Abstract
The results reported here are part of a joint study on possible ecological effects in the delta area of Lake Randsfjorden, Southern Norway, caused by a reduction in water flow as a result of hydroelectric power development.
From 1988 to 1990 the mean daily water flow decreased sharply and the total load of suspended matter was greatly reduced. During the same period there was an increase in oligochaete abundance from 6,096 ind. m-2 in 1988 to 100,051 ind. m-2 in 1989 and 154,345 ind. m-2 in 1990.
Piguetiella blanci was the dominant species in 1988 making up 48.5% of the total community. In 1989, Limnodrilus hoffmeisteri, Nais variabilis/Nais communis and enchytraeids were the most abundant oligochaetes, making up 29.3%, 26.1% and 28.2%, respectively of the total number. Reduced water flow from 1988 to 1989 and 1990 caused reduced disturbance of the bottom sediments and is considered the main reason for the change in species composition and abundances.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
Barnes, L. E., 1983. The colonization of ball-clay ponds by macroinvertebrates and macrophytes. Freshwat. Biol. 13: 561–578.
Bogen, J., 1983. Morphology and sedimentology of deltas in fjord and fjord valley lakes. Sediment. Geol. 36: 246–267.
Bogen, J., 1987. Deltaic depositional in a glacier-fed lake: a model for fluvial/lacustrine interface. Soc. Econ. Paliont. Min. Spes. Pub. 39: 121–131.
Bogen, J., 1989. Etna-Dokka sedimenttransport 1988. NVE. VHB-Notat nr. 20/89 (in Norwegian).
Bogen, J., 1990. Etna-Dokka sedimenttransport. NVE. VHB-Notat nr. 21/90 (in Norwegian).
Bogen, J., 1991. Suspensjonstransport i Etna-Dokka 1990. NVE-Notat (in Norwegian).
Griffiths, R. W., 1991. Environmental quality assessment of the St. Clair River as reflected by the distribution of benthic macroinvertebrates in 1985. Hydrobiologia 219: 143–164.
Holtan, H., 1970. Randsfjorden — en limnologisk undersokelse 1967–1968. NIVA 0-15/64 (in Norwegian).
Kennedy, C. R., 1966. The life history of Limnodrilus hoffmeis-teri Clap. (Oligochaeta: Tubificidae) and its adaptive significance. Oikos 17: 158–168.
Learner, M. A., G. Lochhead & B. D. Hughes, 1978. A review of the biology of British Naididae (Oligochaeta) with emphasis on the lotic environment. Freshwat. Biol. 8: 357–375.
Lopez, G. R., 1988. Comparative ecology of the macrofauna of freshwater and marine muds. Limnol. Oceanogr. 33: 946–962.
McCall, P. L. & F. M. Soster, 1990. Benthos response to disturbance in western Lake Erie: regional faunal surveys. Can. J. Fish. aquat. Sci. 47: 1996–2009.
McCall, P. L. & M. J. S. Tevesz, 1982. The effects of benthos on physical properties of freshwater sediments. In P. L. McCall & M. J. S. Tevesz (eds), Animal-sediment relations. The biogenic alteration of sediments. Plenum Press, New York: 105–176.
Pianka, E. R., 1970. On r-and K-selection. Am. Nat. 104: 592–597.
Särkkä, J., 1987. The occurrence of oligochaetes in lake chains receiving pulp mill waste and their relation to eutrophica-tion on the trophic scale. Hydrobiologia 155: 259–266.
Soster, F. M. & P. L. McCall, 1990. Benthos response to disturbance in western Lake Erie: field experiments. Can. J. Fish. aquat. Sci. 47: 1970–1985.
Sousa, W. P., 1984. The role of disturbance in natural communities. Ann. Rev. Ecol. Syst. 15: 353–391.
Tevesz, M. J. S., 1985. Benthic colonization in fresh water. Kirtlandia 41: 3–14.
Voshell, Jr., J. R. & G. M. Simmons, Jr., 1984. Colonization and succession of benthic macroinvertebrates in a new reservoir. Hydrobiologia 112: 27–39.
Wachs, B., 1967. Die Oligochaeten — Fauna der Fliessgewässer unter besonderer Berücksichtigung der Beziehungen zwischen der Tubificide Bessiedlung und dem Substrat. Arch. Hydrobiol. 63: 310–386.
Wiens, J. A., 1984. On understanding a non-equilibrium world: myth and reality in community patterns and processes. In D. R. Strong, Jr., D. Simberlof, L. G. Abele & A. B. Thistle (eds), Ecological communities: conceptual issues and the evidence. Princeton University Press, Princeton: 439–457.
Author information
Authors and Affiliations
Editor information
Rights and permissions
Copyright information
© 1994 Springer Science+Business Media Dordrecht
About this paper
Cite this paper
Sloreid, SE. (1994). Oligochaete response to changes in water flow in the Dokka Delta, Lake Randsfjorden (Norway), caused by hydroelectric power development. In: Reynoldson, T.B., Coates, K.A. (eds) Aquatic Oligochaete Biology V. Developments in Hydrobiology, vol 95. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-0842-3_27
Download citation
DOI: https://doi.org/10.1007/978-94-011-0842-3_27
Publisher Name: Springer, Dordrecht
Print ISBN: 978-94-010-4363-2
Online ISBN: 978-94-011-0842-3
eBook Packages: Springer Book Archive