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Limnology of the Klutlan Moraines, Yukon Territory, Canada☆

Published online by Cambridge University Press:  20 January 2017

M. C. Whiteside ,
J. Platt Bradbury  and
S. J. Tarapchak
M. C. Whiteside
Affiliation:
Department of Zoology, University of Tennessee, Knoxville, Tennessee 37916 USA
J. Platt Bradbury
Affiliation:
U.S. Geological Survey, Denver Federal Center, Denver, Colorado 80225 USA
S. J. Tarapchak
Affiliation:
Great Lakes Environmental Research Laboratory, National Oceanic and Atmospheric Administration, Ann Arbor, Michigan 48104 USA
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Abstract

Lakes of the Klutlan moraines originate by down-melting of stagnant ice under a mantle of rock debris and vegetation ranging from scattered herbs and shrubs on the younger moraines to multiple-generation closed spruce forest on the oldest moraines, which are 600–1200 yr old. Lakes on the youngest moraines are temporary, turbid with glacial silt, and marked by unstable ice-cored slopes. On older moraines most lakes have clear water and stable slopes. On the oldest moraines many lakes have brown water caused by dissolved humic materials derived from the thick forest floor, but even here some slopes are unstable because of continued melting of buried ice. Morainic lakes contain bicarbonate waters of moderate alkalinity and conductivity and low levels of nutrients. The highly diverse phytoplankton is dominated by chrysophytes and cryptomonads, with few diatoms. Extremely low values for phytoplankton biomass place most of the lakes in an “ultraoligotrophic” category. Zooplankton is dominated by copepods, which were found even in ice ponds only a few years old, and by the cladoceran Daphnia pulex. Surface-sediment samples contained a total of 16 species of chydorid Cladocera. Of these, Alonella excisa and Alona barbulata are apparently the pioneer species in the youngest lakes. Chydorus sphaericus only appears in lakes of the oldest moraines. A successional pattern is not conspicuous, however, partly because some of the lakes on the older moraines originated by recent collapse over buried ice. Lakes on the upland outside the dead-ice moraines yielded 39 species in the zooplankton. The distinctive assemblage on upland lakes may relate more to different water chemistry than to age.

Type
Articles
Information
Quaternary Research , Volume 14 , Issue 1 , July 1980 , pp. 130 - 148
Copyright
University of Washington

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Footnotes

☆

Contribution 205, Limnological Research Center, University of Minnesota, Minneapolis, Minn. 55455.

References

Anderson, R.S. Crustacean plankton of 146 alpine and subalpine lakes and ponds in western Canada. Fisheries Research Board of Canada Journal 28 1971 311-321 Google Scholar
Birks, H.J.B. The present flora and vegetation of the moraines of the Klutlan Glacier, Yukon Territory, Canada: a study in plant succession. Quaternary Research 14 1980 60-86 Google Scholar
DeCosta, J.J. Latitudinal distribution of chydorid Cladocera in the Mississippi Valley based on their remains in surficial lake sediments. Investigations of Indiana Lakes and Streams 6 1964 65-101 Google Scholar
Driscoll, F.G. Jr. Formation of the Neoglacial surge moraines of the Klutlan Glacier, Yukon Territory, Canada. Quaternary Research 14 1980 19-30 Google Scholar
Driscoll, F.G. Jr. Wastage of the Klutlan ice-cored moraines, Yukon Territory, Canada. Quaternary Research 14 1980 31-49 CrossRefGoogle Scholar
Florin, Maj-Britt Wright, H.E. Jr. Diatom evidence for the persistence of stagnant glacial ice in Minnesota. Geological Society of America Bulletin 80 1969 695-704 Google Scholar
Frey, D.G. The ecological significance of Cladoceran remains in lake sediments. Ecology 41 1960 785-790 Google Scholar
Hilliard, D.K. Studies on Chrysophyceae from some ponds and lakes in Alaska. II. Notes on the Genera Dinobron, Hyalobryon, and Epipyxis with descriptions of new species. Hydrobiologia 22 1963 331-397 Google Scholar
Hilliard, D.K. Studies on Chrysophyceae from some ponds and lakes in Alaska. V. Hydrobiologia 28 1966 553-576 Google Scholar
Hobbie, J.E. Arctic limnology: A review Alaskan Arctic Tundra Britton, M.E. Arctic Institute of North America, Technical Paper Vol. 25 1973 127-268 Google Scholar
Huber-Pestalozzi, G. Binnengewässer Bd. 16 1938 E. Schweizerbart'sche Verlagsbuchhandlung Stuttgart Das Phytoplankton des Susswässers. Teil 1. Algemeiner Teil. Blaualgan, Bakterien, Pilze Google Scholar
Huber-Pestalozzi, G. Chrysophyceen, farblosa Flagellaten, Heterokonten 1941 E. Schweizerbart'sche Verlagsbuchhandlung Stuttgart Teil 2: 1 Google Scholar
Huber-Pestalozzi, G. Cryptophyceen, Chloromonadinen, Peridineen 1950 E. Schweizerbart'sche Verlagsbuchhandlung Stuttgart Teil 3 Google Scholar
Kalff, J. Kling, H.J. Holmgren, S.H. Welch, H.H. Phytoplankton, phytoplankton growth and biomass cycles in an unpolluted and in a polluted polar lake. Internationale Vereinigung für Theoretische und Angewandte Limnologie, Verhandlungen 19 1975 487-495 Google Scholar
Kling, H.J. Holmgren, S.K. Species Composition and Seasonal Distribution in the Experimental Lakes Area, Northwestern Ontario Vol. 337 1972 Fisheries Research Board of Canada Technical Report Google Scholar
McNaught, D.C. A hypothesis to explain the succession from calanoids to cladocerans during eutrophication. Internationale Vereinigung für Theoretische und Angewandte Limnologie, Verhandlungen 19 1975 724-731 Google Scholar
Prescott, G.W. Revised ed. Algae of the Western Great Lakes Area 1962 Brown Dubuque, Iowa Google Scholar
Rampton, V. Neoglacial fluctuations of the Natazhat and Klutlan glaciers, Yukon Territory, Canada. Canadian Journal of Earth Sciences 7 1970 1236-1263 Google Scholar
Schindler, D.W. Kalff, J. Welch, H.H. Brunskill, G.J. Kling, H. Kritsch, N. Eutrophication in the High Arctic—Meretta Lake, Cornwallis Island (75°N, Lat.). Fisheries Research Board of Canada, Journal 31 1974 647-662 CrossRefGoogle Scholar
Skuja, H.L. Taxonomie des Phytoplanktons einiger Seen in Uppland, Schweden. Symbolae Botanicae Upsaliensis 9 1948 Google Scholar
Skuja, H.L. Taxonomische und biologische Studien über das Phytoplankton schwedischer Binnengewässer. Vetenskaps-societeten i Upsala. Nova Acta Regiae Societatis Scientiarum Upsaliensis 6 1956 Ser. IV Google Scholar
Skuja, H.L. Grundzüge der Algenflora und Algenvegetation des Fjelgegendeum Abisko. 1. Vetenskaps-societeten i Upsala. Nova Acta Regiae Societatis Scientiarum Upsaliensis 18 1964 Ser. IV Google Scholar
Smith, G.M. Phytoplankton of the inland lakes of Wisconsin. Wisconsin Geological and Natural History Survey 1924 1-227 Bulletin 57 Google Scholar
Tarapchak, S.J. Studies on Phytoplankton Distribution and Indicators of Trophic State in Minnesota Lakes. Ph.D. thesis 1973 University of Minnesota Google Scholar
Vollenweider, R.W. Scientific Fundamentals of the eutrophication of Lakes and Flowing Waters, with Particular Reference to Nitroen and Phosphorus as Factors in Eutrophication 1968 Organization for Economic Co-operation and Development Paris Google Scholar
Whiteside, M.C. Danish chydorid Cladocera: modern ecology and core studies. Ecological Monographs 40 1970 79-118 CrossRefGoogle Scholar