DATA- South Chennai Wetlands  
     
Table-1 Ownership of Land
Owner/ user of the land
Area
Owner/ User of the land
Area
Perungudi STP  (Total Area)
957
Alandur Mun. STP
20
STP
31
 STP-CCRCP
100
Corp. of Chennai for Garbage Dumping
74
Highways Department-
Radial Roadways 
25.60
 
 
Remaining land (Swamp Area)
706.40
 

 

 Table 2 - Flora of South Chennai  Wetlands

 

S.No
Plant Name
Family
Colloquial Name
Values

1

Typha Angustifolia

Thyphaceae

Elephant grass, Sambu

Fodder

2

Eicchornia Crassipes

Potederiaceae

Water Hyacinth, Aagaya  thamarai.

Fodder

3

Brachiaria Mutica

Poaceae

Buffollow grass, Sanampullu.

Fodder

4

Sparganium Erectum

Sparganiaceae

Vengaya thamarai.

Fodder

5

Ceratophyllum Linn.

Ceratophyllaceae

Nasu.

Cooling, usefull in biliousness, hairs contain microphyllin

6

Vallisneria

Hydrocharitaceae

Kuthirai vellam pasi.

Edible, ornamental plant

7

Ipomoea Aqatica Forsk.

Convolulaceae

Swamp cabbage, vellai keerai

Edible, good source of minerals and vitamins

8

Ipomea Crassa

NA

Lotus, Alli thamarai

Edible and ornamental, seeds employed in cetaceous diseases

9

Maritima Suaeda

Chenopodiaceae

Common Indian salt wort, Vellakeerai

Edible and reclamation for saline soil.

10

Nymphaea  Linn.

Nymphaeaceae

Europian white lilly, Alli

Edible, used for alcohol ind., tanning, has medicinal values.

11

Cressa Cretica Linn.

Convolvulaceae

Uppu marikolunthu

Used as tonic, aphrodisiac and stomachic.

12

Calotropis gigantean

Asclepiadacae

Erruku

Twine, seed for stuffing mattress and pillows.

13

Datura metal Linn.

Solanaceae

Karu Uumathambai

Leaves narcotic and antispasmodic, oil seeds

14

Parthenium Linn.

Astraceae

Mukuthi poo

Medicinal,fonic, dysentery

15

Acacia nilotica Linn.

Mimosaceae

Mimo, Karuvelam.

Tannin, furniture works

* NA – Not available

 

 

Table 3 -Fauna of South Chennai Wetlands (March & April)

 

S.No
 
Common Name
Italian Name

1

 

 

FISHES

 

Tilapia

Tilapia mossa

2

Cat fish

Mystus guilo

3

Snake head fish

Ophice phallus punctatus

4

Mosquito fish

Gambusia affinis

5

 

 

LIZARDS

Gardern Lizard

Calotes versicolor

6

Monitor Lizard

Varanus spp.

7

Black pond turtle

Melanochelys tarjuda

8

Termite Gecko

Hemidactylus spp.

9

 

 

 

MAMMALS

 

Three stripped ground squirrel

Funambulus Palmarum

10

Bandicoot rat

Bandicota indica

11

Mongoose

Herpestes edwardsi

12

Black napped have

Lepus nigricolis

13

FROGS

Green frog

Rana crassa

14

Narrow mouthed frog

Microhyla rubra

15

Trec frog

Polypedatus maculates

16

Common toad

Bufo melonastictes

17

Ferguson’s toad

 

18

 

 

 

 

 

 

SNAKES

Checked Keelback

Xenochrophis piscator

19

Vine snake

Ahaetulla nasutus

20

Bronze back tree snake

Dendrolaphis tristis

21

Striped keelback

Amptiesma stolata

22

Rat snake

Ptyas mucosus

23

Common skink

Mabuya cainato

24

Snake skink

Riopa punctata

 
Table 4 – List of Birds identified in South Chennai wetlands

 

Sl.

COMMON NAME

LATIN NAME

TAMIL NAME

R/RM/M

1

Little Grebe

Tachybaptus ruficolis

Tanni Pullu

R

2

Little Cormorant

Phalacrocorax

Pambuttara

RM

3

Darter (snake bird)

Anhinga rufa

Neela Kagam

RM

4

Purple Heron

Ardea purpurea

Perin Vellai Kokku

RM

5

Grey Heron

Ardea cinerea

Sambal Narai

RM

6

Paddy Bird

Ardeola grayii

Kulatthu Kokku

RM

7

Cattle Egret

Bulbulcus idis

Unni Kokku

RM

8

Chestnut Egret

Ixobrychus cinnamomeus

Kuruttu Kokku

RM

9

Little Egret

Egretta garzetta

Chinna vellai Kokku

R

10

Bittern

Botaurus stellaris

NA

M

11

Old billed Stork

Mycteria leucocephala

Nathai Kuthai Narai

RM

12

Black winged Kite

Elanus Caeruleus

NA

R

13

Common pariah kite

Milvus migrans

Periya Parandu

R

14

Shikra

Accipiter badius

NA

R

15

Buzzard

Buteo

Parandu

M

NA- Not available · R – Residential · M – Migratory · RM – Residential and migratory

 

Table 5– Socio-Economic attributes of South Chennai Wetlands

 

Village

ToPopn

Male

Female

SC

Lit

Mlit

Flit

Agr

Vac

Ind

Res

Medavakkam

6432

51

48

22

49

58

39

15

25

25

30

Far Flung from Chennai city- hence low literacy rate.

Jalladempettai

5062

50

49

5

62

68

52

25

25

10

20

Female are predominantly house hold workers here

Pallikaranai

7822

52

47

28

67

73

61

35

NA

NA

NA

Heart of the wetland, Other State Populace and NIOT

Perungudi

and Seevaram

9709

53

46

70

59

62

8

NA

35

NA

NA

STP located here, twin villages form the part of the town panchayat headquartered at Perungudi

Velachery

43,796

51

48

11.7

73

79

86

NA

NA

NA

NA

Cosmopolitan Urbanized, Real Estate heaven, MRTS, MNCs

Okkiyam Thoraipakkam

9679

53

46

11

69

77

61

20

25

NA

30

Jeppiar Educational Trust

 

Table 5 Remote Sensing Analysis

 

 Mapping tech.

Categories

Location

Habitat Zones

Open Water

Central and south east

 

Between Open Water & Shore Land

Central south

 

Shore Land

Central

 

Barren

North, South, Central, SE and SW

 

Sparsely Vegetated Barren Islet

SE , SW and North

 

Built Up

North and South

Turbidity

Low Turbidity

Central and South East

 

Medium Turbidity

East, central and South

 

High Turbidity

Scattered all over

Vegetation

Water

Central, South

 

Submerged Vegetation

Central

 

Polluted Vegetation

North and South

 

Floating Vegetation

Central , North And South

 

Shore Land Vegetation

Around deep waters

 

Emergent Vegetation

Central

 

Dry Vegetation

South

 

Shrubs

East and south

Land Use

Deep Water,

Central and South East

 

Shoreline Vegetation

North West and Central

 

Dry Beds,

North, Central and South

 

Shallow Water,

 

 

Thick Vegetation

Thick vegetation

 

Contaminated Vegetation,

South

 

Built Up Areas

South West and North

 

Landfills

Central

 

Open Areas

South, South East and East

 

RESULTS OF THE WATER QUALITY

Water samples collected from the South Chennai Wetlands

 Date of collection: 12th April 2002 

Parameters

Sample 1

Sample 2

Sample 3

Sample               4

Sample  5

PHYSICAL EXAMINATION

 

 

 

 

 

Appearance

Sly,

Blackish

Sly,

Blackish

Sly,

Blackish

Sly,

Blackish

Sly,

Blackish

Odor

H2S Smell

H2S Smell

H2S Smell

H2S Smell

H2S Smell

Turbidity NTU

26.9

42.0

66.9

69.6

83.2

Total Dissolved Salts

1516

3020

3036

2704

2840

Electrical

Conductivity mic S/cm

2092

4236

4246

3681

3895

CHEMICAL EXAMINATION

 

 

 

 

 

PH

7.96

7.83

7.88

6.99

7.26

Alkalinity Ph as CaCO3

0

0

0

0

0

Alkalinity Total as CaCO3

556

788

808

720

680

Total hardness as CaCO3

464

720

710

590

670

Calcium as Ca

98

188

200

144

172

Magnesium as Mg

53

60

50

55

58

Sodium as Na

207

540

531

459

486

Potassium as K

37.5

70

65

55

55

Iron Total as Fe

0.09

0.29

0.11

0.46

0.52

Mangneese as Mn

Nil

Nil

Nil

Nil

Nil

Free Ammonia as NH3

37.72

52.92

50.91

70.42

53.86

Nitrate as NO2

0.008

0.03

0.015

0.007

0.028

Nitrate as NO3

0.45

0.09

1

Nil

0.45

Chloride as Cl

318

980

1004

735

833

Flouride as F

0.44

0.3

0.07

0.66

.38

Sulpahte as S04

24

28

42

267

221

Phospahate as PO4

19.60

28.11

33.43

23.08

19.89

Tidy’s test

20

36

36

123

97

Silica as “SiO2

4.72

5.68

3.21

67.24

57.66

Note: All the samples were collected on the 12th of April,2002

Sample 1: Velacherry tank,

Sample 2: Pallikaranai Swamp - proximate to the Velacherry –Tambaram Main Road opposite to the Alandur Municipality,

Sample 3: Pallikaranai Swamp – intersection of the Velacherry –Tambaram Main Road and the Pallavaram By-Pass, near NIOT ,

Sample 4: Pallikaranai Swamp – Underbridge near the Thoraipakkam intersection close to the Perungudi STP, 

Sample 5: Pallikaranai +Swamp –inlet of the sewage in the Perungudi STPs

     
Wetlands Main Page  

 

Hosted by www.Geocities.ws
GridHoster Web Hosting
1