Biomass density and catch composition of mesopelagic fish and invertebrates in the Northeast Atlantic

• Main Authors: Grimaldo, Eduardo, Grimsmo, Leif, Alvarez, Paula, Herrmann, Bent, Møen Tveit, Guro, Tiller, Rachel, Slizyte, Rasa, Aldanondo, Naroa, Guldberg, Trude, Toldnes, Bendik, Carvajal, Ana, Schei, Marte, Selnes, Merethe
• Format: Dataset
• Language: English
• Published: PANGAEA 2021
• Subjects: Amphipoda; Arctozenus rissoi; Argentina sphyraena; Argyropelecus hemigymnus; Benthosema glaciale; Biomass; wet mass per volume; Birkeland; Birkeland_Cruise_1; Birkeland_Cruise_1-H01; Birkeland_Cruise_1-H02; Birkeland_Cruise_1-H03; Birkeland_Cruise_1-H04; Birkeland_Cruise_1-H05; Birkeland_Cruise_1-H06; Birkeland_Cruise_1-H07; Birkeland_Cruise_1-H08; Birkeland_Cruise_1-H09; Birkeland_Cruise_1-H10; Birkeland_Cruise_1-H11; Birkeland_Cruise_1-H12; Birkeland_Cruise_2; Birkeland_Cruise_2-H01; Birkeland_Cruise_2-H02; Birkeland_Cruise_2-H03; Birkeland_Cruise_2-H04; Birkeland_Cruise_2-H05; Birkeland_Cruise_3; Birkeland_Cruise_3-H01; Birkeland_Cruise_3-H02; Birkeland_Cruise_3-H03; Birkeland_Cruise_3-H04; Birkeland_Cruise_3-H05; Birkeland_Cruise_3-H06; Birkeland_Cruise_3-H07; Birkeland_Cruise_3-H08; Calculated; Cephalopoda; Euphausiacea; Event label; Fish; wet weighted; Hydrozoa; Maurolicus muelleri; Midwater trawl; MWT; Myctophum punctatum; Northeast Atlantic; Notoscopelus kroeyeri; Stomias boa; Argentina; Mid-Atlantic Ridge; Boa
• Online Access: https://doi.pangaea.de/10.1594/PANGAEA.931877; https://doi.org/10.1594/PANGAEA.931877

During three cruises in the Mid Atlantic Ridge area in 2016 and 2017, we studied the biomass of mesopelagic fish down to a depth of 600 m and identified and quantified the species composition of the catches. The biomass density was estimated considering the volume of water filtered by the cross-sectional area of the trawl blinded with 16 mm meshes (130 m–2), the distanced covered by the trawl (m) at a towing speed (transformed to m s–1) the effective tow time (min) and the catch (kg).