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Olav S Kjesbu

Olav Kjesbu

Phone: 930 47 611

Works with

 

Present topics of study/activities:

• Recruitment biology: stock reproductive potential, climate effects
• Reproductive ecology
• Master and PhD student supervision


-Project leader: RECNOR (IMR) and ScaleClim (NFR)
 

Curriculum Vitae


Working Address: Institute of Marine Research, P.O. Box 1870, N-5817 Bergen
Phone: mobile: +47 93047611
Fax: + 47 55238555
E-mail: olav.kjesbu@imr.no

Educational qualifications
1988: Dr. scient., Institute of Fish Biology, University of Bergen (cod reproductive biology)
1982: Cand. scient., Institute of Fish Biology, University of Bergen (blue whiting reproductive biology)
1979-1982: University of Bergen, Faculty of Mathematics and Natural Sciences
1975-1978: University of Oslo, Faculty of Mathematics and Natural Sciences

Positions held

March 2017: Chief Scientist, IMR

May 2014-  March 2017: Director, Hjort Centre for Marine Ecosystem Dynamic(research cluster IMR, UiB, Nansen Center, and Uni Research, about 100 marine researchers)

September 2012 - September 2016: Adjunct professor, CEES, Univeristy of Oslo

May 2010 -  September 2014: Head of Research Group: ’Demersal Fish’, IMR (14 researchers/8 technicians: stock assessment/population biology/management advice on major gadoids stocks (cod, haddock and saithe) in the North Sea and Barents Sea 


2007-2010: Principal research scientist, IMR
2004-2007: Head of Research Group: ’Recruitment Biology and Behaviour’ (12 researchers/ scholarship holders), IMR
2001-2003: Research Program Leader: ‘Reproduction and Early Life History of Fish and Shellfish’ (about 20-30 mill. NOK/25 000 man hours per year), IMR (incl. also aquaculture-related research topics) 
1997-2000: Research Program Leader: ‘Reproduction and Recruitment’ (about 5-7 mill. NOK/8 000 - 10 000 man hours per year), IMR
1996: Principal scientist (1183), IMR
1995-2003: Group Leader ’IMR Marine Fish Reproduction Group’ (5 staff members)
1994: Senior scientist (1110), IMR
1988: Research scientist (1009), IMR 
1985-1988: Research scholarship holder, Norwegian Fisheries Research Council (NFRC) 
1984-1985: High-school teacher (mathematics/natural sciences), Voss, Norway

Guest scientist
2000: Strategic competence building grant (Research Council of Norway (NFR)): Southwest Fisheries Science Center, La Jolla, California, USA (visiting Research Director/professor John R. Hunter) (3 months)
1991/1992: International competence building scholarship (NFR): Fisheries Laboratory, Lowestoft, England (visiting Dr Michael Greer Walker and Mr Peter R. Witthames) (6 months).
1986 and 1987: Travel scholarships (NFR): The Fisheries Laboratory, Lowestoft, England (training in laboratory methods) (totally 2 months) (visiting Mr Peter R. Witthames)

External project management-

2017-2020: Project leader 'Scaling climate effects from individual physiology to population responses' (NFR: 268336).
2011- 2015 (April): Project leader Strategic Institute Program ‘Adaptive management of living marine resources by integrating different data sources and key ecological processes (ADMAR): A joint effort by IMR and CEES’ (NFR: 200497/I30, 2010-2015). Co-project leader: Professor Nils Chr. Stenseth, CEES, University of Oslo.
2006-2009: Project leader ‘Timing and determination of fecundity and skipped spawning: implications for stock-recruitment theory of determinate spawners’ (NFR: 173341/ S40)
2006-2009: Task leader ‘ECOFISH – Ecosystem dynamics and fish stocks’ (NFR: 17356/i30)
2003-2006: Task leader ‘ECOBE – Effects of North Atlantic climate variability on the Barents Sea ecosystem’ (NFR: 155930/700)
2003-2005: Project leader ’ICES 2004 Symposium on Gadoid Mariculture: Development and Future Challenges’ (NFR, IMR, NOAA (USA) and DFO (Canada)) 
2002-2005: Co-ordinator ‘Reproduction and stock evaluation for recovery’ (RASER) (EU Q5RS-2002-01825)
2002-2005: Project leader ‘Competence building and development of mariculture. A cooperation project between Centro Investigaciones Pesqueras, La Habana and Institute of Marine Research, Bergen, 2003-2005’ (NORAD (Norwegian Agency for Development Cooperation) and UD (Ministry of Foreign Affairs))
2001-2003: Project leader ‘Modern approaches to assess maturity and fecundity of warm- and cold-water fish and squids’ (NFR: 140267/120)
2000-2002: Project leader ‘Condition effects on maturation and realized fecundity of cod with application to stock level production dynamics’ (NFR 133836/122)
1999-2001: Task leader of ‘An operational model of the effects of stock structure and spatio-temporal factors on recruitment’ (STERIO) (EU FAIR-CT98-4122)
1997-2001: Task leader ’Reproduction of cod: effects of natural and anthropogenic environmental factors: competence building and method development at IMR’ (Strategic Institute Program) (NFR 11435/120)
1996-1997: Task leader ‘Recruitment processes in cod and haddock: developing new approaches’ (EU FAIR-CT95-0084).
1991-1993: Project leader ’Reproductive strategies of Northeast Arctic cod’ (NFRC: 3001-701.347)

Visiting guest scientists
20, funded by Large Scale Facility/Training and Mobility of Researchers Programme/EU; Japanese Science and Technology Agency; Japanese Government; COST Action FRESH; EU Erasmus Programme

Supervision of students
23 Master Students; 10 Ph.D students

Miscellaneous


2011: Selected by the University of Oslo as one out of four ‘Norwegian leading experts’ on arctic-related marine research to be represented in the mobile exhibition ‘The legacy of Fridtjof Nansen’ (in memory of his 150th birthday)  (Bergen, Berlin, St. Petersburg, Nuuk, Tromsø, Arkhangelsk, Oslo)

2016: Awarded a grant in the amount of 50 000 USD from the philanthrophic organization Annenberg Foundation, CA for charitable, scientific, literary or educational purposes.

 

PUBLICATIONS
Publications last five years (2012- 2017)

dos Santos Schmidt, T.C., Slotte, A., Kennedy, J., Sundby, S., Johannessen, A., Óskarsson, G.J., Kurita, Y., Stenseth, N.C., Kjesbu, O.S. 2017. Oogenesis and reproductive investment of Atlantic herring are functions of not only present but long-ago environmental influences as well. PNAS 114(10), e. 1700349114.

Sundby, S., Drinkwater, K.F. & Kjesbu, O.S. 2016. The North Atlantic spring-bloom system - where the changing climate meets the winter dark. Front. Mar. Sci. 3: Article 28 (12 pp.).

Kjesbu, O.S. 2016. Applied fish reproductive biology: contribution of individual reproductive potential to recruitment and fisheries management, pp. 321-366. In Fish Reproductive Biology. Implications for Assessment and Management. T. Jacobsen, M. J. Fogarty, B.A. Megrey and E. Moksness (Eds.). 2nd Edition. John Wiley & Sons, Chichester, UK.

Star, B., Hansen, M.H.S., Skage, M., Bradbury, I.R., Godiksen, J.A., Kjesbu, O.S. & Jentoft, S. 2016. Preferential amplification of repetitive DNA during whole genome sequencing library creation from historic samples. STAR 2(1): 36-45.

Skern-Mauritzen, M., Ottersen, G., Handegard, N.O., Huse, G., Dingsør, G.E., Stenseth, N.C. & Kjesbu, O.S. 2016. Ecosystem processes are rarely implemented in tactical fisheries management. Fish. Fish. 17: 165-175.

Saber, S., Macias, D., de Urbina, J.O. & Kjesbu, O.S. 2016. Contrasting batch fecundity estimates of albacore (Thunnus alalunga), an indeterminate spawner, by different laboratory techniques. Fish. Res. 176: 76-85.

Kjesbu, O.S., Marshall, C.T., Nash, R.D.M., Sundby, S., Rothschild, B.J. & Sinclair, M. 2016. Johan Hjort Symposium on Recruitment Dynamics and Stock Variability. Can. J. Fish. Aquat. Sci. 73: vii-xi.

Seivåg, M.L., Salvanes. A.G.V., Utne-Palm, A.C. & Kjesbu, O.S. 2016. Reproductive tactics of male beared goby (Sufflogobius bilbarbatus) in anoxic and hypoxic waters. J. Sea Res. 109: 29-41.

Hermansen, G.H., Hjort, N.L. & Kjesbu, O.S. 2016. Recent advances in statistical methodology applied to the Hjort liver index time series (1859-2012) and associated influential factors. Can. J. Fish. Aquat. Sci. 73: 279-295.

Skjæraasen, J.E., Korsbrekke, K., Nilsen, T., Fonn, M., Kjesbu, O.S., Dingsør, G.E. & Nash, R.D.M. 2015. Skipped spawning in the Northeast Arctic haddock Melanogrammus aeglefinus. Mar. Ecol. Prog. Ser. 526: 143-155.

Paasche, Ø., Österblom, H., Neuenfeldt, S., Bonsdorff, E., Brander, K., Conley, D.J., Durant, J.M., Eikeset, A.M., Goksøyr, A., Jonsson, S., Kjesbu, O.S., Kuparinen, A. & Stenseth, N.C. 2015. Connecting the Seas of Norden. Nature Clim. Chang. 5: 89-92.

Höffle, H., Solemdal, P., Korsbrekke, K., Johannessen, M., Bakkeplass, K. & Kjesbu, O.S. 2014. Variability of northeast Arctic cod (Gadus morhua) distribution on the main spawning grounds in relation to biophysical factors. ICES J. Mar. Sci. 71: 1317-1331.

Jung, K.-M., Folkvord, A., Kjesbu, O.S. & Sundby, S. 2014. Experimental parameterisation of principal physics in buoyancy variations of marine teleost eggs. PLOS ONE 9(8), e104089

Kjesbu, O.S., Bogstad, B., Devine, J.A., Gjøsæter, H., Howell, D., Ingvaldsen, R.B., Nash, R.D.M., Skjæraasen, J.E. 2014. Synergies between climate and management for Atlantic cod fisheries at high latitudes. PNAS 111(9): 3478-3483.
 

Kjesbu, O.S., Opdal, A.F, Korsbrekke, K., Devine, J.A., Skjæraasen, J.E. 2014. Making use of Johan Hjort’s unknown legacy: reconstruction of a 150-year coastal time series on Northeast Arctic cod (Gadus morhua) liver data reveals long-term trends in energy allocation patterns. ICES J. Mar. Sci. 71: 2053-2063.

Saber, S., Macías, D., de Urbina, J.O., Kjesbu, O.S. 2015. Stereological comparison of oocyte recruitment and batch fecundity estimates from paraffin and resin sections using spawning albacore (Thunnus alalunga) ovaries as a case study. J. Sea Res. 95: 226-238.
 

Skagen, D.W, Skern-Mauritzen, M., Dankel, D., Enberg, K., Kjesbu, O.S., Nash, R.D.M. 2013. A simulation framework for evaluating fisheries management decisions using environmental information. ICES. J. Mar. Sci. 70: 743-754.
 

Ndjaula, H.O.N., Krakstad, J.-O., Kjesbu, O.S. 2013. Reproductive biology of horse mackerel Trachurus capensis and Trachurus trecae in Namibia and Angola. African Journal of Marine Science 35: 141-150.
 

Witthames, P.R., Armstrong, M., Thorsen, A., Solemdal, P., Kjesbu, O.S. 2013. Contrasting development and delivery of realised fecundity in Atlantic cod (Gadus morhua) stocks from cold and warm waters. Fisheries Research 138: 128-138.
 

Skjæraasen, J.E., Korsbrekke, K., Kjesbu, O.S., Fonn, M., Nilsen, T. & Nash, R.D.M. 2013. Size-, energy- and stage-dependent fecundity and the occurrence of atresia in the Northeast Arctic haddock Melanogrammus aeglefinus. Fisheries Research 138: 120-127.
 

Silva,  F.F.G., Slotte, A., Johannessen, A., Kennedy, J. & Kjesbu, O.S. 2013. Strategies for partition between body growth and reproductive investment in migratory and stationary populations of spring-spawning Atlantic herring (Clupea harengus L.). Fisheries Research 138: 71-79.
 

Skjæraasen J.E., Nash, R.D.M., Korsbrekke, K., Fonn, M., Nilsen, T., Kennedy, J., Nedreaas, K.H., Thorsen, A., Witthames, P.R., Geffen, A.J., Høie, H. & Kjesbu, O.S. 2012. Frequent skipped spawning in the world’s largest cod population. PNAS 109: 8995-8999.

Jung, K.-M., Svardal, A.M., Eide, T., Thorsen, A., Kjesbu, O.S. 2012. Seasonal trends in adenylate nucleotide content in eggs of recruit and repeat spawning Atlantic cod (Gadus morhua L.) and implications for egg quality and buoyancy. Journal of Sea Research 73: 63-73.
 

Otterå, H., Agnalt, A. L., Thorsen, A., Kjesbu, O.S., Dahle, G., & Jørstad, K. 2012. Is spawning time of marine fish imprinted in the genes? ‒ A two-generation experiment on local Atlantic cod (Gadus morhua L.) populations from different geographical regions. ICES Journal of Marine Science 69: 1722-1728.
 

Uglem, I., Knutsen, Ø., Kjesbu, O.S., Hansen, Ø.J., Mork, J., Bjørn, P.A., Varne, R., Ellingsen, I., Dempster, T. 2012. Extent and ecological importance of escape through spawning in sea-cages for Atlantic cod. Aquaculture Environment Interactions 3: 33-49.
 

Witthames, P.R., Armstrong, M., Thorsen, A., Solemdal, P., Kjesbu, O.S. 2012. Contrasting development and delivery of realised fecundity in Atlantic cod (Gadus morhua) stocks from cold and warm waters. Fisheries Research 138: 128-138.
 

Jung, K. M., Folkvord, A., Kjesbu, O.S., Agnalt, A.L., Thorsen, A. & Sundby, S. 2012. Egg buoyancy variability in local populations of Atlantic cod (Gadus morhua). Marine Biology 159: 1969-1980.
 

Skjæraasen J.E., Nash, R.D.M., Korsbrekke, K., Fonn, M., Nilsen, T., Kennedy, J., Nedreaas, K.H., Thorsen, A., Witthames, P.R., Geffen, A.J., Høie, H. & Kjesbu, O.S. 2012. Frequent skipped spawning in the world’s largest cod population. PNAS 109: 8995-8999.
 

Skjæraasen, J.E., Korsbrekke, K., Kjesbu, O.S., Fonn, M., Nilsen, T. & Nash, R.D.M. 2012. Size-, energy- and stage-dependent fecundity and the occurrence of atresia in the Northeast Arctic haddock Melanogrammus aeglefinus. Fisheries Research 138: 120-127.
 

Silva,  F.F.G., Slotte, A., Johannessen, A., Kennedy, J. & Kjesbu, O.S. 2012. Strategies for partition between body growth and reproductive investment in migratory and stationary populations of spring-spawning Atlantic herring (Clupea harengus L.). Fisheries Research 138: 71-79.
 

Schismenou, E., Somarakis, S., Thorsen, A. & Kjesbu, O.S. 2012. Dynamics of de novo vitellogenesis in fish with indeterminate fecundity: an application of oocyte packing density theory to European anchovy, Engraulis encrasicolus. Marine Biology 159: 757-768.
 

McPherson, L.R. & Kjesbu, O.S. 2012. Emergence of an oocytic circumnuclear ring in response to increasing day length in Atlantic herring (Clupea harengus). Marine Biology 159: 341-353.
 


 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 


  

 

Research group