Fabian Zimmermann

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
Curriculum Vitae
Publikasjoner
Nettrapporter
Nyheter

Arbeidsområde

Arbeider med: Skalldyrressurser (bestandsdynamikk, overvåking og forvaltning)

Forskningsgruppe: Bentiske ressurser og prosesser

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

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

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

Rapporter og avhandlinger

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

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

Nettrapporter

Flere rapporter

Nyheter

(04.01.2023) Har undersøkt taskekrabbe langs hele kysten
(11.10.2022) Hvorfor forsvinner rekene i Sør-Norge?
(25.08.2022) Slik har rekefisket utvikla seg
(22.04.2022) Teinefiske dominerer blant sjøkrepsfiskere
(23.02.2022) Sild vokser mindre i varmere hav
(08.09.2021) Skal få bedre oversikt over «vanlig» krabbe
(01.09.2021) Fleire hundre tusen tonn sild og makrell går truleg til spille i fiskeriet
(18.09.2020) Derfor er krabben best om høsten
(02.09.2020) - For enkelt om fangstutvikling i rekebestander
(20.02.2020) Dette vet vi om krabbebestanden

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Fabian Zimmermann

Arbeidsområde

Curriculum Vitae

Academic degrees

Employment

Publikasjoner

Faglige foredrag

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

Fishing-induced evolution with economic implications

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

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

Drivers of recruitment dynamics in northeast Atlantic pelagic fish stocks

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

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

Vitenskapelige artikler (NVI)

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

Considerations for management strategy evaluation for small pelagic fishes

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

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

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

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

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

Exploring conflicting management objectives in rebuilding of multi-stock fisheries

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

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

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

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

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

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

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

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

Rapporter og avhandlinger

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

Aktiv forvaltning av marine ressurser - Frøya og Hitra - Sluttrapport

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

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

Bestandskartlegging av haneskjell (Clamys islandica) ved Bjørnøya

Kunnskapsgrunnlaget for taskekrabbe langs norskekysten

Kunnskapsstatus rekefelt langs norskekysten - Bestilling fra Fiskeridirektoratet

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

Poster

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

Kapitler og bøker

Sustainable Fisheries: Models and Management

Nettrapporter

Nettrapporter

Nyheter

Nyheter

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