Browsing Brage IMR by Author "Aldrin, Magne"

Now showing items 1-3 of 3

Estimating and decomposing total uncertainty for survey-based abundance estimates of Norwegian spring-spawning herring

Aldrin, Magne; Løland, Anders (ICES CM documents, Working paper, 2006)

We demonstrate how the total uncertainty of the abundance estimate and abundanceat- age estimate of Norwegian spring-spawning herring are affected by uncertainty in the parameters of vessel avoidance, shadowing and depth ...
Estimating catch-at-age by combining data from different sources

Hirst, David; Storvik, Geir; Aldrin, Magne; Aanes, Sondre; Huseby, Ragnar Bang (Journal article; Peer reviewed, 2005)

Estimating the catch-at-age of commercial fish species is an important part of the quota-setting process for many different species and almost all countries with a fishing fleet. Current procedures are usually very ...
Improving management decisions by predicting fish bycatch in the Barents Sea shrimp fishery

Aldrin, Magne; Mortensen, Bjørnar; Storvik, Geir; Nedreaas, Kjell Harald; Aglen, Asgeir; Aanes, Sondre (Journal article; Peer reviewed, 2011-11-20)

When the bycatch of juvenile fish within the Barents Sea shrimp fishery is too large, the area is closed to fishing for a certain period. Bycatch is estimated from sampled trawl hauls, for which the shrimp yield is recorded, ...