Results for Greenland halibut survey in NAFO Divisions 1C-1D for the period 1997-2017, and 2019
Abstract
Greenland initiated a survey series in 1997 covering NAFO Divisions 1CD at depths between 400 and 1500 m. No survey has been conducted in 2018. In 2019, the annual trawl survey was conducted with a chartered vessel, the Islandic trawler Helga Maria. All the standard gear from the research vessel Paamiut were used, in order to make the 2019 survey as identical as possible to the previous years’ surveys. The survey was designed as a Stratified Random Bottom Trawl Survey aimed primarily at Greenland halibut (Reinhardtius hippoglossoides) and roundnose grenadier (Coryphaenoides rupestris). The paper gives biomass and abundance estimates and length frequencies for Greenland halibut, roundnose grenadier, roughhead grenadier (Macrourus berglax), and deep sea redfish (Sebastes mentella) together with a list of recorded fish species. In 2019, 70 valid hauls were conducted. Greenland halibut biomass index shows a slightly increased from 2016 to 2019. Roundnose and roughhead grenadier increased from 2017 to 2019, and deep-sea redfish index slightly decreased.
