Browsing Brage IMR by Subject "fangststrategi"
Now showing items 1-10 of 10
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Ansvarlig fangststrategi
(Fisken og havet, Research report, 1996)Responsible catch strategy or sustainable utilization of the resources in harmony with the environment, must be based on the following criteria: optimum size selection, optimum species selection, minimum discard, minimum ... -
Benefits of threshold strategies and age-selective harvesting in a fluctuating fish stock of Norwegian spring spawning herring Clupea harengus
(Journal article; Peer reviewed, 2005-08-15)The current state of the world’s fisheries resources requires further investigation into the means and methods for sustainable use of fish stocks. In this study, I assess the performance of different harvesting strategies ... -
Effects of fishing strategy on relative selectivity in trawls, longline and gillnets
(ICES CM Documents;1996/B:23, Working paper, 1996)Exploitation of fish stocks is dependent on effort, catchability, the selectivity of the gear used, and the fishermen's choice of time and place. A full-scale fishing experiment was conducted in February 1996 at the coast ... -
Effects of setting time, setting direction and soak time on longline catch rates
(ICES CM Documents;1996/B:34, Working paper, 1996)Most studies of factors affecting catching efficiency and selectivity in longlining have focused on various gear parameters (mainline and snood material, hook design and size, rigging) and on the bait (type and size), ... -
Harvesting Strategies in a Fish Stock Dominated by Low-frequency Variability: The Norwegian Spring-spawning Herring (Clupea harengus)
(Journal article; Peer reviewed, 2003)Heavy positively autocorrelated natural fluctuations in a fisheries stock level are problematic for fisheries management, and collapses in the stock dynamics are difficult to avoid. In this paper, we compare three different ... -
Limiting inter-annual variation in total allowable catch strategies. An application to ICES roundfish stocks
(ICES CM Documents;2003/X:7, Working paper, 2003)This study evaluated through simulation management strategy that stabilise catch levels by setting bounds on the inter-annual variability in Total Allowable Catches (TACs). An integrated modelling approach was used, which ... -
Report of the Atlanto-Scandian Herring and Capelin Working Group [Copenhagen, 19- 23 October, 1992]
(ICES CM Documents;1993/Assess:6, Working paper, 1993) -
Report of the Study Group on Unaccounted Mortality in Fisheries [Aberdeen, Scotland, 17- 18 April, 1995]
(ICES CM Documents;1995/B:1, Working paper, 1995) -
Report of the Working Group on methods of fish stock assessment [ICES headquarters, 20 -26 May, 1983]
(ICES CM Documents;1983/Assess:17, Working paper, 1983) -
Sampling Atlantic salmon in the NE Atlantic during summer: methods of capture and distribution of catches
(ICES CM Documents;1996/M:12, Working paper, 1996)In July/ August 1991 the Institute of Marine Research (IMR, Norway) performed a pairtrawling (two boat trawl) experiment with a surface trawl to catch young herring in the northem Norwegian Sea. 34 postsmolts and two 1- ...