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Trend analysis of commercial fish production in Mannar basin.
- 1. Trends analysis of commercial Fish production in Mannar basin of Sri Lanka Nalinda Ambagamuwa (128529) Department of Aquaculture & Fisheries Faculty of Livestock Fisheries & Nutrition Wayamba University of Sri Lanka
- 2. Introduction • Mannar basin is rich with numerous types of Fish resources and other commercially important resources • Has both coastal and off-shore fishery • Directly involved with the Fish industry in Sri Lanka • Consists with seven major fishery districts • Galle, Kaluthara, Colombo, Negombo, Chillaw, Puttalam and Mannar N
- 3. Rationale • Lack of findings to determine the current fish production trends of the Mannar basin • There are no much research findings to make efficient policy decision to conserve the fishery resources in Mannar basin
- 4. Major problems • Civil war disturbance ( Mainly in Mannar district) • Natural disasters (Tsunami, storms, cyclones) • Illegal fishing activities- Indian poaching • Sand mining • Coral mining • Hydrocarbon exploration activities
- 5. 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 matters in the selected fishing communities • To evaluate the socio-economic situation of the selected fishery districts
- 6. 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
- 7. Data were collected from; Ministry of Fisheries and Aquatic Resource Development Relevant district fisheries offices The Department of Census & Statistics of Sri Lanka National Aquatic Resources Research & development Agency (NARA Year books)
- 8. 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
- 9. Results
- 10. 0 10000 20000 30000 40000 50000 60000 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 FishProduction(Mt) Year Annual marine fish production of fishery districts in the Mannar basin Kaluthara Galle Colombo Negombo Chilaw Puttalam Mannar
- 11. -5 -4 -3 -2 -1 0 1 2 3 4 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 Uti&Vti Year Marine Fish Production Trend of the Mannar fishery district u(ti) v(ti) No any significant turning point
- 12. -3 -2 -1 0 1 2 3 4 5 6 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 Uti&Vti Year Marine Fish Production Trend of the Puttalam fishery district u(ti) v(ti)
- 13. 0 5000 10000 15000 20000 25000 30000 35000 40000 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 FishProduction(Mt) Year Marine Sector Fish Catch of Chillaw District (Mt) Chilaw P-value 0.00P-value 0.00 -3 -2 -1 0 1 2 3 4 5 6 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 Uti&Vti Year Marine Fish Production Trend of the Chillaw fishery district u(ti) v(ti)
- 14. -3 -2 -1 0 1 2 3 4 5 6 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 Uti&Vti Year Marine Fish Production Trend of the Negombo fishery district u(ti) v(ti)
- 15. -3 -2 -1 0 1 2 3 4 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 Uti&Vti Year Marine Fish Production Trend of the Colombo fishery district u(ti) v(ti)
- 16. -3 -2 -1 0 1 2 3 4 5 6 7 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 Uti&Vti Year Marine Fish Production Trend of the Kaluthara fishery district u(ti) v(ti)
- 17. -3 -2 -1 0 1 2 3 4 5 6 7 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 Uti&Vti Year Marine Fish Production Trend of the Galle fishery district u(ti) v(ti)
- 18. 0 50000 100000 150000 200000 250000 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 FishProduction(Mt) Year Annual Fish production of the Mannar basin Mannar basin Production Massive dropP-value 0.00 P-value 0.00
- 19. 0 5000 10000 15000 20000 25000 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 Marine Sector Fish Catch of Mannar fishery district (Mt) Mannar No significant trend
- 20. 0 5000 10000 15000 20000 25000 30000 35000 40000 45000 50000 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 Marine Sector Fish Catch of Puttalam fishery district (Mt) Puttalam P-value – 0.00 P-value – 0.00
- 21. 0 5000 10000 15000 20000 25000 30000 35000 40000 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 FishProduction(Mt) Year Marine Sector Fish Catch of Chillaw fishery district (Mt) Chilaw P-value – 0.00 P-value – 0.00
- 22. 0 5000 10000 15000 20000 25000 30000 35000 40000 45000 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 FishProduction(Mt) Year Marine annual production of Negombo fishery District (Mt) Negombo P-value – 0.00
- 23. 0 1000 2000 3000 4000 5000 6000 7000 8000 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 Marine Sector Fish Catch of Colombo fishery district (Mt) Colombo P-value – 0.00 P-value – 0.014
- 24. 0 10000 20000 30000 40000 50000 60000 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 FishProduction(Mt) Year Marine Sector Fish production of Kaluthara fishery district (Mt) Kaluthara P-value – 0.014 P-value – 0.003
- 25. 0 10000 20000 30000 40000 50000 60000 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 FishProduction(Mt) Year Marine Sector Fish Catch of Galle fishery district (Mt) Galle P-value – 0.00 P-value – 0.00
- 26. 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%
- 27. Significant trends of commercially important Fish groups
- 28. 0 2000 4000 6000 8000 10000 12000 14000 2003 2005 2007 2009 2011 2013 2015 FishProduction(Mt) Year Large pelagic group of Mannar fishery district Large Pelagic 0 2000 4000 6000 8000 10000 12000 2003 2005 2007 2009 2011 2013 2015 FishProduction(Mt) Year Small pelagic group of Mannar fishery district Small Pelagic No significant trend 0 1000 2000 3000 4000 5000 2003 2005 2007 2009 2011 2013 2015 FishProduction(Mt) Year Dermasal group of Mannar fishery district Dermasal No significant trend 0 500 1000 1500 2000 2003 2005 2007 2009 2011 2013 2015 FishProduction(Mt) Year Prawn group of Mannar fishery district Prawns P-value 0.006 P-value 0.017
- 29. 0 2000 4000 6000 8000 10000 12000 14000 2003 2005 2007 2009 2011 2013 2015 FishProduction(Mt) Year Large pelagic group of Puttalam fishery district Large Pelagic 0 5000 10000 15000 20000 2003 2005 2007 2009 2011 2013 2015 FishProduction(Mt) Year Small pelagic group of Puttalam fishery district Small Pelagic 0 1000 2000 3000 4000 5000 6000 7000 2003 2005 2007 2009 2011 2013 2015 FishProduction(Mt) Year Dermasal Group of Puttalam district Dermasal No significant trend 0 1000 2000 3000 4000 5000 2003 2005 2007 2009 2011 2013 2015 FishProduction(Mt) Year Prawn Group of Puttalam fishery district Prawns P-value 0.001 No significant trend P-value 0.001
- 30. 0 2000 4000 6000 8000 10000 12000 2003 2005 2007 2009 2011 2013 2015 FishProduction(Mt) Year Large pelagic group of Chillaw fishery District Large Pelagic 0 5000 10000 15000 20000 2003 2005 2007 2009 2011 2013 2015 FishProduction(Mt) Year Small pelagic group of Chillaw fishery district Small Pelagic No significant trend 0 1000 2000 3000 4000 5000 6000 7000 2003 2005 2007 2009 2011 2013 2015 FishProduction(Mt) Year Dermasal group of Chillaw fishery district Dermasal P-value 0.00 0 1000 2000 3000 4000 2003 2005 2007 2009 2011 2013 2015 FishProduction(Mt) Year Prawn group of Chillaw fishery district Prawns P-value 0.002 P-value 0.006
- 31. 0 5000 10000 15000 20000 25000 2003 2005 2007 2009 2011 2013 2015 FishProduction(Mt) Year Large pelagic group of Negombo fishery district Large Pelagic No significant trend 0 2000 4000 6000 8000 10000 12000 14000 2003 2005 2007 2009 2011 2013 2015 FishProduction(Mt) Year Small pelagic group of Negombo fishery district Small Pelagic 0 2000 4000 6000 8000 2003 2005 2007 2009 2011 2013 2015 FishProduction(Mt) Year Dermasal group of Negombo fishery district Dermasal P-value 0.00 0 1000 2000 3000 4000 5000 2003 2005 2007 2009 2011 2013 2015 FishProduction(Mt) Year Prawn group of Negombo fishery district Prawns No significant trend P-value 0.021
- 32. 0 1000 2000 3000 4000 5000 2003 2005 2007 2009 2011 2013 2015 FishProduction(Mt) Year Large pelagic group of Colombo fishery district Large Pelagic No significant trend 0 500 1000 1500 2000 2003 2005 2007 2009 2011 2013 2015 FishProduction(Mt) Year Small pelagic group of Colombo fishery district Small Pelagic No significant trend 0 500 1000 1500 2000 2003 2005 2007 2009 2011 2013 2015 FishProduction(Mt) Year Dermasal group of Colombo fishery district Dermasal No significant trend 0 50 100 150 200 250 300 350 400 2003 2005 2007 2009 2011 2013 2015 FishProduction(Mt) Year Prawn group of Colombo fishery district Prawns No significant trend
- 33. 0 10000 20000 30000 40000 2003 2005 2007 2009 2011 2013 2015 FishProduction(Mt) Year Large pelagic group of Kaluthara fishery district Large Pelagic No significant trend 0 2000 4000 6000 8000 10000 12000 14000 2003 2005 2007 2009 2011 2013 2015 FishProduction(Mt) Year Small pelagic group of Kaluthara fishery district Small Pelagic No significant trend 0 1000 2000 3000 4000 5000 2003 2005 2007 2009 2011 2013 2015 FishProduction(Mt) Year Dermasal group of Kaluthara fishery district Dermasal No significant trend 0 200 400 600 800 2003 2005 2007 2009 2011 2013 2015 FishProduction(Mt) Year Prawn group of Kaluthara fishery District Prawns No significant trend
- 34. 0 5000 10000 15000 20000 25000 30000 2003 2005 2007 2009 2011 2013 2015 FishProduction(Mt) Year Large pelagic group of Galle fishery district Large Pelagic P-value 0.018 0 5000 10000 15000 20000 25000 2003 2005 2007 2009 2011 2013 2015 FishProduction(Mt) Year Small pelagic group of Galle fishery district Small Pelagic No significant trend 0 1000 2000 3000 4000 5000 6000 2003 2005 2007 2009 2011 2013 2015 FishProduction(Mt) Year Dermasal group of Galle fishery district Dermasal No significant trend 0 50 100 150 200 250 300 2003 2005 2007 2009 2011 2013 2015 FishProduction(Mt) Year Prawn group of Galle fishery district Prawns No significant trend
- 35. Active Fishers by districts 0 2000 4000 6000 8000 10000 12000 14000 16000 18000 20000 1989 1996 1999 2004 2008 2011 2012 2013 2014 2015 NumberofFishermen Year Colombo Negombo Chilaw Puttalam Mannar Galle Kaluthara
- 36. Major fishing crafts IMUL IDAY NTRB OFRP MTRB
- 37. SWOT analysis results Strengths Contributes significantly to the Fish production Well facilitated harbors in districts of Mannar basin Availability of valuable Fish resources Government hand to increase Multiday boats in fishing after the tsunami devastation Weaknesses Developed industries are provisioned in western province By catch issues and black Fish landings Highest post harvest losses Poor enforcement of rules & regulations Lack of infrastructure for large scale fishing
- 38. Opportunities Vast tuna fishery potential, as there is a potential for large pelagic fishes Fish based eco-tourism Tax relieve for fishery exports Threats Oil spills and waste disposal Illegal fishing Destructive fishing methods & over exploitation Coral & sand mining Climate changes
- 39. 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 districts • Natural disasters are directly impact on the production of the Mannar basin
- 40. 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
- 41. Suggestions • Implemented rules and regulation have to be inspect regularly • Off fishing seasons has to be announced if possible • Government has to aware the fishermen about current situations of the fishery
- 42. 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.
- 43. 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
- 45. District Commercial group Trend type Trend Duration HPV(Mt) HPV Year LPV(Mt) LPV Year Puttalam Large Pelagic Upward trend 2005 to 2014 12340 2014 3480 2003 Small Pelagic No trend ****** 18200 2015 4130 2006 Dermasal No trend ****** 6180 2015 780 2005 Prawns No trend ****** 4130 2013 780 2008 Chillaw Large Pelagic Upward trend 2005 to 2013 11020 2013 3610 2005 Small Pelagic No trend ****** 16520 2013 3560 2005 Dermasal Upward trend 2005 to 2013 6220 2013 1690 2005 Prawns Upward trend 2003 to 2009 3370 2013 260 & 270 2003 & 2005 Negombo Large Pelagic Upward trend 2003 to 2008 20320 2007 10220 2005 Small Pelagic Upward trend 2003 to 2009 12850 2015 3070 2005 Dermasal Upward trend 2003 to 2011 5880 2014 1830 2005 Prawns No trend ****** 4520 2013 1360 2005
- 46. District Commercial group Trend type Trend Duration HPV(Mt) HPV Year LPV(Mt) LPV Year Colombo Large Pelagic No trend ****** 4830 2014 90 2007 Small Pelagic No trend ****** 1780 2011 80 2005 Dermasal No trend ****** 1750 2015 130 2007 Prawns No trend ****** 380 2015 10 2004 Mannar Large Pelagic Upward trend 2008 to 2014 11440 2014 1430 2004 Small Pelagic No trend ****** 9980 2004 710 2009 Dermasal No trend ****** 4630 2014 1630 2007 Prawns Upward trend 2008 to 2014 1740 2014 170 2008
- 47. District Commercial group Trend type Trend Duration HPV(Mt) HPV Year LPV(Mt) LPV Year Galle Large Pelagic Upward & down ward 2003 to 2008/ 2008 to 2014 28420 2014 6100 2008 Small Pelagic Upward trend 2003 to 2008 22710 2015 1610 2003 Dermasal No trend ****** 5480 2015 390 2008 Prawns No trend ****** 240 2014 20 2006 & 2008 Kaluthara Large Pelagic No trend ****** 34020 2011 9480 2005 Small Pelagic No trend ****** 13120 2011 10 2014 Dermasal No trend ****** 4620 2013 3010 2004 Prawns No trend ****** 690 2014 10 2003&2004
- 48. 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
- 50. Puttalam 10%Chillaw 9% Negombo 22%Colombo 1%Mannar 6% Galle 20% Kaluthara 32% LARGE PELAGIC PRODUCTION (YEAR 2003-2015) Puttalam 20% Chillaw 24% Negombo 20% Colombo 1% Mannar 8% Galle 15% Kaluthara 12% SMALL PELAGIC PRODUCTION(2003-2015) Puttalam 17% Chillaw 21% Negombo 18% Colombo 3% Mannar 16% Galle 11% Kaluthara 14% DERMASAL GROUP PRODUCTION(2003-2015) Puttalam 29% Chillaw 21% Negombo 38% Colombo 1% Mannar 8% Galle 1% Kaluthara 2% PRAWNS GROUP PRODUCTION(2003-2015)
- 51. Commercial group’s production as a percentage Puttalam 10% Chillaw 9% Negombo 22% Colombo 1% Mannar 6% Galle 20% Kaluthara 32% LARGE PELAGIC PRODUCTION (YEAR 2003-2015)