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Havforskningsinstituttet HI Åpne/Lukke hovedmeny
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Elvar H. Hallfredsson

HI 041810 cr
Forsker
Telefon: 92609745
Avdeling: Dyphavsarter og bruskfisk
Arbeidsområde

Arbeidsområde

Forskning og forvaltningsrettet rådgiving på dyphavsfisk.

Bestandsansvarlig for blåkveite og vassild på HI og i ICES, som innebærer ansvar for rådgivingen på disse artene.

Curriculum Vitae

Curriculum Vitae

Utdanning etter artium:

2001 - 2006 Doctor scient. i fiskeribiologi ved Norges Fiskerihøgskole/Universitet i Tromsø.
1994 - 1998 Cand. mag. og Cand. scient. i ressursbiologi ved Norges Fiskerihøgskole/Universitetet i Tromsø.
1986 - 1989 DH - kandidat i akvakultur ved Sogn og Fjordene Distriktshøgskole.
1985 - 1986 VK-1 i akvakultur ved Ytre Namdal Videregående Skole.

Yrkeserfaring:
Stillinger:
2007 -          Forsker Havforskningsinstituttet.
2006 - 2007 Førsteamanuensis ved Norges Fiskerihøgskole.
2001 - 2006 Stipendiat og amanuensis ved Norges Fiskerihøgskole.
2000 - 2001 Universitetslektor ved Norges Fiskerihøgskole.
1998 - 2000 Bearbeiding av biologiske prøver for Akvaplan niva og Fiskeriforskning. Undervisning ved Norges Fiskerihøgskole. Undervisning ved Breivika videregående skole.
1990 - 1994 Undervisning i grunnskole/leirskole, Héraðsskólinn að Reykjum.
1989 - 1990 Forskningstekniker ved Institutt for Ferskvannsfiske på Island.
1984 - 1985 Butikk medarbeider i it-avdeling, Bókabúð Braga.
Annet midlertidig arbeid:
Rognkjeksfiske fra Stykkishólmur på Island: 14 vårsesonger. Røkter to somrer ved havbeitestasjon, Silfurlax h/f. Akvaplan niva: Tre somrer ved analyser av bunnprøver.
Norges Fiskerihøgskole: Forsknings tokter, analyse av prøver, hjelpelærer på forskjellige kurser. Flere kortvarige jobber i studietiden som fisker, i fiskeindustri, i fiskeoppdrett m.m.

Publikasjoner

Publikasjoner

Vitenskapelige artikler (NVI)

2023

Arctic Fisheries Working Group (AFWG; outputs from 2022 meeting)

Daniel Howell, Jane Aanestad Godiksen, Caroline Aas Tranang, Erik Berg, Matthias Bernreuther, Bjarte Bogstad, Olav Nikolai Breivik, Jose Miguel Casas, Laura Clain, Elise Eidset, Elena Eriksen, Johanna Jennifer Elisabeth Fall, Maria Fossheim, Harald Gjøsæter, Sofie Gundersen, Elvar Halldor Hallfredsson, Hannes Höffle, Edda Johannessen, Kjell Harald Nedreaas, Anders Nielsen, Georg Skaret, Arved Staby, Brian Stock, Samuel Subbey, Ross Tallman, John Tyler Trochta, Tone Vollen, Kristin Windsland
ICES Scientific Reports 5 p. 1-507
2023

Wind-driven upwelling of iron sustains dense blooms and food webs in the eastern Weddell Gyre

Sebastian Moreau, Tore Hattermann, Laura de Steur, Hanna Maria Kauko, Heidi Ahonen, Murat van Ardelan, Philipp Assmy, Melissa Chierici, Sebastien Descamps, Tilman Dinter, Tone Falkenhaug, Agneta Fransson, Eirik Grønningsæter, Elvar Halldor Hallfredsson, Oliver Huhn, Anais Lebrun, Andrew Lowther, Nico Lübcker, Pedro Monteiro, Ilka Peeken, Alakendra Roychoudhury, Magdalena Różańska, Thomas Ryan-Keogh, Nicolas Sanchez Puerto, Asmita Singh, Jan Henrik Simonsen, Nadine Steiger, Sandy J. Thomalla, Andre van Tonder, Josef M Wiktor, Harald Steen
Nature Communications 14
2022

Migration patterns of Greenland halibut in the North Atlantic revealed by a compiled mark-recapture dataset

Mikko Vihtakari, Bjarki Pór Elvarsson, Margaret Treble, Adriana Nogueira, Kevin Hedges, Nigel E. Hussey, Laura Wheeland, Denis Roy, Lise Helen Ofstad, Elvar Halldor Hallfredsson, Amanda Barkley, Daniel Estevez-Barcia, Rasmus Nygaard, Brian Healey, Petur Steingrund, Torild Johansen, Ole Thomas Albert, Jesper Boje
ICES Journal of Marine Science 79 p. 1902-1917
2021

Phenology and Environmental Control of Phytoplankton Blooms in the Kong Håkon VII Hav in the Southern Ocean

Hanna Maria Kauko, Tore Hattermann, Thomas J. Ryan-Keogh, Asmita Singh, Laura de Steur, Agneta Fransson, Melissa Chierici, Tone Falkenhaug, Elvar H. Hallfredsson, Gunnar Bratbak, Tatiana Margo Tsagaraki, Terje Berge, Qin Zhou, Sebastien Moreau
Frontiers in Marine Science 8
2021

Pan-Arctic suitable habitat model for Greenland halibut

Mikko Vihtakari, Robinson Hordoir, Margret A Treble, Meaghan D. Bryan, Bjarki Elvarsson, Adriana Nogueira, Elvar H Hallfredsson, Jørgen Schou Christiansen, Ole Thomas Albert
ICES Journal of Marine Science 78 p. 1340-1356
2017

Future harvest of living resources in the Arctic Ocean north of the Nordic and Barents Seas: A review of possibilities and constraints

Tore Haug, Bjarte Bogstad, Melissa Chierici, Harald Gjøsæter, Elvar H. Hallfredsson, Åge Sigurd Høines, Alf Håkon Hoel, Randi Brunvær Ingvaldsen, Lis Lindal Jørgensen, Tor Knutsen, Harald Loeng, Lars Johan Naustvoll, Ingolf Røttingen, Knut Sunnanå
Fisheries Research 188 p. 38-57
2016

Predation on early life stages is decisive for year-class strength in the Barents Sea capelin (Mallotus villosus) stock

Harald Gjøsæter, Elvar H. Hallfredsson, Nina Mikkelsen, Bjarte Bogstad, Torstein Pedersen
ICES Journal of Marine Science 73 p. 182-195
2015

Different maturity scales affect estimations of fecundity, TEP and spawning stock size of Greenland halibut, Reinhardtius hippoglossoides (Walbaum, 1792)

Lara Agulló Núñez, Elvar H. Hallfredsson, Inger-Britt Falk-Petersen
Marine Biology Research 11 p. 824-833
2009

Effects of predation from juvenile herring (Clupea harengus) on mortality rates of capelin (Mallotus villosus) larvae

Elvar H. Hallfredsson, Torstein Pedersen
Canadian Journal of Fisheries and Aquatic Sciences 66 p. 1693-1706
2007

Estimation of digestion rates for herring Clupea harengus L. feeding on fish larvae

Elvar H. Hallfredsson, Torstein Pedersen, Kim Præbel
Journal of Fish Biology 70 p. 638-643
2007

Effects of predation from pelagic 0-group cod (Gadus morhua) on mortality rates of capelin (Mallotus villosus) larvae in the Barents Sea

Elvar H. Hallfredsson, Torstein Pedersen
Canadian Journal of Fisheries and Aquatic Sciences 64 p. 1710-1722
2007

Modelling the growth, mortality, and predation interactions of cod juveniles and capelin larvae in the Barents Sea using a novel proto-moment population dynamics model

Elvar H. Hallfredsson, John Pope
ICES Journal of Marine Science 64 p. 1313-1323
2006

Effects of alternative prey on predation intensity from herring Clupea harengus and sandeel Ammodytes marinus on capelin Mallotus villosus larvae in the Barents Sea

Jane Godiksen, Elvar H. Hallfredsson, Torstein Pedersen
Journal of Fish Biology 69 p. 1807-1823

Vitenskapelige foredrag

2017

Deep-sea fish communities at the eastern slope of the Norwegian Sea - Environmental gradients and vulnerability to multiple stressors

Hallfredsson EH, Primicerio R

Faglige foredrag

2020

Exploring the emergent niche of Greater argentine (Argentina silus) along gradients of topography, light and advection

Tom Jasper Langbehn, Andeol Bourgouin, Katja Enberg, Elvar H. Hallfredsson, Christian Jørgensen
2017

The Hinlopen area - a regional hotspot north of Svalbard?

Randi Brunvær Ingvaldsen, Knut Yngve Børsheim, Harald Gjøsæter, Elvar H. Hallfredsson, Tore Haug, Lis Lindal Jørgensen, Tor Knutsen, Sebastian Menze
2017

The Hinlopen area - a regional hotspot north of Svalbard?

Randi Brunvær Ingvaldsen, Harald Gjøsæter, Tore Haug, Lis Lindal Jørgensen, Tor Knutsen, Sebastian Menze, Elvar H. Hallfredsson
2015

Use of Acoustic Observations in Assessment of Deep Sea Fish: Case Study Greater Silver Smelt (Argentina silus) in Norwegian Water

Elvar H. Hallfredsson, Alf Harbitz
2013

Different maturity scales affect estimations of fecundity, TEP and spawning stock size of Greenland halibu, Reinhardtius hippoglossoides (Walbaum)

Lara Nunez, Elvar H. Hallfredsson, Inger-Britt Falk-Petersen
2012

Kvoteutsiktene for de viktigste fiskeslagene de neste 5 årene

Ole Arve Misund, Bjarte Bogstad, tore Haug, Elvar H. Hallfredsson, Irene Huse, Carsten Hvingel, Åge Sigurd Høines, Randi Ingvaldsen, Espen Johnsen, Leif Nøttestad, Erling Kåre Stenevik, Sigurd Tjelmeland, Else Torstensen, Nils Inge Øien

Poster

2021

Exploring the emergent niche of Greater silver smelt (Argentina silus) along gradients of topography, light and advection

Tom Jasper Langbehn, Andeol Bourgouin, Katja Enberg, Elvar H. Hallfredsson, Christian Jørgensen
2015

A new ICES assessment model for Greenland halibut in the Barents Sea: making the best use of the available data

Daniel Howell, Elvar H. Hallfredsson, Tone Vollen, Oleg Smirnov
2009

Fishes below 400 m depth in Norwegian Waters: Vulnerability and management

Elvar H. Hallfredsson, Tone Vollen, Lise Heggebakken, Benjamin Planque, Ole Thomas Albert
2004

Effects of prey size and type on predation intensity from herring (Clupea harengus) and sand eel (Ammodytes tobianus) on capelin (Mallotus villosus) larvae in the Barents Sea

Jane Godiksen, Elvar H. Hallfredsson, Torstein Pedersen
2003

Predation from juvenile herring and 0-group cod on capelin larvae in the Barents Sea

Elvar H. Hallfredsson, Jane Amtoft Godiksen, Atli Konradsson, Torstein Pedersen

Rapporter og avhandlinger

2021

WORKING GROUP ON THE BIOLOGY AND ASSESSMENT OF DEEP-SEA FISHERIES RESOURCES (WGDEEP)

Elvar Halldor Hallfredsson, Ivone Figueiredo, Elisa Barreto, James Bell, Erik Berg, Guzman Diez, Inês Farias, Hege Øverbø Hansen, Lise Heggebakken, Kristin Helle, Juan Gil Herrera, Vladimir Khlivnoi, Wendell Medeiros Leal, Pascal Lorance, David Miller, Pablo Duran Munoz, Lise Helen Ofstad, Hannipoula Olsen, Martin Pastoors, Lionel Pawlowski, Bruno Almón Pazos, Mario Rui Pinho, Régis Souza Santos, Warsha Singh, Anika Anika Sonjudóttir, Ricardo Sousa, Gudmundur Thordarson, Rui Vieira
2021

Arctic Fisheries Working Group (AFWG). ICES Scientific Reports 3:58.

Daniel Howell, Jane Aanestad Godiksen, Erik Berg, Mattias Bernreuther, Bjarte Bogstad, Jose Miguel Casas, Thomas de Lange Wenneck, Elena Eriksen, Johanna Jennifer Elisabeth Fall, Anatoly A. Filin, Harald Gjøsæter, Elvar H. Hallfredsson, Hannes Höffle, Edda Johannesen, Yuri A. Kovalev, Kjell Harald Nedreaas, Holly Ann Perryman, Dmitry Prozorkevitch, Alexey A. Russkikh, Silje Elisabeth Seim, Arved Staby, Ross Tallman, Mikko Vihtakari, Tone Vollen, Kristin Windsland, Natalia A. Yaragina
2021

Innspill til høring - Forslag til program for konsekvensutredning for mineralvirksomhet på norsk sokkel

Terje van der Meeren, Kjell Arne Mork, Tina Kutti, Tor Knutsen, Espen Bagøien, Anne Kirstine Højholt Frie, Harald Gjøsæter, André Marcel Bienfait, Julia Endresen Storesund, Katherine Mary Dunlop, Kristin Windsland, Elvar H. Hallfredsson, Kristin Helle, Hannes Höffle, Claudia Junge, Bjørn Serigstad, Melissa Chierici
2020

Arctic Fisheries Working Group (AFWG).

Caroline Aas Tranang, Asgeir Aglen, Matthias Bernreuther, Bjarte Bogstad, Anatolii Chetyrkin, Elise Eidset, Johanna Jennifer Elisabeth Fall, Anatolii Filin, Elvar Halldor Hallfredsson, Hannes Höffle, Daniel Howell, Yuri Kovalev, Kjell Harald Nedreaas, Anders Nielsen, Aleksei Russkikh, Arved Staby, Kristin Windsland, Natalia A. Yaragina
2020

Working Group on the Biology and Assessment of Deep-sea Fisheries Resources (WGDEEP).

Elvar H. Hallfredsson, Ivone Figueiredo, Erik Berg, Guzman Diez, Hege Øverbø Hansen, Lise Heggebakken, Kristin Helle, Juan Gil Herrera, Wendell Medeiros Leal, Pascal Lorance, David Miller, Lise Helen Ofstad, Martin Pastoors, Bruno Almón Pazos, Mario Rui Pinho, Régis Souza Santos, Fróði B. Skúvadal, Anika Sonjudóttir, Joana Vasconcelos, Rui Vieira, Pamela Woods
2020

Status for miljøet i Barentshavet: Rapport fra Overvåkingsgruppen 2020

Anders Jelmert, Anne Britt Sandø, Anne Kirstine Højholt Frie, Bjarte Bogstad, Bjørn Einar Grøsvik, Elena Eriksen, Elvar H. Hallfredsson, Erling Kåre Stenevik, Espen Bagøien, Geir Ottersen, Georg Skaret, Gro Ingleid van der Meeren, Hannes Höffle, Ida Vee, Josefina Johansson, Lis Lindal Jørgensen, Margaret McBride, Melissa Chierici, Padmini Dalpadado, Per Arneberg, Randi Brunvær Ingvaldsen, Sylvia Frantzen, Vidar Surén Lien, Åge Sigurd Høines, Agneta Fransson, Arild Sundfjord, Cecilie von Quillfeldt, Christian Lydersen, Haakon Hop, Hallvard Strøm, Hanne Johnsen, Heli Anna Irmeli Routti, Ida Kristin Danielsen, Jon Aars, Kit M. Kovacs, Lisa Bjørnsdatter Helgason, Mikhail Itkin, Olga Pavlova, Philipp Assmy, Sebastien Descamps, Sigrid Lind, Sebastian Gerland, Gunnar Skotte, Kristine O. Stene, Øystein Leiknes, Hilde Kristin Skjerdal, Henning Jensen, Andre Frantzen Jensen, Norman Whitaker Green, Svein Håkon Lorentsen
2019

Working Group on the Biology and Assessment of Deep-sea Fisheries Resources (WGDEEP).

Elvar H. Hallfredsson, Pascal Lorance, Erik Berg, HelleTorp Christiansen, Guzman Diez, Inês Farias, Ivone Figueiredo, Hege Øverbø Hansen, Lise Heggebakken, Kristin Helle, Juan Gil Herrera, Teresa Moura, Julius Nilsen, Lise Helen Ofstad, Martin Pastoors, Bruno Almón Pazos, Mario Rui Rilho de Pinho, Magnus Torlacius, Rui Vieira, Pamela Woods
2019

Working Group on the Biology and Assessment of Deep-sea Fisheries Resources (WGDEEP).

Editors: Elvar H. Hallfredsson, Pascal Lorance. Authors: Erik Berg, Helle Torp Christensen, Guzmán Diez, Inês Farias, Ivone Figueiredo, Elvar H. Hallfredsson, Hege Øverbø Hansen, Lise Heggebakken, Kristin Helle, Juan Gil Herrera, Pascal Lorance, Teresa Moura, Julius Nielsen, Lise Helen Ofstad, Martin Pastoors, Bruno Almón Pazos, Mário Rui Rilho de Pinho, Magnus Thorlacius, Rui Vieira, Pamela Woods
ICES Scientific Reports 1:21 p. 998
2017

Cruise report SI_ARCTIC / Arctic Ecosystem survey R/V Helmer Hanssen, 2-16 September 2016

Randi Brunvær Ingvaldsen, Harald Gjøsæter, Elvar H. Hallfredsson, Tore Haug, Aino Laila Johanna Hosia, Lis Lindal Jørgensen, Tor Knutsen, helene Hodal, Sebastian Menze, Lars Johan Naustvoll
2017

Report of the Arctic Fisheries Working Group, Copenhagen, 19-25 April 2017. ICES C.M. 2017/ACOM:06

Daniel Howell, Asgeir Aglen, Bjarte Bogstad, Anatoly Chetyrkin, Elvar H. Hallfredsson, Yuri A. Kovalev, Sarah-Louise Millar, Benjamin Planque, Alexey A. Russkikh, Arved Staby, Sam Subbey, Dmitry A. Vasilyev, Natalia A. Yaragina, Tone Vollen, Matthias Bernreuther, Jose Miguel Casas, Ross Tallman
2017

Report of the Working Group on the Integrated Assessments of the Barents Sea. WGIBAR 2017 Report, 16-18 March 2017. Murmansk, Russia. ICES CM 2017/SSGIEA:04

Elena Eriksen, Anatoly A. Filin, Espen Bagøien, Bjarte Bogstad, Anatoly Chetyrkin, Tatiana Prokhorova, Dmitry A. Prozorkevich, Alexey A. Russkikh, Hein Rune Skjoldal, Aleksander Trofimov, Harald Gjøsæter, Natalia A. Strelkova, Lis Lindal Jørgensen, Georg Skaret, Vidar Surén Lien, Elvar H. Hallfredsson, Hilde Elise Heldal, Raul Primicerio, Andrey Zhilin, Oleg Titov, Mikhail Novikov, Per Arneberg, Roman Klepikovsky, Aleksander Benzik, Irina P. Prokopchuk
2016

Report of the Arctic Fisheries Working Group (AFWG), Dates 19-25 April 2016, ICES HQ, Copenhagen, Denmark.ICES CM 2016/ACOM:06.

Gjert Endre Dingsør, Asgeir Aglen, Erik Berg, Matthias Bernreuther, Bjarte Bogstad, Jose Miguel Casas, Anatoly Chetyrkin, Åge Fotland, Elvar H. Hallfredsson, Alf Harbitz, Daniel Howell, Yuri A. Kovalev, Sigbjørn Mehl, Andrey Mikhaylov, Benjamin Planque, Alexey Russkikh, Arved Staby, Ross Tallman, Dmitry Vasiliyev, Tone Vollen, Natalia A. Yaragina
2016

Greater silver smelt in ICES areas I, II, IIIa and IV. WD for ICES WGDEEP 2016.

Elvar H. Hallfredsson, Odd Aksel Bergstad, Lise Heggebakken, Hege Øverbø Hansen
2013

ICES Arctic Fisheries (AFWG) REPORT 2013

Bjarte Bogstad, Asgeir Aglen, Ilya Antonov, Matthias Bernreuther, Vladimir Borisov, Jose Miguel Casas, Anatoly Chetyrkin, Gjert Endre Dingsør, Anatoly A. Filin, Åge Fotland, Elvar H. Hallfredsson, Daniel Howell, Yuri A. Kovalev, Sigbjørn Mehl, Pavel Murashko, Kjell Harald Nedreaas, Benjamin Planque, Alexey Russkikh, Oleg Smirnov, Jan Erik Stiansen, Ross Tallman, Oleg Titov, Natalia A. Yaragina
2010

Report of the Benchmark Workshop on Deep-water Species (WKDEEP)

Organization ICES, Elvar H. Hallfredsson
2010

Report of the Working Group on the Biology and Assessment of Deep‐sea Fisheries Resources (WGDEEP)

Organization ICES, Elvar H. Hallfredsson
2009

Kvoteråd for vassildfiske i norsk sone 2010

Elvar H. Hallfredsson, Alf Harbitz, Ole Thomas Albert
2006

Fish predation on capelin larvae Mallotus villosus in the Barents Sea, in relation to recruitment

Hallfredsson, Elvar H.
2004

Prey recognition of capelin (Mallotus villosus) larvae in juvenile cod (Gadus morhua L.) stomachs

Kjell Roger Andersen, Elvar H. Hallfredsson, Torstein Pedersen
2004

Effects of predation from juvenile herring on mortality rates of capelin larvae in the Barents Sea

Elvar H. Hallfredsson, Torstein Pedersen
1998

Feeding of cod (Gadus morhua) and saithe (Pollachius virens) on the banks and in the coastal waters of Northern Norway - with respect to competition, predation and consumption

Hallfredsson, Elvar H.
1989

Undersøkelse av en røye-innsjø og en blandet røye- og ørret- innsjø på Nord-Island, Høfdavatn og Ølvesvatn, etter selektivt fiske i noen år

Hallfredsson, Elvar H.
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