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| Last Updated:: 02/02/2017

Manakudy estuary

 

Manakudy estuary

 

 

Name of the River
Pazhayar
Place
Manakudy
District
Kanyakumari
State
Tamil Nadu
Latitude
8° 088’N
Longtitude
77° 486’E
Important Land Marks
Manakudy
Type of the Estuary
Bar built
Water Temperature
24.8°–30.8°C
Salinity
1.40–25.31 ppt

 

Physico-chemical parameters

 

Nutrients, Organic carbon and Calcium carbonate of Station 1 (C1)

 

 

 Descriptive statistical analysis for the grain size parameters

 

 

Sl. No.

 

Seasons

 

Grain size parameters

Mean

(Φ)

Sorting

(σ)

Skewness

(Ski)

Kurtosis

(KG)

1

 

 

Pre monsoon

Min

1.56

0.84

0.24

1.81

2

Max

2.01

0.98

0.82

2.43

3

Average ±

1.76 ± 0.14

0.90 ± 0.04

0.46 ± 0.19

2.09 ± 0.20

4

 

 

Monsoon

Min

1.84

0.78

-0.14

1.66

5

Max

2.18

1.02

0.39

2.59

6

Average ±

2.01 ± 0.13

0.89 ± 0.09

0.13 ± 0.21

2.06 ± 0.31

7

 

 

Post monsoon

Min

1.52

0.81

0.17

1.93

8

Max

1.94

0.92

0.86

2.99

9

Average ±

1.72 ± 0.12

0.87 ± 0.05

0.51 ± 0.21

2.29 ± 0.37

 

Seasonal variation on total heterotrophic bacterial count (CFU×105) in the water sample during the study period May 2012 - April 2013

 

 

Sl. No.

 

Southwest monsoon

Northeast monsoon

Non-monsoon

1

Station 1

12.20±0.26

17.30±0.58

9.90.43

2

Station 2

13.65±0.51

13.10±0.78

12.70±0.40

3

Station 3

13.58±0.66

12.03±0.37

13.60±0.12

4

Station 4

16.93±0.41

11.48±0.66

11.38±0.32

5

Station 5

14.25±0.21

20.35±0.26

11.45±0.30

6

Station 6

15.98±0.19

13.38±0.14

10.33±0.16

 

 

Biological entities

 

List of meiobenthic fauna recorded in Manakudy estuary

 

 

Sl. No.

Name of the Species

Station 1

Station 2

Station 3

Station 4

Nematodes

1

Desmoscolex sp.

*

*

*

*

2

Daptonema conicum

*

*

*

*

3

Halalaimus sp.

*

*

*

*

4

Theristus sp.

*

*

*

*

5

Viscosia sp.

*

*

*

*

Ostrocodes

6

Cypridina  sp.

*

*

*

*

7

Cyprideis  sp.

*

*

*

*

Harpacticoids copepods

8

Euterpina acutifrons

*

*

*

-

9

Macrosetella sp.

*

*

*

-

10

Microsetella   sp.

*

*

*

-

11

Polychaeta larvae Foraminiferans

*

*

-

-

12

Ammonia beccarii

*

*

*

-

13

Globigerinoides sp.

*

*

*

*

14

Globigerina sp.

*

*

*

*

15

Lagena semistriata

*

*

*

*

16

Neoconorbina  sp.

*

*

*

*

17

Nonion depressulum

*

*

*

*

18

Planorbulinella  sp.

-

*

*

-

19

Quinqueloculina sp.

*

*

*

*

20

Rotalia pulchella

*

*

*

*

21

Rosalina bradyi

*

*

*

*

22

Rosalina globularis

*

*

*

*

23

Spiroloculina sp.

*

*

*

*

24

Spirillina limbata.

*

*

*

*

25

Textularia sp.

*

*

*

*

26

Triloculina  sp.

*

*

*

-

27

Bolivina abbreviata

-

*

*

-

28

Discorbis sp

-

*

-

-

29

Eponides repandus

-

*

-

-

30

Planorbulinella  sp.

-

-

-

-

Microflora

31

Coscinodicus centralis

*

*

*

*

32

C. gigas

*

*

*

*

33

C. radiatus

*

*

*

*

34

C. thori

*

*

*

-

35

Triceratium favus

*

*

*

-

36

Pleurosigma elongatum

*

*

*

-

37

Odentella sinensis

*

*

*

-

Total

32

36

32

22

 

* Present, - Absent

 

References

 

Arumugam, A. and Sugirtha P. Kumar, 2015. Nutrient Distribution of Core Sediments in the mangroves of Manakudy estuary, Southwest coast of India. International Research Journal of Environment Sciences, 4(1): 11–15.

Kannappan, T. and C. Amutha, 2014. Meiobenthic composition of Manakudy estuary, southwest coast of India. International Journal of Current Research, 6(11): 9989–9996.

Sheela, M.S. and P. Sugirtha Kumar, 2015. Grain size analysis and characterization of sedimentary environment along Manakudy estuary, Tamil Nadu, India. International Journal of Current Research, 7(3): 13265–13275.

Ajithamol, A., M. Michael Babu, S. Saraswathy and B. Venkadesh, 2016. A study on the role of microbial diversity and their interferences with the ecosystem of Manakudy estuary. International Journal of Current Research, 8(4): 29244–29247.