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DISTRIBUTION OF PLANKTON IN THE COINTZIO DAM, MICHOACÁN, MÉXICO. REYNA ALVARADO VILLANUEVA y MARIA DEL ROSARIO ORTEGA MURILLO Laboratorio de Biología Acuática.

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Presentation on theme: "DISTRIBUTION OF PLANKTON IN THE COINTZIO DAM, MICHOACÁN, MÉXICO. REYNA ALVARADO VILLANUEVA y MARIA DEL ROSARIO ORTEGA MURILLO Laboratorio de Biología Acuática."— Presentation transcript:

1 DISTRIBUTION OF PLANKTON IN THE COINTZIO DAM, MICHOACÁN, MÉXICO. REYNA ALVARADO VILLANUEVA y MARIA DEL ROSARIO ORTEGA MURILLO Laboratorio de Biología Acuática

2 Cointzio Dam Most important reservoir of drinking water for the city of Morelia Problems: Fine material Deforestation Decreased water quality

3 Knowing the distribution of plankton in the reservoir Objective

4 P27Sup.1m2m5m10m15m20mFondo P6Sup.1m2m5m10mFondo Collection sites Analyzed levels

5 Collection and analysis of biological material 4% formaldehyde neutralized with borax

6 RESULTS

7 P27 april 2009 P6 april 2009 Ochromonas ostreaeformis Trachelomonas abrupta Org/ml

8 P27 june 2009 P6 june 2009 Trachelomonas abruptaOchromonas ostreaeformis

9 P27 october 2009 P6 october 2009 Microcystis aeruginosa

10 P27 december 2009 P6 december 2009 Cyclotella meneghiniana Aulacoseira granulata

11 P27 january 2010 P6 january 2010 Euglena proxima, Trachelomonas hispida Aulacoseira granulata Melosira varians Cyclotella meneghiniana Closterium acutum Microcystis aeruginosa Trachelomonas hispida Aulacoseira granulata Cyclotella meneghiniana Synedra rumpens Stephanodiscus niagarae Org/ml

12 P27 july 2010 P6 july 2010 Ochromonas ostreaeformis Cyclotella meneghiniana Chlamydomonas globosa Ochromonas ostreaeformis Cyclotella meneghiniana Chlamydomonas globosa Dictyosphaerium pulchelum Org/ml

13 p 27 p3p3 p6p6 p47 p 37 Horizontal distribution

14 P27. july 2009 P6. july 2009 Tintinnus lohmanni protozoarotifers cladocerans copepods

15 P27 september 2009 P6 september 2009 Poliarthra vulgaris protozoa rotifers cladocerans

16 CONCLUSIONS There are changes in horizontal and vertical distribution of plankton due the high organic material in the dam. The presence of eutrophication indicator species such as Ochromonas ostreaeformis, Microcystis aeruginosa, Poliarthra vulgaris and Keratella cochlearis are typical of these alterado environment. It is necessary to develop water treatment practice in the upper zones of the basin in order to decrease the organic matter that income in the dam.

17 Natasha Antonio Rosario y Rubén Hugo Norma Nicolas y Julien Acknowledgements

18 Thanks


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