Abstract
Data on Secchi disk transparency in Lake Ladoga, the largest lake in Europe, collected between 1905 and 2003, were used to detect climatic (interannual) trends for lake regions with various depths. The seasonal variations in Secchi depth (D s) during the ice-free period both for limnetic regions with large differences in bathymetric characteristics and for the whole lake were estimated by more than 7000 transparency measurements. The two-dimensional data sets have a spatial resolution of approximately 20 km and are geo-referenced by latitude and longitude in Lake Ladoga. Monthly mean spatial transparency distributions and their variances were calculated from May to October. The spatial distributions of the transparency for each month are discussed within the context of lake bathymetric patterns. The maximum values of Secchi depth (more than 4 m) occur during May and October in deep regions. Both the minimum mean value of water transparency and minimum horizontal gradients of D s for the lake occur in August. The regions with significant interannual (climatic) decreasing trends of D s have been identified. These areas increase in summertime and cover approximately half the lake area. In spring and autumn the areas decrease and occur in the southern near-shore regions. The mean downward climatic trend of water transparency in Lake Ladoga is 0.02 m/year.
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
Francis, J. C., M. A. Poirrier, D. E. Barbe, V. Wijesundera & M. M. Mulino, 1994. Historic trends in the Secchi disk transparency of Lake Pontchartrain. Gulf Research Reports 9: 1–16.
Hvorov, G. V. & G. N. Utin (eds), 2002. Atlas of Lake Ladoga. Limnology Institute of the Russian Academy of Science, Saint-Petersburg. (In Russian).
Lathrop, R. C., S. R. Carpenter & D. M. Robertson, 1999. Summer water clarity responses to phosphorus, Daphnia grazing, and internal mixing in Lake Mendota. Limnology and Oceanography 44: 137–146.
Molchanov, N. V., 1945. Ladozhskoe ozero. Hydrometeoizdat Publishing House, Leningrad-Moscow. 557 pp. (Lake Ladoga. In Russian).
Naumenko, M. A., 1994. Some aspects of large lakes thermal regime (Ladoga, Onega). Water Pollution Research Journal of Canada 29: 423–439.
Naumenko, M.A., 1995. Novoe opredelenie morfometricheskikh khararteristik Ladozhskogo ozera. Reports of the Academy of Sciences 345: 514–517. (New estimation of Lake Ladoga morphometrical characteristics. In Russian).
Naumenko, M. A., S. G. Karetnikov & A. I. Tikhomirov, 1996. Main features of the thermal regime of Lake Ladoga during ice-free period. Hydrobiologia 322: 69–73.
Naumenko, M. A. & S. G. Karetnikov, 2002. Sezonnaya evolutsiya prostranstvennogo raspredeleniya temperaturi poverkhnosti Ladozhskogo ozera v svyazi s ego morfometriei. Reports of the Academy of Sciences 386: 250–253. (Seasonal evolution of spatial distribution of temperature of Lake Ladoga surface water in connection with its morphometry. In Russian).
Petrov, B. M., 1967. Prozrachnost i tsvet vody Ladozhskogo ozera. In Alekin, O. A. (ed.), Gidrokhimiya i gidrooptika Ladozhskogo ozera. Nauka Publishing House, Leningrad: 156–216. (Transparency and colour of water of Lake Ladoga. In Russian).
Petrova, N. (ed.), 1982. Antropogennoe evtrofirovanie Ladozhskogo ozera. Nauka Publishing House, Leningrad. (Anthropogenic eutrophication of Lake Ladoga. In Russian).
Preisendorfer, R. W., 1986. Secchi disk science: visual optics of natural waters. Limnology and Oceanography 31: 909–926.
Siver, P. A., R. W. Canavan IV, C. K. Field, L. J. Marsicano & A.-M. Lott, 1996. Historical changes in Connecticut Lakes over a 55 year period. Journal of Environmental Quality 25: 334–345.
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2007 Springer Science+Business Media B.V.
About this chapter
Cite this chapter
Naumenko, M.A. (2007). Seasonality and trends in the Secchi disk transparency of Lake Ladoga. In: Nõges, T., et al. European Large Lakes Ecosystem changes and their ecological and socioeconomic impacts. Developments in Hydrobiology, vol 199. Springer, Dordrecht. https://doi.org/10.1007/978-1-4020-8379-2_7
Download citation
DOI: https://doi.org/10.1007/978-1-4020-8379-2_7
Publisher Name: Springer, Dordrecht
Print ISBN: 978-1-4020-8378-5
Online ISBN: 978-1-4020-8379-2
eBook Packages: Biomedical and Life SciencesBiomedical and Life Sciences (R0)