Harald Gjøsæter

Telefon: 414 79 177

Arbeider med

Jeg arbeider hovedsakelig med økologiske spørsmål knyttet til Barentshavet og Polhavet, særlig med forholdet mellom torsk, lodde, sild og plankton i Barentshavet. Jeg er medlem av ICES-arbeidsgruppene for integrert vurdering av Barentshavet (WGIBAR) og Polhavet (WGICA). Jeg tar også del i bestandsvurdering av bestandene i Barentshavet i ICES arbeidsgruppen "Arctic Fisheries Working Group" (AFWG). Jeg er norsk medlem i rådgivningskomiteen ACOM i ICES og bruker mye tid på forvaltningsrådgivning og informasjon knyttet til forvaltning.

Curriculum Vitae

Harald Gjøsæter

Født 1955 på Stord, gift, bor på Askøy.

Utdanning:

Candidatus magisterii, biologi, kjemi, matematikk, oseanografi Universitetet i Bergen 1979

Candidatus realium, fiskeribiologi, Universitetet i Bergen 1981

Doctor philosophiae, fiskeribiologi, Universitetet i Bergen 2000. Avhandling: "Studies of the Barents Sea capelin (Mallotus villosus Müller), with emphasis on growth"

Arbeidserfaring

1979: Et seks måneders engasjement på Havforskningsinstituttet for å gjøre en litteraturstudie i forbindelse med et planlagt prosejekt med “Dr. Fridtjof Nansen” utenfor Angola.

1981. Et to måneders engasjement ved Havforskningsinstituttet for å opparbeide biologiske prøver fra “Dr. Fridtjof Nansen” sitt tokt utenfor Vestafrika i 1981

1982-1984. Forskjellige tidsavgrensede engasjementer ved Havforskningsinstituttet. Vanlig forskningsarbeid ved avdeling pelagisk fisk. Toktledelse.

1985-1986. Stilling som forsker 1108 ved Havforskningsinstituttet. Toktaktivitet, forskning, overvåkning, bestandsvurdering og rådgivning på pelagiske bestander.

1986-1997. Stilling som forsker 1109 ved Havforskningsinstituttet. Toktaktivitet, forskning, overvåkning, bestandsvurdering og rådgivning på pelagiske bestander.

1998-2001. Stilling som forsker 1110 ved Havforskningsinstituttet. Toktaktivitet, forskning, overvåkning, bestandsvurdering og rådgivning på pelagiske bestander. I 2001 også stilling som nestleder ved avdeling Pelagisk Nord.

2002 -2003: Stilling som leder av avdeling Pelagisk Nord. Toktaktivitet, forskning, overvåkning, bestandsvurdering og rådgivning på pelagiske bestander. Administrativt arbeid og forskningsledelse.

2004. Gitt stilling som forsker 1183 ved Havforskningsinstituttet etter en kompetansebedømming.

2004 - 2007: Leder for forskningsgruppen "Økosystem og fiskebestander - Barentshavet"

2007 – 2010: Leder for faggruppen "Bunnfisk"

2016: Fungerende leder for forskningsprogrammet "Barentshavet og Polhavet"

2010 - dags dato. Forsker i faggruppen "Bunnfisk"

Sepesialisering:

i) Populasjonsdynamikk hos marin fisk i nordområdene med hovedvekt på biologi relevant for fiskeriforvaltning

ii) Akustiske bestandsestimeringsmetoder.

iii) Loddas rolle i økosystemet.

iv) Bestandsvurdering.

Noen  puplikasjoner i internasjonale fagfellevurderte tidsskrifter:

1. Gjøsæter, H . and S. Tilseth 1982. Primary growth increments in otoliths of cod larvae (Gadus morhua L.) of the Arcto-norwegian cod stock. FiskDir. Skr. Ser. Havunders. 17: 287-295

2. Gjøsæter, H . and J. Gjøsæter. 1986. Observations on the embryonic development of capelin (Mallotus villosus Muller) from the Barents Sea. FiskDir. Skr. Ser. Havunders., 18:59-68

3. Gjøsæter, H . 1987. Primary growth increments in otoliths of six tropical myctophid species. Biological Oceanography 4(4):359-382.

4. Gjøsæter, H . and H. Loeng 1987. Growth of the Barents Sea capelin (Mallotus villosus) in relation to climate. Environmental Biology of Fishes 29(4):293-300

5. Hassel, A., H.R. Skjoldal, H. Gjøsæter, H . Loeng, and L. Omli 1992. Impact of grazing from capelin (Mallotus villosus) on zooplankton: a case study in the northern Barents Sea in August 1985. Pp 371-388 in Sakshaug, E., C.C.E. Hopkins and N.A. Øritsland (eds.): Proceedings of the Pro Mare Symposium on Polar Marine Ecology, Trondheim, 12-16 May 1990. Polar Research 10(2).

6. Skjoldal, H.R., H. Gjøsæter , H. Loeng. (1992) The Barents Sea ecosystem in the 1980's: Ocean climate, plankton and capelin growth. ICES Mar. Sci. Symp.,278-290.

7. Gjøsæter, H . and A.M. Ajiad 1994. Growth of polar cod, Boreogadus saida (Lepechin), in the Barents Sea. ICES J.mar.Sci. 51:115-120.

8. Bogstad, B. and H. Gjøsæter 1994. A method for estimating the consumption of capelin by cod in the Barents Sea. ICES J.Mar.Sci. 51:273-280

9. Gjøsæter, H. 1995. Pelagic fish and the ecological impact of the modern fishing industry in the Barents Sea. Arctic 48(3):267-278

10. Haug, T., H. Gjøsæter , U. Lindstrøm and K.T. Nilssen 1995. Diet and food availability for north-east Atlantic minke whales (Balaenoptera acutorostrata), during the summer of 1992. ICES J. mar. Sci. 52:77-86

11. Haug, T., H. Gjøsæter , U. Lindstrøm, K.T. Nilssen and I. Røttingen 1995. Spatial and temporal variations in northeast Atlantic Minke whale Balaenoptera acutorostrata feeding habits. Pp 225-239 in Blix, A.S., L. Wallø and Ø. Ulltang (eds.) Development in Marine Biology 4. Whales, seals, fish and man. Proceedings of the International Symposium on the Biology of Marine Mammals in the North East Atlantic, Tromsø, Norway, 29 November - 1 December 1994. Elsevier, Amsterdam ISBN 0-444-82070-1 720 p.

12. Huse, G. and H. Gjøsæter 1997. Fecundity of the Barents Sea capelin (Mallotus villosus). Marine Biology (1997) 130:309-313.

13. Skaug, H.J., H. Gjøsæter , T. Haug, K.T. Nilssen and U. Lindstrøm 1997. Do Minke Whales (Balaenoptera acutorostrata) Exhibit Particular Prey Preferences? J. Northw. Atl. Fish. Sci., Vol. 22:91-104.

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 begin_of_the_skype_highlighting 2915-2924 end_of_the_skype_highlighting begin_of_the_skype_highlighting 2915-2924 begin_of_the_skype_highlighting 2915-2924 end_of_the_skype_highlighting end_of_the_skype_highlighting.

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.

39. Baulier, L., M. Heino and H. Gjøsæter (2012). "Temporal stability of the maturation schedule of capelin Mallotus villosus in the Barents Sea." Aquatic Living Resources 25: 151-161.

40. Gjøsæter, H ., S. Tjelmeland and B. Bogstad 2012. Ecosystem-based Management of Fish Species in the Barents Sea. In Global Progress in Ecosystem-Based Fisheries Management., pp. 333-352. Ed. by G. H. Kruse, H. I. Browman, K. L. Cochrane, D. Evans, G. S. Jamieson, P. A. Livingston, D. Woodby and C. I. Zhang. Alaska Sea Grant, University of Alaska Fairbanks

41. Johannesen, E., R. Ingvaldsen, B. Bogstad, P. Dalpadado, E. Eriksen, H. Gjøsæter , T. Knutsen, M. Skern-Mauritzen and J. E. Stiansen (2012). "Changes in Barents Sea ecosystem state 1970-2009: climate fluctuations, human impact and trophic interactions." ICES Journal of Marine Science 69: 880-889.Ingvaldsen, R. and H. Gjøsæter in press. Impact of marine climate variability on the spatial distribution of Barents Sea capelin. Marine Biology Research.

42. Carscadden, J.E., H. Gjøsæter and H. Vilhjálmsson 2013. Recruitment in the Barents Sea, Icelandic, and Eastern Newfoundland/Labrador Capelin (Mallotus villosus) Stocks. Progress in Oceanography 114: 84-96

43. Carscadden, J.E., H. Gjøsæter and H. Vilhjálmsson 2013. A comparison of recent changes in distribution of capelin (Mallotus villosus) in the Barents Sea, around Iceland and in the Northwest Atlantic. Progress in Oceanography 114: 64-83

44. Bogstad, B., G. E. Dingsør, R. B. Ingvaldsen and H. Gjøsæter 2013. Changes in the relationship between sea temperature and recruitment of cod, haddock and herring in the Barents Sea. Marine Biology Research 9(9): 895-907.

45. Hop, H. and H. Gjøsæter 2013. Polar cod (Boreogadus saida) and capelin (Mallotus villosus) as key species in marine food webs of the Arctic and the Barents Sea. Marine Biology Research. 9(9): 878-894.


46. Ingvaldsen, R. and H. Gjøsæter 2013. Impact of marine climate variability on the spatial distribution of Barents Sea capelin. Marine Biology Research 9(9): 867-877.

47. Michalsen, K., P. Dalpadado, E. Eriksen, H. Gjøsæter , R. Ingvaldsen, E. Johannesen, L. L. Jørgensen, T. Knutsen, D. V. Prozorkevich and M. Skern-Mauritzen (2013). "Climate change and its effects on the marine liing resources of the Barents Sea - monitoring implications and challenges." Marine Biology Research 9(9): 932-947.

48. Forseth, T., P. Fiske, B. Barlaup, H. Gjøsæter , K. Hindar and O.H. Diserud 2013. Reference point based management of Norwegian Atlantic salmon populations. Environmental Conservation, 40: 356-366.

49. Kjesbu, O.S., B. Bogstad, J.A. Devine, H. Gjøsæter , R. Ingvaldsen, R.D.M. Nash and J.E. Skjaeraasen 2014. Synergies between climate and management for Atlantic cod fisheries at high latitudes. Proceedings of the National Academy of Science.

50. Planque, B., R. Primicerio, K. Michalsen, M. Aschan, G. Certain, P. Dalpadado, H. Gjøsæter , et al. 2014. Who eats whom in the Barents Sea: a food web topology from plankton to whales. Ecology, 25:1430.

51. Gjøsæter, H ., B. Bogstad, S. Tjelmeland and S. Subbey 2015. A retrospective evaluation of the Barents Sea capelin management advice. Marine Biology Research, 11: 135-143.

52. Bogstad, B., H. Gjøsæter , T. Haug and U. Lindstrøm 2015. A review of the battle for food in the Barents Sea: cod vs. marine mammals. Frontiers in Ecology and Evolution, 3:29: 17pp.

53. Ingvaldsen, R.B., B. Bogstad, A.V. Dolgov, K.E. Ellingsen, H. Gjøsæter , R. Gradinger, E. Johannesen, et al. 2015. Sources of uncertainties in cod distribution models. Nature Climate Change, 5: 788-789.

54. Gjøsæter, H ., Hallfredsson, E. H., Mikkelsen, N., Bogstad, B., and Pedersen, T. 2016. Predation on early life stages is decisive for year-class strength in the Barents Sea capelin (Mallotus villosus) stock. ICES J. Mar. Sci., 73:182-195

55. Misund, O. A., Heggland, K., Skogseth, R., Falck, E., Gjøsæter, H ., Sundet, J., Watne, J., et al. 2016. Norwegian fisheries in the Svalbard zone since 1980. Regulations, profitability and warming waters affect landings. Polar Science, 10: 312-322.

56. Haug, T., Bogstad, B., Chierici, M., Gjøsæter, H ., Hallfredsson, E. H., Høines, Å. S., Hoel, A. H., et al. 2017. Future harvest of living resources in the Arctic Ocean north of the Nordic and Barents Seas: A review of possibilities and constraints. Fisheries Research, 188: 38-57.

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