Lotic ecosystems of Serra do Cipó, southeast Brazil: water quality and a tentative classification based on the benthic macroinvertebrate community
Keywords:
Biodiversity, River classificationAbstract
A general characterization of the water quality of representative rivers of Serra do Cipó, State of Minas Gerais, Brazil is provided as well as the composition and distribution of benthic macroinvertebrates, mainly Plecoptera, Ephemeroptera, Trichoptera and Diptera (Chironomidae). These data are used as a basis to propose a river classification for the area, comprising three major categories: undisturbed waters (Class 1), with no evidence of human influences and showing high taxa richness; waters with intermediate disturbances (Class 2), showing some degree of change in the quality of their trophic resources, due mainly to the influence of human activities (e.g., deforestation, sewage discharges); and disturbed waters (Class 3), showing evidence of eutrophication, although still preserving some diversity of benthic organisms. This proposed classification system, although broad and simple, is believed to provide the necessary basic scientific information to allow for definition of conservation policies in the area, thus contributing to the preservation of rivers and their associated biota.
References
Allan, J.D. 1995. Stream Ecology: Structure and Function of Running Waters, New York: Chapman & Hall.
Banarescu, P. 1990. Zoogeography of Fresh Waters, vol. 1, Wiesbaden: Aula Verl.
Callisto, M. 1997. Larvas bentônicas de Chironomidae (Diptera: Insecta) em quatro ecossistemas lóticos amazônicos sob influência das actividades de uma mineração de bauxita. An. VIII Sem. Reg. Ecol., São Carlos, 8(1): 89–98.
Callisto, M., Esteves, F.A., Gonçalves, J.F. Jr and Fonseca, J.J.L. 1998. Benthic macroinvertebrates as indicators of ecological fragility of small rivers (“igarapés”) in a bauxite mining region of Brazilian Amazonia. Amazoniana, 15(1/2): 1–9.
Callisto, M., Gonçalves, J.F. Jr and Fonseca, J.J.L. 1998. Benthic macroinvertebrates of four Amazonian streams influenced by bauxite mining (Brazil). Verh. Int. Verein. Limnol., 26: 983–985.
Cranston, P.S. 1995. “Morphology”. In The Chironomidae: The Biology and Ecology of Non-biting Midges, Edited by: Armitage, P., Cranston, P.S. and Pinder, L.C.V. 11–28. New York: Chapman & Hall. In:
Epler, J.H. 1995. Identification manual for the larval Chironomidae (Diptera) of Florida, USA: Dept. of Envir. Protection of Florida. Revised edition
Fittkau, E.J., Illies, J., Klinge, H., Schwabe, G.H. and Sioli, H. 1969. Biogeography and Ecology in South America, the Hague: Dr W. Junk N.V. Publishers.
Galdean, N. 1997. Some considerations on the benthic communities of the Upper Tisa river. Trav. Mus. Hist. Nat. “Grigore Antipa”, 37: 255–286.
Golterman, H.L., Clymo, R.S. and Ohnstad, M.A.M. 1978. Methods for Chemical Analysis of Freshwaters, Boston: Blackwell. IBP Handbook 8
Hildrew, A.G. and Giller, P.S. 1995. “Patchiness, species interactions and disturbance in the stream benthos”. In Aquatic Ecology: Scale, Pattern and Process, Edited by: Giller, P.S., Hildrew, A.G. and Raffaelli, D.G. Boston: Blackwell Science. In:
Mackereth, F.J.H., Heron, J. and Talling, J.F. 1978. Water Analysis: Some Revised Methods for Limnologists, Windermere, , UK: Freshwater Biological Association.
Maia-Barbosa, P.M., dos Santos, M.B.L., Rocha, L.A., Menendez, R.M., Cambraia, B.N., Pelli, A. and Barbosa, F.A.R. 2000. “Estudos limnológicos em coleções de água da Serra do Cipó, MG: primeira approximação”. In Serra do Cipó: Ecologia e Evolução, Ateneu, Rio de Janeiro Edited by: Fernandes, G.W. In:
Merritt, R.W. and Cummins, K.W. 1988. An Introduction to the Aquatic Insects of North America, 2nd ed., UK: Kendall/Hunt.
Pescador, M.L. 1997. “General ecology of mayflies: adaptations, reproductive strategies and trophic categories”. In Bioindicadores Ambientales de Calidad de Agua, Edited by: Domingues, E., Pescador, M.L., Alba-Tercedor, J., Rojas, A.M. and Cardoso, M.C.Z. 1–10. Colombia: Universidad del Valle. In:
Pescador, M.L. and Peters, W.L. 1980. Two new genera of cool-adapted Leptophlebiidae (Ephemeroptera) from Southern South America. Ann. Ent. Soc. Am., 73(3): 332–338.
Raffaelli, D.G., Hildrew, A.G. and Giller, P.S. 1995. “Scale, pattern and process in aquatic systems: concluding remarks”. In Aquatic Ecology: Scale, Pattern and Process, Edited by: Giller, P.S., Hildrew, A.G. and Raffaelli, D.G. 601–696. Boston: Blackwell Science. In:
Staicu, G. 1997. Comparative study on phytophilous fauna of some running waters and lakes of Romania. Trav. Mus. Hist. Nat. “Grigore Antipa”, 37: 225–235.
Tundisi, J.G. and Barbosa, F.A.R. 1995. “Conservation of aquatic ecosystems: present status and perspectives”. In Limnology in Brazil, ABC/SBL, Edited by: Tundisi, J.G., Bicudo, C.E.M. and Matsumura-Tundisi, T. 365–371. Rio de Janeiro: Graftex Comunicação Visual. In:
Wiederholm, T., ed. 1983. Chironomidae of the Holartic Region. Keys and Diagnoses. Part 1, 19–19. Larvae: Entomologica Scandinavica.
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