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: Event label; Towing speed; Trawling time; Trawl headline depth; Temperature, water; Total catch; Biomass, wet mass per volume; Maurolicus muelleri; Benthosema glaciale; Myctophum punctatum; Notoscopelus kroeyeri; Stomias boa; Arctozenus rissoi; Argyropelecus hemigymnus; Argentina sphyraena; Euphausiacea; Hydrozoa; Cephalopoda; Amphipoda; Midwater trawl; Fish, wet weighted; Calculated; Birkeland_Cruise_1; Birkeland_Cruise_2; Birkeland_Cruise_3; Birkeland; Sustainable Management of Mesopelagic Resources SUMMER; Northeast Atlantic
• Online Access: https://dx.doi.org/10.1594/pangaea.931877; https://doi.pangaea.de/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). ...