Blar i Articles på forfatter "Øien, Nils"
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A white humpback whale (Megaptera novaeangliae) in the Atlantic Ocean, Svalbard, Norway, August 2012
Lydersen, Christian; Øien, Nils; Mikkelsen, Bjarni; Bober, Simon; Fisher, Dan; Kovacs, Kit M. (Journal article; Peer reviewed, 2013-04-26)A white humpback whale (Megaptera novaeangliae) was observed on several occasions off Svalbard, Norway, during August 2012. The animal was completely white, except for a few small dark patches on the ventral side of its ... -
Abundance of minke whales (Balaenoptera acutorostrata) in the Northeast Atlantic: variability in time and space
Skaug, Hans Julius; Øien, Nils; Schweder, Tore; Bøthun, Gjermund (Journal article; Peer reviewed, 2004)Regional sighting surveys with two independent observers on each vessel were conducted each year from 1996 to 2001. Northern minke whales (Balaenoptera acutorostrata) are mostly solitary animals and are only available for ... -
Baleen whale distributions and prey associations in the Barents Sea
Skern-Mauritzen, Mette; Johannesen, Edda; Bjørge, Arne; Øien, Nils (Journal article; Peer reviewed, 2011-03-28)We investigated the spatial associations between minke Balaenoptera acutorostrata, fin B. physalus and humpback Megaptera novaeangliae whales and their prey in the Barents Sea in late summer of 2003 to 2007. During these ... -
Cetacean abundance and distribution in European Atlantic shelf waters to inform conservation and management
Hammond, Philip S.; Macleod, Kelly; Berggren, Per; Borchers, David L.; Burt, Louise; Cañadas, Ana; Desportes, Geneviève; Donovan, Greg P.; Gilles, Anita; Gillespie, Douglas; Gordon, Jonathan; Hiby, Lex; Kuklik, Iwona; Leaper, Russell; Lehnert, Kristina; Leopold, Mardik; Lovell, Phil; Øien, Nils; Paxton, C. G. M.; Ridoux, Vincent; Rogan, Emer; Samarra, Filipa; Scheidat, Meike; Sequeira, Marina; Siebert, Ursula; Skov, Henrik; Swift, René; Tasker, Mark L.; Teilmann, Jonas; Van Canneyt, Olivier; Vázquez, José Antonio (Journal article; Peer reviewed, 2013-06-11)The European Union (EU) Habitats Directive requires Member States to monitor and maintain at favourable conservation status those species identified to be in need of protection, including all cetaceans. In July 2005 we ... -
Distribution of rorquals and Atlantic cod in relation to their prey in the Norwegian high Arctic
Solvang, Hiroko K.; Haug, Tore; Knutsen, Tor; Gjøsæter, Harald; Bogstad, Bjarte; Hartvedt, Siri; Øien, Nils; Lindstrøm, Ulf (Peer reviewed; Journal article, 2021)Recent warming in the Barents Sea has led to changes in the spatial distribution of both zooplankton and fish, with boreal communities expanding northwards. A similar northward expansion has been observed in several rorqual ... -
Genetic population structure of minke whales Balaenoptera acutorostrata from Greenland, the North East Atlantic and the North Sea probably reflects different ecological regions
Andersen, Liselotte W.; Born, Erik W.; Dietz, Rune; Haug, Tore; Øien, Nils; Bendixen, Christian (Journal article; Peer reviewed, 2003-02-04)A genetic study to determine the population structure of minke whales Balaenoptera acutorostrata in Greenland, the Central and NE Atlantic and the North Sea was carried out on a sample of 306 individuals. Samples were ... -
Hva kan et register over vågehvalens DNA fortelle om atferd og biologi?
Skaug, Hans Julius; Haug, Tore; Øien, Nils (Ottar;nr. 280 - 2010, Journal article, 2010)DNA-registeret for vågehval inneholder data fra alle de ca. 7000 individene som er tatt av norshe hvalfangere siden 1997. De genetishe profilene gjør det mulig å studere bestandsstruktur, vandringsmønster og bestandsstørrelse. ... -
Hybrids between common and Antarctic minke whales are fertile and can back-cross
Glover, Kevin A.; Kanda, Naoisha; Haug, Tore; Pastene, Luis A; Øien, Nils; Seliussen, Bjørghild Breistein; Sørvik, Anne Grete Eide; Skaug, Hans Julius (Journal article; Peer reviewed, 2013-04-15)Background: Minke whales are separated into two genetically distinct species: the Antarctic minke whale found in the southern hemisphere, and the common minke whale which is cosmopolitan. The common minke whale is further ... -
Investigating Population Genetic Structure in a Highly Mobile Marine Organism: The Minke Whale Balaenoptera acutorostrata acutorostrata in the North East Atlantic
Quintela, Maria; Skaug, Hans Julius; Øien, Nils; Haug, Tore; Seliussen, Bjørghild B.; Solvang, Hiroko Kato; Pampoulie, Christophe; Kanda, Naohisa; Pastene, Luis A.; Glover, Kevin A. (Journal article; Peer reviewed, 2014-09-30)Inferring the number of genetically distinct populations and their levels of connectivity is of key importance for the sustainable management and conservation of wildlife. This represents an extra challenge in the marine ... -
Knølhvalen - en langpendler mellom Karibia og Barentshavet
Øien, Nils (Ottar; nr. 280 - 2010, Journal article, 2010)Om lag 1000-1500 knølhvaler beiter i Barentshavet og Norskehavet om sommeren. Vandringer på 8 000 km til yngleområdene i Karibia er kjent. Genetiske forskjeller mellom bestander i forskjellige beiteområder kan skyldes at ... -
Migration of Antarctic Minke Whales to the Arctic
Glover, Kevin A.; Kanda, Naohisa; Haug, Tore; Pastene, Luis A.; Øien, Nils; Goto, Mutsuo; Seliussen, Bjørghild Breistein; Skaug, Hans Julius (Journal article; Peer reviewed, 2010-12-22)The Antarctic minke whale (Balaenoptera bonaerensis), and the common minke whale found in the North Atlantic (Balaenoptera acutorostrata acutorostrata), undertake synchronized seasonal migrations to feeding areas at their ... -
North Atlantic humpback whale abundance and rate of increase four decades after protection from whaling
Stevick, Peter T.; Allen, Judith; Clapham, Phillip J.; Friday, Nancy; Katona, Steven K.; Larsen, Finn; Lien, Jon; Mattila, David K.; Palsbøll, P.J.; Sigurjónsson, Jóhann; Smith, Tim D.; Øien, Nils; Hammond, Philip S. (Journal article; Peer reviewed, 2003-08-29)Humpback whales Megaptera novaeangliae in the North Atlantic Ocean were severely depleted by exploitation. With legal protection since 1955, substantial recovery is likely to have occurred, but information on abundance ...