Environmental Biology of Fishes

, Volume 23, Issue 3, pp 183–195 | Cite as

Density, length distribution, and diet of age-0 arctic charrSalvelinus alpinus in the surf zone of Thingvallavatn, Iceland

  • Odd Terje Sandlund
  • Hilmar J. Malmquist
  • Bror Jonsson
  • Skúli Skúlason
  • Sigurdur S. Snorrason
  • Pétur M. Jónasson
  • Rolf Gydemo
  • Torfinn Lindem
Article

Synopsis

Population densities of age-0 arctic chaff in the surf zone averaged 1.83 and 4.70 fish m-2 in August 1984 and June 1985, respectively. Length variation of the littoral fish was low in early summer, increasing in late summer and autumn. Newly emerged charr, ∼ 20 mm long, appeared in the stony shallow water zone during both May and June. From length variation and variation in mouth position of the young charr, it is concluded that at least two of the four chaff morphs in the lake are present in the surf zone during spring and summer. In August, some of the larger age-0 charr had moved out from the surf zone, into the pelagic and the deeper epibenthic waters. The food of young littoral charr was dominated by large chironomid larvae (instar 3 and 4) and pupae

Key words

Habitat Chironomidae Charr morphs Start food Fishes Salmonids 

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References cited

  1. Antonsson, Ú. 1977. Zooplankton in Lake Thingvallavatn 1972–75. B. Sc. Thesis, University of Iceland, Reykjavik. 60 pp. (In Icelandic).Google Scholar
  2. Balon, E.K. 1980. Early ontogeny of the European landlocked arctic charr - altricial form,Salvelinus (Salvelinus) alpinus alpinus. pp. 607–630. In: Balon, E.K. (ed.) Charrs: Salmonid Fishes of the GenusSalvelinus, Perpectives in Vertebrate Science 1, Dr. W. Junk Publishes, The Hague.Google Scholar
  3. Frost, W.E. 1965. Breeding habits of Windermere char,Salvelinus willughbii (Gunther) and their bearing on speciation in these fish. Proc. R. Soc. Edinb. B. 163: 232–284.CrossRefGoogle Scholar
  4. Heggberget, T. 1984. Habitat selection and segregation of parr of Arctic charr (Salvelinus alpinus), brown trout (Salmo trutta) and Atlantic salmon (S. salar L.) in two streams in North Norway. pp. 217–231. In: L. Johnson & B.L. Burns (ed.) Biology of the Arctic Charr, Proceedings of the International Symposium on Arctic Charr, Winnipeg, Manitoba, May 1981. University of Manitoba Press, Winnipeg.Google Scholar
  5. Hindar, K. & B. Jonsson. 1982. Habitat and food segregation of dwarf and normal Arctic charr (Salvelinus alpinus) from Vangsvatnet Lake, western Norway. Can. J. Fish. Aquat. Sci. 39: 1030–1045.Google Scholar
  6. Johnson, L. 1976. Ecology of Arctic populations of lake trout (Salvelinus namaycush), lake whitefish (Coregonus clupeaformis) and arctic chaff (Salvelinus alpinus) and associated species in unexploited lakes of the Canadian Northwest Territories. J. Fish. Res. Board Can. 33: 2459–2488.Google Scholar
  7. Johnson, L. 1980. The arctic charr,Salvelinus alpinus. pp. 15–98. In: E.K. Balon (ed.) Charrs, Salmonid Fishes of the GenusSalvelinus Perspectives in Vertebrate Science 1, Dr. W. Junk Publishers, The Hague.Google Scholar
  8. Jónasson, P.M. & C. Lindegaard. 1987. Ecosystem studies of North Atlantic Ridge lakes. Verh. Int. Verein. Limnol. (in press).Google Scholar
  9. Jónsson, B. 1976. Comparison of scales and otoliths for age determination in brown trout,Salmo trutta L. Norw. J. Zool. 24: 295–301.Google Scholar
  10. Jonsson, B. & F.R. Gravem. 1985. Use of space and food by resident and migrant brown trout,Salmo trutta. Env. Biol. Fish. 14: 281–293.CrossRefGoogle Scholar
  11. Jónsson, G.St. 1987. The depth-distribution and biomass of epilithic periphyton in Lake Thingvallavatn, Iceland. Arch. Hydrobiol. 108: 531–547.Google Scholar
  12. Kairesalo, T.K. Gunnarsson & G.St. Jónsson. 1987. The occurrence and photosynthetic activity of epiphytes on the tips ofNitella opaca Ag. (Charophycae). Aquat. Bot. 28: 333–340.CrossRefGoogle Scholar
  13. Kircheis, F.W. 1976. Reproductive biology and early life history of the sunapee trout of Floods Pont, Maine. Trans. Amer. Fish. Soc 105: 615–619.CrossRefGoogle Scholar
  14. Lastein, E. 1983. Decomposition and sedimentation processes in oligotrophic, subarctic Lake Thingvalla, Iceland. Oikos 40: 103–112.Google Scholar
  15. Lindegaard, C. 1980. Bathymetric distribution of Chironomidae (Diptera) in the oligotrophic Lake Thingvallavatn, Iceland. pp. 225–232. In: D.A. Murray (ed.) Chironomidae, Ecology, Systematics, Cytology and Physiology, Pergamon Press, Oxford.Google Scholar
  16. Lindegaard, C. 1982. Zoobenthos of Lake Thingvallavatn. Preliminary results. Mimeographed report, Freshwater Biological Laboratory, University of Copenhagen. 22 pp.Google Scholar
  17. Lindem, T. 1983. Successes with conventional in situ determination of fish target strength. pp. 104–111. In: O. Nakken & C. Vennema (ed.) Symposium on Fisheries Acoustics, Bergen, Norway.Google Scholar
  18. Lindem, T. & O.T. Sandlund. 1984. New methods in assessment of pelagic freshwater fish stocks — coordinated use of echosounder, pelagic trawl and pelagic nets. Fauna, Oslo 37: 105–111 (In Norwegian).Google Scholar
  19. Lindström, T. 1955. On the relation fish size — food size. Rep. Inst. Freshwat. Res. Drottningholm 36: 133–147.Google Scholar
  20. Magnússon, K.P. & M.M. Ferguson. 1987. Genetic analysis of four sympatric morphs of Arctic charr,Salvelinus alpinus, from Thingvallavatn, Iceland. Env. Biol. Fish. 20: 67–73.CrossRefGoogle Scholar
  21. Malmquist, H.J. 1983. Food, parasites and growth of the Arctic charr (Salvelinus alpinus) morphs in Lake Thingvallavatn. B.Sc. Thesis, University of Iceland, Reykjavik. 112 pp. (In Icelandic).Google Scholar
  22. Malmquist, H.J., S.S. Snorrasson & S. Skúlason. 1985. The biology of Arctic chary (Salvelinus alpinus (L.)) in Lake Thingvallavatn, Iceland. I. Feeding ecology. Natturufræingurinn 55: 195–217. (In Icelandic).Google Scholar
  23. Nielsen, J. 1961. Age and growth of the freshwater stage of anadromous charSalvelinus alpinus. Medd. om Grønland 159 (8): 49–75.Google Scholar
  24. Nilsson, N.-A. 1963. Interaction between trout and charr in Scandinavia. Trans. Amer. Fish. Soc. 92: 276–285.CrossRefGoogle Scholar
  25. Ranta-aho, K. 1983. Juvenile biology and ecology of Arctic charrSalvelinus alpinus in Lake Myvatn. B.Sc. Thesis, University of Iceland, Reykjavik. 56 pp. (In Swedish).Google Scholar
  26. Rudstam, L.G., C.S. Clay & J.J. Magnuson. 1987. Density and size estimates of cisco (Coregonus artedii) using analysis of echo peak PDF from a single transducer sonar. Can. J. Fish. Aquat. Sci. 44: 811–821.Google Scholar
  27. Saltveit, S.J. & J.-O. Styrvold. 1984. Density of juvenile Atlantic salmon (Salmo salar L.) and brown trout (Salmo trutta L.) in two Norwegian regulated rivers. pp. 309–319. In: A. Lillehammer & S.J. Saltveit (ed.) Regulated Rivers, Univeritets-forlaget, Oslo.Google Scholar
  28. Sandlund, O.T, B. Jónsson, H.J. Malmquist, R. Gydemo, T. Lindem, S. Skúlason, S.S. Snorrason & P.M. Jónasson. 1987. Habitat use of arctic charrSalvelinus alpinus in Thingvallavatn, Iceland. Env. Biol. Fish. 20: 263–274.Google Scholar
  29. Seber, G.A.F. & E.D. LeCren. 1967. Estimating population parameters from catches large relative to the population. J. Anim. Ecol. 36: 631–643.CrossRefGoogle Scholar
  30. Siegel, S. 1956. Nonparametric statistics for the behavioral sciences. McGraw-Hill, New York. 312 pp.Google Scholar
  31. Skúlason, S. 1986. Embryo size and early head shape in four sympatric morphs of Arctic charr (Salvelinus alpinus) in Thingvallavatn, Iceland. M. Sc. Thesis, University of Guelph, Guelph. 105 pp.Google Scholar
  32. Snedecor, G.W. & W.G. Cochran. 1967. Statistical methods. Sixth edition. Iowa State University Press, Ames. 593 pp.Google Scholar
  33. Snorrason, S. S. 1982. The littoral ecosystem and the ecology ofLymnaea peregra in Lake Thingvallavatn, Iceland. Ph.D. Thesis, University of Liverpool,. Liverpool. 429 pp.Google Scholar
  34. Svärdson, G. 1976. Interspecific population dominance in fish communities of Scandinavian lakes. Rep. Inst. Freshwat. Res. Drottningholm 55: 144–171.Google Scholar
  35. Windell, J.T. & S.H. Bowen. 1978. Methods for study of fish diets based on analysis of stomach contents. pp. 219–226. In: T. Bagenal (ed.) Methods for Assessment of Fish Production in Fresh Waters, IBP Handbook no 3, Blackwell Sci. Publ., Oxford.Google Scholar

Copyright information

© Kluwer Academic Publishers 1988

Authors and Affiliations

  • Odd Terje Sandlund
    • 1
  • Hilmar J. Malmquist
    • 2
  • Bror Jonsson
    • 3
  • Skúli Skúlason
    • 4
  • Sigurdur S. Snorrason
    • 4
  • Pétur M. Jónasson
    • 2
  • Rolf Gydemo
    • 5
  • Torfinn Lindem
    • 6
  1. 1.Norwegian Society for Rural DevelopmentSkjettenNorway
  2. 2.Freshwater Biological LaboratoryUniversity of CopenhagenHelsingørsgade 51Denmark
  3. 3.Directorate for Nature Management, Fish Research DivisionTungasletta 2Norway
  4. 4.Institute of BiologyUniversity of IcelandGrensásvegur 12Iceland
  5. 5.Institute of Freshwater ResearchDrottningholmSweden
  6. 6.Institute of PhysicsUniversity of OsloBlindernNorway

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