DISTRIBUTION OF PLANKTON IN THE COINTZIO DAM, MICHOACÁN, MÉXICO.

REYNA ALVARADO VILLANUEVA y MARIA DEL ROSARIO ORTEGA MURILLO

Laboratorio de Biología Acuática

Cointzio Dam Cointzio Dam

Most important reservoir of drinking water for the city of Morelia

Problems:Fine material DeforestationDecreased water quality

Knowing the distribution of plankton in the reservoir

Objective

P27 Sup. 1m 2m 5m 10m 15m 20m Fondo

P6 Sup. 1m 2m 5m 10m Fondo

Collection sites

Analyzedlevels

Collection and analysis of biological material

4% formaldehydeneutralized with borax

RESULTS

0

20

40

60

80

100

120

140

160

180

200

220

0 m 1 m 2 m 5 m 10 m 15 m 19 m

Cyanophyta Euglenophyta Bacilliariophyta Chlorophyta

P27 april 2009

-15

5

25

45

65

85

105

125

145

165

185

205

225

245

265

0 m 1 m 2 m 5 m 9 m

Cyanophyta Euglenophyta Pyrrophyta Bacilliariophyta Chlorophyta

P6 april 2009

Ochromonas ostreaeformis

Trachelomonas abrupta

Org/ml Org/ml

P27 june 2009 P6 june 2009

Trachelomonas abruptaOchromonas ostreaeformis

P27 october 2009 P6 october 2009

Microcystis aeruginosa

P27 december 2009 P6 december 2009

Cyclotella meneghiniana

Aulacoseira granulata

Cry

pto

mon

as

ova

ta

Eu

glen

a p

roxi

ma

Tra

chel

om

on

as

ova

ta

Tra

chel

om

on

as

his

pid

a

Tra

chel

om

on

as

volv

oci

na

A.

gran

ula

ta

A.

gran

ula

ta v

. an

gust

issi

ma

Mel

osi

ra v

ari

an

s

Cyc

lote

lla m

eneg

hin

ian

a

Syn

edra

ru

mpen

s

Clo

ster

ium

acu

tum

s up

1m

2m5m

10m15m

20m

0

0.5

1

1.5

2

2.5

3

P27 january 2010

Mic

rocy

stis

aer

ugi

nosa

Cry

pto

mon

as

ova

ta

Eu

glen

a p

roxi

ma

Tra

chel

om

on

as

ova

ta

Tra

chel

om

on

as

his

pid

a

A.

gran

ula

ta

A.

gran

ula

ta v

. an

gust

issi

ma

Mel

osi

ra v

ari

an

s

Cyc

lote

lla m

eneg

hin

ian

a

Syn

edra

ru

mpen

s

Ste

ph

an

odis

cus

nia

gara

e

Nit

zsch

ia p

ale

a

Ph

orm

idiu

m s

p

Coel

ast

rum

mic

roporu

m

s up

2m

10m0

0.5

1

1.5

2

2.5

3

3.5

4

P6 january 2010

Mic

rocy

stis

aer

ugi

nosa

Jagi

nem

a g

emin

atu

m

An

abaen

a c

ilin

dri

ca

Aph

an

izom

enon

flosa

qu

ae

Och

rom

on

as

ost

reaef

orm

is

Tra

chel

om

on

as

his

pid

a

Eu

glen

a o

blo

nga

Lep

oci

ncl

is o

vum

Au

laco

seir

a g

ran

ula

ta

Cyc

lote

lla m

eneg

hin

ian

a

Sta

uro

nei

s ph

oen

icen

tero

n

Gom

ph

on

ema o

liva

ceu

m

Nit

zsch

ia p

ale

a

Nit

zsch

ia a

mph

ibia

Ch

lam

ydom

on

as

globosa

Botr

yoco

ccu

s bra

un

ii

Clo

ster

ium

acu

tum

s up

2m

10m

18m05

10

15

20

25

30

35

40

45

50

s up

1m

2m

5m

10m

15m

18m

Euglena proxima, Trachelomonas hispidaAulacoseira granulataMelosira variansCyclotella meneghinianaClosterium acutum

Microcystis aeruginosa Trachelomonas hispidaAulacoseira granulataCyclotella meneghinianaSynedra rumpensStephanodiscus niagarae

Org/ml

Org/ml

Mic

rocy

stis

aer

ugi

nosa

Jagi

nem

a g

emin

atu

m

An

abaen

a c

ilin

dri

ca

Aph

an

izom

enon

flosa

qu

ae

Och

rom

on

as

ost

reaef

orm

is

Tra

chel

om

on

as

his

pid

a

Eu

glen

a o

blo

nga

Lep

oci

ncl

is o

vum

Au

laco

seir

a g

ran

ula

ta

Cyc

lote

lla m

eneg

hin

ian

a

Sta

uro

nei

s ph

oen

icen

tero

n

Gom

ph

on

ema o

liva

ceu

m

Nit

zsch

ia p

ale

a

Nit

zsch

ia a

mph

ibia

Ch

lam

ydom

on

as

globosa

Botr

yoco

ccu

s bra

un

ii

Clo

ster

ium

acu

tum

s up

2m

10m

18m05

10

15

20

25

30

35

40

45

50

Mic

rocy

stis

aer

ugi

nosa

Jagi

nem

a g

emin

atu

m

Och

rom

on

as

ost

reaef

orm

is

Eu

glen

a o

blo

nga

Lep

oci

ncl

is o

vum

Au

laco

seir

a g

ran

ula

ta

A.

gran

ula

ta v

. an

gust

issi

ma

Cyc

lote

lla m

eneg

hin

ian

a

Rop

halo

dia

gib

ba

Ch

lam

ydom

on

as

globosa

Gole

nk

inia

radia

ta

Clo

ster

ium

acu

tum

Dic

tyosp

haer

ium

pu

lch

ellu

m

sup

2m

10m0

5

10

15

20

25

30

P27 july 2010

P6 july 2010

Mic

rocy

stis

aer

ugi

nosa

Jagi

nem

a g

emin

atu

m

An

abaen

a c

ilin

dri

ca

Aph

an

izom

enon

flosa

qu

ae

Och

rom

on

as

ost

reaef

orm

is

Tra

chel

om

on

as

his

pid

a

Eu

glen

a o

blo

nga

Lep

oci

ncl

is o

vum

Au

laco

seir

a g

ran

ula

ta

Cyc

lote

lla m

eneg

hin

ian

a

Sta

uro

nei

s ph

oen

icen

tero

n

Gom

ph

on

ema o

liva

ceu

m

Nit

zsch

ia p

ale

a

Nit

zsch

ia a

mph

ibia

Ch

lam

ydom

on

as

globosa

Botr

yoco

ccu

s bra

un

ii

Clo

ster

ium

acu

tum

s up

2m

10m

18m05

10

15

20

25

30

35

40

45

50

s up

1m

2m

5m

10m

15m

18m

Ochromonas ostreaeformisCyclotella meneghinianaChlamydomonas globosa

Ochromonas ostreaeformisCyclotella meneghinianaChlamydomonas globosaDictyosphaerium pulchelum

Org/ml

Org/ml

13%

68%

17%2%

16%

62%

3%

14%5%

Cyanophyta Euglenophyta Pyrrophyta

Bacillariophyta Chlorophyta

4%

41%

49%

6%

19%

38%

19%

24%

p27

p3

p6

p47

7%

75%

18%

p37

Horizontal distribution

P27. july 2009

P6. july 2009

Tintinnus lohmanni

protozoa rotifers

cladocerans

cladocerans copepods

copepods

P27 september 2009

P6 september 2009

Poliarthra vulgarisprotozoa

protozoa

rotifers

rotifers cladocerans

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.

Natasha

Antonio

Rosario y Rubén

HugoNorma

Nicolas y Julien

Acknowledgements

Thanks