Search Results - "Óskarsson, Guðmundur J."

Ocean warming expands habitat of a rich natural resource and benefits a national economy by Jansen, Teunis, Post, Søren, Kristiansen, Trond, Óskarsson, Guðmundur J., Boje, Jesper, MacKenzie, Brian R., Broberg, Mala, Siegstad, Helle

“…Geographic redistribution of living natural resources changes access and thereby harvesting opportunities between countries. Internationally shared fish…”
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Diet and feeding strategy of Northeast Atlantic mackerel (Scombrus scomber) in Icelandic waters by Kvaavik, Cecilia, Óskarsson, Gudmundur J, Daníelsdóttir, Anna Kristín, Marteinsdóttir, Gudrún

“…Predator-prey relations, as well as the trophic ecology of highly migratory marine species, is important to understand their impact on the ecosystem…”
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Adult body growth and reproductive investment vary markedly within and across Atlantic and Pacific herring: a meta-analysis and review of 26 stocks by dos Santos Schmidt, Thassya C., Hay, Doug E., Sundby, Svein, Devine, Jennifer A., Óskarsson, Guðmundur J., Slotte, Aril, Wuenschel, Mark J., Lajus, Dmitry, Johannessen, Arne, van Damme, Cindy J. G., Bucholtz, Rikke H., Kjesbu, Olav S.

“…Life-history traits of Pacific ( Clupea pallasii ) and Atlantic ( Clupea harengus ) herring, comprising both local and oceanic stocks subdivided into…”
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Changes towards stable good somatic condition and increased gonad investment of Norwegian spring-spawning herring (Clupea harengus) after 2005 are linked to extended feeding period by Homrum, Eydna í, Óskarsson, Guðmundur J., Ono, Kotaro, Hølleland, Sondre, Slotte, Aril

“…Norwegian spring spawning herring ( Clupea harengus ) migrate from spawning areas on the Norwegian shelf in February-March to feeding areas in the Norwegian…”
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Spatial Distribution of Different Age Groups of Herring in Norwegian Sea, May 1996–2020 by Eliasen, Sólvá Káradóttir, Homrum, Eydna Í., Jacobsen, Jan Arge, Kristiansen, Inga, Óskarsson, Guðmundur J., Salthaug, Are, Stenevik, Erling Kåre

“…The commercially important Norwegian spring spawning herring is characterized by its extensive annual migrations and, on a decadal timescale, large shifts in…”
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Stock structure of Atlantic herring Clupea harengus in the Norwegian Sea and adjacent waters by Pampoulie, Christophe, Slotte, Aril, Óskarsson, Guðmundur J., Helyar, Sarah J., Jónsson, Ásbjörn, Ólafsdóttir, Guðbjörg, Skírnisdóttir, Sigurlaug, Libungan, Lísa Anne, Jacobsen, Jan Arge, Joensen, Hóraldur, Nielsen, Henrik Hauch, Sigurðsson, Sindri Karl, Daníelsdóttir, Anna Kristin

“…The genetic structure of Atlantic herring Clupea harengus L. was investigated in its north-easterly distribution in the Norwegian Sea and adjacent waters,…”
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Variation in spatial distribution and migration of Icelandic summer-spawning herring by Óskarsson, Gudmundur J., Gudmundsdottir, A., Sigurdsson, T.

“…Óskarsson, G. J., Gudmundsdottir, A., and Sigurdsson, T. 2009. Variation in spatial distribution and migration of Icelandic summer-spawning herring. – ICES…”
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Variation in egg mass within two Atlantic herring Clupea harengus stocks by Óskarsson, Guðmundur J., Taggart, Christopher T., Stephenson, Robert L.

“…The main objective of this study was to investigate if egg size (mass) at spawning is invariant for Scotia‐Fundy summer and autumn (SFSH) and Icelandic summer…”
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Oogenesis and reproductive investment of Atlantic herring are functions of not only present but long-ago environmental influences as well by dos Santos Schmidt, Thassya C., Slotte, Aril, Kennedy, James, Sundby, Svein, Johannessen, Arne, Óskarsson, Gudmundur J., Kurita, Yutaka, Stenseth, Nils C., Kjesbu, Olav Sigurd

“…Following general life history theory, immediate reproductive investment (egg mass × fecundity/body mass) in oviparous teleosts is a consequence of both…”
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Quantifying changes in abundance, biomass, and spatial distribution of Northeast Atlantic mackerel ( Scomber scombrus ) in the Nordic seas from 2007 to 2014 by Nøttestad, Leif, Utne, Kjell R., Óskarsson, Guðmundur J., Jónsson, Sigurdur Þ., Jacobsen, Jan Arge, Tangen, Øyvind, Anthonypillai, Valantine, Aanes, Sondre, Vølstad, Jon Helge, Bernasconi, Matteo, Debes, Høgni, Smith, Leon, Sveinbjörnsson, Sveinn, Holst, Jens C., Jansen, Teunis, Slotte, Aril

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Environmental stressors may cause unpredicted, notably lagged life-history responses in adults of the planktivorous Atlantic herring by dos Santos Schmidt, Thassya C., Devine, Jennifer A., Slotte, Aril, Claireaux, Marion, Johannessen, Arne, Enberg, Katja, Óskarsson, Gudmundur J., Kennedy, James, Kurita, Yutaka, Kjesbu, Olav Sigurd

“…•Energy allocation patterns in herring are tightly coupled to ecosystem status.•Herring prioritizes body weight rather than body length to maintain body…”
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Considerations for management strategy evaluation for small pelagic fishes by Siple, Margaret C., Koehn, Laura E., Johnson, Kelli F., Punt, André E., Canales, T. Mariella, Carpi, Piera, de Moor, Carryn L., De Oliveira, José A. A., Gao, Jin, Jacobsen, Nis S., Lam, Mimi E., Licandeo, Roberto, Lindegren, Martin, Ma, Shuyang, Óskarsson, Guðmundur J., Sanchez‐Maroño, Sonia, Smoliński, Szymon, Surma, Szymon, Tian, Yongjun, Tommasi, Desiree, Gutiérrez T., Mariano, Trenkel, Verena, Zador, Stephani G., Zimmermann, Fabian

“…Management strategy evaluation (MSE) is the state‐of‐the‐art approach for testing and comparing management strategies in a way that accounts for multiple…”
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The genetic composition of feeding aggregations of the Atlantic mackerel (Scomber scombrus) in the central north Atlantic: a microsatellite loci approach by Gíslason, Davið, Helyar, Sarah J, Óskarsson, Guðmundur J, Ólafsdóttir, Guðbjörg, Slotte, Aril, Jansen, Teunis, Jacobsen, Jan Arge, Ólafsson, Kristinn, Skirnisdottir, Sigurlaug, Dahle, Geir, Siegstad, Helle, Joensen, Hóraldur, Curti, Kiersten L, Grégoire, François, Masse, Jacques, Sveinsson, Sæmundur, Daníelsdóttir, Anna Kristín, Pampoulie, Christophe

“…Abstract The impacts of climate change on marine ecosystems can be seen in the changing distribution, migration, and abundance of species in the oceans. For…”
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Observation and quantification of two incidents of mass fish kill of Icelandic summer spawning herring (Clupea harengus) in the winter 2012/2013 by Óskarsson, Guđmundur J., Ólafsdóttir, Sólveig R., Sigurđsson, Þorsteinn, Valdimarsson, Héđinn

“…The Icelandic summer‐spawning herring (Clupea harengus) stock overwinters in large, dense schools like other herring stocks. In the winter of 2012/2013 around…”
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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 by Olafsdottir, Anna H., Utne, Kjell Rong, Jacobsen, Jan Arge, Jansen, Teunis, Óskarsson, Guðmundur J., Nøttestad, Leif, Elvarsson, Bjarki Þ., Broms, Cecilie, Slotte, Aril

“…In the mid-2000s, summer feeding distribution of Northeast Atlantic mackerel (Scomber scombrus) in Nordic Seas began expanding into new areas. The present…”
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Horizontal distribution and overlap of planktivorous fish stocks in the Norwegian Sea during summers 1995-2006 by Utne, Kjell Rong, Huse, Geir, Ottersen, Geir, Holst, Jens Christian, Zabavnikov, Vladimir, Jacobsen, Jan Arge, Óskarsson, Guđmundur J., Nøttestad, Leif

“…The Norwegian Sea harbours several large pelagic fish stocks, which use the area for feeding during the summer. The period 1995-2006 had some of the highest…”
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Variation in reproductive potential and influence on Icelandic herring recruitment by ÓSKARSSON, GUDMUNDUR J., TAGGART, CHRISTOPHER T.

“…Explaining recruitment variation in fish is essential for successful fishery management and is consequently under constant review, with an increasing focus on…”
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Diel vertical feeding behaviour of Atlantic mackerel (Scomber scombrus) in the Irminger current by Jansen, Teunis, Post, Søren, Olafsdottir, Anna Heida, Reynisson, Páll, Óskarsson, Guðmundur J., Arendt, Kristine Engel

“…The main prey of the Atlantic mackerel undertake diel vertical migrations, however diel and vertical patterns in the feeding by mackerel remains poorly known…”
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Feeding ecology of mackerel and dietary overlap with herring in Icelandic waters by Óskarsson, Guðmundur J., Gudmundsdottir, Asta, Sveinbjörnsson, Sveinn, Sigurðsson, Þorsteinn

“…The Northeast Atlantic mackerel (Scomber scombrus) has been extending its summer feeding distribution north and west, including around Iceland, since around…”
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Climate-related variations in the occurrence and distribution of mackerel (Scomber scombrus) in Icelandic waters by Astthorsson, Olafur S, Valdimarsson, H, Gudmundsdottir, Asta, Oskarsson, Gumundur J

“…Abstract Astthorsson, O. S., Valdimarsson, H., Gudmundsdottir, A., and Óskarsson, G. J. 2012. Climate-related variations in the occurrence and distribution of…”
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