Fabian Zimmermann

Researcher

Telephone: 47771829

Department: Bentiske ressurser

My research focuses on the study of population dynamics in marine shellfish and fish, and their assessment to provide fisheries advice. I am particularly interested in the ecological and environmental processes that drive changes in population size and structure and the consequences of these dynamics for stock assessment estimates and fisheries management. In my current projects, I work on a better understanding and predictability of recruitment variability, explore the impact of unaccounted fishing mortality and variation in natural mortality on stock estimates and uncertainty, and investigate optimal harvest regulations for stocks with cyclical dynamics. As researcher in the benthic resources unit at IMR I am responsible for the stocks of edible crab and common whelk, and I am involved in the assessment of Northern shrimp in the Barents Sea and along the Norwegian coast, as well as coastal nephrops and Iceland scallops.

Curriculum Vitae
Publications
Net reports
News

Curriculum Vitae

Academic degrees

2011

PhD in Biology at the Department of Biology, University of Bergen (UiB), Norway
Thesis: “The value of size – bioeconomic consequences of size-dependent pricing and fishing-induced evolution”.

2007

MSc in Biology at the Zoological Institute, University of Bern, Switzerland

Thesis: “Impact of alternative splicing on recent human genome evolution

Employment

2019 – Present	Researcher (1110) in the Benthic Resources Unit at the IMR, Norway
2015 – 2019	Postdoctoral position in the Pelagic Fish Unit at the IMR, Norway.
2017 – 2018	Research associate at the University of California Santa Cruz (UCSC), USA.
2013 – 2015	Postdoctoral position in the Evolutionary ecology group at UiB, Norway.
2012 – 2013	Postdoctoral position in the Ecology and Models applied to Fisheries (EMH) unit at IFREMER Nantes, France.
2011 – 2011	Researcher position at the UiB, Norway.
2008 – 2011	Research fellow / PhD student at the UiB, Norway.

Publications

Academic articles

2024

Pelagic and demersal fish population rebuilding in response to fisheries-induced evolution in exploited China Seas

Guankui Liu, Peng Sun, Jin Gao, Fabian Zimmermann, Yongjun Tian, Mikko Petteri Heino

Ecological Indicators

2024

Incorporation of observation uncertainty in stock assessment using spatio-temporal modeling of catch-at-length and age-at-length survey data

Olav Nikolai Risdal Breivik, Fabian Zimmermann, Edda Johannesen, Kotaro Ono, Johanna Jennifer Elisabeth Fall, Daniel Howell, Anders Nielsen

ICES Journal of Marine Science

2024

Fine-scale diet data reveal spatial variation in predator–prey interactions in Norwegian fjords

Jessica Tengvall, Guldborg Søvik, Katja Susanna Enberg, Ulf Ove Lindstrøm, Mette Strand, Torstein Pedersen, Hans Kristian Strand, Fabian Zimmermann

Journal of Applied Ecology

2024

Fine-scale diet data reveal spatial variation in predator–prey interactions in Norwegian fjords

Jessica Tengvall, Guldborg Søvik, Katja Enberg, Ulf Ove Lindstrøm, Mette Strand, Torstein Pedersen, Hans Kristian Strand, Fabian Zimmermann

Journal of Applied Ecology 61 p. 687-699

2023

Statistical modelling of voluntary feed intake in individual Atlantic salmon (Salmo salar L.)

Ana S. Gomes, Fabian Zimmermann, Ernst Morten Hevrøy, Marcus Aadne Lowther Søyland, Tom Johnny Hansen, Tom Ole Nilsen, Ivar Rønnestad

Frontiers in Marine Science 10

2023

Statistical modelling of voluntary feed intake in individual Atlantic salmon (Salmo salar L.)

Ana S. Gomes, Fabian Zimmermann, Ernst Morten Hevrøy, Marcus Søyland, Tom Johnny Hansen, Tom Ole Nilsen, Ivar Rønnestad

Frontiers in Marine Science 10

2023

The economics of reversing fisheries-induced evolution

Hanna Schenk, Fabian Zimmermann, Martin Quaas

Nature Sustainability

2023

Using the best of two worlds: A bio-economic stock assessment (BESA) method using catch and price data

Kira Lancker, Rudi Voss, Fabian Zimmermann, Martin Quaas

Fish and Fisheries

2023

Spatially explicit stock assessment uncovers sequential depletion of northern shrimp stock components in the North Sea

M Cardinale, Fabian Zimmermann, Guldborg Søvik, Christopher A. Griffiths, Mikaela Bergenius Nord, Henning Winker

ICES Journal of Marine Science 80 p. 1868-1880

2023

Statistical modelling of voluntary feed intake in individual Atlantic salmon (Salmo salar L.)

Ana Cristina Da Silva Gomes, Fabian Zimmermann, Ernst Morten Hevrøy, Marcus Søyland, Tom Johnny Hansen, Tom Ole Nilsen, Ivar Rønnestad

Frontiers in Marine Science 10

2023

Statistical modelling of voluntary feed intake in individual Atlantic salmon (Salmo salar L.)

Ana Cristina Da Silva Gomes, Fabian Zimmermann, Ernst Morten Hevrøy, Marcus Søyland, Tom Hansen, Tom Ole Nilsen, Ivar Rønnestad

Frontiers in Marine Science 10

2023

Fine-scale spatial variation of northern shrimp and Atlantic cod across three Norwegian fjord systems and implications for management

Fabian Zimmermann, Jessica Tengvall, Hans Kristian Strand, Kjell Harald Nedreaas, Trude Hauge Thangstad, Berengere Husson, Guldborg Søvik

Estuarine, Coastal and Shelf Science 292

2022

#OceanOptimism: Balancing the Narrative About the Future of the Ocean

Angel Borja, Michael Elliott, Oihane Basurko, Alex Fernández Muerza, Fiorenza Micheli, Fabian Zimmermann, Nancy Knowlton

Frontiers in Marine Science 9

2022

Working Group on the Assessment of Demersal Stocks in the North Sea and Skagerrak (WGNSSK)

Anja Helene Alvestad, Jurgen Batsleer, Alan Baudron, Casper W. Berg, Chun Chen, Harriet S. Cole, José De Oliveira, Come Denechaud, Elise Eidset, Raphael Girardin, Ghassen Halouani, Holger Haslob, Alexander Holdgate, Nis Sand Jacobsen, Alexander Kempf, Alexandros Kokkalis, Tiago Veiga-Malta, Carlos Mesquita, Tanja Miethe, Iago Mosqueira, Nikolai Nawri, Coby Needle, Anders Nielsen, J. Rasmus Nielsen, Alessandro Orio, Yves Reecht, Jon Egil Skjæraasen, Guldborg Søvik, Andreas Sundelöf, Klaas Sys, Marc Taylor, Mikael van Deurs, Lies Vansteenbrugge, Francesca Vitale, Kathrin Vossen, Nicola Walker, Fabian Zimmermann

ICES Scientific Reports 4

2022

Technological creep masks continued decline in a lobster (Homarus gammarus) fishery over a century

Alf Ring Kleiven, Sigurd Heiberg Espeland, Stian Stiansen, Kotaro Ono, Fabian Zimmermann, Esben Moland Olsen

Scientific Reports 12

2022

Environmental drivers of herring growth and how the perception shifts with time series length

Marion Claireaux, Fabian Zimmermann, Bruno Ernande, Mikko Petteri Heino, Katja Enberg

Canadian Journal of Fisheries and Aquatic Sciences 79 p. 1282-1290

2022

Inclusion of recreational fishing in data-limited stocks: a case study on Norway lobster (Nephrops norvegicus) in Norway

Fabian Zimmermann, Alf Ring Kleiven, Merete Vik Ottesen, Guldborg Søvik

Canadian Journal of Fisheries and Aquatic Sciences 79 p. 969-978

2022

ICES 2022 - Working Group on the Assessment of Demersal Stocks in the North Sea and Skagerrak (WGNSSK)

ICES Scientific Reports 4

2021

Highly mixed impacts of near-future climate change on stock productivity proxies in the North East Atlantic

Olav Sigurd Kjesbu, Svein Sundby, Anne Britt Sandø, Maud Alix, Solfrid Sætre Hjøllo, Maik Tiedemann, Mette Skern-Mauritzen, Claudia Junge, Maria Fossheim, Cecilie Broms, Guldborg Søvik, Fabian Zimmermann, Kjell Harald Nedreaas, Elena Eriksen, Hannes Höffle, Ann Merete Hjelset, Cecilie Kvamme, Yves Reecht, Halvor Knutsen, Asgeir Aglen, Ole Thomas Albert, Erik Berg, Bjarte Bogstad, Caroline Durif, Kim Aleksander Tallaksen Halvorsen, Åge Sigurd Høines, Carsten Hvingel, Edda Johannesen, Espen Johnsen, Even Moland, Mari Skuggedal Myksvoll, Leif Nøttestad, Erik Joel Steinar Olsen, Georg Skaret, Jon Egil Skjæraasen, Aril Slotte, Arved Staby, Erling Kåre Stenevik, Jan Erik Stiansen, Martina H. Stiasny, Jan Henry Sundet, Frode Bendiksen Vikebø, Geir Huse

Fish and Fisheries 23 p. 601-615

2021

The role of cholecystokinin and peptide YY in feed intake in Atlantic halibut (Hippoglossus hippoglossus) larvae

Ana Cristina Da Silva Gomes, Endre Lygre, Torstein Harboe, Fabian Zimmermann, Ann-Elise Olderbakk Jordal, Kristin Hamre, Ivar Rønnestad

Neuropeptides 91

2021

Pre-catch and discard mortality in Northeast Atlantic herring and mackerel fisheries: Consequences for stock estimates and advice

Maria Tenningen, Fabian Zimmermann, Katja Enberg

ICES Journal of Marine Science 78 p. 2603-2614

2021

Considerations for management strategy evaluation for small pelagic fishes

Margaret Siple, Laura Koehn, Kelli F Johnson, André E. Punt, T. Mariella Canales, Piera Carpi, Carryn L. de Moor, José A.A. De Oliveira, Jin Gao, Nis S. Jacobsen, Mimi Elizabeth Lam, Roberto Licandeo, Martin Lindgren, Shuyang Ma, Gudmundur Jóhann Óskarsson, Sonia Sanchez-Maroño, Szymon Smolinski, Szymon Surma, Yongjun Tian, Desiree Tommasi, Mariano Gutierrez T., Verena Trenkel, Stephani Zador, Fabian Zimmermann

Fish and Fisheries

2021

Density-independent mortality at early life stages increases the probability of overlooking an underlying stock-recruitment relationship

Fabian Zimmermann, Katja Enberg, Marc Mangel

ICES Journal of Marine Science

2019

Common trends in recruitment dynamics of north-east Atlantic fish stocks and their links to environment, ecology and management

Fabian Zimmermann, Marion Claireaux, Katja Enberg

Fish and Fisheries 20 p. 518-536

2019

Improved management is the main driver behind recovery of Northeast Atlantic fish stocks

Fabian Zimmermann, Karl-Michael Werner

Frontiers in Ecology and the Environment 17 p. 93-99

2018

Density regulation in Northeast Atlantic fish populations: Density dependence is stronger in recruitment than in somatic growth

Fabian Zimmermann, Daniel Ricard, Mikko Petteri Heino

Journal of Animal Ecology 87 p. 672-681

2018

Density regulation in Northeast Atlantic fish populations: density dependence is stronger in recruitment than in somatic growth

Fabian Zimmermann, Daniel Ricard, Mikko Heino

Journal of Animal Ecology

2017

Exploring conflicting management objectives in rebuilding of multi-stock fisheries

Fabian Zimmermann, Satoshi Yamazaki

Ocean and Coastal Management 138 p. 124-137

2017

Taking animal breeding into the wild: regulation of fishing gear can make fish stocks evolve higher productivity

Fabian Zimmermann, Christian Jørgensen

Marine Ecology Progress Series 563 p. 185-195

2016

Are negative intra-specific interactions important for recruitment dynamics? A case study of Atlantic fish stocks

Daniel Ricard, Fabian Zimmermann, Mikko Petteri Heino

Marine Ecology Progress Series 547 p. 211-217

2016

Can less be more? Effects of reduced frequency of surveys and stock assessments

Fabian Zimmermann, Katja Enberg

ICES Journal of Marine Science 74 p. 56-68

2015

Bioeconomic consequences of fishing-induced evolution: a model predicts limited impact on net present value

Fabian Zimmermann, Christian Jørgensen

Canadian Journal of Fisheries and Aquatic Sciences 72 p. 612-624,

2013

Is size-dependent pricing prevalent in fisheries? The case of Norwegian demersal and pelagic fisheries

Fabian Zimmermann, Mikko Petteri Heino

ICES Journal of Marine Science 70 p. 1389-1395

2011

Does size matter? A bioeconomic perspective on optimal harvesting when price is size-dependent

Fabian Zimmermann, Mikko Petteri Heino, Stein Ivar Steinshamn

Canadian Journal of Fisheries and Aquatic Sciences 68 p. 1651-1659

2011

Does size matter? A bioeconomic perspective on optimal harvesting when price is size-dependent

Fabian Zimmermann, Mikko Petteri Heino, Stein Ivar Steinshamn

Canadian Journal of Fisheries and Aquatic Sciences

2011

Optimal harvest feedback rule accounting for the fishing-up effect and size-dependent pricing

Fabian Zimmermann, Stein Ivar Steinshamn, Mikko Petteri Heino

Natural Resource Modeling 24 p. 365-382

Other journal contributions

2022

Corrigendum: #OceanOptimism: Balancing the narrative about the future of the ocean(Front. Mar. Sci., (2022), 9, (886027), 10.3389/fmars.2022.886027)

Angel Borja, Michael Elliott, Oihane C. Basurko, Alex Fernández Muerza, Fiorenza Micheli, Fabian Zimmermann, Nancy Knowlton

Frontiers in Marine Science 9

2020

Endringer i rekebestanden kan skyldes mange faktorer. Derfor kan man ikke generalisere om fangstutvikling

Eskil Dahl Olaussen, Guldborg Søvik, Carsten Hvingel, Fabian Zimmermann, Pål Arne Bjørn, Einar Magnus Nilssen, Maiken Bjørkan

Fiskeribladet

Scientific lectures

2024

Assessing Long-Term Effects of 50-Year Trawl Bans in Norwegian Fjord Ecosystems

Fabian Zimmermann, Jessica Tengvall, Ana S. Gomes, Guldborg Søvik

2024

Assessing Long-Term Effects of 50-Year Trawl Bans in Norwegian Fjord Ecosystems

Fabian Zimmermann, Jessica Tengvall, Ana Cristina Da Silva Gomes, Guldborg Søvik

2024

Estimating Unreported Recreational Landings of Lobster and Stock Assessment Impacts

Johanna Bjånes Marcussen, Fabian Zimmermann, Alf Ring Kleiven

2023

Environmental Drivers of Demersal Fish and Crustacean Community Structure in West Norwegian Fjords

Sigrid Kjelstad, Guldborg Søvik, Fabian Zimmermann, Anne Gro Vea Salvanes, Natalya Gallo

2023

Spatiotemporal cross-validation of three survey methods for improved abundance indices of red king crab (Paralithodes camtschaticus)

Johanna Bjånes Marcussen, Ann Merete Hjelset, Fabian Zimmermann, Guldborg Søvik, Ane Timenes Laugen, Carsten Hvingel

2023

Spatiotemporal cross-validation of three survey methods for improved abundance indices of red king crab (Paralithodes camtschaticus)

Johanna Bjånes Marcussen, Ann Merete Hjelset, Hanna Ellerine Helle Danielsen, Carsten Hvingel, Guldborg Søvik, Ane Timenes Laugen, Fabian Zimmermann

2023

Survey time series integration: comparing video observations of snow crab (Chionoecetes opilio) in the Barents Sea with demersal trawl and pot data

Georgina Vickery, Ann Merete Hjelset, Mikko Petteri Heino, Fabian Zimmermann

2019

The increasing recreational trap fishery for Norway lobster (Nephrops norvegicus) along the southwestern coast of Norway – insights from a baseline study

Fabian Zimmermann, Alf Ring Kleiven, Guldborg Søvik

2019

Fishing-induced evolution with economic implications

Hanna Schenk, Fabian Zimmermann

2019

No-take, no gain? A case study from no-take zones in Norwegian fjords

Zimmermann, Fabian

2019

Effects of no-take zones on the dynamics of Northern shrimp (Pandalus borealis) – a case study from fjords in Northern Norway

Fabian Zimmermann, Trude Hauge Thangstad, Kjell Harald Nedreaas, Hans Kristian Strand, Guldborg Søvik

2017

Drivers of recruitment dynamics in northeast Atlantic pelagic fish stocks

Fabian Zimmermann, Daniel Ricard, Mikko Petteri Heino, Katja Enberg

2017

Taking animal breeding into the wild: the complex interplay of evolutionary dynamics, size selectivity and economics

Fabian Zimmermann, Christian Jørgensen

2016

Can less be more? Effects of reduced frequency of surveys and stock assessments

Fabian Zimmermann, Katja Enberg

Poster

2017

Recruitment dynamics in northeast Atlantic fish stocks: synchrony and shared patterns

Fabian Zimmermann, Marion Claireaux, Katja Enberg

Reports and dissertations

2024

Assessment report for northern shrimp (Pandalus borealis) in the Barents Sea (ICES Subareas 1 and 2)

Fabian Zimmermann, Hanna Ellerine Helle Danielsen, Johanna Bjånes Marcussen, John Tyler Trochta, Georgina Vickery, Siri Aaserud Olsen, Erik Berg, Aleksei Stesko, sergei Bakanev

IMR/PINRO Joint Report Series

2024

Kongekrabbe i norsk sone - Status og rådgivning for 2025

Ann Merete Hjelset, Hanna Ellerine Helle Danielsen, Maria Jenssen, Erik Berg, Carsten Hvingel, Fabian Zimmermann

Rapport fra havforskningen

2024

Råd om fiske av snøkrabbe på norsk sokkel i Barentshavet 2025

Ann Merete Hjelset, Fabian Zimmermann

Rapport fra havforskningen

2024

Råd om fiske av kongekrabbe i norsk sone i 2025

Ann Merete Hjelset, Fabian Zimmermann

Rapport fra havforskningen

2024

Shellfish survey Vestlandet 2023 — Survey 2023005013

Johanna Bjånes Marcussen, Guldborg Søvik, Siri Aaserud Olsen, Fabian Zimmermann, Olve Haugan

Toktrapport

2024

Snøkrabbe på norsk sokkel i Barentshavet - Status og rådgivning for 2025

Ann Merete Hjelset, Hanna Ellerine Helle Danielsen, Maria Jenssen, Odd Børre Humborstad, Neil Anders, Jostein Saltskår, Erik Berg, Fabian Zimmermann

Rapport fra havforskningen

2024

Revision of the Norwegian-Russian Barents Sea Ecosystem Survey (BESS) - The current status and revision of the Norwegian sector of the BESS survey

Elena Eriksen, Geir Odd Johansen, Gro Ingleid van der Meeren, Herdis Langøy Mørk, Stine Karlson, Espen Bagøien, Miguel Bao, Erik Berg, Bjarte Bogstad, Stepan Boitsov, Paolo Cipriani, Padmini Dalpadado, Hanna Ellerine Helle Danielsen, Lucilla Giulietti, Elvar Halldor Hallfredsson, Hilde Elise Heldal, Ann Merete Hjelset, Arne Johannes Holmin, Hannes Höffle, Edda Johannesen, Lis Lindal Jørgensen, Arne Levsen, Georg Skaret, Hiroko Kato Solvang, Julia Endresen Storesund, Espen Strand, Ida Vee, Tone Vollen, Rupert Wienerroither, Kristin Windsland, Fabian Zimmermann, Nils Inge Øien

Rapport fra havforskningen

2024

Kveite (Hippoglossus hippoglossus) i Norsk økonomisk sone (ICES-områder 1-4)

Erik Berg, Mikko Vihtakari, Fabian Zimmermann

Rapport fra havforskningen

2024

Bestandsvurdering av kveite (Hippoglossus hippoglossus) i Norsk økonomisk sone (ICES-områder 1-4) i 2024

Fabian Zimmermann, Erik Berg, Torfinn Erling Larsen, Mikko Vihtakari

Rapport fra havforskningen

2024

Management strategy evaluation for northern shrimp in the Barents Sea (ICES subareas 1 and 2)

John Tyler Trochta, Aleksei Stesko, Ragni Olssøn, Hanna Ellerine Helle Danielsen, Maria Jenssen, Fabian Zimmermann

IMR/PINRO Joint Report Series

2024

Survey report (Part 2) from the joint Norwegian/Russian Ecosystem Survey in the Barents Sea and the adjacent waters August-October 2023 — Marine environment, Mesozooplankton, Commercial Demersal Fish, Fish Biodiversity, Commercial Shellfish, Benthic Invertebrate Community, Marine Mammals and Seabirds

Dmitri Prozorkevich, Elena Eriksen, Stine Karlson, Aleksander Trofimov, Randi Brunvær Ingvaldsen, Bjørn Einar Grøsvik, Tatiana Prokhorova, Roman Klepikovskiy, Espen Bagøien, Edda Johannesen, Bjarte Bogstad, Magnus Aune Wiedmann, Pavel Krivosheya, Irina Prokopchuk, Kristin Windsland, Alexey Russkikh, Rupert Wienerroither, Anatoly Filin, Fabian Zimmermann, Andrej Dolgov, Ann Merete Hjelset, Hanna Ellerine Helle Danielsen, sergei Bakanev, Aleksei Stesko, Lis Lindal Jørgensen, Daria Blinova, Frederike Boehm, Nils Inge Øien, Natalia Strelkova, Alexander Kudrayashova, Per Fauchald, Victoria Marja Sofia Ollus, Jonathan Ford, Gary Elton, Gro Ingleid van der Meeren, Dmitry Prozorkevich

IMR/PINRO Joint Report Series

2024

Krabbespredning i nord - Toktrapport 2023200030

Johanna Bjånes Marcussen, Snorre Bakke, Siri Aaserud Olsen, Jofrid Skardhamar, Fabian Zimmermann

Toktrapport

2024

Toktrapport fra reketoktet i Skagerrak og Norskerenna 2021 - Reketoktet i Skagerrak og Norskerenna 2021

Guldborg Søvik, Katrine Wilhelmsen Melaa, Trude Hauge Thangstad, Fabian Zimmermann

Toktrapport

2023

Survey of Iceland scallop beds north of Svalbard - Survey number 2022839

Fabian Zimmermann, Mimi Maria Stokkeland, Martin Wiech, Maria Jenssen, Ragni Olssøn, Hanna Ellerine Helle Danielsen, Jan Henry Sundet

Toktrapport

2023

Barents Sea Shrimp - stock assessment report 2023

Carsten Hvingel, Fabian Zimmermann

IMR/PINRO Joint Report Series

2023

Advice on fishing opportunities for Barents Sea shrimp in 2024

Carsten Hvingel, Fabian Zimmermann

IMR/PINRO Joint Report Series

2023

Working Group on the Biology and Life History of Crabs (WGCRAB; outputs from 2020–2022 meetings)

Carlos Mesquita, Ann-Lisbeth Agnalt, Francis Binney, Samantha Blampied, Paul Chambers, Matthew Coleman, Hanna Ellerine Helle Danielsen, Alisa Ellis, Jack Emmerson, Elena Guijarro, Ann Merete Hjelset, Natalie Hold, Carsten Hvingel, Idongesit Ikpewe, Alf Ring Kleiven, Alexandros Kokkalis, Johanna-Luise Kozák, Martial Laurans, Johanna Bjånes Marcussen, Guillermo Martin, Carrie McMinn, Alec Moore, Darrell Mullowney, Emily Roebuck, Samantha Stott, Jan Henry Sundet, Oliver Tully, Martin Wiech, Fabian Zimmermann

2023

Snøkrabbe på norsk sokkel i Barentshavet - Status og rådgivning for 2024

Ann Merete Hjelset, Carsten Hvingel, Hanna Ellerine Helle Danielsen, Maria Jenssen, Fabian Zimmermann, Odd Børre Humborstad, Terje Jørgensen, Svein Løkkeborg, Neil Anders

Rapport fra havforskningen

2023

Råd om fiske av snøkrabbe i 2024

Ann Merete Hjelset, Carsten Hvingel, Hanna Ellerine Helle Danielsen, Maria Jenssen, Fabian Zimmermann, Odd Børre Humborstad, Terje Jørgensen, Svein Løkkeborg, Neil Anders

Rapport fra havforskningen

2023

Prøvefiske etter dypvannsreke i ytre Porsangerfjorden - Resultater fra 2021–2023

Guldborg Søvik, Fabian Zimmermann, Siri Aaserud Olsen, Trude Hauge Thangstad, Hans Kristian Strand, Kjell Harald Nedreaas

Rapport fra havforskningen

2023

Bestandsvurdering av kongekrabbe 2023 og råd for 2024

Carsten Hvingel, Ann Merete Hjelset, Mona Maria Fuhrmann, Maria Jenssen, Fabian Zimmermann

Rapport fra havforskningen

2023

Råd om fiske på kongekrabbe i 2024

Carsten Hvingel, Ann Merete Hjelset, Mona Maria Fuhrmann, Maria Jenssen, Fabian Zimmermann

Rapport fra havforskningen

2023

Toktrapport fra økosystemtokt i Vestlandsfjordene — Hydrografi, vannkjemi, reker, krill, bunnfisk, tobis og perifylla

Guldborg Søvik, Tone Falkenhaug, Fabian Zimmermann, Natalya Gallo, Kjell Harald Nedreaas, Jean-Baptiste Danre, Terje Hovland, Trude Hauge Thangstad, Siri Aaserud Olsen, Espen Johnsen, Lars Asplin

2023

Teinefiske etter dypvannsreke (Pandalus borealis) i Norge - Kommersielle landinger og sammenligning av teinefiske i tre områder langs kysten

Kristina Haugland, Guldborg Søvik, Fabian Zimmermann, Hans Kristian Strand

2023

Advice on fishing opportunities for Barents Sea shrimp in 2023

Carsten Hvingel, Fabian Zimmermann

2023

Barents Sea Shrimp - stock assessment report 2022/23

Carsten Hvingel, Fabian Zimmermann

2022

Strandkrabber Carcinus maenas og strandkrabbefiskeri

Gro Ingleid van der Meeren, Fabian Zimmermann, Anne Christine Utne-Palm, Martin Wiech, Kim Aleksander Tallaksen Halvorsen, Alf Ring Kleiven, Portia Joy Nillos Kleiven, Terje Jørgensen, Johanna Bjånes Marcussen

2022

Historic landings of northern shrimp (Pandalus borealis) in Norway - Data per county for 1908-2021

Katrine Wilhelmsen Melaa, Fabian Zimmermann, Guldborg Søvik, Trude Hauge Thangstad

2022

Status: Taskekrabbe (Cancer pagurus) i Norge - Tilstand, trender og bestandsvurderingsmetoder

Johanna Bjånes Marcussen, Guldborg Søvik, Maria Jenssen, Fabian Zimmermann

2022

Taskekrabbetokt: Molde – Frøya 2021 — Havforskningsinstituttets første taskekrabbetokt

Johanna Bjånes Marcussen, Maria Jenssen, Kjell Harald Nedreaas, Guldborg Søvik, Fabian Zimmermann

2021

Working Group on the Assessment of Demersal Stocks in the North Sea and Skagerrak (WGNSSK)

Anja Helene Alvestad, Jurgen Batsleer, Alan Baudron, Katinka Bleeker, Aaron Brazier, Chun Chen, José A.A. De Oliveira, Raphael Girardin, Ghassen Halouani, Holger Haslob, Alexander Kempf, Alexandros Kokkalis, Carlos Mesquita, Tanja Miethe, Iago Mosqueira, Nikolai Nawri, Coby Needle, Anders Nielsen, J. Rasmus Nielsen, Alessandro Orio, Alfonso Perez-Rodriguez, Yves Reecht, Jon Egil Skjæraasen, Guldborg Søvik, Andreas Sundelöf, Klaas Sys, Marc Taylor, Sebastian Uhlmann, Mats Ulmestrand, Mikael Van Deurs, Lies Vansteenbrugge, Tiago Veiga-Malta, Francesca Vitale, Nicola Walker, Fabian Zimmermann

ICES Scientific Reports 3

2021

ICES. 2021. Working Group on the Assessment of Demersal Stocks in the North Sea and Skagerrak (WGNSSK)

2021

Working group on the biology and life history of crabs (WGCRAB; outputs from 2019 meeting)

Ann-Lisbeth Agnalt, Ann Merete Hjelset, AnnDorte Burmeister, Carlos Mesquita, Darrell Mulloway, Fabian Zimmermann, Jack Emmerson, Jan Henry Sundet, M Laurans, Martin Wiech, Matthew Coleman, Paul Chambers, Rosslyn McIntyre, Samantha Stott, Sara Clarke, Snorre Bakke

2021

Aktiv forvaltning av marine ressurser - Frøya og Hitra - Sluttrapport

Alf Ring Kleiven, Sigurd Heiberg Espeland, Guldborg Søvik, Jon Albretsen, Portia Joy Nillos Kleiven, Fabian Zimmermann, Ellen Sofie Grefsrud, Kim Aleksander Tallaksen Halvorsen, Ola Vie

2020

Essay om fiskerier i Porsangerfjorden før og nå - et resultat av møter mellom fjordbrukere og forskere

Hans Kristian Strand, Jan Daleng, Tore Eliassen, Thor Follesø, Harald Gjøsæter, Hans Oliver Hansen, Thomas Hansen, Hartvig Johansen, Hedly Josefsen, Dagny Larsen, Terje Martinsen, Kjell Harald Nedreaas, Torstein Pedersen, Mette Skern-Mauritzen, Mette Strand, Guldborg Søvik, Fabian Zimmermann

2020

Kartlegging av fjordøkosystemene i Tana- og Porsangerfjorden - Råd og kunnskapsbidrag fra Havforskningsinstituttet i forbindelse med vurdering av en eventuell åpning av direktefiske etter reker med bunntrål i Tana- og Porsangerfjorden

Guldborg Søvik, Kjell Harald Nedreaas, Fabian Zimmermann, Berengere Husson, Hans Kristian Strand, Lis Lindal Jørgensen, Mette Strand, Trude Hauge Thangstad, Agneta Hansen, Thea Båtevik, Jon Albretsen, Arved Staby

2020

Bestandskartlegging av haneskjell (Clamys islandica) ved Bjørnøya

Jan Henry Sundet, Fabian Zimmermann

2020

Kunnskapsgrunnlaget for taskekrabbe langs norskekysten

Fabian Zimmermann, Maria Jenssen, Kjell Harald Nedreaas, Guldborg Søvik, Ann Merete Hjelset, Snorre Bakke

2019

Kunnskapsstatus rekefelt langs norskekysten - Bestilling fra Fiskeridirektoratet

Fabian Zimmermann, Guldborg Søvik, Trude Hauge Thangstad

2011