identification of the potential sites for sea farming ...• to study the temporal and spatial sea...

Identification of the potential sites for sea farming along the Maharashtra coast using Remote Sensing data

OCEANSAT-II Utilisation Programme

Dr. M. M. Shirdhankar, Principal Investigator

COLLEGE OF FISHERIES, SHIRGAON, RATNAGIRI(Dr. B. S. Konkan Krishi Vidyapeeth, Dapoli)

Dr. M. M. Shirdhankar, Principal Investigator

Shri. S. V. Patil, Co-investigator

Shri. R. M. Tibile, Co-investigator

Shri. A. U. Thakare, Senior Research Fellow


Farming of marine fishes in cages

Sea Farming Techniques

COLLEGE OF FISHERIES, SHIRGAON, RATNAGIRI (Dr. B. S . Konkan Krishi Vidyapeeth, Dapoli)

Long line culture Raft culture of oysterSeaweed culture


Potential species for culture in India


Green mussel Edible oyster

Asian sea bass Grouper Cobia


Important parameter for sea farming and related sensor/data

Phytoplankton Productivity : Chlorophyll-a (OCM)

Suspended Sediment Concentration : Total Suspended Matter (OCM)

Transparency : Diffused Attenuation coefficient (OCM)

Temperature : Sea Surface Temperature (Aqua Modis)


Current : Current pattern ( in situ)

Depth : Depth record NHO admiralty charts

Protected areas : NHO admiralty charts


Objectives

• To study the temporal and spatial SeaSurface Temperature (SST)variationpatterns

• To study the spatio-temporal variations inchlorophyll concentrations


• To map theSuspended Sediments Concentrations (SSC)patterns

• To know the physical oceanographic features of the study area

• To develop a model based on above inputs using RS and GIS to identifypotential sites for mariculture


Study area



Details of the sampling stations covered since 2008-09

Sr. Sr. No.No.

YearYear Districts coveredDistricts covered Number of stationsNumber of stations

11 20082008--0909 RatnagiriRatnagiri 4444


11 20082008--0909 RatnagiriRatnagiri 4444

22 20092009--1010 Ratnagiri, Sindhudurg and RaigarhRatnagiri, Sindhudurg and Raigarh 7070

33 20102010--1111Ratnagiri, Sindhudurg, Raigarh, Ratnagiri, Sindhudurg, Raigarh,

Greater Mumbai and ThaneGreater Mumbai and Thane 6262


Details of the sampling carried out during 2010-11

Sr. Sr. No.No.

Sampling Sampling datedate

No. of No. of samplessamples

Sampling areaSampling area Geographical locationGeographical location

FromFrom ToTo FromFrom ToTo

11 03/12/201003/12/2010 1515 RatnagiriRatnagiri VengurlaVengurla1616°° 57' 20.0" N 57' 20.0" N 7373°° 16' 45.4" E16' 45.4" E

1616°° 23' 02.8" N 23' 02.8" N 7373°° 20' 35.3" E20' 35.3" E

22 08/12/201008/12/2010 1111 VeldurVeldur ShrivardhanShrivardhan1717°° 38' 32.7" N 38' 32.7" N 7373°° 07' 23.3" E07' 23.3" E

1818°° 04’ 11.3” N 04’ 11.3” N 7373°° 00’ 59.0” E00’ 59.0” E


22 08/12/201008/12/2010 1111 VeldurVeldur ShrivardhanShrivardhan7373°° 07' 23.3" E07' 23.3" E 7373°° 00’ 59.0” E00’ 59.0” E

33 14/01/201114/01/2011 0606 RatnagiriRatnagiri JaigarhJaigarh1717°° 06' 35.6" N 06' 35.6" N 7373°° 16' 23.0" E16' 23.0" E

1717°° 23' 03.6" N 23' 03.6" N 7373°° 11' 35.1" E11' 35.1" E

44 11/02/201111/02/2011 0505 HarneHarne ShrivardhanShrivardhan1717°° 46' 45.4" N 46' 45.4" N 7373°° 04' 18.5" E04' 18.5" E

1818°° 03’ 30.3” N 03’ 30.3” N 7272°° 58’ 05.6” E58’ 05.6” E

55 12/02/201112/02/2011 0505 VeldurVeldur JaigarhJaigarh1717°° 37' 53.0" N 37' 53.0" N 7373°° 06' 22.8" E06' 22.8" E

1717°° 22' 41.8" N 22' 41.8" N 7373°° 10' 16.0" E10' 16.0" E

6623/02/2011 23/02/2011

to to 25/02/201125/02/2011

2020 ShrivardhanShrivardhan DahanuDahanu1818°° 04' 09.6" N 04' 09.6" N 7272°° 58' 32.9" E58' 32.9" E

1919°° 59' 21.7" N 59' 21.7" N 7272°° 37' 10.3" E37' 10.3" E

Summary of parameters observed along the coast of Maharashtra

Parameters Minimum Maximum Average

Chlorophyll concentration (mg/m3) 0.02 5.93 0.42

Salinity (ppt) 30.00 35.00 33.17

Temperature (°C) 24.60 31.00 27.87


Temperature (°C) 24.60 31.00 27.87

Depth range (m) 2.00 15.00 7.73

pH 7.90 8.20 8.01

Transparency (cm) 60 420 190

Current velocity (cm/s) 3.85 15.01 7.03

Image processing for identification of the sites

OCEANSATOCEANSAT--II II Chlorophyll Chlorophyll ––a a concentrationconcentration

OCEANSATOCEANSAT--IIIISuspended Suspended Sediment Sediment

ConcentrationConcentration

OCEANSATOCEANSAT--IIIIDiffused Diffused

Attenuation Attenuation CoefficientCoefficient

Aqua ModisAqua ModisSea Surface Sea Surface TemperatureTemperature

Bathymetry Bathymetry surfacesurface

NHO chartsNHO chartsSheltered Sheltered

areaarea

Image analysis and subset

Scoring of parameters according to descriptive scale in Microsoft ExcelScoring of parameters according to descriptive scale in Microsoft Excel

Weighing of scores according to species of interest for culture

Identification of sites for sea farming according to species

Development of surface

Classification of sites

Final map composition

Score sheet for selection of sites

Sr. No.

Parameters Scores

1 Chlorophyll-a concentration (mg/m3)

0 = <0.01; 1 = 0.01 to 1.0; 2 = 1.1 to 5.0; 3 = 5.1 to 10.0; 4 = 10.0 to 15.0; 5 = 15.0 to 20.0

2 Suspended Sediment Concentration (mg/l)

0 = >15.0; 1 = 15.0 to 10.1;2 = 10.0 to 5.1; 3 = 5.0 to 1.0

3 Transparency (m) (Diffused 0 = <0.01; 1 = 0.010 to 0.30;Attenuation Coefficient) 2 = 0.031 to 0.50; 3 = 0.051 to 0.70;

4 = 0.071 to 0.90

4 Sea Surface Temperature (°C) 0 = < 23.0 or >32.1; 1 = 23.0 to 25.0;2 = 25.1 to 27.0; 3 = 27.1 to 29.0;4 = 29.1 to 32.0

5 Depth (m) 0 = < 2.0; 1 = 2.1 to 5.0;2 = 5.1 to 10.0; 3 = 10.1 to 15.0;

6 Shelter 0 = Not protected; 1 = One side protected;2 = Two sides protected

Scoring, weighing and identification of potential sites


Potential sites identified from Bankot to Jaigarh

Sites identified for Mussel/ oyster culture Sites identified for Carnivore fish culture



LocationLocation BankotBankot

Upper left Upper left coco--ordinatesordinates

18º 00 '36'' N 72º 56' 59'' E18º 00 '36'' N 72º 56' 59'' E

LocationLocation JaigarhJaigarh

Lower right Lower right coco--ordinatesordinates

17º 29 '26'' N 73º 22' 45'' E17º 29 '26'' N 73º 22' 45'' E

Priority wise area available for culture from Bankot to Jaigarh


coco--ordinatesordinates17º 29 '26'' N 73º 22' 45'' E17º 29 '26'' N 73º 22' 45'' E

Total areaTotal area 3162 (km3162 (km22))

Priority wise area (kmPriority wise area (km22))

Culture techniqueCulture technique Low Low MediumMedium HighHigh

Mussel/ Oyster Mussel/ Oyster cultureculture

153153 544544 901901

Carnivore fish Carnivore fish cultureculture

331331 783783 484484


Sites identified for Mussel/ oyster culture Sites identified for Carnivore fish culturePotential sites identified from Jaigarh to Ratnagiri



LocationLocation JaigarhJaigarh

Upper left Upper left coco––ordinatesordinates

17º 24 '37'' N 73º 02' 22'' E17º 24 '37'' N 73º 02' 22'' E

LocationLocation RatnagiriRatnagiri


16º 49 '09'' N 73º 28' 44'' E16º 49 '09'' N 73º 28' 44'' E

Priority wise area available for culture from Jaigarh to Ratnagiri






434434 14361436 12511251


792792 13241324 10051005


Potential sites identified from Ratnagiri to Vengurla

Sites identified for Mussel/ oyster culture Sites identified for Carnivore fish culture



LocationLocation RatnagiriRatnagiri


17º 00 '38'' N 72º 59' 57'' E17º 00 '38'' N 72º 59' 57'' E

LocationLocation VengurlaVengurla


15º 46 '18'' N 74º 11' 53'' E15º 46 '18'' N 74º 11' 53'' E

Priority wise area available for culture from Ratnagiri to Vengurla


coco--ordinatesordinates





16581658 53965396 14411441


17611761 59635963 771771


Priority wise total area available for culture in Ratnagiri and Sindhudurga district

LocationLocation BankotBankot


18º 00 '36'' N 72º 56' 59'' E18º 00 '36'' N 72º 56' 59'' E

LocationLocation VengurlaVengurla

Lower right Lower right 15º 46 '18'' N 74º 11' 53'' E15º 46 '18'' N 74º 11' 53'' E



15º 46 '18'' N 74º 11' 53'' E15º 46 '18'' N 74º 11' 53'' E





22452245 73767376 35933593


28842884 80708070 22602260


Sr. No.Sr. No. Expenditure headExpenditure headFunds required Funds required

for the year for the year 20112011--12 (Rs)12 (Rs)

11 I GISI GIS 1,00,0001,00,00022 Material (Contingent Expenditure)Material (Contingent Expenditure) 75,00075,000

33ManpowerManpower

1.1. Salary of S.R.F. @18,000/Salary of S.R.F. @18,000/-- + H.R.A. @ + H.R.A. @ 10% (Rs. 18,00/ month)10% (Rs. 18,00/ month)

2,37,6002,37,600

2.Arears ( Salary and H.R.A. from 1/04/10)* 2.Arears ( Salary and H.R.A. from 1/04/10)* and (Salary + H. R. A. hike from July, 2010 and (Salary + H. R. A. hike from July, 2010 79,80079,800

Annexure I Budget Provisions for the financial year 2011-12


and (Salary + H. R. A. hike from July, 2010 and (Salary + H. R. A. hike from July, 2010 after completion of two years)**after completion of two years)**

79,80079,800

44 TravelTravelTraveling AllowancesTraveling Allowances 30,00030,000Vehicle HiringVehicle Hiring 50,00050,000

55 Contingency (Vessel hire) Contingency (Vessel hire) 16 trips @ Rs.15,000/16 trips @ Rs.15,000/ triptrip 2,40,0002,40,00066 MiscellaneousMiscellaneous 20,00020,000

Sub totalSub total 8,32,4008,32,400Institutional charges @ 10% of the subtotalInstitutional charges @ 10% of the subtotal 83,24083,240

TotalTotal 9,15,640/9,15,640/--

*= Remuneration paid to the S. R. F. is increased from 1/04/10 **= Salary of S. R.F. to be raised in third year.


identification of the potential sites for sea farming ...• to study the temporal and spatial sea...

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