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| Last Updated:: 02/02/2017

Kollidam estuary

Kollidam estuary
 
Name of the River
Cauvery
Place
Kollidam
District
Nagapattinam
State
Tamil Nadu
Latitude
11° 29’N
Longitude
79° 50’E
Important land marks
Pazhayaru
Length
2 km
Type of the Estuary
Bar-built
Water temperature
33.1
Nature of the Substratum
Muddy
pH
8.2
Salinity
29.2 ppt
Dissolved oxygen
3.94
Predominat benthic fauna
Gastropod, Bivalves
Predominat Phytoplankton
Stephanopyxis palmeriana, Chaetoceros convolutum, C. didymus, Bellerochea malleus, Coscinodiscus concinnus, Asterionella japonica
Commercially important shellfishes
Crassostrea madrasensis
Commercially important Finfishes
Mugil cephalus, Thryssa sp., Sardinella sp.

Image

 

Physico-chemical parameters

  

Variations in mean monthly values of nutrient and physic-chemical parameters at station-2

 

 

Mean concentrations of Cadmium (mg/kg) in the sediment samples of 15 sites of Kollidam estuary

  

Sl. No.

Site/ Month

January

March

May

July

September

November

1

KS-I

0.28±0.03

0.31±0.03

0.27±0.01

0.20±0.01

0.49±0.02

0.39±0.013

2

KS-II

0.57±0.05

0.49±0.08

0.45±0.04

0.39±0.04

0.72±0.09

0.62±0.06

3

KS-III

0.60±0.04

0.51±0.03

0.47±0.02

0.39±0.01

0.74±0.05

0.65±0.04

4

KS-IV

0.8±0.07

0.71±0.04

0.61±0.03

0.45±0.03

1.03±0.27

0.91±0.05

5

KS-V

0.99±0.15

0.92±0.04

0.76±0.03

0.67±0.50

1.29±0.07

1±0.34

6

KS-VI

1.31±0.05

1.22±0.07

1.12±0.06

0.81±0.04

1.42±0.08

1.327±0.06

7

KS-VII

1.65±0.08

1.54±0.08

1.44±0.13

1.12±0.25

1.76±0.17

1.71±0.07

8

KS-VIII

1.83±0.10

1.82±0.09

1.73±0.09

1.12±0.08

1.90±0.15

1.87±0.11

9

KS-IX

1.81±0.12

1.64±0.38

1.60±0.30

1.55±0.22

1.88±0.21

1.84±0.21

10

KS-X

1.47±0.16

1.34±0.14

1.23±0.41

0.97±0.11

1.76±0.20

1.62±0.17

11

KS-XI

1.26±0.09

1.00±0.200

0.87±0.13

0.82±0.07

1.37±0.10

1.34±0.12

12

KS-XII

1.24±0.15

1.1±0.11

1.03±0.20

0.77±0.08

1.43±0.24

1.36±0.15

13

KS-XIII

0.90±0.11

0.89±0.09

0.77±0.08

0.58±0.06

1.11±0.12

0.98±0.10

14

KS-XIV

0.73±0.06

0.67±0.08

0.45±0.35

0.41±0.04

0.88±0.10

0.80±0.03

15

KS-XV

0.32±0.03

0.29±0.03

0.24±0.02

0.19±0.02

0.47±0.04

0.43±0.04

 

Mean concentrations of Chromium (mg/kg) in the sediment samples of 15 sites of Kollidam estuary

  

Sl. No.

Site/ Month

January

March

May

July

September

November

1

KS-I

11.23±0.68

12.23±0.72

12.23±0.72

17.03±1.9

18.4±1.14

20.26±1.79

2

KS-II

24.46±1.45

25.5±1.52

25.5±1.52

29.6±1.82

31.73±1.97

34.33±2.8

3

KS-III

36.66±2.14

37.86±2.38

37.86±2.38

42±3.04

44±3.04

46±3.04

4

KS-IV

49.93±2.94

53±3.12

53±3.12

55.73±3.7

60.7±4.2

64.46±6.71

5

KS-V

65.26±3.88

67.13±4.03

67.13±4.03

73.53±4.5

76.03±5.11

77.56±4.83

6

KS-VI

80.4±5.7

80.86±5.14

80.86±5.14

84.66±5.3

88.4±7.23

88.66±5.35

7

KS-VII

85.26±5.1

87.13±5.35

87.13±5.35

96.13±12.3

95.4±11.45

94.83±12.8

8

KS-VIII

86.41±7.23

87.7±6.37

87.7±6.37

91.5±6.08

94.07±10.4

91.5±8.53

9

KS-IX

81.38±9.32

83.74±8.96

83.74±8.96

91.97±8.1

89.11±7.76

91.86±9.07

10

KS-X

75.81±8.66

76.13±8.87

76.13±8.87

80.23±8.9

82.49±8.96

85.9±7.99

11

KS-XI

62.2±7.12

67.83±5.92

67.83±5.92

71.46±6.7

72.03±8.15

73.49±8.61

12

KS-XII

47.03±4.88

48.67±8.75

48.67±8.75

57.86±5.4

62±7.01

61.04±5.56

13

KS-XIII

35.08±3.95

36±4.09

36±4.09

43.3±5.43

42.6±4.26

43.62±5.06

14

KS-XIV

23.31±2.66

24.62±2.75

24.62±2.75

28.26±2.7

30.06±3.5

32±3.73

15

KS-XV

10.7±1.22

11.59±1.33

11.59±1.33

18.7±4.75

19.16±2.51

19.62±2.06

 

Mean concentrations of Copper (mg/kg) in the sediment samples of 15 sites of Kollidam estuary

  

Sl. No.

Site/ Month

January

March

May

July

September

November

1

KS-I

13.25±0.82

9.17±0.54

10.73±0.66

12.9±0.78

14.2±0.79

15.9±0.87

2

KS-II

18.36±1.10

11.24±0.69

11.83±0.64

18.77±1.12

19.63±1.12

20.99±1.26

3

KS-III

23.46±1.36

19.4±1.17

20.63±1.56

23.97±1.36

28.78±1.59

27.43±1.70

4

KS-IV

31.7±1.92

27.5±1.60

29.84±1.83

32.03±1.85

33.72±2.04

33.4±1.90

5

KS-V

34.73±2.12

32.16±1.94

36.06±2.05

37.96±2.13

39.16±2.31

41.93±2.57

6

KS-VI

45.56±2.76

43.96±2.68

42.96±2.68

47±2.879

48.83±2.81

50.16±2.92

7

KS-VII

51.5±3.04

48±2.87

51.91±3.07

52.26±3.78

52±3.25

53±3.12

8

KS-VIII

48.9±5.71

46.66±5.32

47.5±7.3

49.4±5.63

49.36±5.83

50.6±5.81

9

KS-IX

43.13±4.96

40.79±4.73

39.87±0.45

44.64±5.14

47.36±4.89

50.4±5.2

10

KS-X

35.98±4.13

32.96±3.84

32.16±3.75

37.06±4.20

37.96±4.29

39.7±4.67

11

KS-XI

29.03±3.26

27.16±3.15

27.46±2.57

29.76±3.40

29.82±3.40

31.83±3.61

12

KS-XII

22.3±2.6

18.43±2.13

19.57±2.71

23.17±2.66

26.03±2.91

27±3.03

13

KS-XIII

18.31±1.72

14.56±1.67

11.5±1.47

18.76±2.11

19.86±2.28

26.09±2.91

14

KS-XIV

12.32±1.43

8.72±1.02

9.11±1.06

10.96±1.26

15.2±1.65

13.5±1.47

15

KS-XV

12.7±1.21

9.27±0.83

10.79±0.87

9.68±0.87

13.91±0.89

16.8±1.13

  

Mean concentrations of Iron (mg/kg) in the sediment samples of 15 sites of Kollidam estuary

 

Sl. No.

Site/ Month

January

March

May

July

September

November

1

KS-I

64.3±3.87

22.5±1.4

35.74±2.05

84.65±5.01

84.65±5.01

112.37±6.82

2

KS-II

450.12±1.7

259±16.64

298±18.24

387.47±23.1

387.47±23.1

634.25±20.7

3

KS-III

1002±59.0

917±16.82

889.67±5.3

1023.33±6.4

1023.33±6.4

1221.67±7.5

4

KS-IV

1326.6±7.0

1236.17±7.5

1350±78.9

1503±91.24

1503±91.24

1731.31±1.0

5

KS-V

1842.3±1.0

1672±103.06

1726.43±1

1967±121.6

1967±121.6

2234±134.8

6

KS-VI

2160±12.6

2103±125.79

2074.7±1.2

2234±140

2234±140

2395.67±1.4

7

KS-VII

2503±15.2.

2379±147.98

2436.1±1.4

2669.67±1.6

2669.67±1.6

2589±166.4

8

KS-VIII

2422.33±2

2341.45±2.6

2268.3±2.5

2452.33±2.8

2452.33±2.8

2647.22±3.0

9

KS-IX

2163.3±2.0

2059.67±2.3

2016.4±2.2

1973±225.3

1973±225.3

2202.53±2.4

10

KS-X

1833±19.9

1719±190.78

1645.8±1.8

1928±208.8

1928±208.8

2122.33±2.4

11

KS-XI

1346.3±1.4

1261.67±1.4

1224.6±1.3

1433±15.6

1433±15.6

1651.33±17

12

KS-XII

1353±11.2

1270±97.86

1233±95.3

1385±112.6

1385±112.6

1586.33±1.4

13

KS-XIII

970±112.6

938.17±10.1

886.63±6.6

820.97±89.6

820.97±89.6

1161.67±1.2

14

KS-XIV

368.66±4.2

279.37±31.5

283.61±3.2

422.31±45.6

422.31±45.6

580±60.82

15

KS-XV

53.34±6.21

21.42±2.48

61.27±6.65

80.27±8.96

80.27±8.96

136±15.62

  

Mean concentrations of Lead (mg/kg) in the sediment samples of 15 sites of Kollidam estuary

 

  

Sl. No.

Site/ Month

January

March

May

July

September

November

1

KS-I

20.63±1.80

19.43±1.93

18.27±1.23

20.5±1.56

21.7±2.25

22.06±2.09

2

KS-II

31.36±1.79

24.04±1.86

23.51±2.41

27.9±2.79

33.77±3.23

34.86±2.845

3

KS-III

39.0±3.15

36.1±1.81

32.4±3.92

43.67±4.81

46.71±4.31

45.53±4.110

4

KS-IV

52.9±5.21

46.29±2.81

41.06±4.9

53.83±5.44

57.19±5.92

55.9±4.1

5

KS-V

64.16±4.12

62.7±3.65

55.17±3.37

76.97±4.74

69.24±4.14

65.33±3.95

6

KS-VI

81.8±5.07

77.35±4.54

64.63±3.91

91.51±5.53

89.47±5.21

84.86±5.22

7

KS-VII

92.73±5.41

90.18±5.53

90.84±5.26

93.27±5.44

94.31±5.80

95.4±5.46

8

KS-VIII

89.16±10.43

87.23±10.20

86.46±9.92

88.87±10.31

91.77±10.96

89.5±10.50

9

KS-IX

77.7±8.49

77.0±8.1

68.86±8.00

79.4±9.73

85.18±9.04

80.73±9.33

10

KS-X

61.08±6.31

59.19±6.82

53.43±6.13

62.1±7.19

67.62±7.92

65.18±5.78

11

KS-XI

49.53±5.71

44.6±5.2

41.47±4.90

50.28±5.80

66.59±7.42

53.95±4.56

12

KS-XII

40.81±4.80

35±4.11

34±3.91

41.967±4.80

46.75±5.24

45.16±3.96

13

KS-XIII

30.67±2.10

26.27±2.20

23.6±2.30

26.47±2.20

32.56±3.41

30.9±2.89

14

KS-XIV

29.87±2.02

26.52±2.39

23.18±2.09

30.13±2.84

34.39±2.75

31.9±3.12

15

KS-XV

20.17±2.11

19.1±2.1

19.23±1.93

23.83±3.40

22.6±2.34

21.26±2.84

 

 

References

 

Patterson Edward, J.K. and K. Ayyakkannu, 1991. Studies on the ecology of plankton community of Kollidam estuary, southeast coast of India: I. Phytoplankton. Mahasagar, 24(2): 89–97.

Shameem Rani, K., 2015. Licensed Under Creative Commons Attribution CC BY Assessment of Heavy Metals Contamination Level in Estuarine Sea Sediment from Kollidam, India. International Journal of Science and Research (IJSR), 4(3): ISSN (Online): 2319-7064