Haakon Hop

Seniorforsker
Haakon Hop
E-post
Telefon77 75 05 22
ArbeidsstedTromsø
Tilknytning

Aktuelle aktiviteter

Completed national and international research projects:

  • Norwegian Research Council & Ministry of Environment & Kings Bay AS grants 2000, 2002. Kongsfjord Ecosystem Workshops 2000, 2002
  • Norsk Hydro, vice-coordinator for research contract to NP 1998-2001 (6.5 mill NOK).
  • Temporal and spatial variability of the ice-ocean system of the ice-edge in the Marginal Ice Zone of the Barents Sea.
  • Norwegian Research Council, Arctic Light and Heat Programme, research grant 1997-2000. How the biodiversity of benthic communities is structured in an Arctic glacial fjord.
  • Norwegian Research Council, mini-AOGC operating grant to NP, 1996. Ecological processes in the Marginal Ice Zone of the northern Barents Sea.
  • Norwegian Research Council, Eastern Europe Programme grant, 1996. The biodiversity and fluxes in glacial arctic fjords.

Running national and international research projects:

  • Norwegian Research Council, Polar-Climate research grant 2003-2006 (project leader: NP-part). Carbon flux and ecosystem feed back in the northern Barents Sea in an era of climate change.
  • Norwegian Research Council, Arktøk research grant 2002-2005 (project leader: Akvaplan-niva). On Thin Ice? Climatic influence on energy flow and trophic structure in Arctic marine ecosystems.

Interesser og spesialfelt

  • My research interests are ecology and bioenergetics of pelagic, sympagic (ice-associated) and hard-bottom fishes and invertebrates in Arctic waters. More holistic interests include ecosystem structure, energy flow and bioaccumulation pollutants in Arctic marine food webs. This includes the integration of physical and biological data in multidisciplinary research projects carried out in the Marginal Ice Zone and in fjords on Svalbard.
  • My experience includes 15+ years of Arctic research, both experimental and field based work. I have organised multidisciplinary research programmes and cruises, and participated on these as researcher, scientific SCUBA diver and cruise leader. I have published more than 30 papers in the peer-reviewed literature, including many multidisciplinary papers. I also have teaching experience as instructor, annual lecturer and external examiner at the university level, and am external supervisor for graduate students. I have organised and led several workshops and sat on review panel for international research proposals. I have lead international groups for establishing new marine research projects in Kongsfjorden and a new Arctic marine laboratory in Ny-Ålesund.

Referanser

Gannefors, C. M.Böer, G. Kattner, M. Graeve, K. Eiane, B. Gulliksen, H. Hop, and S. Falk-Petersen. The Arctic sea butterfly Limacina helicina; lipids and life strategy. Marine Biology (Accepted).

Walkusz, W., S. Kwasniewski, K. Dmoch, M. I. Zmijewska, S. Falk-Petersen, H. Hop, and J. Sicinski. Characteristics of the Arctic and Antarctic zooplankton in the neritic zone during summer. Pol. Polar Res. (Acccepted).

Borgå, K., H. Wolkers, J.U. Skaare, H. Hop, D.C.G. Muir, and G.W. Gabrielsen. Bioaccumulation of PCBs in Arctic seabirds; influence of dietary exposure and congener biotransformation. Environmental Pollution (Accepted)

Wiencke, C., B. Vögele, N.A. Kovaltchouk., and H. Hop. 2004. Species composition and zonation of marine benthic macroalgae at Hansneset in Kongsfjorden, Svalbard. Koldewey-Synopsis in Polar and Marine Research (Accepted).

Engelsen, O., H. Hop, E.N. Hegseth, E. Hansen, and S. Falk-Petersen. 2004. Deriving phytoplankton biomass in the Marginal Ice Zone from satellite observable parameters. International Journal of Remote Sensing 25: 1453-1457.

Søreide, J.E., H. Hop, S. Falk-Petersen, B. Gulliksen, and E. Hansen. 2003. Macro-zooplankton communities and their environmental variables in the Barents Sea marginal ice zone in late winter and spring Marine Ecology Progress Series 263: 43-64.

Dahl, T.M., S. Falk-Petersen, G.W. Gabrielsen, J.R. Sargent, H. Hop, and R.-M. Millar. 2003. Lipids and stable isotopes in common eider, black-legged kittiwake and northern fulmar: a trophic study from an Arctic fjord. Marine Ecology Progress Series 256: 257-269.

Kwasniewski, S., H. Hop, S. Falk-Petersen, and G. Pedersen. 2003. Distribution of Calanus species in Kongsfjorden, a glacial fjord in Svalbard. Journal of Plankton Research 25: 1-20.

Hop, H., T. Pearson, E.N. Hegseth, K.M. Kovacs, C. Wiencke, S. Kwasniewski, K. Eiane, F. Mehlum, B. Gulliksen, M. Wlodarska-Kowalczuk, C. Lydersen, J.M. Weslawski, S. Cochrane, G.W. Gabrielsen, R.J.G. Leakey, O.J. Lønne, M. Zajaczkowski, S. Falk-Petersen, M. Kendall, S.-Å. Wängberg, K. Bischof, A.Y. Voronkov, N.A. Kovaltchouk, J. Wiktor, M. Poltermann, G. di Prisco, C. Papucci, and S. Gerland. 2002. The marine ecosystem of Kongsfjorden, Svalbard. Polar Research 21: 167-208.

Hop, H., K. Borgå, G.W. Gabrielsen, L. Kleivane, and J. U. Skaare. 2002. Food web magnification of persistent organic pollutants in poikilotherms and homeotherms from the Barents Sea food web. Environmental Science and Technology 36: 2589-2597.

Engelsen, O., E.N. Hegseth, H. Hop, E. Hansen, and S. Falk-Petersen. 2002. Spatial variability of chlorophyll-a in the Marginal Ice Zone of the Barents Sea, with relations to sea ice and oceanographic conditions. Journal of Marine Systems 35: 79-97.

Falk-Petersen, S., T.M. Dahl., C.L. Scott, , J.R. Sargent, B. Gulliksen, S. Kwasniewski, H. Hop, and R.-M. Millar. 2002. Lipid biomarkers and trophic linkages between the Arctic ctenophores and calanoid copepods in Svalbard waters. Marine Ecology Progress Series 227: 187-194.

Gontar, V.I., H. Hop, and A. Yu. Voronkov. 2001. Diversity and distribution of Bryozoa in Kongsfjorden, Svalbard. Polish Polar Research 22: 187-204.

Falk-Petersen, S., H. Hop, W.P. Budgell, E.N. Hegseth, R. Korsnes, T.B. Løyning, J.B. Ørbæk, T. Kawamura, and K. Shirasawa. 2000. Physical and ecological processes in the Marginal Ice Zone of the northern Barents Sea during the summer melt period. Journal of Marine Systems 27: 131-159.

Poltermann, M., H. Hop, and S. Falk-Petersen. 2000. Life under Arctic sea ice – reproduction strategies of two sympagic (ice-associated) amphipod species, Gammarus wilkitzkii and Apherusa glacialis. Marine Biology 136: 913-920.

Hop, H., M. Poltermann, O.J. Lønne, S. Falk-Petersen, R. Korsnes, and W.P Budgell. 2000. Ice-amphipod distribution relative to ice density and under-ice topography in the northern Barents Sea. Polar Biology 23: 357-367.

Falk-Petersen, S., G. Pedersen, S. Kwasniewski, E.N. Hegseth, and H. Hop. 1999 Spatial distribution and life-cycle timing of zooplankton in the marginal ice zone of the Barents Sea during the summer melt season in 1995. Journal of Plankton Research 21: 1249-1264.

Scott, C.L., S. Falk-Petersen, J.R. Sargent, H. Hop, O.J. Lønne, and M. Poltermann. 1999. Lipids and trophic interactions of ice fauna and pelagic zooplankton in the marginal ice zone of the Barents Sea. Polar Biology 21: 65-70.

Falk-Petersen, S. J.R. Sargent, J. Henderson, E.N. Hegseth, H. Hop, and Y.B. Okolodkov. 1998. Lipids and fatty acids in ice algae and phytoplankton from the Marginal Ice Zone in the Barents Sea. Polar Biology 20: 41-47.

Hop, H. and W.M. Tonn. 1998. Gastric evacuation rates and daily rations of Arctic cod (Boreogadus saida) at low temperatures. Polar Biology 19: 293-301.

Hop, H., W.M. Tonn, and H.E. Welch. 1997. Bioenergetics of Arctic cod (Boreogadus saida) at low temperatures. Canadian Journal of Fisheries and Aquatic Sciences 54: 1772-1784.

Hop, H., H.E. Welch, and R.E. Crawford. 1997. Population structure and feeding ecology of Arctic cod schools in the Canadian High Arctic. Pages 68-80 In: J. Reynolds (editor). Fish ecology in Arctic North America. American Fisheries Society Symposium 19, Bethesda, Maryland.

Graham, M. and H. Hop. 1995. Aspects of reproduction and larval biology of Arctic cod (Boreogadus saida). Arctic 48: 130-135.

Hop, H. and M. Graham. 1995. Respiration of juvenile Arctic cod (Boreogadus saida): effects of acclimation, temperature, and food intake. Polar Biology 15: 359-367.

Hop, H., M. Graham, and V.L. Trudeau. 1995. Spawning energetics of Arctic cod (Boreogadus saida) in relation to seasonal development of the ovary and plasma sex steroid levels. Canadian Journal of Fisheries and Aquatic Sciences 52: 541-550.

Hop, H., J. Gjøsæter, and D.S. Danielssen. 1994. Dietary composition of sympatric juvenile cod, Gadus morhua L., and juvenile whiting, Merlangius merlangus L., in a fjord of southern Norway. Aquaculture and Fisheries Management 25 (suppl.1): 49-64.

Hop, H., D.S. Danielssen, and J. Gjøsæter. 1993. Winter feeding ecology of cod (Gadus morhua) in a fjord of southern Norway. Journal of Fish Biology 43: 1-18.

Welch, H.E., R.E. Crawford, and H. Hop. 1993. Occurrence of Arctic cod (Boreogadus saida) schools and their vulnerability to predation in the Canadian high arctic. Arctic 46: 331-339.

Hop, H., J. Gjøsæter, and D.S. Danielssen. 1992. Seasonal feeding ecology of cod (Gadus morhua L.) on the Norwegian Skagerrak coast. ICES Journal of Marine Science 49: 453-461.

Welch, H.E., M.A. Bergmann, T.D. Siferd, K.A. Martin, M.F. Curtis, R.E. Crawford, R.J. Conover, and H. Hop. 1992. Energy flow through the marine ecosystem of the Lancaster Sound region, Arctic Canada. Arctic 45: 343-357.

West, R.L., M.W. Smith, W.E. Barber, J.B. Reynolds, and H. Hop. 1992. Autumn migration and overwintering of Arctic grayling in coastal streams of the Arctic National Wildlife Refuge, Alaska. Transactions of the American Fisheries Society 121: 709-715.

Hop, H. 1989. Fiskeørn Pandion h. haliaetus i Aust-Agder, Sør Norge, hekkebestand og reproduksjon 1980-88. (Osprey Pandion h. haliaetus in Aust-Agder, southern Norway; breeding population and reproduction 1980-88.) Fauna 42: 1-12. (In Norwegian with English summary).

Hop, H. and A.J. Gharrett. 1989. Genetic relationships of Arctic grayling in the Koyukuk and Tanana rivers, Alaska. Transactions of the American Fisheries Society 118: 290-295.
Armstrong, R.H., H. Hop, and J.H. Triplehorn. 1986. Indexed bibliography of the holarctic genus Thymallus (grayling) to 1985. Biological Papers of the University of Alaska 23: 19-110