TH 7 ORAL 17Ullas Naik- RELATIONSHIP BETWEEN … 7/T7_Oral_17_PPT.pdf · SPM= Suspended Particulate...
Transcript of TH 7 ORAL 17Ullas Naik- RELATIONSHIP BETWEEN … 7/T7_Oral_17_PPT.pdf · SPM= Suspended Particulate...
RELATIONSHIP BETWEEN ABUNDANCE OF RELATIONSHIP BETWEEN ABUNDANCE OF MICRO ALGAE AND ECOSYSTEM OF SUNKERI MICRO ALGAE AND ECOSYSTEM OF SUNKERI
BACKWATERS, KARWARBACKWATERS, KARWAR
ULHAS G. NAIKULHAS G. NAIK*, VINOD V. NAYAK# AND N. KUSUMA**, VINOD V. NAYAK# AND N. KUSUMA*
*Department of Marine Biology,*Department of Marine Biology,Karnatak University Post Graduate Centre,Karnatak University Post Graduate Centre,Kodibag, KarwarKodibag, Karwar--581 303, Karnataka, India581 303, Karnataka, India
#Mahasatee Arts, Commerce and Science College, #Mahasatee Arts, Commerce and Science College, Ulga, Karwar, Karnataka, IndiaUlga, Karwar, Karnataka, India
Location of the Study Area in Sunkeri Backwaters River Kali, Karwar
• .
(14o51’28” N and 74o09’08” E)
Hydrographic Parameters
• Temperature
• Salinity
• Dissolved Oxygen
• Hydrogen ion concentration
• Suspended matter
• Vertical Extinction Coefficient (VEC)
• Nutrients: Phosphate-P, Nitrate-N,Nitrite-N and Silicate-
SiO3
ATAT WTWT SAL.SAL. DODO pHpH SPMSPM VECVEC POPO44 NONO33 NONO22 SiOSiO22
PostPostMonsoonMonsoon 28.428.4 26.6326.63 18.818.8 4.754.75 7.837.83 0.0940.094 0.410.41 0.530.53 0.40.4 0.710.71 140.5140.5
PrePreMonsoonMonsoon 30.530.5 27.0827.08 20.920.9 5.175.17 8.18.1 0.1470.147 0.330.33 0.330.33 0.380.38 0.320.32 104.6104.6
SouthwestSouthwestMonsoon.Monsoon. 28.1228.12 26.1426.14 13.6213.62 5.465.46 7.957.95 0.5570.557 0.220.22 0.370.37 0.280.28 0.540.54 219.3219.3
AT= Air Temperature (oC); WT=Water Temperature (oC); SAL=Salinity (psu); DO= Dissolved Oxygen (ml/l); pH=Hydrogen ion concentration;
SPM= Suspended Particulate Matter (g/l); VEC= Vertical Extinction Coefficient (m);PO4= Phosphate-P (µg at/l); NO3=Nitrate (µg at/l); NO2=Nitrite (µg at/l) and
SiO2= Silicate (µg at/l)
Occurrence of Phytoplankton species at different study stations
Phytoplankton Stn I Stn II Stn III
Class: Cyanophyceae
Trichodesmium erythraeum + + -
Class: Chlorophyceae
Cosmarium sp. + + +
Microasterias sp. - + -
Spirogyra sp. - - +
Zygnema sp. + - -
List of Diatom species
Class: Bacillariophyceae
Stn I
Stn II
StnIII
Coscinodiscus sp. + + +
Skeletonema costatum + + +
Hemidiscus sp. + + +
Melosira sp. + + +
Stephanophyxis sp. + - -
Triceratium sp - + +
B. mobiliensis + - +
Biddulphia sp. + + +
B. obtusa + + +
B. sinensis + + +
Guinardia sp. + - -
Bellorochea sp. + - -
Nitzschia sp. + + +
N. seriata + + +
Ditylum sp. + - +
List of Diatom species
Chaetoceros socialis + - +
C. decipiens + + +
C. lorenzianus + + +
C. affinis - + +
Grammatophora sp. + - -
Campylodiscus sp. - + +
Planktoniella sp. + - +
Bacteriastrum sp. + + +
Eucampia sp. + + +
Clamacodium sp. + + +
Streptotheca sp. + + +
Thallossira sp. + + +
T. gravida + + +
Thallassionema sp. - + +
List of Diatom species
Rhizosolenia alata + - -
R. stolterfothii + + -
R. styliformis + + -
R. hebata + + +
R. robusta + + +
R. castracanei - + -
Thalassiothrix sp. + + +
Asterionella sp. + + -
Pleurosigma sp. + + -
Gyrosigma sp. + + +
Navicula sp. + + +
Lithodesmium sp. + + -
List of Dinoflagellate species
Class: Dinophyceae
Stn I
StnII
StnIII
Peridinium depressum
+ + +
Noctiluca miliaris + + -
Pyrocystis fusiformis + - +
Prorocentrum sp. + + -
Dinophysis sp. + - -
Ornithocercus sp. + + -
Ceratium tripos + - +
C. massiliensis + + +
C. furca + - +
C. fusus + + +
• i) Shannon Weiner Index of Species Diversity
H= -Σ {ni log ni}
N N
• ii) Species Richness Index (d) = S-1
Log N
• iii) Evenness Index (e ) = H
Log S
Where ni = number of individuals of each species
N = total number of individuals
S = number of species
Natural logarithm (ln) was used in all the calculations.
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Monthly variation in the Phytoplankton density and species evenness
Monthly variation in Phytoplankton density and Species Richness
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Monthly variation in the species diversity, evenness & richness of Phytoplankton at study station
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Phytoplankton
Sp. Diversity
Sp.Eveness
Sp.Richness
ATAT WTWT SALSAL DODO pHpH SPMSPM VECVEC PO4PO4 NO3NO3 NO2NO2 SiO2SiO2 PPPP
ATAT 11
0.69050.6905**** 0.4277**0.4277** --0.26020.2602 0.18340.1834 --0.18690.1869 0.00340.0034 --0.36710.3671 0.14240.1424 0.07780.0778 --0.39430.3943 0.2597*0.2597*
WTWT 11 0.2647*0.2647* --0.15950.1595 0.2962*0.2962* 0.01030.0103 0.3529**0.3529** --0.42930.4293 --0.04760.0476 0.1960.196 --0.0270.027 0.3462**0.3462**
SALSAL 11 --0.66590.6659 0.16770.1677 --0.75370.7537 0.4888**0.4888** --0.12890.1289 0.17730.1773 --0.21830.2183 --0.73450.7345 0.3549**0.3549**
DODO 11 0.2803*0.2803* 0.8268**0.8268** --0.47050.4705 --0.38420.3842 --0.22570.2257 --0.19640.1964 0.5165**0.5165** 0.2834*0.2834*
pHpH 11 --0.06250.0625 --0.05640.0564 --0.69750.6975 0.18960.1896 --0.32420.3242 --0.29280.2928 0.4056**0.4056**
SMSM 11 --0.460.46 --0.19390.1939 --0.4340.434 --0.04740.0474 0.6117**0.6117** 0.15770.1577
VECVEC 11 0.15790.1579 0.04890.0489 0.4413**0.4413** --0.00950.0095 --0.04960.0496
PO4PO4 11 0.3021*0.3021* 0.5893**0.5893** 0.04740.0474 --0.3910.391
NO3NO3 11 0.3601**0.3601** --0.18090.1809 0.20260.2026
NO2NO2 AT=Air Temperature; WT=Water Temperature; SAL=Salinity; DO=Dissolved Oxygen; pH=Hydrogen ion concentration; AT=Air Temperature; WT=Water Temperature; SAL=Salinity; DO=Dissolved Oxygen; pH=Hydrogen ion concentration; --0.24720.2472
SiO2SiO2 SPM=Suspended Particulate Matter; VEC=Vertical Extinction Coefficient; PO4=PhosphorusSPM=Suspended Particulate Matter; VEC=Vertical Extinction Coefficient; PO4=Phosphorus--P; NO3= NitrateP; NO3= Nitrate--N; N; --0.21270.2127
PPPP NO2= NitriteNO2= Nitrite--N;SiO3= Silicate; PP= Phytoplankton N;SiO3= Silicate; PP= Phytoplankton 11
* = Significant at 5% level * = Significant at 5% level
** = Significant at 1% level ** = Significant at 1% level
Stepwise multiple regression ( r ) values :
Abiotic (Hydrographic) parameters and
biotic groups of Phytoplankton at study station
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AT WT SAL DO Ph SM VEC PO4 NO3 NO2 SiO2
Abiotic parameters
Reg
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Blue Green Algae
Green Algae
Diatoms
Dinoflagellates
Stepwise multiple regression co-efficient for Phytoplankton at study Area
• Blue green algae: Air temperature, Water temperature,salinity and hydrogen ion concentration (pH) and VEC.
• Green algae : Dissolved oxygen, suspended matter,and silicate
• Diatoms : Dissolved oxygen, hydrogen ionconcentration (pH) and suspended matter
• Dinoflagellates: Air temperature, Water temperature,salinity and nitrate