Powerpoint presentation about phytoplankton

1. COMMUNITY STRUCTURE OF PHYTOPLANKTON IN
SAMPALOC LAKE,
SAN PABLO CITY, LAGUNA
HAIZEL ANNE T. DE ASIS AND JAHZEEL ZUBIAGA
DEPARTMENT OF BIOLOGY
POLYTECHNIC UNIVERSITY OF THE PHILIPPINES

2. Phytoplankton
roup of minute autotrophic
organism
loats in the water surface of
rivers and lake

3. rowth of Phytoplankton is affected by
Eutrophication
Allow algae bloom on the surface
Low dissolved oxygen in bottom waters
death of oxygen-dependent organism
Fish and invertebrate mortality
(Round, 1981)
Phytoplankton

4. ampaloc Lake:
utrophic Area
• Commercialization
• human effluents
• illegal fish pens
• crowded fish cages
SAMPALOC LAKE

5. educing Fish cages
 characterization of the phytoplankton
community be done in Sampaloc Lake
determine the trophic status of the lake’s
water by identifying indicator species
present in the study site.
STATEMENT OF THE PROBLEM

6. e determined the structural diversity of the
phytoplankton in Sampaloc Lake Laguna
correlate the diversity of phytoplankton with existing
environmental factors
identified and classified the phytoplankton present
compare the phytoplankton diversity in each designated
OBJECTIVES OF THE STUDY

7. Station
Physico – chemical
Parameters
Biological Parameters
Horizontal Hauling-Littoral Zone
Vertical Hauling-Limnetic ZonepH
Tur
b
T° DO
Correlation Analysis
Preservation
Concentration
Identification Counting
Diversity Indices
(Dominance, Abundance, Shannon,
Simpson , Evenness and Richness)
Methodology

8. Temperature and pH
Dissolved Oxygen
Transparency

9. Vertical Hauling
Horizontal Hauling

10. Station
Physico – chemical
Parameters
Biological Parameters
Horizontal Hauling-Littoral Zone
Vertical Hauling-Limnetic ZonepH
Tur
b
T° DO
Correlation Analysis
Preservation
Concentration
Identification Counting
Diversity Indices
(Dominance, Abundance, Shannon,
Simpson , Evenness and Richness)
Methodology

11. Plankton Net
Haemocytometer

12. Station
Physico – chemical
Parameters
Biological Parameters
Horizontal Hauling-Littoral Zone
Vertical Hauling-Limnetic ZonepH
Tur
b
T° DO
Correlation Analysis
Preservation
Concentration
Identification Counting
Diversity Indices
(Dominance, Abundance, Shannon,
Simpson, Evenness and Richness)
Methodology

13. ESULTS
ND

14. values are reported as mean ± Standard Error (s/√n)
*values with the same letters are not significantly different at α= 0.05
Table 1. Physico-chemical Parameters of Sampaloc Lake (November 2010).
Parameters Station Average
1 2 3 4 5
Temperature (0
C) 28.23±0.04 a
27.82±0.03a
27.61±0.02a
25.86±1.11a
27.14±0.02a
27.33±0.24
pH 8.35±0.05abc
8.32±0.05abc
8.36±0.03ac
8.43±0.05b
8.27±0.09c
8.35±0.05
Transparency(in.) 28.50±1.32ab
38.58±5.30a
34.72±7.50a
30.02±7.59a
20.08±0.19b
30.38±0.57
DO(mg/L) 8.75±0.05a
9.06±0.02ab
9.32±0.02ab
10.22±.08b
9.29±0.05a
9.33±0.04

15. DIVISION CHLOROPHYTA
Spirogyra sp.
Stigeoclonium sp.
Staurastrum sp. Green Algae 1
Pediastrum sp. Protoccoccus sp.

16. DIVISION BACILLARIOPHYTA
Amphora sp. Berkeleya sp. Cyclotella sp. Coscinodiscus sp. Thallossiosira sp.
Pinnularia sp.Odontella sp.Nitzchia sp.Navicula sp.Melosira sp.Mastoglia sp.

17. DIVISION CYANOPHYTA

18. COMPOSITION OF PHYTOPLANKTON
COMMUNITY
he algal composition of Sampaloc Lake was represented by three major groups
namely:
• Bacillariophyta (diatom)
• Chlorophyta (green-algae) and
• Cyanophyta (blue-green algae)
which comprises twenty (20) taxa. The genera were distributed into 6
genera of green algae, 11 genera of diatoms and 3 genera of blue-green algae.

19. Taxa Abundance Mean RA(%)
Rf (%)1 2 3 4 5
Chlorophyta
1. Pediastrum sp. 76 0 0 0 116 131.20 0.180126253 40
2. Protoccocus sp. 0 0 0 139 0 139.00 0.190834979 20
3. Spirogyra sp. 182 8 0 0 0 44.40 0.06095736 40
4. Stigeoclonium sp.
5. Staurastrum sp.
6. Green algae 1
0
0
8
369
0
0
0
58
0
0
0
0
0
0
0
369.00
58.00
1.60
0.506605087
0.079628984
0.002196662
20
20
20
Bacillariophyta
7. Amphora sp. 0 0 0 0 152 152.00 0.208682854 20
8. Berkeleya sp. 0 0 0 0 3 3.00 0.004118741 20
9. Cosinodiscus sp. 3 0 1768 0 0 1768.60 2.428134842 40
10. Cyclotella sp. 245 240 104 328 53 774.00 1.06263506 100
11. Mastoglia sp. 0 0 0 0 18 18.00 0.024712443 20
12. Melosira sp. 2326 1374 859 902 12104 15704.20 21.56050842 100
13. Navicula sp. 48 0 33 5 0 47.60 0.065350683 60
14. Pinnularia sp. 3 0 0 0 0 0.60 0.000823748 20
15. Odontela sp. 0 0 0 0 1152 1152.00 1.581596369 20
16. Nitzcha sp. 35 10 13 0 73 103.00 0.141410092 80
17. Thalossiosira sp. 0 96 0 0 0 96.00 0.131799697 20
Cyanophyta
18. Lyngbya sp. 0 0 0 0 1323 1323.00 1.81636458 20
19. Oscillatoria sp. 533 78 0 0 0 184.60 0.253439835 40
20. Merismopedia sp. 0 116 46510 0 4242 50868.00 69.83736467 60
72937.8
Table 2. Community comparison of phytoplankton in different station.

20. Melosira sp.
Cyclotella sp.

21. Figure.3 Distribution of the major phytoplankton taxa in
Sampaloc Lake (November 2010).

22.
(S) (d) (H’) (1-D) (E) (D)
1 10 0.048 a
1.113 a
0.516 a
0.305 a
1.104 a
2 8 0.398 a
1.302 a
0.601 a
0.409 a
1.033 a
3 7 0.890 a
0.274 a
0.110 a
0.188 a
0.555 a
4 4 0.498 a
0.871 a
0.502 a
0.597 a
0.415 a
5 9 0.453 a
1.092 a
0.547 a
0.298 a
0.912 a
Average 20 0.534 0.973 0.446 0.132 1.680
Station Diversity Indices
*values are reported as mean ± Standard Error (s/√n)
*values with the same letters are not significantly different at α= 0.05
Table 3. Community Characteristics of Phytoplankton in Sampaloc Lake (November, 2011)
Characterization of Phytoplankton Community

23. SUMMARY, CONCLUSION AND
RECOMMENDATION
Based on the results the following conclusions were figure out:
•the phytoplankton community in Sampaloc Lake was distributed
to 3 major groups namely Division Chlorophyta, Bacillariophyta
and Cyanophyta ;
•a total of 20 taxa were present in Sampaloc Lake and
dominated by Melosira sp. and
•Sampaloc Lake is exhibiting eutrophic condition based on the
presence of bioindicator groups.

24. Upon completion of the study, the following are
recommended:
•the trophic state of Sampaloc Lake be verified
using other chemical analyses ;
•continuous monitoring of the lake be done to
improve the trophic condition of the lake and
•use SEM (scanning electron microscope) in
identification of the phytoplankton at species level.