Blar i Brage IMR på forfatter "Stenson, Garry B."

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    • Decline and Recovery of Atlantic Cod (Gadus morhua) Stocks throughout the North Atlantic 

      Lilly, George R.; Wieland, Kai; Rothschild, Brian J.; Sundby, Svein; Drinkwater, Ken; Brander, Keith; Ottersen, Geir; Carscadden, James E.; Stenson, Garry B.; Chouinard, Ghislain A.; Swain, Douglas P.; Daan, N.; Enberg, Katja; Hammill, Michael O.; Rosing-Asvid, Aqqalu; Svedäng, Henrik; Vázquez, Antonio (Chapter, 2008)
      Many stocks of Atlantic cod (Gadus morhua) on both sides of the North Atlantic are currently at much reduced levels of biomass, but this situation is not in all instances the result of long, continuous decline. Most Northwest ...

    • Decline and Recovery of Atlantic Cod (Gadus morhua) Stocks throughout the North Atlantic 

      Lilly, George R.; Wieland, Kai; Rothschild, Brian J.; Sundby, Svein; Drinkwater, Ken; Brander, Keith; Ottersen, Geir; Carscadden, James E.; Stenson, Garry B.; Chouinard, Ghislain A.; Swain, Douglas P.; Daan, N.; Enberg, Katja; Hammill, Michael O.; Rosing-Asvid, Aqqalu; Svedäng, Henrik; Vázquez, Antonio (Chapter, 2008)
      Many stocks of Atlantic cod (Gadus morhua) on both sides of the North Atlantic are currently at much reduced levels of biomass, but this situation is not in all instances the result of long, continuous decline. Most Northwest ...

    • Drift diving by hooded seals (Cystophora cristata) in the Northwest Atlantic Ocean 

      Andersen, Julie M.; Stenson, Garry B.; Skern-Mauritzen, Mette; Wiersma, Yolanda F.; Rosing-Asvid, Aqqalu; Hammill, Mike O.; Boehme, Lars (Journal article; Peer reviewed, 2014-07-22)
      Many pinniped species perform a specific dive type, referred to as a ‘drift dive’, where they drift passively through the water column. This dive type has been suggested to function as a resting/sleeping or food processing ...

    • Environmental drivers of population-level variation in the migratory and diving ontogeny of an Arctic top predator 

      Grecian, W. James; Stenson, Garry B.; Biuw, Martin; Boehme, Lars; Folkow, Lars; Goulet, Pierre J.; Jonsen, Ian D.; Malde, Aleksander; Nordøy, Erling Sverre; Rosing-Asvid, Aqqalu; Smout, Sophie (Peer reviewed; Journal article, 2022)
      The development of migratory strategies that enable juveniles to survive to sexual maturity is critical for species that exploit seasonal niches. For animals that forage via breath-hold diving, this requires a combination ...

    • Estimating Abundance of Seals in a Drifting Environment: 2005: Pup Production of Harp Seals, Pagophilus groenlandicus, in the Northwest Atlantic 

      Stenson, Garry B.; Hammill, Michael O.; Lawson, J.; Gosselin, J.F.; Haug, Tore (ICES CM Documents;2005/R:06, Working paper, 2005)
      Photographic and visual aerial surveys to determine current pup production of northwest Atlantic harp seals were conducted off Newfoundland and Labrador (the “Front”), and in the Gulf of St. Lawrence during March 2004. ...

    • Estimation of harp seal pup production in the Greenland Sea using spatial analysis on aerial survey data 

      Salberg, Arnt-Børre; Stenson, Garry B.; Haug, Tore; Nilssen, Kjell Tormod (ICES CM documents, Working paper, 2005)
      From 14 March to 6 April 2002 aerial surveys were carried out in the Greenland Sea packice to assess the pup production of the Greenland Sea population of harp seals Pagophilus groenlandicus. One xed-wing twin-engined ...

    • Harp Seals: Monitors of Change in Differing Ecosystems 

      Stenson, Garry B.; Haug, Tore; Hammill, Mike O. (Peer reviewed; Journal article, 2020)
      Harp seals are the most abundant marine mammal in the north Atlantic. As an ice obligatory predator, they reflect changes in their environment, particularly during a period of climatic change. As the focus of a commercial ...

    • Investigating Annual Diving Behaviour by Hooded Seals (Cystophora cristata) within the Northwest Atlantic Ocean 

      Andersen, Julie M.; Skern-Mauritzen, Mette; Boehme, Lars; Wiersma, Yolanda F.; Rosing-Asvid, Aqqalu; Hammill, Mike O.; Stenson, Garry B. (Journal article; Peer reviewed, 2013-11-25)
      With the exception of relatively brief periods when they reproduce and moult, hooded seals, Cystophora cristata, spend most of the year in the open ocean where they undergo feeding migrations to either recover or prepare ...

    • Multi-decadal trends in biomarkers in harp seal teeth from the North Atlantic reveal the influence of prey availability on seal trophic position 

      de la Vega, Camille; Kershaw, Joanna; Stenson, Garry B.; Frie, Anne Kirstine Højholt; Biuw, Martin; Haug, Tore; Norman, Louisa; Mahaffey, Claire; Smout, Sophie; Jeffreys, Rachel M. (Peer reviewed; Journal article, 2023)
      Arctic food webs are being impacted by borealisation and environmental change. To quantify the impact of these multiple forcings, it is crucial to accurately determine the temporal change in key ecosystem metrics, such as ...