth, bottom/max; Depth, top/min; DEPTH, water; Event label; Latitude of event; Longitude of event; Microscopy; NBP03-04A-126; NBP03-04A-128; NBP03-04A-135; NBP03-04A-137; NBP03-04A-138; NBP03-04A-140; NBP03-04A-142; NBP03-04A-151; NBP03-04A-190; NBP03-04A-194; NBP03-04A-233; NBP03-04A-27; NBP03-04A-286; NBP03-04A-29; NBP03-04A-31; NBP03-04A-312; NBP03-04A-4; NBP03-04A-45; NBP03-04A-49; NBP03-04A-5; NBP03-04A-53; NBP03-04A-6; NBP03-04A-61; NBP03-04A-63; NBP03-04A-64; NBP03-04A-65; NBP03-04A-73; NBP03-04A-74; NBP03-04A-87; NBP03-04A-97; NIS_30L; Phytoplankton; Species; Species dominance
    Type: Dataset
    Format: text/tab-separated-values, 225 data points
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    DATA PANGAEA
  • 7
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    (Table 2) Quantitative parameters of the Emiliania huxleyi population at the section along 70 m isobath carried out on 26 and 27 August 2001
    PANGAEA
    Details
    Publication Date: 2023-05-12
    Keywords: AH-2001-B1/M2; AH-2001-B2; AH-2001-B3; AH-2001-B4; AH-2001-B5; AH-2001-B6/M4; AH-2001-B7; AH-2001-B8; Archive of Ocean Data; ARCOD; Bottle, Niskin; Calculated; Counting, coccoliths; Depth, bottom/max; Depth, top/min; DEPTH, water; East Bering Sea; Emiliania huxleyi; Event label; Latitude of event; Longitude of event; NIS
    Type: Dataset
    Format: text/tab-separated-values, 80 data points
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  • 8
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    (Table 4b) Biomass of Emiliania huxleyi and its role in total biomass of phytoplankton along the section from the Pribilofs Islands to the Nunivak Island on 24-25 August 2001
    PANGAEA
    Details
    Publication Date: 2023-05-12
    Keywords: AH-2001-B10; AH-2001-B11; AH-2001-B12; AH-2001-B13; AH-2001-B14; AH-2001-B6/M4; AH-2001-B9; Archive of Ocean Data; ARCOD; Bottle, Niskin; Calculated; Depth, bottom/max; Depth, top/min; DEPTH, water; East Bering Sea; Emiliania huxleyi; Emiliania huxleyi, biomass; Event label; Latitude of event; Longitude of event; NIS
    Type: Dataset
    Format: text/tab-separated-values, 28 data points
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  • 9
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    (Table 3) Quantitative parameters of the Emiliania huxleyi population along the section from the Pribilofs Islands to the Nunivak Island carried out on 24 and 25 August 2001
    PANGAEA
    Details
    Publication Date: 2023-05-12
    Keywords: AH-2001-B10; AH-2001-B11; AH-2001-B12; AH-2001-B13; AH-2001-B14; AH-2001-B6/M4; AH-2001-B9; Archive of Ocean Data; ARCOD; Bottle, Niskin; Calculated; Counting, coccoliths; Depth, bottom/max; Depth, top/min; DEPTH, water; East Bering Sea; Emiliania huxleyi; Event label; Latitude of event; Longitude of event; NIS
    Type: Dataset
    Format: text/tab-separated-values, 70 data points
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  • 10
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    (Table 6) Temporal variations of relative abundance of dead cells (in detritus, conglomerates and associated with Probocsia alata) of total number of living and dead cells of Emiliania huxleyi at Stations AH-2001-B3 and AH-2001-B3A
    PANGAEA
    Details
    Publication Date: 2023-05-12
    Keywords: AH-2001-B3; AH-2001-B3A; Archive of Ocean Data; ARCOD; Bottle, Niskin; Calculated; Date; Depth, bottom/max; Depth, top/min; DEPTH, water; East Bering Sea; Emiliania huxleyi; Event label; Latitude of event; Longitude of event; NIS
    Type: Dataset
    Format: text/tab-separated-values, 76 data points
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