(Table 2) Abundance of the main groups of planktonic animals in the 250-900 m water layer at the Broken Spur and Lost City sites according to visual counts from the Mir manned submersibles in 2002 and 2005 ...

• Main Authors: Vinogradov, Georgy M, Vereshchaka, Alexander L
• Format: Dataset
• Language: English
• Published: PANGAEA 2006
• Subjects: Event label; Area/locality; Date; DEPTH, water; Depth, top/min; Depth, bottom/max; Zooplankton, gelatinous; Siphonophora; Ctenophora; Medusae; Appendicularia; Shrimps; Chaetognatha; Cyclothones; MIR deep-sea manned submersible; MIR-2 deep-sea manned submersible; Counting, visual; AMK47; AMK50; Akademik Mstislav Keldysh; Archive of Ocean Data ARCOD; North Atlantic
• Online Access: https://dx.doi.org/10.1594/pangaea.770018; https://doi.pangaea.de/10.1594/PANGAEA.770018

Three dives of the Mir manned submersibles with plankton counts and two vertical plankton hauls with a BR net were carried out above the Lost City (Atlantis underwater massif) and the Broken Spur hydrothermal fields during cruise 50 of R/V Akademik Mstislav Keldysh. Above the Atlantis seamount no significant increase in plankton concentration was found. Above the Lost City field horizontal heterogeneity of plankton distribution in the near-bottom layer and in overlying water layers was shown. Near-bottom aggregations of euphausiids and amphipods previously reported by other scientists seem to be related to attraction of these animals by the submersible's headlights rather than represent a natural phenomenon. ... : Supplement to: Vinogradov, Georgy M; Vereshchaka, Alexander L (2006): Zooplankton distribution above the Lost City (Atlantis massif) and Broken Spur hydrothermal fields in the North Atlantic according to the data of visual observations. Translated from Okeanologiya, 2006, 46(2), 238-248, Oceanology, 46(2), 217-227 ...