Hopp til hovedteksten
harald-web_2.jpg

Harald Gjøsæter

Phone: 55 23 84 17 / 41 47 91 77
Mobile phone: 41479177
Visiting address: Nordnesgaten 33, 3. etg

Works with

I take part in assessment work through my membership in the ICES Arctic Fisheries Working Group. My main research topic is the ecosystem of the Barents Sea, with empahsis on the interrelationship between the stocks of cod, herring and capelin.

Curriculum Vitae

Harald Gjøsæter

Born 1955 at Stord, Norway. Married, lives at Askøy.

Education:

Candidatus magisterii,  biology, chemistry, mathematics, oceanography University of Bergen 1979
 

Candidatus realium, fisheries biology, University of Bergen 1981
 

Doctor philosophiae, fiskerhies biology, University of Bergen 2000. Thesis: "Studies of the Barents Sea capelin (Mallotus villosus Müller), with emphasis on growth"

Career/Employment

1979: A six-month contract with IMR to do literature studies connected to the planning of a fisheries research project with “Dr. Fridtjof Nansen” in Angola

1981: A two-month contract with IMR to work up biological samples from “Dr. Fridtjof Nansen” surveys in Western Africa during 1981

1982-1984. Various time-limited contracts with IMR. Routine research work at the Division for Pelagic Fish. Leadership of several surveys per year.

1985-1986. Position as "Researcher 1108" at IMR. Research, monitoring, stock assessment, consultative work on pelagic fish stocks.

1986-1997. Position as "Researcher 1109" at IMR. Research, monitoring, stock assessment, consultative work on pelagic fish stocks.

1998-2001. Position as "Researcher 1110" at IMR. Research, monitoring, stock assessment, consultative work on pelagic fish stocks. In 2001 also Deputy Head of Pelagic Division.

2002 -2003: Head of Division for Pelagic Fish. Research, monitoring, stock assessment, consultative work on pelagic fish stocks. Administrative work connected to the position as Head of Division.

2004. Given position as "Researcher 1183" at IMR based on an assessment of competence.

2004 - 2007: Head of research Group “Barents Sea Ecosystem and fish stocks”.

2007 – 2010: Head of Research Group "Demersal fish".

2010 - present: Scientist, Research Group "Demersal fish"

Specialisation

i) Population dynamics of boreal marine fish with emphasis on biology relevant to fisheries management.

ii) Acoustic stock size estimation methods.

iii) The role of capelin in the ecosystem.

iv) Fish stock assessment.

Some recent publications:

14. Gundersen, A.C and H. Gjøsæter 1998. A comparison between abundance estimates of the Barents Sea capelin (Mallotus villosus Müller) at the larval, 0-group and 1-group stage, for the year classes 1981-1994. ICES J. Mar. Sci. 55:95-101
15. Toresen, R., H. Gjøsæter and P. de Barros 1998. The acoustic method as used in the abundance estimation of capelin (Mallotus villosus Müller) and herring (Clupea harengus Linné) in the Barents Sea. Fisheries Research 34:27-37.
16. Gjøsæter, H. and B. Bogstad (1998). Effects of the presence of herring (Clupea harengus) on the stock-recruitment relationship of Barents Sea capelin (Mallotus villosus). Fisheries Research 38:57-71.
17. Gjøsæter, H. (1998). The Population Biology and Exploitation of Capelin (Mallotus villosus) in the Barents Sea. Sarsia 83:453-496
18. Gjøsæter, H., A. Dommasnes and B. Røttingen (1998). The Barents Sea capelin stock 1972-1997. A synthesis of results from acoustic surveys. Sarsia 53:497-513
19. Huse, G. and H. Gjøsæter (1999). A neural network approach for predicting stock abundance of the Barents Sea capelin. Sarsia 84:479-482
20. Gjøsæter, H., P. Dalpadado, A. Hassel and H.R. Skjoldal 2000. A comparison of performance of MOCNESS and WPII. Journal of Plankton Research 22(10):1901-1908.
21. Bogstad, B. and H. Gjøsæter 2001. Predation by cod (Gadus morhua) on capelin (Mallotus villosus) in the Barents Sea: implications for capelin stock assessment. Fisheries Research 53(2):197-209.
22. Gjøsæter, H., B. Bogstad and S. Tjelmeland 2002. Assessment methodology for Barents Sea capelin, Mallotus villosus (Müller). ICES Journal of Marine Science, 59:1086.1095.
23. Gjøsæter, H., P. Dalpadado and A. Hassel 2002. Growth of Barents Sea capelin (Mallotus villosus) in relation to zooplankton abundance. ICES Journal of Marine Science 59:959.967.
24. Dalpadado, P., B. Bogstad, H. Gjøsæter, S. Mehl, H.R. Skjoldal 2002. Zooplankton-Fish Interactions in the Barents Sea. Chapter 9 (pp 269-291) in: K. Sherman and H.R. Skjoldal (eds.) Large Marine Ecosystems of the North Atlantic.
25. Jørgensen, R., Handegard, N.O., Gjøsæter, H., and Slotte, A. 2004. Possible vessel avoidance behaviour of capelin in a feeding area and on a spawning ground. Fisheries Research 69:251-261.
26. Huse, G., Johansen, G.O., Bogstad, B. and Gjøsæter, H. 2004 Studying spatial and trophic interactions between capelin and cod using individual-based modelling. ICES Journal of Marine Science, 61:1201-1213.
27. Slotte, A., Mikkelsen, N., and Gjøsæter, H. (2006). Egg cannibalism in Barents Sea capelin in relation to a narrow spawning distribution. Journal of Fish Biology 68:1-16.
28. Fauchald, P., Mauritzen, M., Gjøsæter, H. (2006). Density dependent migratory waves in the marine pelagic ecosystem. Ecology 87:2915-2924.
29. Hjermann, D., Bogstad, B., Eikeset, A.-M., Ottersen, G., Gjøsæter, H., and Stenseth, N.Chr. (2007). Food web dynamics affect Northeast Arctic cod recruitment. Proceedings of the Royal Society B 274:661-669
30. Ciannelli, L., Dingsør, G., Bogstad, B., Ottersen, G., Chan, K-S., Gjøsæter, H., Stiansen, J.E., Stenseth, N.Chr. (2007). Spatial Anatomy Of Species Survival Rates: Effects Of Predation And Climate-Driven Environmental Variability. Ecology, 88:635-646.
31. Olsen, E., Gjøsæter, H., Røttingen, I., Dommasnes, A., Fossum, P. and Sandberg, P. (2007). The Norwegian ecosystem-based management plan for the Barents Sea. ICES Journal of Marine Science, 64: 599-602.
32. Haug, T., Røttingen, I., Gjøsæter, H., Misund, O.A., Fenchel, T., and Uiblein, F. 2009, Fifty years of Norwegian-Russian collaboration in marine research. Editorial. Marine Biology Research, 5:1-3.
33. Gjøsæter, H., Bogstad, B., and Tjelmeland, S. 2009. Ecological effects of three capelin stock collapses in the Barents Sea. Marine Biology Research, 5:40-53.
34. Link, J.S., Stockhausen, W., Skaret,G., Overholtz W., Megrey, B.A., Gjøsæter, H., Gaichas, S., Dommasnes, A., Falk-Petersen, J., Kane, J., Mueter, F., Friedland, K., and Hare, J. (2009). A comparison of biological trends from four marine ecosystems: synchronies, differences, and commonalities. Progress in Oceanography 81:29-46.
35. Gaichas, S., Skaret, G., Falk-Petersen, J., Link, J.S., Overholtz, W., Megrey, B.A., Gjøsæter, H., Stockhausen, W., Dommasnes, A., Friedland, K., and Aydin, K. (2009). A comparison of community and trophic structure in five marine ecosystems based on energy budgets and system metrics. Progress in Oceanography 81: 47–62.
36. Megrey, B.A., Hare, J., Stockhausen, W.T., Dommasnes, A., Gjøsæter, H., Overholtz, W., Gaichas, S., Skaret, G., Falk-Petersen, J., Link, J.S., Friedland, K. (2009). A cross-ecosystem comparison of spatial and temporal patterns of covariation in the recruitment of functionally analogous fish stocks. Progress in Oceanography 81: 63–92.
37. Olsen, E., Aanes, S., Mehl, S., Holst, J. C., Aglen, A., and Gjøsæter, H. (2010). Cod, haddock, saithe, herring, and capelin in the Barents Sea and adjacent waters: a review of the biological value of the area. – ICES Journal of Marine Science, 67: 87–101.
38. Hjermann, D. Ø., Bogstad, B., Dingsør, G. E., Gjøsæter, H., Ottersen, G., Eikeset, A. M. and Stenseth, N. C. 2010. Trophic interactions affecting a key ecosystem component: a multi-stage analysis of the recruitment of the Barents Sea capelin. Canadian Journal of Fisheries and Aquatic Sciences, 67: 1363-1375.