Trawl catch data from Nansen Legacy Cruise - Arctic Basin Joint Cruise 2-2

Randi B. Ingvaldsen; Elena Eriksen; Harald Gjøsæter; Arill Engås; Birte Katarina Schuppe; Karen M. Assman; Heather Cannaby; Padmini Dalpadado; Bodil Bluhm

doi:10.21335/nmdc-194651742

Trawl catch data from Nansen Legacy Cruise - Arctic Basin Joint Cruise 2-2

Citation

Ingvaldsen R B, Eriksen E, Gjøsæter H, Engås A, Schuppe B K, Assman K M, Cannaby H, Dalpadado P, Bluhm B, Maiorana C (2023). Trawl catch data from Nansen Legacy Cruise - Arctic Basin Joint Cruise 2-2. Version 1.5. The Nansen Legacy Project. Sampling event dataset https://doi.org/10.21335/nmdc-194651742 accessed via GBIF.org on 2024-12-14.

Description

Trawl catch data from the Nansen Legacy Cruise - Arctic Basin Joint Cruise 2-2 in the Eurasian Basin during August-September 2021. Two pelagic trawls were used resulting in twelve trawl stations in pairs at six locations: eight stations with a Harstad trawl targeting pelagic fish and four stations with a macroplankton trawl for catching larger zooplankton. The Harstad 320 trawl is a standard Norwegian pelagic trawl for pelagic fish (capelin, herring and juveniles) in northern areas and was used with modified rigging. The modified rigging included wire instead of spectra sweeps (both 60 m long), reducing the total buoyancy of the trawl net (from 1047 kg to 50 kg), and applying 150 kg weights in front of each lower wing and a 40 kg weight at the end of the cod-end. The macroplankton 92 m trawl (trawl opening area of ~36 m2) was used with ordinary rigging, except that 40 kg weight was added at the back part of the cod-end. The macroplankton trawl is a non-graded trawl with 8 mm mesh opening (EN ISO 1107:2003) from the front of the trawl to the cod-end. More information about the trawling specifications and operations can be found in {add link when paper is published}. The data set include station information, trawl catch data (wet weight in g nm-1) and individual length measurements.

Sampling Description

Method steps

Taxonomic Coverages

Geographic Coverages

Arctic ocean

Bibliographic Citations

Contacts

Randi B. Ingvaldsen
originator
position: researcher
Institute of Marine Research
NO
email: randi.ingvaldsen@hi.no
homepage: https://www.hi.no

Elena Eriksen
originator
position: researcher
Institute of Marine Research
NO
email: elena.eriksen@hi.no
homepage: https://www.hi.no

Harald Gjøsæter
originator
position: researcher
Institute of Marine Research
NO
email: harald@hi.no
homepage: https://www.hi.no

Arill Engås
originator
position: ekstern
Institute of Marine Research
NO
email: arill.engaas@hi.no
homepage: https://www.hi.no

Birte Katarina Schuppe
originator
position: technician
Akvaplan-niva
NO
homepage: https://www.akvaplan.niva.no/

Karen M. Assman
originator
position: postdoctoral fellow
Institute of Marine Research
NO
email: karen.assman@hi.no
homepage: https://www.hi.no

Heather Cannaby
originator
position: postdoctoral fellow
Institute of Marine Research
NO
email: heather.anne.cannaby@hi.no
homepage: https://www.hi.no

Padmini Dalpadado
originator
position: researcher
Institute of Marine Research
NO
email: padmini.dalpadado@hi.no
homepage: https://www.hi.no

Bodil Bluhm
originator
position: professor
University of Tromsø
NO
email: bodil.bluhm@uit.no
homepage: https://uit.no/startsida

Carolina Maiorana
metadata author
position: senior engineer
Institute of Marine Research
NO
email: carolina.maiorana@hi.no
userId: https://orcid.org/0000-0003-0572-3526

Randi B. Ingvaldsen
administrative point of contact
position: researcher
Institute of Marine Research
email: randi.ingvaldsen@hi.no
homepage: https://www.hi.no
userId: https://orcid.org/0000-0002-8261-334X