Gå til hovedinnhold
Havforskningsinstituttet HI Åpne/Lukke hovedmeny
English <- Tilbake

Fabian Zimmermann

Fabian og kongekrabbe
Forsker
Telefon: 47771829
Avdeling: 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. My current work includes the assessment of data-limited shellfish stocks, notably brown crab, Iceland scallops, Nephrops and Northern shrimp. Furthermore, I'm involved in projects to explore the impact of unaccounted fishing mortality and variation in natural mortality on stock estimates and uncertainty. As researcher in the benthic resources unit at IMR, I’m responsible for the Norwegian stocks of brown crab and common whelk. 

Arbeidsområde

Arbeidsområde

Arbeider med: Skalldyrressurser (bestandsdynamikk, overvåking og forvaltning)

Forskningsgruppe: Bentiske ressurser og prosesser

Curriculum Vitae

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 at UiB, Norway.

2012 – 2013

Postdoctoral position at IFREMER Nantes, France.

2011 – 2011

Researcher position at the UiB, Norway.

2008 – 2011

PhD student at the UiB, Norway.

 

  
Publikasjoner

Publikasjoner

Vitenskapelige artikler (NVI)

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)

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
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

Annet tidsskriftbidrag

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

Faglige foredrag

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

Rapporter og avhandlinger

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)

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
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

The value of size – bioeconomic consequences of size-dependent pricing and fishing-induced evolution

Zimmermann, Fabian
Nettrapporter
Nyheter
Er denne profilen din? Rediger denne profilen (logg inn)

Sidepanel