Trends analysis of commercial Fish production in Mannar basin of Sri Lanka

Nalinda Ambagamuwa (128529)Department of Aquaculture & Fisheries

Faculty of Livestock Fisheries & NutritionWayamba University of Sri Lanka

IntroductionMannar basin is rich with numerous types of Fish resources and other

commercially important resources

It is directly involved with the Fish industry in Sri Lanka

Mannar basin consists with seven major fishery districts

Galle, Kaluthara, Colombo, Negombo,

Chillaw, Puttalam and Mannar

N

Rationale

• There are no much findings to determine the current fish production

trends of the Mannar basin

• There is no much research findings to make efficient policy decision to

conserve the fishery resources in Mannar basin

Major problems • Civil war condition ( Mainly in Mannar district)

• Natural disasters (Tsunami, storms, cyclones)

• Illegal fishing activities- Indian poaching

• Sand mining

• Coral mining

• Hydrocarbon exploration activities

Objectives

• To find out the basic trends of the fishery

• To describe the present situation of the fishery in the Mannar basin

• To identify the general problems in the selected fishing communities

• To evaluate the socio-economic situation of the selected fishery

districts

Methodology• Study area- Seven fishery districts in the Mannar basin

• Project period- 15 weeks

• Data collection

Fish production data Annual Marine production data (Year 1981-2015)

Commercial group-wise data (Year 2003-2015)

Fishing fleet data

Fisheries sector’s socio-economic data

N

Data were collected from;

Ministry of Fisheries and Aquatic Resource Development

District fisheries offices

The Department of Census & Statistics of Sri Lanka

National Aquatic Resources Research & development Agency (NARA

Year books)

Two basic test

• Sequential Mann Kendal test Main turning points in the fish production(1981-2015)

• Simple linear regression test Commercial Fish groups trends(2003-2015)

Marine annual fish production trends(1981-2015)

• SWOT analysis was conducted – with the aid of key informant persons

Analysis Method

Results

19811983

19851987

19891991

19931995

19971999

20012003

20052007

20092011

20132015

0

10000

20000

30000

40000

50000

60000

Annual marine fish production of fishery districts in the Mannar basin

Kaluthara Galle Colombo NegomboChilaw Puttalam Mannar

Year

Fish

Pro

ducti

on(M

t)

19811982198319841985198619871988198919901991199219931994199519961997199819992000200120022003200420052006200720082009201020112012201320142015

-5

-4

-3

-2

-1

0

1

2

3

4

Marine Fish Production Trend of the Mannar fishery district

u(ti) v(ti) Series3 Series4

Year

Uti &

Vti No any significant turning

point

19811983

19851987

19891991

19931995

19971999

20012003

20052007

20092011

20132015

-3

-2

-1

0

1

2

3

4

5

6

Marine Fish Production Trend of the Puttalam fishery district

u(ti) v(ti) Series3 Series4

Year

Uti &

Vti

19811983

19851987

19891991

19931995

19971999

20012003

20052007

20092011

20132015

0

5000

10000

15000

20000

25000

30000

35000

40000

Marine Sector Fish Catch of Chillaw District (Mt)

Chilaw

Year

Fish

Pro

ducti

on(M

t)

P-value 0.00P-value 0.00

19811983

19851987

19891991

19931995

19971999

20012003

20052007

20092011

20132015

-3

-2

-1

0

1

2

3

4

5

6

Marine Fish Production Trend of the Chillaw fishery district

u(ti) v(ti) Series3 Series4

Year

Uti &

Vti

19811982198319841985198619871988198919901991199219931994199519961997199819992000200120022003200420052006200720082009201020112012201320142015

-3

-2

-1

0

1

2

3

4

5

6Marine Fish Production Trend of the Negombo fishery district

u(ti) v(ti) Series3 Series4

Year

Uti &

Vti

19811982

19831984

19851986

19871988

19891990

19911992

19931994

19951996

19971998

19992000

20012002

20032004

20052006

20072008

20092010

20112012

20132014

2015-3

-2

-1

0

1

2

3

4

Marine Fish Production Trend of the Colombo fishery district

u(ti) v(ti) Series3 Series4

Year

Uti &

Vti

19811983

19851987

19891991

19931995

19971999

20012003

20052007

20092011

20132015

-3

-2

-1

0

1

2

3

4

5

6

7

Marine Fish Production Trend of the Kaluthara fishery district

u(ti) v(ti) Series3 Series4

Year

Uti &

Vti

19811983

19851987

19891991

19931995

19971999

20012003

20052007

20092011

20132015

-3

-2

-1

0

1

2

3

4

5

6

7Marine Fish Production Trend of the Galle fishery district

u(ti) v(ti) Series3 Series4

Year

Uti &

Vti

19811983

19851987

19891991

19931995

19971999

20012003

20052007

20092011

20132015

0

50000

100000

150000

200000

250000

Annual Fish production of the Mannar basin

Mannar basin Production

Year

Fish

Pro

ducti

on(M

t) P-value 0.00

P-value 0.00

19811983

19851987

19891991

19931995

19971999

20012003

20052007

20092011

20132015

0

5000

10000

15000

20000

25000

Marine Sector Fish Catch of Mannar fishery district (Mt)

Mannar

No significant trend

19811983

19851987

19891991

19931995

19971999

20012003

20052007

20092011

20132015

0

5000

10000

15000

20000

25000

30000

35000

40000

45000

50000

Marine Sector Fish Catch of Puttalam District (Mt)

Puttalam

19811983

19851987

19891991

19931995

19971999

20012003

20052007

20092011

20132015

0

5000

10000

15000

20000

25000

30000

35000

40000

Marine Sector Fish Catch of Chillaw District (Mt)

Chilaw

Year

Fish

Pro

ducti

on(M

t)

19811983

19851987

19891991

19931995

19971999

20012003

20052007

20092011

20132015

0

5000

10000

15000

20000

25000

30000

35000

40000

45000

Marine annual production of Negombo fishery District (Mt)

Negombo

Year

Fish

Pro

ducti

on(M

t)

19811983

19851987

19891991

19931995

19971999

20012003

20052007

20092011

20132015

0

1000

2000

3000

4000

5000

6000

7000

8000

Marine Sector Fish Catch of Colombo District (Mt)

Colombo

19811983

19851987

19891991

19931995

19971999

20012003

20052007

20092011

20132015

0

10000

20000

30000

40000

50000

60000Marine Sector Fish production of Kaluthara District (Mt)

Kaluthara

Year

Fish

Pro

ducti

on(M

t)

19811983

19851987

19891991

19931995

19971999

20012003

20052007

20092011

20132015

0

10000

20000

30000

40000

50000

60000

Marine Sector Fish Catch of Galle District (Mt)

Galle

Year

Fish

Pro

ducti

on(M

t)

Districts annual production (Year 1981-2015)Percentage values of the annual production

Puttalam 19%

Mannar 8%Kaluthara

18%

Galle 16%

Colombo 2%Negombo

21%

Chillaw 16%

Significant trends of commercially important Fish groups

2003 2005 2007 2009 2011 2013 20150

2000400060008000

100001200014000

Large pelagic group of Puttalam fishery district

Large Pelagic

Year

Fish

Pro

ducti

on(M

t)

2003 2005 2007 2009 2011 2013 20150

5000

10000

15000

20000

Small pelagic group of Puttalam fishery district

Small Pelagic

Year

Fish

Pro

ducti

on(M

t)

2003 2005 2007 2009 2011 2013 20150

1000200030004000500060007000

Dermasal Group of Puttalam district

Dermasal

Year

Fish

Pro

ducti

on(M

t) No significant trend

2003 2005 2007 2009 2011 2013 20150

1000

2000

3000

4000

5000

Prawn Group of Puttalam fishery district

Prawns

YearFi

sh P

rodu

ction

(Mt)

P-value 0.001No significant trend

P-value 0.001

2003 2005 2007 2009 2011 2013 20150

2000400060008000

1000012000

Large pelagic group of Chillaw fishery District

Large Pelagic

Year

Fish

Pro

ducti

on(M

t)

2003 2005 2007 2009 2011 2013 20150

5000

10000

15000

20000

Small pelagic group of Chillaw fishery district

Small Pelagic

Year

Fish

Pro

ducti

on(M

t) No significant trend

2003 2005 2007 2009 2011 2013 20150

1000200030004000500060007000

Dermasal group of Chillaw fishery district

Dermasal

Year

Fish

Pro

ducti

on(M

t)

P-value 0.00

2003 2005 2007 2009 2011 2013 20150

5001000150020002500300035004000

Prawn group of Chillaw fishery district

Prawns

YearFi

sh P

rodu

ction

(Mt) P-value 0.002

P-value 0.006

2003 2005 2007 2009 2011 2013 20150

5000

10000

15000

20000

25000

Large pelagic group of Negombo fishery district

Large Pelagic

Year

Fish

Pro

ducti

on(M

t)

No significant trend

2003 2005 2007 2009 2011 2013 20150

2000400060008000

100001200014000

Small pelagic group of Negombo fishery district

Small Pelagic

Year

Fish

Pro

ducti

on(M

t)

2003 2005 2007 2009 2011 2013 20150

1000200030004000500060007000

Dermasal group of Negombo fishery district

Dermasal

Year

Fish

Pro

ducti

on(M

t)

P-value 0.00

2003 2005 2007 2009 2011 2013 20150

1000

2000

3000

4000

5000

Prawn group of Negombo fishery district

Prawns

YearFi

sh P

rodu

ction

(Mt)

No significant trend

P-value 0.021

2003 2005 2007 2009 2011 2013 20150

1000

2000

3000

4000

5000

Large pelagic group of Colombo fishery district

Large Pelagic

Year

Fish

Pro

ducti

on(M

t) No significant trend

2003 2005 2007 2009 2011 2013 20150

500

1000

1500

2000

Small pelagic group of Colombo fishery district

Small Pelagic

Year

Fish

Pro

ducti

on(M

t) No significant trend

2003 2005 2007 2009 2011 2013 20150

500

1000

1500

2000

Dermasal group of Colombo fishery district

Dermasal

Year

Fish

Pro

ducti

on(M

t)

No significant trend

2003 2005 2007 2009 2011 2013 20150

50100150200250300350400

Prawn group of Colombo fishery district

Prawns

YearFi

sh P

rodu

ction

(Mt) No significant trend

2003 2005 2007 2009 2011 2013 20150

2000400060008000

100001200014000

Large pelagic group of Mannar fishery district

Large Pelagic

Year

Fish

Pro

ducti

on(M

t)

2003 2005 2007 2009 2011 2013 20150

2000400060008000

1000012000

Small pelagic group of Mannar fishery district

Small Pelagic

Year

Fish

Pro

ducti

on(M

t) No significant trend

2003 2005 2007 2009 2011 2013 20150

1000

2000

3000

4000

5000

Dermasal group of Mannar fishery district

Dermasal

Year

Fish

Pro

ducti

on(M

t)

No significant trend

2003 2005 2007 2009 2011 2013 20150

500

1000

1500

2000

Prawn group of Mannar fishery district

Prawns

Year

Fish

Pro

ducti

on(M

t) P-value 0.006

P-value 0.017

2003 2005 2007 2009 2011 2013 20150

5000

10000

15000

20000

25000

30000

Large pelagic group of Galle fishery district

Large Pelagic

Year

Fish

Pro

ducti

on(M

t) P-value 0.018

2003 2005 2007 2009 2011 2013 20150

5000

10000

15000

20000

25000

Small pelagic group of Galle fishery district

Small Pelagic

Year

Fish

Pro

ducti

on(M

t)

No significant trend

2003 2005 2007 2009 2011 2013 20150

1000

2000

3000

4000

5000

6000

Dermasal group of Galle fishery district

Dermasal

Year

Fish

Pro

ducti

on(M

t) No significant trend

2003 2005 2007 2009 2011 2013 20150

50100150200250300

Prawn group of Galle fishery district

Prawns

YearFi

sh P

rodu

ction

(Mt)

No significant trend

2003 2005 2007 2009 2011 2013 20150

500010000150002000025000300003500040000

Large pelagic group of Kaluthara fishery district

Large Pelagic

Year

Fish

Pro

ducti

on(M

t)

No significant trend

2003 2005 2007 2009 2011 2013 20150

2000400060008000

100001200014000

Small pelagic group of Kaluthara fishery district

Small Pelagic

Year

Fish

Pro

ducti

on(M

t)

No significant trend

2003 2005 2007 2009 2011 2013 20150

1000

2000

3000

4000

5000

Dermasal group of Kaluthara fishery district

Dermasal

Year

Fish

Pro

ducti

on(M

t) No significant trend

2003 2005 2007 2009 2011 2013 20150

100200300400500600700800

Prawn group of Kaluthara fishery District

Prawns

YearFi

sh P

rodu

ction

(Mt)

No significant trend

Active Fishers by districts

1989 1996 1999 2004 2008 2011 2012 2013 2014 20150

2000

4000

6000

8000

10000

12000

14000

16000

18000

20000

Colombo Negombo Chilaw Puttalam Mannar Galle Kaluthara

Year

Num

ber o

f Fis

herm

en

Major fishing craftsIMUL IDAY NTRB

OFRP MTRB

Discussion• Study reveals the main trends for the marine annual production since

1981 to 2015 and trends of commercial fish groups since 2003 to 2015• After the tsunami devastation, trend of the annual production of

Mannar basin is taking a positive state until the year 2015• Mannar basin is highly rich and diverse with natural resources• Negombo and Kaluthara fishery districts are the high productive ones• Natural disasters are directly impact on the production of the Mannar

basin

Conclusion• Negombo fishery district is the highest contributor to the Fish production of

the Mannar basin among all the other districts.

• Colombo fishery district is the least contributor to the Fish production of

the Mannar basin

• Except for Mannar district, all the other districts were showed significant

upward trends for the marine annual production

• Except for Kaluthara and Colombo fishery districts, all other fishery districts

showed positive trends for certain commercial Fish groups

SWOT analysis resultsStrengths

Contributes significantly to the Fish production

Well facilitated harbors in districts of Mannar basin

Availability of valuable Fish resourcesGovernment hand to increase

Multiday boats in fishing after the tsunami devastation

Weaknesses

Developed industries are provisioned in western province

By catch and black Fish landingsHighest post harvest lossesPoor enforcement of rules &

regulations Lack of infrastructure for large scale

fishing

Opportunities

Vast tuna fishery potential, as there is a potential for large pelagic fishes

Fish based eco-tourisms Tax relieve for fishery exports

Threats

Oil spills and waste disposal Illegal fishing Destructive fishing methods & over

exploitation Coral & sand mining Climate changes

References• MOFAR 2014, Fisheries Statistics, Ministry of Fishery and Aquatic

Resource• Jayasinghe, J. M. P. K. (2014). Exploratory drilling for hydrocarbon

resources in the Cauvery basin : Potential impacts on artisanal fishery and fishing grounds of Sri Lanka. Journal of the Marine Biological Association of India, 56, 1–5.

Acknowledgement• Prof.J.M.P.K.Jayasinghe, Senior professor, Department of Aquaculture

and Fisheries, Wayamba University of Sri Lanka

• Ms.Ursla peiris, lecturer, Biostatistics, Wayamba University of Sri Lanka

• Assistant director of district fisheries office in Mannar district

• President of fishery community in the Mannar district • For my family & friends

Additional Information

Main fishing crafts• IMUL - Inboard Multi-day Boats, IDAY - Inboard Single-day Boats,

• OFRP - Out-board engine FiberglassReinforced Plastic Boats,

• MTRB - Motorized Traditional Boats,

• NTRB - Non-motorized Traditional Boats

Puttalam10% Chillaw

9%

Negombo22%Colombo

1%Mannar

6%Galle20%

Kaluthara33%

Large Pelagic Production(Year 2003-2015)

Puttalam20%

Chillaw24%

Negombo20%

Colombo1%

Mannar8%

Galle15%

Kaluthara12%

Small Pelagic production(2003-2015)

Puttalam17%

Chillaw21%

Negombo18%

Colombo3%

Mannar16%

Galle11%

Kaluthara14%

Dermasal group production(2003-2015)

Puttalam29%

Chillaw21%

Negombo37%

Colombo1%

Mannar8%

Galle1%Kaluthara

2%

Prawns group production(2003-2015)

Commercial group’s production as a percentage

Puttalam10%

Chillaw9%

Negombo22%

Colombo1%

Mannar6%

Galle20%

Kaluthara33%

Large Pelagic Production(Year 2003-2015)