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Vinogradov, Mikhail E; Vereshchaka, Alexander L; Shushkina, Elvira A; Arnautov, Genrikh N (1999): Abundance and biomass of zooplankton collected in 1995 and 1998 in the frontal zone between the Gulf Stream and the Labrador current. PANGAEA, https://doi.org/10.1594/PANGAEA.760868, Supplement to: Vinogradov, ME et al. (1999): Structure of zooplankton communities of the frontal zone between the Gulf Stream and the Labrador current. Translated from Okeanologiya, 1999, 39(4), 555-566, Oceanology, 39(4), 504-514

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Abstract:
Vertical distribution of meso- and macroplankton was studied in the region of the most sharply pronounced climatic frontal zone between the Gulf Stream and the Labrador current. Hauls with a plankton net BR 113/140 and visual counts of macroplankton from the Mir submersible were used. In the frontal zone a contact occurs between arctic-boreal communities and communities of the North Atlantic subtropical gyre. The community of the North Atlantic subtropical gyre is more mature in terms of succession; many macroplanktonic carnivores-scavengers (mainly shrimps Acanthephyra) develop there and form a ''living network'' feeding on those transported from the north rich arctic-boreal mesoplankton. As a result biomass of shrimps appears to be significantly higher than biomass of their preys. Peculiarities of vertical distribution and population structure of shrimps were analyzed. Data on quantitative vertical distribution of total biomass of meso- and macroplankton and its principal groups, including gelatinous animals (ctenophores, medusas, and siphonophores) were obtained. Variations of the role of different plankton groups with depth were considered; these data enable a conclusion that frontal variations of the community structure embrace the depth range from the surface down to 2000 m.
Project(s):
Coverage:
Median Latitude: 41.661500 * Median Longitude: -49.971708 * South-bound Latitude: 41.650000 * West-bound Longitude: -50.007000 * North-bound Latitude: 41.742000 * East-bound Longitude: -49.966667
Date/Time Start: 1995-09-09T00:00:00 * Date/Time End: 1998-09-13T00:00:00
Event(s):
AMK37-3605PN * Latitude: 41.650000 * Longitude: -49.966667 * Date/Time: 1995-09-09T00:00:00 * Elevation: -3780.0 m * Location: Northwest Atlantic * Campaign: AMK37 * Basis: Akademik Mstislav Keldysh * Device: Plankton net BR 113/140 (PN-BR)
AMK37-3654PN * Latitude: 41.650000 * Longitude: -49.966667 * Date/Time: 1995-09-22T00:00:00 * Elevation: -3780.0 m * Location: Northwest Atlantic * Campaign: AMK37 * Basis: Akademik Mstislav Keldysh * Device: Plankton net BR 113/140 (PN-BR)
AMK41-3816PN * Latitude: 41.650000 * Longitude: -49.966667 * Date/Time: 1998-09-10T00:00:00 * Elevation: -3780.0 m * Location: Northwest Atlantic * Campaign: AMK41 * Basis: Akademik Mstislav Keldysh * Device: Plankton net BR 113/140 (PN-BR)
Size:
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