Browsing Brage IMR by Author "Skaret, Georg"
Now showing items 1-20 of 41
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A comparison of biological trends from four marine ecosystems: synchronies, differences, and commonalities
Link, Jason S.; Stockhausen, William; Skaret, Georg; Overholtz, William; Megrey, Bernard A.; Gjøsæter, Harald; Gaichas, Sarah; Dommasnes, Are; Falk-Petersen, Jannike; Aydin, Kerim; Kane, Joseph; Mueter, Franz; Friedland, Kevin; Hare, Jon (ICES CM documents;2007/D:09, Working paper, 2007) -
A comparison of community and trophic structure in five marine ecosystems based on energy budgets and system metrics
Gaichas, Sarah; Skaret, Georg; Falk-Petersen, Jannike; Link, Jason S.; Overholtz, William; Megrey, Bernard A.; Gjøsæter, Harald; Stockhausen, William; Dommasnes, Are; Friedland, Kevin; Aydin, Kerim (ICES CM documents;2007/D:11, Working paper, 2007)As part of the international MENU collaboration, energy budget models for five marine ecosystems were compared to identify differences and similarities in trophic and community characteristics across ecosystems. We examined ... -
A cross-ecosystem comparison of temporal variability in recruitment of functionally analogous fish stocks
Megrey, Beatriz Diaz; Hare, Jon; Dommasnes, Are; Gjøsæter, Harald; Stockhausen, William; Overholtz, William; Gaichas, Sarah; Skaret, Georg; Falk-Petersen, Jannike; Link, Jason S.; Friedland, Kevin (ICES CM documents;2007/D:10, Working paper, 2007)As part of the international MENU collaboration, variability in temporal patterns of recruitment and spawning stock were compared among functionally analogous species from four marine ecosystems including the Gulf of ... -
Acoustic manual for the krill synoptic survey in 2019
macaulay, gavin; Skaret, Georg; Knutsen, Tor; Bergstad, Odd Aksel; Krafft, Bjørn Arne (CCAMLR;WG-EMM-18/12, Research report, 2018)The previously presented document at the 2018 ASAM WG meeting (ASAM-18-07) described a design and plans for a synoptic krill acoustic survey in CCAMLR area 48 in 2019. The survey involves the collaborative efforts of Norway, ... -
Adaptive mass formations in fish shoals founded in conflicting motivation
Johnsen, Espen; Skaret, Georg (Journal article; Peer reviewed, 2008-04-21)The organising principles behind adaptive collective formations in animals are not well understood. Here we document that persistent vertical hourglass formations occur during the critical spawning period in huge shoals ... -
An Antarctic krill (Euphausia superba) hotspot - population characteristics, abundance and vertical structure explored from a krill fishing vessel
Krafft, Bjørn Arne; Skaret, Georg; Knutsen, Tor (Conference object, 2016) -
An Antarctic krill (Euphausia superba) hotspot: population characteristics, abundance and vertical structure explored from a krill fishing vessel
Krafft, Bjørn Arne; Skaret, Georg; Knutsen, Tor (Journal article; Peer reviewed, 2015-06-17) -
An Ecopath with Ecosim model of the Norwegian Sea and Barents Sea validated against time series of abundance
Skaret, Georg; Pitcher, Tony J. (Fisken og havet;7-2016, Research report, 2016-06-17)We here present a fitted and partly validated Ecopath with Ecosim model for the Norwegian Sea and Barents Sea. Ecopath mass-balance model parameters were obtained from the literature on Norwegian and Barents Sea organisms ... -
Antarctic krill and apex predators in the South Orkney Islands area 2011, surveyed with the commercial fishing vessel Saga Sea
Krafft, Bjørn A.; Skaret, Georg; Calise, Lucio (Rapport fra Havforskningen;Nr. 6-2011, Working paper, 2011-05) -
Antarctic krill and apex predators in the South Orkney Islands area 2012, surveyed with the commercial fishing vessel Juvel
Skaret, Georg; Krafft, Bjørn A.; Trathan, Phil (Rapport fra Havforskningen;Nr. 9-2013, Working paper, 2013-04) -
Antarctic krill and ecosystem monitoring survey at South Orkney Islands in 2015, and assessing escape mortality of krill in trawls
Skaret, Georg; Krafft, Bjørn A.; Krag, Ludvig A.; Pedersen, Ronald (Rapport fra Havforskningen;9-2015, Working paper, 2015-05) -
Antarctic krill and ecosystem monitoring survey at South Orkney Islands in 2016
Krafft, Bjørn Arne; Skaret, Georg; Krag, Ludvig Ahm; Rustand, Torborg; Pedersen, Ronald (Rapport fra havforskningen;20-2016, Research report, 2016)Small scaled Russian exploratory fishing for krill in the Southern Ocean began in the late 1960s. During the 1970s the fisheries increased and annual catches of krill have exhibited a number of fluctuations since the ... -
Antarctic krill and ecosystem monitoring survey off the South Orkney Islands in 2018
Krafft, Bjørn Arne; Skaret, Georg; Krag, Ludvig Ahm; Pedersen, Ronald (Rapport fra havforskningen;16-2018, Research report, 2018)Environmental monitoring along set transect lines off South Orkney Islands, Southern Ocean. Executed annual surveys (since 2011) to collect acoustic and biological data on krill, other macro zooplankton and data on krill ... -
Antarctic krill and ecosystem monitoring survey off the South Orkney islands in 2018
Krafft, Bjørn Arne; Skaret, Georg; Krag, Ludvig Ahm; Pedersen, Ronald (CCAMLR;WG-EMM-18/P03, Research report, 2018) -
Antarctic krill swarm characteristics in the Southeast Atlantic sector of the Southern Ocean
Krafft, Bjørn A.; Skaret, Georg; Knutsen, Tor; Melle, Webjørn; Klevjer, Thor A.; Søiland, Henrik (Journal article; Peer reviewed, 2012-09-28)Knowledge about swarm dynamics and underlying causes is essential to understand the ecology and distribution of Antarctic krill Euphausia superba. We collected acoustic data and key environmental data continuously across ... -
At-sea distribution and prey selection of Antarctic petrels and commercial fisheries
Descamps, Sebastien; Tarroux, Arnaud; Cherel, Yves; Delord, Karine; Godø, Olav Rune; Kato, Akiko; Krafft, Bjørn Arne; Lorentsen, Svein-Håkon; Ropert-Coudert, Yan; Skaret, Georg; Varpe, Øystein (CCAMLR;WG-EMM-16/P15, Conference object, 2016) -
At-Sea Distribution and Prey Selection of Antarctic Petrels and Commercial Krill Fisheries
Descamps, Sebastien; Tarroux, Arnaud; Cherel, Yves; Delord, Karine; Godø, Olav Rune; Kato, Akiko; Krafft, Bjørn Arne; Lorentsen, Svein-Håkon; Ropert-Coudert, Yan; Skaret, Georg; Varpe, Øystein (Journal article; Peer reviewed, 2016-08-17)Commercial fisheries may impact marine ecosystems and affect populations of predators like seabirds. In the Southern Ocean, there is an extensive fishery for Antarctic krill Euphausia superba that is projected to increase ... -
Cruise report on northeast Atlantic mackerel (Scomber scombrus) abundance and distribution in the North Sea and west of the British Isles from 1st to 20th of October 2012
Peña, Hector; Røttingen, Jostein; Skaret, Georg; Utne, Kjell R.; Nøttestad, Leif (Toktrapport/Havforskningsinstituttet;Nr. 4 - 2012, Working paper, 2012)This report summarizes the findings of the Northeast Atlantic (NEA) mackerel research cruise from 1st to 20th of October 2012. Two chartered fishing vessels, M/V “Brennholm” and M/V “Christina E” covered areas in the ... -
Distribution of Antarctic krill and apex predators at South Orkney Islands in 2014, and assessing escape mortality of krill in trawls
Krafft, Bjørn A.; Krag, Ludvig A.; Klevjer, Thor A.; Skaret, Georg; Pedersen, Ronald (Rapport fra Havforskningen;Nr. 10-2014, Working paper, 2014) -
Due south. RV "G. O. Sars" braves the notorious southern Ocean in search of swarming Euphasia superba
Iversen, Svein A.; Skaret, Georg (Journal article, 2012-09)