The discrimination of the response pattern of inter-phylum phytoplankton diversity to long-term eutrophication trends in Lake Kasumigaura, Japan
Keywords:
ecological indexes, Similarity indexAbstract
To study the response pattern of phytoplankton to eutrophication, the long-term water chemistry and biological data spanning three phytoplankton phyla and 19 genera were investigated in Lake Kasumigaura, a eutrophic lake in Japan. Fisher' s linear discrimination functions in combination with ecological indexes and a similarity index were used to analyze the relationship between the eutrophic levels (representing with dissolved inorganic nitrogen and total dissolved phosphorus) and the response of the inter-phylum phytoplankton diversity. The algal similarity index was found to characterize the change of eutrophication levels well. Almost 80 percent of eutrophic lake water samples can be correctly discriminated based on the logarithmic cells of phytoplankton genera. However, the ecological indices (number of genera, Margalef' s index, Menhinick' s index, McNaughton' s index, as well as the Shannon' s index and evenness index) failed to predict the change of eutrophic state.
References
Bougis, P. 1979. Marine Plankton Ecology, Amsterdam: North-Holland Publishing Co..
Burmaster, D. 1979. The continuous culture of phytoplankton :Mathematical equivalence among three steady state models. Am. Nat., 113: 123–134.
Danilov, R. and Ekelund, N. G. A. 1999. The ef. ciency of seven diversity and one similarity indices based on phytoplankton data for assessing level of eutrophication in lakes in central Sweden. Sci. Total Environ., 234: 15–23.
Dokulil, M., Chen, W. and Cai, Q. 2000. Anthropogeni c impacts to large lakes in China: the Tai Hu example. Aquat. Ecosyst. Health Manage., 3: 81–94.
Forsberg, C. and Ryding, S. O. 1980. Eutrophication parameters and trophic state indices in 30 Swedish waste receiving lakes. Arch. Hydrobiol., 89: 189–207.
Fujimoto, N., Ryuichi, S., Sugiura, N. and Inamori, Y. 1997. Nutrientlimited growth ofMicrocystis aeruginosa and Phormidium tenue and competition under various N:P supply ratios and temperatures. Limno. Oceanogr., 2: 250–256.
Grover, J. P. 1989. Phosphorous-dependen t growth kinetics of 11 species of freshwater algae. Limnol. Oceanogr., 34: 341–348.
Jrgensen, S. E. 1988. Use of models as experimenta l tool to show that structural changes are accompanied by increased exergy. Ecol. Model., 41: 117–126.
Kitsiou, D. and Karydis, M. 2000. Categorical mapping of marine eutrophication based on ecological indices. Sci. Total Environ., 255: 113–127.
Krientiz, L., Kasprzak, P. and Koschel, R. 1996. Long term study on the in uence of eutrophication, restoration and biomanipulation on the structure and development of phytoplankton communities in Feldberger Haussee (Baltic Lake District, Germany). Hydrobiologia, 330: 89–110.
Lobo, E. A., Katoh, K. and Aruga, Y. 1995. Response of epilithis Diatom community to water pollution in rivers in the Tokyo metropolitan area. Jpn. Freshwater Biol., 34: 191–204.
Peterson, H. G., Healey, F. P. and Wagemann, R. 1984. Metal toxicity to algae: A highly pH dependent phenomenon. Can. J. Fish. Aquat. Sci., 41: 974–979.
Reynolds, C. S. 1980. Phytoplankton communities and their periodicity in stratifying lake systems. Hol. Ecol., 3: 141–159.
Seki, H. 1982. Organic Materials in Aquatic Ecosystems, Boca Raton, Florida: CRC Press, Inc..
Sterner, R. W. and Grover, J. P. 1998. Algal growth in warm temperate reservoirs: Kinetic examination of nitrogen, temperature, light, and other nutrients. Wat. Res., 32: 3539–3548.
Sugiura, N. and Sudo, R. Monthly change of phytoplankto n in Lake Kasumigaura. 12th Symposium of the Study onWater Quality Contamination in Lake Kasumigaura. pp.73–77. Tokyo: Jap. Society on Water Pollution Research.
Takamura, N., Otsuki, A., Aizaki, M. and Nojiri, Y. 1992. Phytoplankton species shift accompanied by transition fromnitrogen dependence to phosphoru s dependenc e of primary production in Lake Kasumigaura. Jpn. Arch. Hydrobiol ., 2: 129–148.
Tilman, D., Kilham, S. S. and Kilham, P. 1982. Phytoplankton community ecology: the role of limiting nutrients. Annu. Rev. Eco. Syst., 13: 349–372.
Washington, H. G. 1984. Diversity, Biotic and Similarity indices. Wat. Res., 18: 653–694.
Wei, B., Sugiura, N. and Maekawa, T. 2000. Evaluation of trophic state of eutrophicated lake and biological responses from algal interphylum level. Environ. Technol., 21: 1047–1055.
Wei, B., Sugiura, N. and Maekawa, T. 2001. Use of arti. cial neural network in the prediction of algal blooms. Wat. Res., 35: 2022–2028.
Published
Issue
Section
License
Manuscripts must be original. They must not be published or be under consideration for publication elsewhere, in whole or in part. It is required that the lead author of accepted papers complete and sign the MSU Press AEHM Author Publishing Agreement and provide it to the publisher upon acceptance.
