Browsing Brage IMR by Author "Slotte, Aril"
Now showing items 61-74 of 74
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Size and condition of mackerel in research vessel trawl hauls versus commercial purse seine catches: implications for acoustic biomass estimation
Slotte, Aril; Skagen, Dankert W.; Iversen, Svein A. (ICES CM documents, Working paper, 2006)In September, after the summer feeding has ceased, the Northeast Atlantic mackerel (Scomber scombrus) stock tends to aggregate in ICES Area IVa before they start to migrate southwards in December-February towards the ... -
Size dependency in the migrations and distribution of Norwegian spring spawning herring
Slotte, Aril (ICES CM documents, Working paper, 2003)The size at first spawning is comparatively larger in Norwegian spring spawning herring (Clupea harengus L.) than in other herring stocks in the Atlantic and Pacific oceans. This is probably an adaptation to a life with ... -
Size of mackerel in research vessel trawls and commercial purse-seine catches: implications for acoustic estimation of biomass
Slotte, Aril; Skagen, Dankert W.; Iversen, Svein A. (Journal article; Peer reviewed, 2007-04)In September after summer feeding has ceased, Northeast Atlantic mackerel (Scomber scombrus) tend to aggregate in ICES Area IVa before starting to migrate south towards the spawning grounds, between December and February. ... -
Size selective mortality in Norwegian spring spawning herring juveniles?
Husebø, Åse; Stenevik, Erling Kåre; Slotte, Aril; Vikebø, Frode; Folkvord, Arild; Fossum, Petter (ICES CM documents, Working paper, 2005)The growth-mortality hypothesis, where survival during the larval stage is positively related to size, is tested for Norwegian spring spawning herring (Clupea harengus L.). The daily increment width in the otoliths is ... -
Space-time recapture dynamics of PIT-tagged Northeast Atlantic mackerel (Scomber scombrus) reveal size-dependent migratory behaviour
Ono, Kotaro; Slotte, Aril; Hølleland, Sondre Nedreås; Mackinson, Steven; Jónsson, Sigurður Þór; Jacobsen, Jan Arge; Ólafsdóttir, Anna Heiða (Peer reviewed; Journal article, 2022)Based on GIS-mapping and semi-parametric modelling of recaptures from PIT-tag experiments in the North Sea nursery area (September 2011), the Celtic Seas spawning area (May-June 2014-2021) and the Icelandic Waters feeding ... -
Spatial and temporal overlap and trophic interactions between Atlantic Saithe (Pollachius virens) and Norwegian spring spawning herring (Clupea harengus) on herring spawning grounds
Slotte, Aril; Runde, Arne; Skaret, Georg; Axelsen, Bjørn Erik; Fernö, Anders; Johannessen, Arne; Nøttestad, Leif; Øvredal, Jan Tore (ICES CM documents, Working paper, 2005)Atlantic saithe (Pollachius virens) and Norwegian spring-spawning herring (Clupea harengus) represent two of the most abundant and ecologically important fish species in the Northeast Atlantic. The two species co-occur ... -
Spawning migration of Norwegian spring spawning herring (Clupea harengus L.) in relation to population structure
Slotte, Aril (Doctoral thesis, 1998) -
Spawning of Norwegian spring spawning herring (Clupea harengus L.) related to geographical location and population structure
Slotte, Aril; Johannessen, Arne (ICES CM Documents;1997/CC:17, Working paper, 1997)The catch, distribution, and biology were studied in Norwegian spring spawning herring during the spawning season in 1995. Both the spawning time and choice of spawning grounds were influenced by the size and condition ... -
Stock–environment recruitment models for Norwegian spring spawning herring (Clupea harengus)
Fiksen, Øyvind; Slotte, Aril (Journal article; Peer reviewed, 2002)Different stock–environment recruitment models for Norwegian spring spawning herring (Clupea harengus) are fitted to a time series of spawning stock, recruitment, and temperature data extending back to 1907. In addition ... -
Structure and functioning of four North Atlantic ecosystems - A comparative study
Melle, Webjørn Raunsgård; Klevjer, Thor A.; Drinkwater, Kenneth F.; Strand, Espen; Naustvoll, Lars Johan; Wiebe, Peter H.; Aksnes, Dag Lorents; Knutsen, Tor; Sundby, Svein; Slotte, Aril; Dupont, Nicolas; Salvanes, Anne Gro Vea; Korneliussen, Rolf; Huse, Geir (Peer reviewed; Journal article, 2020)The epi- and mesopelagic ecosystems of four sub-polar ocean basins, the Labrador, Irminger, Iceland and Norwegian seas, were surveyed during two legs from Bergen, Norway, to Nuuk, Greenland, and back to Bergen. The survey ... -
The dynamics of a metapopulation: changes in life-history traits in resident herring that co-occur with Oceanic herring during spawning
Johannessen, Arne; Skaret, Georg; Langård, Lise; Slotte, Aril; Husebø, Åse; Fernö, Anders (Journal article; Peer reviewed, 2014-07-22)Different populations of Atlantic herring are regarded as forming a metapopulation, but we know little about the dynamics of the connectivity and degree of interbreeding between the populations. Based on data from three ... -
Toktrapport [16/10 - 6/11, 2003]
Korneliussen, Rolf J.; Skagen, Dankert W.; Slotte, Aril; Knudsen, Tor ([Toktrapport/Havforskningsinstituttet];Nr. 15, Working paper, 2003) -
Use of data from the commercial fishing industry in the management of Norwegian spring spawning herring (Clupea harengus L.).
Slotte, Aril (ICES CM documents, Working paper, 2000)Every year the commercial fish industry of Norwegian spring spawning herring collects a severe amount of data for sales purposes that in fact could be very useful for scientific and management purposes too. The present ‘paper ... -
Use of tag-recovery data to determine migration routes of Norwegian spring-spawning herring
Slotte, Aril (ICES CM documents, Working paper, 2001)