• Kunnskapsstatus leppefisk : Utfordringer i et økende fiskeri 

      Espeland, Sigurd Heiberg; Nedreaas, Kjell Harald; Mortensen, Stein H.; Skiftesvik, Anne Berit; Agnalt, Ann-Lisbeth; Durif, Caroline M.F.; Harkestad, Lisbeth S.; Karlsbakk, Egil; Knutsen, Halvor; Thangstad, Trond; Jørstad, Knut Eirik; Bjordal, Åsmund; Gjøsæter, Jakob (Fisken og havet;7-2010, Research report, 2010-11-15)
      Over the past few years there has been a rapid increase in the use of wrasses as cleanerfish for sealice on salmon farms. During 2010, the landed catch of wrasse was 440 tons, more than twice the 2009 catch and nearly ten ...
    • Phylogenetic and morphological characterisation of the green algae infesting blue mussel Mytilus edulis in the North and South Atlantic oceans 

      Rodríguez, Francisco; Feist, Stephen W.; Guillou, Laure; Harkestad, Lisbeth S.; Bateman, Kelly; Renault, Tristan; Mortensen, Stein H. (Journal article; Peer reviewed, 2008-09-24)
      Blue mussels Mytilus edulis with shell deformations and green pustules containing parasitic algae were collected at 3 coastal sites (Burøy, Norway; Bockholm, Denmark; Goose Green, Falkland Islands). A comparative study, ...
    • Picoeucaryot alga infecting blue mussel Mytilus edulis in southern Norway 

      Mortensen, Stein H.; Harkestad, Lisbeth S.; Stene, Rolf-Olav; Renault, Tristan (Journal article; Peer reviewed, 2005-01-25)
      During summer 2001, blue mussels Mytilus edulis with abnormal shell growth were collected near Kragerø, southern Norway. The mussels had green spots in their mantle tissues, mainly posteriorly and ventrally, and in the ...
    • Vibrio tapetis-like strain isolated from introduced Manila clams Ruditapes philippinarum showing symptoms of brown ring disease in Norway 

      Paillard, Christine; Korsnes, Kjetil; Le Chevalier, Patrick; Le Boulay, Christine; Harkestad, Lisbeth S.; Eriksen, Anne Grete; Willassen, Endre; Bergh, Øivind; Bovo, Clément; Skår, Cecilie Kristin; Mortensen, Stein H. (Journal article; Peer reviewed, 2008-08-27)
      The Manila clam Ruditapes philippinarum was introduced to Norway in 1987 and was produced in 2 hatcheries until 1991. Clam seed was planted at 6 sites. Two sites were on the Island of Tysnes, south of Bergen. Surviving ...
    • Wrasse (Labridae) as cleaner fish in salmonid aquaculture – The Hardangerfjord as a case study 

      Skiftesvik, Anne Berit; Blom, Geir; Agnalt, Ann-Lisbeth; Durif, Caroline M.F.; Browman, Howard I.; Bjelland, Reidun M.; Harkestad, Lisbeth S.; Farestveit, Eva; Paulsen, Ole Ingar; Fauske, Merete; Havelin, Trond; Johnsen, Knut; Mortensen, Stein (Journal article; Peer reviewed, 2013-10-15)
      Several species of wrasse (Labridae) are used as cleaner fish to remove salmon lice from farmed Atlantic salmon. We estimated the fishery and use of wrasse in Hardangerfjord. The estimated numbers of labrids used on salmon ...