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Updated 23.2.2007
by O.W.Røstad
 

Department of Ecology and Natural Resource Management (INA)


    Reidar Borgstrøm
    Professor

    Postal address: INA, UMB, P.O.Box 5003, NO-1432 Ås, Norway
    Office: Room 243, Urbygningen, Ole Sverres plass 1
    E-mail: reidar.borgstrom/td>@umb.no
    Telephone: +47 64 96 57 54; Fax: +47 64 96 58 01
Subject area:
Fresh water ecology, fish biology and management of fresh water fish.

Research:
Studies related to population ecology and life history of freshwater fish, including anadromous salmonids, as basis for management. Predation and cannibalism, habitat and resource use, exploitation and gear selection, interactions between species, and population manipulations are main areas of interest. See research projects.

Teaching:
Responsible for:
  • NATF240 - Ecology and Management of Freshwater Fish
  • NATF340 - Management of Freshwater Fish
Also lectures in:
  • ECOL250 - Tropical Ecosystems and Biodiversity
  • ECOL380 - The Ecology and Management of Rivers and Lakes
  • NATF100 - Introductory Nature Management
  • NATF320 - Ecology and Management of Natural Resources in the Tropics
  • VANN210 - Limnology / Freshwater Ecology

Selected publications:

Sønstebø, J.H., Borgstrøm, R. & Heun, M. 2007. A comparison of AFLPs and microsatellites to identify the population structure of brown trout (Salmo trutta L.) populations from Hardangervidda, Norway. - Molecular Ecology 16: 1427-1438. (Fulltekst)

Sønstebø, J.H., Borgstrøm, R. & Heun, M. 2007. Genetic structure of brown trout (Salmo trutta L.) from the Hardangervidda mountain plateau (Norway) analyzed by microsatellite DNA: A basis for conservation guidelines. - Conservation Genetics 8: 33-44. (Fulltekst)

Desta, Z., Borgstrøm, R., Rosseland, B.O., & Gebre-Mariam, Z. 2006. Major differences in mercury concentrations of the African big barb, Barbus intermedius (R.) due to shifts in trophic position. - Ecology of freshwater fish 15: 532-543.

Heggenes, J., Skaala, Ø., Borgstrøm, R. & Igland, O.T. 2006. Minimal gene flow from introduced brown trout (Salmo trutta L.) after 30 years of stocking. - Journal of Applied Ichthyology 22: 119-124.

Borgstrøm, R. & Museth, J. 2005. Accumulated snow and summer temperature - critical factors for recruitment to high mountain populations of brown trout (Salmo trutta L.). - Ecology of Freshwater Fish 14: 375-384.

Sharma, C.M., Sharma, S., Borgstrom, R. & Bryceson, I. 2005. Impacts of a small dam on macroinvertebrates: a case study in the Tinau River, Nepal. - Aquatic Ecosystem Health and Management 8: 267-275.

Svenning, M.-A. & Borgstrøm, R. 2005. Cannibalism in Artic charr: do all individuals have the same propensity to be cannibals? – Journal of Fish Biology 66: 957-965.

Svenning, M.-A., Borgstrøm, R., Dehli, T.O., Moen, G., Pedersen, T., Barrett, R.T. & Vader, W. 2005. Large numbers of lesser sandeel (Ammodytes marinus) available as prey for marine fishes enhance the survival of Atlantic salmon smolts (Salmo salar) as they leave the Tana river, North Norway. - Fisheries Research 76: 466-474.

Svenning, M.-A., Fagermo, S.E., Barrett, R.T., Borgstrøm, R., Vader, W., Pedersen, T. & Sandring, S. 2005. Goosander predation and its potential impact on Atlantic salmon smolts in the River Tana estuary, northern Norway. – Journal of Fish Biology 66: 924-937.

Museth, J., Borgstrøm, R., Hame, T. & Holen, L.Å. 2003. Predation by brown trout: a major mortality factor for sexually mature European minnows. - Journal of Fish Biology 62: 692-705.

Borgstrøm, R., Skaala, Ø. & Aastveit, A.H. 2002. High mortality in introduced brown trout depressed potential gene flow to a wild population. - J. Fish Biology 64: 1085-1097.

Brabrand, Å., Koestler, A.G. & Borgstrøm, R. 2002. Lake spawning of brown trout related to groundwater influx. - J. Fish Biol. 60: 751-763. (doi:10.1006/jfbi.2002.1901)

Museth, J., Borgstrøm, R., Brittain, J.E., Herberg, I. & Naalsund, C. 2002. Introduction of the European minnow into a subalpine lake: habitat use and long-term changes in population dynamics. - J. Fish Biol. 60: 1308-1321. (doi:10.1006/jfbi.2002.1951)

Borgstrøm, R. 2001. Relationship between spring snow depth and growth of brown trout Salmo trutta in an alpine lake: Predicting consequences of climate change. - Arctic, Antartic and Alpine Research 33: 476-480.

Vik, J.O., Borgstrøm, R. & Skaala, Ø. 2001. Cannibalism governing mortality of juvenile brown trout, Salmo trutta, in a regulated stream. - Regulated Rivers: Research and Management 17: 583-594.

Skaala, Ø., Jørstad, K.E. & Borgstrøm, R. 1996. Genetic impact on two wild brown trout (Salmo trutta L.) populations after release of non-indigenous spawners. - Canadian J. Fish. Aquat. Sci. 53: 2027-2035.

Borgstrøm, R., Brittain, J.E., Hasle, K., Skjølås, S. & Dokk, J.G. 1996. Reduced recruitment in brown trout Salmo trutta, the role of interactions with the minnow, Phoxinus phoxinus. - Nordic J. Freshw. Res. 72: 30-38.

Svenning, M.-A. & Borgstrøm, R. 1995. Population structure in landlocked Spitsbergen Arctic charr. Sustained by cannibalism? - Nordic J. Freshw. Res. 71: 424-431.

Borgstrøm, R. 1994. Freshwater ecology and fisheries. - Pp 41-69 in: Balakrishnan, M., Borgstrøm, R. & Bie, S.W. (eds.). Tropical ecosystems. A synthesis of tropical ecology and conservation. - Oxford & IBH Publishing Co. Pvt. Ltd., New Dehli.

Borgstrøm, R. 1994. Production in a lacustrine brown trout population with large recruitment potential and low natural mortality: Implications for management. - North Amer. J. Fish. Mgm. 14: 488-499.

Balakrishnan, M., Borgstrøm, R. & Bie, S.W. (eds.) 1994. Tropical ecosystems. A synthesis of tropical ecology and conservation. - New Dehli, Oxford & IBH Publishing Co. Pvt. Ltd. 441 pp.

Borgstrøm, R. 1993. Dynamics and resource use in populations of brown trout, Salmo trutta. - Dr.agric. thesis, NLH, 171 pp.

Borgstrøm, R., Heggenes, J. & Northcote, T.G. 1993. Regular, cyclic oscillations in cohort strength in an allopatric population of brown trout, Salmo trutta L. - Ecology of Freshwater Fish 2: 8-15.

Borgstrøm, R. & Skaala, Ø. 1993. Size-dependent catchability of brown trout and Atlantic salmon parr by electrofishing in a low conductivity stream. - Nordic J. Freshw. Res. 68: 14-21.

Borgstrøm, R. 1992. Effect of population density on gill net catchability in four populations of brown trout, Salmo trutta. - Can. J. Fish. Aquat. Sci. 49: 1539-1545.

Borgstrøm, R. 1992. Relationship between annual recruitment and density in a lacustrine population of allopatric brown trout (Salmo trutta L.). - Can. J. Fish. Aquat. Sci. 49: 1107-1113.

Borgstrøm, R., Brabrand, Å. & Solheim, J.T. 1992. Effects of siltation on resource utilization and dynamics of allopatric brown trout, Salmo trutta, in a reservoir. - Environ. Biol. Fish. 34: 247-255.

Borgstrøm, R. & Plahte, E. 1992. Gillnet selectivity and a model for capture probabilities for a stunted brown trout (Salmo trutta) population. - Can. J. Fish. Aquat. Sci. 49: 1546-1554.

Bjerkeng, B., Borgstrøm, R., Brabrand, Å. & Faafeng, B. 1991. Fish size distribution and total fish biomass estimated by hydroacoustical methods: a statistical approach. - Fisheries Research 11: 41-73.

Heggenes, J. & Borgstrøm, R. 1991. Effect of habitat types on survival, spatial distribution and production of an allopatric cohort of Atlantic salmon, Salmo salar L., under conditions of low competition. - J. Fish Biol. 38: 267-280.

Skaala, Ø., Jørstad, K.E. & Borgstrøm, R. 1991. Fine-spotted brown trout: genetic aspects and the need for conservation. - J. Fish Biol. 39 (Supplement A): 123-130.

Borgstrøm, R. 1989. Direct estimation of gill-net selectivity for roach (Rutilus rutilus (L.)) in a small lake. - Fisheries Research 7: 289-298.

Borgstrøm, R. & Heggenes, J. 1988. Smoltification of sea trout (Salmo trutta) at short length as an adaptation to extremely low summer stream flow. - Pol. Arch. Hydrobiol. 35: 375-384.

Heggenes, J. & Borgstrøm, R. 1988. Effect of mink, Mustela vison Schreber, predation on cohorts of juvenile Atlantic salmon, Salmo salar L., and brown trout, S. trutta L., in three small streams. - J. Fish Biol. 33: 885-894.

Borgstrøm, R., Garnås, E. & Saltveit, S.J. 1985. Interactions between brown trout, Salmo trutta L., and minnow, Phoxinus phoxinus (L.) for their common prey, Lepidurus arcticus (Pallas). - Verh. Internat. Verein. Limnol. 22: 2548-2552.

Borgstrøm, R. & Løkensgard, T. 1984. Influence of discharge and stream gradient on fish community composition in the regulated River Glåma, Norway. - Pp 341-350 in: Lillehammer, A. & Saltveit, S.J. (eds.). Regulated Rivers. Universitetsforlaget, Oslo.

Eie, J.A. & Borgstrøm, R. 1981. Distribution and food of roach (Rutilus rutilus (L.)) and perch (Perca fluviatilis L.) in the eutrophic Lake Årungen, Norway. - Verh. Internat. Verein. Limnol. 21: 1257-1263.

Borgstrøm, R. & Hendrey, G.R. 1976. pH tolerance of the first larval stages of Lepidurus arcticus (Pallas) and adult Gammarus lacustris G. O. Sars. - SNSF-project IR 22/76.

Borgstrøm, R. & Larsson, P. 1974. The first three instars of Lepidurus arcticus (Pallas) (Crustacea: Notostraca). - Norw. J. Zool. 22: 45-52.

Borgstrøm, R. 1973. The effect of increased water level fluctuation upon the brown trout population of Mårvann, a Norwegian reservoir. - Norw. J. Zool. 21: 101-112.

Borgstrøm, R. & Lien, L. 1973. Studies of the Helminth Fauna of Norway. XXX. Description of Proteocephalus sp. Weinland, 1858 (Cestoda: Proteocephala) in brown trout, Salmo trutta L., from southern Norway. - Norw. J. Zool. 21: 289-291.

Lien, L. & Borgstrøm, R. 1973. Studies of the Helminth Fauna of Norway. XXXI. Distribution and seasonal occurrence of Proteocephalus sp. Weinland, 1858 (Cestoda: Proteocephala) in brown trout, Salmo trutta L., from southern Norway. - Norw. J. Zool. 21: 293-297.

Aarefjord, F., Borgstrøm, R., Lien, L. & Milbrink, G. 1973. Oligochaetes in the bottom fauna and stomach content of trout, Salmo trutta (L.). - Norw. J. Zool. 21: 281-286.

Borgstrøm, R. 1970. Studies of the Helminth Fauna of Norway. XVI. Triaenophorus nodulosus (Pallas, 1760) (Cestoda) in Bogstad Lake. III. Occurrence in pike, Esox lucius L. - Nytt Mag. Zool. 18: 209-216.

Bøyum, A. & Borgstrøm, R. 1970. The concentration of granulocytic stem cells in mouse bone marrow, determined with diffusion chamber technique. - Scand. J. Haemat. 7: 294-303.


Department of Ecology and Natural Resource Management
P.O.Box 5003
NO-1432 Ås
Norway
Tel: +47 64 96 58 00
E-mail: ina@umb.no
 
Vollebekk:
Tel.: +47 64 96 50 21
Fax: +47 64 96 58 02
Urbygningen:
Tel.: +47 64 96 58 00
Fax: +47 64 96 58 01