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Phytoplankton

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Phytoplankton

  1. 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. 2. Phytoplankton roup of minute autotrophic organism loats in the water surface of rivers and lake
  3. 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. 4. ampaloc Lake: utrophic Area • Commercialization • human effluents • illegal fish pens • crowded fish cages SAMPALOC LAKE
  5. 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. 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. 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. 8. Temperature and pH Dissolved Oxygen Transparency
  9. 9. Vertical Hauling Horizontal Hauling
  10. 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. 11. Plankton Net Haemocytometer
  12. 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. 13. ESULTS ND
  14. 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. 15. DIVISION CHLOROPHYTA Spirogyra sp. Stigeoclonium sp. Staurastrum sp. Green Algae 1 Pediastrum sp. Protoccoccus sp.
  16. 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. 17. DIVISION CYANOPHYTA
  18. 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. 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. 20. Melosira sp. Cyclotella sp.
  21. 21. Figure.3 Distribution of the major phytoplankton taxa in Sampaloc Lake (November 2010).
  22. 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. 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. 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.

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