Blar i Brage IMR på forfatter "Løkkeborg, Svein"
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Agnforbruket i det norske linefisket: en analyse av årsakene til variasjonen i anvendelsen av de ulike agntypene
Løkkeborg, Svein (Rapport fra Havforskningen;Nr. 24–2013, Working paper, 2013) -
Analyse av innsamlede fangstdata for å studere effekter av seismiske undersøkelser på fiskeriene i Lofoten og Vesterålen sommeren 2008
Vold, Aud; Løkkeborg, Svein; Tenningen, Maria; Saltskår, Jostein (Fisken og havet, Research report, 2009)IMR, Bergen, has analysed data from official databases of landed catches from the period in which seismic data collection was carried out by the Norwegian Petroleum Directorate in the Lofoten/Vesterålen area summer 2008. ... -
Application of Luminescent Netting in Traps to Improve the Catchability of the Snow Crab Chionoecetes opilio
Nguyen, Khanh Q; Winger, Paul D; Wood, Jessica; Donovan, Meghan; Humborstad, Odd Børre; Løkkeborg, Svein; Bayse, Shannon (Journal article; Peer reviewed, 2019)In this study, we investigated luminescent netting as a means to improve the catch rates of snow crabs Chionoecetes opilio. A laboratory experiment was conducted to investigate the intensity and duration of luminescence ... -
Behavioural responses of krill and cod to artificial light in laboratory experiments
Utne-Palm, Anne Christine; Breen, Michael; Løkkeborg, Svein; Humborstad, Odd Børre (Journal article; Peer reviewed, 2018)Most fishes and crustaceans respond to light, and artificial light sources may therefore be an efficient stimulus to manipulate behaviours in aquatic animals. It has been hypothesised that the catch efficiency of pots could ... -
Beiteadferd hos torsk relatert til ei nyutviklet torsketeine
Siikavuopio, Sten Ivar; Hustad, Anette; Thesslund, Tina; Løkkeborg, Svein; Humborstad, Odd Børre; Saltskår, Jostein; Evensen, Tor Hatten; Martinsen, Gustav (Nofima rapportserie, Research report, 2021)Innomar AS har utviklet en ny type torsketeine som har som mål å lede torsken lettere inn i teina, hindre at torsken rømmer og samtidig kan holde på stor biomasse. Disse tre faktorene er det behov for å systematisk undersøke ... -
Best practices to mitigate seabird bycatch in longline, trawl and gillnet fisheries—efficiency and practical applicability
Løkkeborg, Svein (Journal article; Peer reviewed, 2011-08-22)Growing concerns have been raised about incidental capture of seabirds in various fisheries. Here, studies testing measures to prevent seabird bycatch in longline, trawl and gillnet fisheries are reviewed in order to ... -
Catches in abandoned snow crab (Chionoecetes opilio) pots in the Barents Sea
Humborstad, Odd Børre; Eliassen, Lasse Krøger; Siikavuopio, Sten Ivar; Løkkeborg, Svein; Ingólfsson, Ólafur Arnar; Hjelset, Ann Merete (Peer reviewed; Journal article, 2021)During a 2018 retrieval cruise for abandoned snow crab (Chionoecetes opilio) pots in the Barents Sea, approximately 8600 pots abandoned 1.5 years earlier were recovered. Forty-three percent of a subsample of 1000 pots ... -
Catches in abandoned snow crab (Chionoecetes opilio) pots in the Barents Sea
Humborstad, Odd Børre; Eliassen, Lasse Krøger; Siikavuopio, Sten Ivar; Løkkeborg, Svein; Ingolfsson, Olafur Arnar; Hjelset, Ann Merete (Peer reviewed; Journal article, 2021)During a 2018 retrieval cruise for abandoned snow crab (Chionoecetes opilio) pots in the Barents Sea, approximately 8600 pots abandoned 1.5 years earlier were recovered. Forty-three percent of a subsample of 1000 pots ... -
Catches of Greenland halibut (Reinhardtius hippoglossoides) in ghost fishing gillnets on the Norwegian continental slope
Humborstad, Odd-Børre; Furevik, Dag M.; Løkkeborg, Svein; Hareide, Nils Roar (ICES CM Documents;2000/J:8, Working paper, 2000)Catches in deliberately “lost” gillnets were studied during a ten-day cruise conducted at Storegga 70 nm off the coast of mid-Norway in July 2000. Gillnet fleets were deployed at depths of between 537 and 677 m, and soak ... -
Cruise report, «Heliotrope».
Løkkeborg, Svein (Research report, 2016) -
Devices to avoid by-catch of birds in longline fishery
Løkkeborg, Svein; Skeide, Roar L. (IMR/PINRO Joint Report Series, Conference object, 2001) -
Devices to avoid by-catch of birds in longline fishery
Løkkeborg, Svein; Skeide, Roar L. (IMR/PINRO Joint Report Series, Conference object, 2001) -
Effect of attractant distribution on catch rate and size selection of Norway lobster caught by pots
Bjordal, Åsmund; Løkkeborg, Svein; Skeide, Roar L. (ICES CM Documents;1991/B:45, Working paper, 1991)In comparative fishing trials with Norway lobster (Nephrops norvegicus) pots, the attractant property of an aqueous extract of mackerel was tested against that of natural mackerel bait. The catch rate of the natural ... -
Effect of light-emitting diodes (LEDs) on snow crab catch rates in the Barents Sea pot fishery
Nguyen, Khanh Q; Humborstad, Odd Børre; Løkkeborg, Svein; Winger, Paul D; Bayse, Shannon (Journal article; Peer reviewed, 2019)Snow crab (Chionoecetes opilio) has become an important species for the Norwegian seafood industry since its first commercial harvest in 2012. However, periodically catch rates can be low, causing a financial strain on the ... -
Effects of a geophysical survey on catching success in longline fishing
Løkkeborg, Svein (ICES CM Documents;1991/B:40, Working paper, 1991)The effects on longline catches of a geophysical survey conducted during the winter fishery for cod (Gadus morhua) were studied. Spatial extent of the effects was investigated by comparing the catch rates of longlines ... -
Effects of fishing strategy on relative selectivity in trawls, longline and gillnets
Huse, Irene; Løkkeborg, Svein; Soldal, Aud Vold (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 seismic shooting on catch and catch-availability of cod and haddock
Engås, Arill; Løkkeborg, Svein; Ona, Egil; Soldal, Aud Vold (Fisken og havet, Research report, 1993) -
Effects of seismic shooting on local abundance and catch rates of cod (Gadus morhua) and haddock (Melanogrammus aeglefinus)
Engås, Arill; Løkkeborg, Svein; Ona, Egil; Soldal, Aud Vold (Journal article; Peer reviewed, 1996)To determine whether seismic exploration affected abundance or catch rates of cod (Gadus morhua) and haddock (Melanogrammus aeglefinus), acoustic mapping and fishing trials with trawls and longlines were conducted in the ... -
Effects of setting time, setting direction and soak time on longline catch rates
Løkkeborg, Svein; Pina, Teresa (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), ... -
Effekter av bunntråling - Sammenstilling av kunnskap om bunnpåvirkning fra trål og snurrevad relevant for norske farvann
Løkkeborg, Svein; Bakkeplass, Kjell Gunnar; Diesing, Markus; Gjøsæter, Harald; Gonzalez-Mirelis, Genoveva; Hvingel, Carsten; Jørgensen, Lis Lindal; Moland, Even; Norderhaug, Kjell Magnus; Rastrick, Samuel (Rapport fra havforskningen;2023 - 1, Research report, 2023)Rapporten gir en sammenstilling av publisert kunnskap om hvordan bunnhabitater og bunndyr påvirkes (fysiske, kjemiske og biologiske effekter) av fiske med bunntrål og snurrevad. Det legges hovedvekt på påvirkninger fra ...