Zobrazeno 1 - 10 of 23 pro vyhledávání: '"Bjarki Þór Elvarsson"'
1
Akademický článek
Automatic Fish Age Determination across Different Otolith Image Labs Using Domain Adaptation
Autor: Alba Ordoñez, Line Eikvil, Arnt-Børre Salberg, Alf Harbitz, Bjarki Þór Elvarsson
Publikováno v: Fishes, Vol 7, Iss 2, p 71 (2022)
The age determination of fish is fundamental to marine resource management. This task is commonly done by analysis of otoliths performed manually by human experts. Otolith images from Greenland halibut acquired by the Institute of Marine Research (No
Externí odkaz: https://doaj.org/article/eb4d975259eb4a39b9484ac6f5c1f252
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2
Akademický článek
Distribution, abundance and feeding ecology of baleen whales in Icelandic waters: have recent environmental changes had an effect?
Autor: Gísli Arnór Víkingsson, Daniel G. Pike, Anna eSchleimer, Héðinn eValdimarsson, Thorvaldur eGunnlaugsson, Teresa eSilva, Bjarki Þór Elvarsson, Bjarni eMikkelsen, Nils eÖien, Genevieve eDesportes, Valur eBogason, Philip eHammond
Publikováno v: Frontiers in Ecology and Evolution, Vol 3 (2015)
The location of Iceland at the junction of submarine ridges in the North-East Atlantic where warm and cold water masses meet south of the Arctic Circle contributes to high productivity of the waters around the island. During the last two decades, sub
Externí odkaz: https://doaj.org/article/4bad508201a24024a82921b520cd5e83
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5
Pan-Arctic suitable habitat model for Greenland halibut
Autor: Ole Thomas Albert, Adriana Nogueira, Mikko Vihtakari, Robinson Hordoir, Jørgen S. Christiansen, Meaghan Bryan, Elvar H. Hallfredsson, Margret A Treble, Bjarki Þór Elvarsson
Publikováno v: ICES Journal of Marine Science
Deep-sea marine fishes support important fisheries but estimates of their distributions are often incomplete as the data behind them may reflect fishing practices, access rights, or political boundaries, rather than actual geographic distributions. W
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::01b9b3d9bc94cfce39118aff500c594d
https://doi.org/10.1093/icesjms/fsab007
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6
Spatial and temporal variation in body mass and the blubber, muscle and visceral fat content of North Atlantic common minke whales
Autor: Bjarki Þór Elvarsson, Sverrir Daníel Halldórsson
Publikováno v: IWC Journal of Cetacean Research and Management. 21:59-70
The exponent for predicting total body mass from length has been studied in many species and here data on common minke whales from areas in the North Atlantic is added from both Icelandic and Norwegian research catches. The exponent was found to be n
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::248088fd146bf2e4054d2a5d4c0d3d6f
https://doi.org/10.47536/jcrm.v21i1.150
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7
Evidence of unidirectional hybridization and second‐generation adult hybrid between the two largest animals on Earth, the fin and blue whales
Autor: Anna Kristín Daníelsdóttir, Maria Iversen, Christophe Pampoulie, Bjarki Þór Elvarsson, Gísli A. Víkingsson, Valérie Chosson, Stefano Mariani, Marianne H. Rasmussen, Sverrir Daníel Halldórsson, Guðbjörg Ólafsdóttir, Davíð Gíslason
Publikováno v: Evolutionary Applications
Evolutionary Applications, Vol 14, Iss 2, Pp 314-321 (2021)
Biodiversity in the oceans has dramatically declined since the beginning of the industrial era, with accelerated loss of marine biodiversity impairing the ocean's capacity to maintain vital ecosystem services. A few organisms epitomize the damaging a
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a65f08339c2c0cce18e0c8a0cf9d7d57
https://doi.org/10.1111/eva.13091
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8
Migration patterns of Greenland halibut in the North Atlantic revealed by a compiled mark-recapture dataset
Autor: Mikko Vihtakari, Bjarki Þór Elvarsson, Margaret Treble, Adriana Nogueira, Kevin Hedges, Nigel E Hussey, Laura Wheeland, Denis Roy, Lise Helen Ofstad, Elvar H Hallfredsson, Amanda Barkley, Daniel Estévez-Barcia, Rasmus Nygaard, Brian Healey, Petur Steingrund, Torild Johansen, Ole Thomas Albert, Jesper Boje
Publikováno v: Vihtakari, M, Elvarsson, B P, Treble, M, Nogueira, A, Hedges, K, Hussey, N E, Wheeland, L, Roy, D, Ofstad, L H, Hallfredsson, E H, Barkley, A, Estevez-Barcia, D, Nygaard, R, Healey, B, Steingrund, P, Johansen, T, Albert, O T & Boje, J 2022, ' Migration patterns of Greenland halibut in the North Atlantic revealed by a compiled mark-recapture dataset ', ICES Journal of Marine Science, vol. 79, no. 6, fsac127, pp. 1902-1917 . https://doi.org/10.1093/icesjms/fsac127
ICES Journal of Marine Science
Marine fisheries are often allocated to stocks that reflect pragmatic considerations and may not represent the species’ spatial population structure, increasing the risk of mismanagement and unsustainable harvesting. Here we compile mark–recaptur
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b75dd468726e0f3202e3a5e989948b1d
https://orbit.dtu.dk/en/publications/3763694e-d2c4-487e-820d-a36d43743bc5
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9
Geographical expansion of Northeast Atlantic mackerel (Scomber scombrus) in the Nordic Seas from 2007 to 2016 was primarily driven by stock size and constrained by low temperatures
Autor: Bjarki Þór Elvarsson, Leif Nøttestad, Kjell Rong Utne, Teunis Jansen, Jan Arge Jacobsen, Anna H. Olafsdottir, Guðmundur J. Óskarsson, Cecilie Broms, Aril Slotte
Publikováno v: Olafsdottir, A H, Utne, K R, Jacobsen, J A, Jansen, T, Óskarsson, G J, Nøttestad, L, Elvarsson, B Þ, Broms, C & Slotte, A 2019, ' Geographical expansion of Northeast Atlantic mackerel (Scomber scombrus) in the Nordic Seas from 2007 to 2016 was primarily driven by stock size and constrained by low temperatures ', Deep-Sea Research. Part 2: Topical Studies in Oceanography, vol. 159, pp. 152-168 . https://doi.org/10.1016/j.dsr2.2018.05.023
In the mid-2000s, summer feeding distribution of Northeast Atlantic mackerel (Scomber scombrus) in Nordic Seas began expanding into new areas. The present study explores how spawning stock biomass (SSB) and environmental conditions influenced this ex
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::48a86309dfbd03630cc30c251f984a92
https://doi.org/10.1016/j.dsr2.2018.05.023
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10
When are model-based stock assessments rejected for use in management and what happens then?
Autor: Patrick D. Lynch, Christopher M. Legault, Owen S. Hamel, Bjarki Þór Elvarsson, Melissa A. Haltuch, Jemery Day, Michael J. Wilberg, Geoffrey N. Tuck, Allan C. Hicks, André E. Punt, Jason M. Cope, José A. A. De Oliveira, Cristian M. Canales, Carryn L De Moor, Mark Dickey-Collas
Publikováno v: Punt, A E, Tuck, G N, Day, J, Canales, C M, Cope, J M, de Moor, C L, De Oliveira, J A A, Dickey-Collas, M, Elvarsson, B Þ, Haltuch, M A, Hamel, O S, Hicks, A C, Legault, C M, Lynch, P D & Wilberg, M J 2020, ' When are model-based stock assessments rejected for use in management and what happens then? ', Fisheries Research, vol. 224, 105465 . https://doi.org/10.1016/j.fishres.2019.105465
Model-based stock assessments form a key component of the management advice for fish and invertebrate stocks worldwide. It is important for such assessments to be peer-reviewed and to pass scientific scrutiny before they can be used to inform managem
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cefa6e3b29c246a1b7a7a4a08f71b506
https://orbit.dtu.dk/en/publications/2d46f7f3-8967-4160-82d3-a2c66c78612d
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