Theoretical Ecology Group

 
UNIVERSITETET I BERGEN
Institutt for biologi
 
Home Research People Publications MSc Projects About

Evolution in Fisheries Science

Industrial fishing is the main source of mortality for many harvested fish stocks, and there is increasing concern that this will cause evolutionary changes in the fish species themselves. We use models as a virtual laboratory to study fish evolution. With these, we assess potential consequences of fishing or environmental change, and identify management strategies that can reduce negative consequences.

The Basis: Physiological and Ecological Mechanisms

By focusing on environmental, physiological, and ecological mechanisms, we begin by modelling selection pressures that have shaped fish species to be the way they are today. By varying the external pressures, such as fishing, we simulate fish evolution to help interpret observed patterns, identify new patterns one might need to look out for, assess ecological and economical consequences, and identify management strategies that may minimize or reduce negative consequences.

Evolutionary Fisheries Management

A central question is how fisheries management should respond. Are the expected changes of such magnitude and rate that fishing regimes need to be changed to minimize the impact?

Collaboration with Evofish

For this research theme we benefit from the proximity and close relationship with Professor Mikko Heino and his research group in Evolutionary Fisheries Ecology.

Read more in our papers

Dunlop ES, Enberg K, Jørgensen C, Heino M. 2009.
Toward Darwinian fisheries management
Evolutionary Applications. 2: 245-259. [ doi:10.1111/j.1752-4571.2009.00087.x ] [ open access ] [ pdf ]
Enberg K, Jørgensen C, Dunlop ES, Heino M, Dieckmann U. 2009.
Implications of fisheries-induced evolution for stock rebuilding and recovery
Evolutionary Applications. 2: 394-414. [ doi:10.1111/j.1752-4571.2009.00077.x ] [ open access ] [ pdf ]
Enberg K, Jørgensen C, Dunlop ES, Varpe Ø, Boukal DS, Baulier L, Eliassen S, Heino M. 2012.
Fishing-induced evolution of growth: concepts, mechanisms, and the empirical evidence
Marine Ecology. 33: 1-25. [ doi:10.1111/j.1439-0485.2011.00460.x ] [ open access ] [ pdf ]
Enberg K, Jørgensen C, Mangel M. 2010.
Fishing-induced evolution and changing reproductive ecology of fish: the evolution of steepness
Canadian Journal of Fisheries and Aquatic Sciences. 67: 1708-1719. [ doi:10.1139/F10-090 ] [ pdf ]
Jørgensen C, Dunlop ES, Opdal AF, Fiksen Ø. 2008.
The evolution of spawning migrations: state dependence and fishing-induced changes
Ecology. 89: 3436-3448. [ doi:10.1890/07-1469.1 ] [ pdf ]
Jørgensen C, Ernande B, Fiksen Ø. 2009.
Size-selective fishing gear and life history evolution in the Northeast Arctic cod
Evolutionary Applications. 2: 356-370. [ doi:10.1111/j.1752-4571.2009.00075.x ] [ pdf ]
Jørgensen C, Enberg K, Dunlop ES, Arlinghaus R, Boukal DS, Brander K, Ernande B, Gårdmark A, Johnston F, Matsumura S, Pardoe H, Raab K, Silva A, Vainikka A, Dieckmann U, Heino M, Rijnsdorp AD. 2007.
Managing evolving fish stocks
Science. 318: 1247-1248. [ doi:10.1126/science.1148089 ] [ pdf ]
Jørgensen C, Fiksen Ø. 2010.
Modelling fishing-induced adaptations and consequences for natural mortality
Canadian Journal of Fisheries and Aquatic Sciences. 67: 1086-1097. [ doi:10.1139/F10-049 ] [ open access ] [ pdf ] [ online appendix ]

 

 
Professor
Dag L. Aksnes
Researcher
Sergey Budaev
PhD Student
Ryan J. Dillon
Associate Professor
Sigrunn Eliassen
PhD student
Johanna Fall
Group Leader, Professor
Øyvind Fiksen
PhD Student
Nadia Fouzai
Professor
Jarl Giske
PhD Student
Camilla Håkonsrud Jensen
PhD Student
Judy Jinn
Associate Professor
Christian Jørgensen
PhD Student
Tom J. Langbehn
Postdoc
Christian Lindemann
PhD Student
Gabriella Ljungström
Adjunct Professor
Marc Mangel
Postdoc
Adèle Mennerat
Postdoc
Anders F. Opdal
PhD student
Nicolas J. I. Rodriguez
PhD Student
Jacqueline Weidner
PhD Student
Johanna Myrseth Aarflot

Alumni