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dc.contributor.advisorNilssen, Einar Magnus
dc.contributor.advisorSundet, Jan H.
dc.contributor.authorHansen, Harald Sakarias Brøvig
dc.date.accessioned2015-06-12T12:22:52Z
dc.date.available2015-06-12T12:22:52Z
dc.date.issued2015-05-15
dc.description.abstractThis thesis seeks to develop a better understanding of snow crab (Chionoecetes opilio), a nonnative species that has established in the Barents Sea. Very little is known about the species role in the ecosystem, but it can be perceived both as a pest and as a goldmine. It is expected that the population will accommodate a significant fishery. As a non-native benthic crustacean spreading throughout a continental shelf shared between Norway and Russia, snow crab is legally a challenging management object. This thesis attempts to predict probable future distribution of the Barents Sea snow crab as well as ecosystem effects, and discuss management challenges. The research subject has been approached with a combination of a literature review and a diet study. Snow crab can potentially colonize most of eastern, central and northern Barents Sea. As an omnivorous benthic feeder it will likely affect important ecosystem processes, but the severity of snow crabs impact is unknown. It might in fact strengthen the pelagic-benthic coupling in the Barents Sea. As it seems that snow crab is a sedentary species, most of the commercial stock is currently Russian, but it is likely that it will spread into Norwegian zones soon. Two potential management strategies for the Barents Sea snow crab are discussed; “the pest strategy” and “the ecosystem based fishery strategy”.en_US
dc.identifier.urihttps://hdl.handle.net/10037/7746
dc.identifier.urnURN:NBN:no-uit_munin_7333
dc.language.isoengen_US
dc.publisherUiT The Arctic University of Norwayen_US
dc.publisherUiT Norges arktiske universiteten_US
dc.rights.accessRightsopenAccess
dc.rights.holderCopyright 2015 The Author(s)
dc.subject.courseIDFSK-3910en_US
dc.subjectSnow craben_US
dc.subjectChionoecetes opilioen_US
dc.subjectNon-native speciesen_US
dc.subjectInvasive speciesen_US
dc.subjectPesten_US
dc.subjectTransformeren_US
dc.subjectImmigranten_US
dc.subjectSedentaryen_US
dc.subjectBarents Seaen_US
dc.subjectLoopholeen_US
dc.subjectSvalbard fishery protection zoneen_US
dc.subjectFisheries managementen_US
dc.subjectDiet studyen_US
dc.subjectStomach analysisen_US
dc.subjectSnøkrabbeen_US
dc.subjectVDP::Landbruks- og Fiskerifag: 900::Fiskerifag: 920en_US
dc.subjectVDP::Agriculture and fishery disciplines: 900::Fisheries science: 920en_US
dc.titleSnow crab (Chionoecetes opilio) in the Barents Sea. Diet, biology and managementen_US
dc.typeMaster thesisen_US
dc.typeMastergradsoppgaveen_US


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