• Import of furunculosis to Norway with Atlantic salmon smolts from Scotland 

      Egidius, Emmy (ICES CM Documents;1987/F:8, Working paper, 1987)
      In early summer 1985 the Norwegian Veterinary Authorities authorized the import of about 250.000 Atlantic salmon smolts from a fish farm at the west coast of Scotland to the Namdal region north of Trondheim. Immediately ...
    • Improved calibration of hydroacoustic equipment with copper spheres 

      Foote, Kenneth G.; Knudsen, Hans Petter; Vestnes, Gudmund (ICES CM Documents;1981/B:20, Working paper, 1981)
    • Improved catch rates and selection of Norway lobster (Nephrops norvegicus L.) by controlled release of fluid bait extract in pot fishing 

      Bjordal, Åsmund; Løkkeborg, Svein (ICES CM Documents;1992/B:14, Working paper, 1992)
      The effect of controlled release of fluid mackerel extract as bait in Norway lobster pots was tested in comparative fishing trials. Compared with natural mackerel bait, pots with extract release rates above 6 ml/h had ...
    • Improving the link between science and management: Drawing upon local fishers' experience 

      Maurstad, Anita; Sundet, Jan H. (ICES CM Documents;1994/T:20, Working paper, 1994)
      Norwegian fish stock assessment has not included estimation of coastal and fjord resources until recently. The geographical area varies both in environmental and biological features. Stock assessment is especially difficult ...
    • IMR status report on the Barents Sea Ecosystem, 2004-2005 

      Stiansen, Jan Erik; Bogstad, Bjarte; Dalpadado, Padmini; Gjøsæter, Harald; Hauge, Kjellrun Hiis; Ingvaldsen, Randi; Loeng, Harald; Mauritzen, Mette; Mehl, Sigbjørn; Ottersen, Geir; Stenevik, Erling Kåre (Working paper, 2005)
    • In situ determination of bottom trawl ground gear contact 

      Engås, Arill; Ona, Egil; Ramberg, Kjell (ICES CM documents, Working paper, 2001)
      Exact definition of towed distance with proper ground gear contact is an essential parameter in bottom trawl swept area estimates of fish abundance. Errors in this key parameter may lead to a first order bias in abundance ...
    • In situ fish target strengths derived with a split-beam echo sounder 

      Nakken, Odd; Foote, Kenneth G.; Aglen, Asgeir (ICES CM documents, Working paper, 1985)
      In-situ target strengths of six fishes were determined with a split-beam echo sounder during cruises about Lofoten in March 1984 and the Shetland Islands in July 1984. The species and lengths, mean and standard deviation, ...
    • In situ observations of swimbladder compression in herring 

      Ona, Egil (ICES CM documents, Working paper, 1984)
      The hydrostatic function of the swimbladder in herring is experimentally investigated through in situ diver-assisted measurements of swimbladder volume on net-caught and caged fish. In agreement with morpho-physiological ...
    • In situ of Cape horse mackerel (Trachurus capensis) 

      Axelsen, Bjørn Erik (ICES CM Documents;1999/J:4, Working paper, 1999)
      The acoustical target strength (TS) of Cape horse mackerel (Trachurus capensis) was measured in situ at 38 kHz using a submersible split beam transducer in combination with a SIMRAD EK 500 echosounder. The transducer ...
    • In situ target strength observations on haddock 

      Ona, Egil; Hansen, Kaare A. (ICES CM Documents;1986/B:39, Working paper, 1986)
      In situ target strength measurements of ideally resolved haddock have been made using the ES-400 split-beam echo sounder. The measurements are compared with the mean target strength obtained simultaneously by counting ...
    • In vitro ecotoxicological assessment of pelagic ecosystems 

      Thomas, Kevin V.; Hurst, M. R.; Reynolds, W.; Klungsøyr, Jarle; Meier, Sonnich; Thain, John E. (ICES CM documents, Working paper, 2002)
      The ICES biological effects monitoring in pelagic ecosystems (BECPELAG) workshop is a multi-national, multi-disciplinary workshop aimed at establishing suitable techniques for monitoring the effects of contaminants on ...
    • In/out-flow of coastal water in Vestfjorden 

      Sundby, Svein (ICES CM Documents;1978/C:51, Working paper, 1978)
      Hydrographic sections in Vestfjorden, Northern Norway, during winter 1977 showed strong horizontal temperature gradients on the west side of the fjord indicating an outflow of cold coastal water. Analysis of sea thermograph ...
    • Including climate into the assessment of future fish recruitment, using multiple regression models. 

      Stiansen, Jan Erik; Aglen, Asgeir; Bogstad, Bjarte; Loeng, Harald; Mehl, Sigbjørn; Nakken, Odd; Ottersen, Geir; Svendsen, Einar (ICES CM documents, Working paper, 2005)
      Climate variability has generally not been included in the assessment of fish stocks in the Barents Sea and Norwegian Sea. However, in recent years there has been a focus on implementing climate variability in the assessment ...
    • Incorporating experimentally derived estimates of survey trawl catchability into the stock assessment process 

      Somerton, David; Ianelli, Jim; Walsh, Stephen J.; Smith, Stephen; Godø, Olav Rune; Ramm, David (ICES CM Documents;1997/W:5, Working paper, 1997)
      During the course of the April, 1996, meeting of the Fishing Technology and Fish Behavior Working Group it became clear to many that the methodology for experimentally estimating the catchability of survey trawls might ...
    • Increased growth rate in Atlantic salmon parr by using a two-colour diet 

      Holm, Jens Christian; Jakobsen, Per J.; Johnsen, Geir Helge (ICES CM Documents;1985/F:17, Working paper, 1985)
      Fishes hunting by sight are known to pay a cost of confusion when faced with high densities of uniform food particles. In such instances, awareness of other stimuli reduces feeding efficiency such that the fishes prefer ...
    • Incubation of halibut yolk sac larvae improved by addition of freshwater and oxygen 

      Holm, Jens Christian; Naas, Kjell Emil; Harboe, Torstein; Skår, Sjur Åge (ICES CM Documents;1998/L:14, Working paper, 1998)
      Halibut fry has been produced regularly by scientific and commercial institutions since late 80- ties. The yearly number of halibut fry produced have, however, not fulfllled the optimistic expectations. This could partly ...
    • Indication of high natural mortality for juvenile herring from acoustic and tagging data. 

      Røttingen, Ingolf (ICES CM Documents;1980/H:62, Working paper, 1980)
      Natural mortality for juvenile herring (Norwegian Spring spawners) is discussed on the basis of following data: 1. Acoustic estimates of the 1975 and 1976 yearclasses of herring as 0-group and estimates from tagging ...
    • Individual based spatial models with evolved fish behaviour 

      Huse, Geir; Giske, Jarl (ICES CM Documents;1998/J:16, Working paper, 1998)
      Due to spatial heterogeneity, the survival and growth of fishes depend upon their habitat. For mobile pelagic fishes, it hence becomes important to analyse the factors responsible for spatial dynamics in order to understand ...
    • Individual growth rate and age at first sexual maturity in atlantic salmon 

      Nævdal, Gunnar; Holm, Marianne; Lerøy, Rita; Møller, Dag (ICES CM Documents;1977/E:60, Working paper, 1977)
    • Individual growth rate and age at sexual maturity in rainbow trout 

      Nævdal, Gunnar; Holm, Marianne; Lerøy, Rita; Møller, Dag (ICES CM Documents;1978/F:22, Working paper, 1978)
      Growth rate and possible connection between growth rate and age at sexual maturity were studied on individually tagged rainbow trout from different sib groups. Great variation in growth rate and age at first sexual ...