Mesozooplankton abundance, biomass and copepod secondary production at the Barents Sea polar front, June 2011 ...

• Main Authors: Gawinski, Christine, Dmoch, Katarzyna, Svensen, Camilla
• Format: Dataset
• Language: English
• Published: UiT The Arctic University of Norway 2023
• Subjects: Samplingevent; Arctic; Barents Sea; Mesozooplankton
• Online Access: https://dx.doi.org/10.15468/vhj6jj; https://www.gbif.org/dataset/de45ab96-fc20-4d35-ad41-8d25bf7aa22a

Mesozooplankton (0.25-4 mm) abundance (ind. m-3) and biomass (mg C m-3) and copepod secondary production (mg C m-3 d-1) at four stations (M1-M4) across the Barents Sea polar front, covering Atlantic to Arctic waters (75-78 °N) in June 2011. Mesozooplankton was sampled with a WP-2 net (Hydro-Bios) with 180 µm mesh, 0.57 m diameter net opening and filtering cod-end. Filtration volume was estimated from opening diameter and sampling depth. Three vertical net hauls were taken during day (around noon, WP2-day) and during night (around midnight, WP2-night) at all stations, at fixed depth intervals of 0-50 m, 50-100 m, and 100m-bottom by using a closing mechanism. The content of the cod-end was concentrated over a 90 µm mesh on deck and preserved with buffered formaldehyde at 4 % final concentration. To increase the resolution in the surface and to quantitatively sample the small copepod species and young developmental stages, one GoFlo profile was sampled at daytime at each station in the upper 50 m. Samples were ...