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Fabian Zimmermann

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Forsker
Telefon: 47771829
Avdeling: Bentiske ressurser og prosesser

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

Faglige foredrag

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

Vitenskapelige artikler (NVI)

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

Rapporter og avhandlinger

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

Poster

2017

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

Fabian Zimmermann, Marion Claireaux, Katja Enberg

Kapitler og bøker

2020

Sustainable Fisheries: Models and Management

Fabian Zimmermann, Katja Enberg
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