the 1st International SCESAP Colloquium 20-21 July 2016
The economic loss of seagrass habitat for local fisheries in the eastern coast of Bintan Island
Yudi Wahyudin 1, Luky Adrianto 2, Tridoyo Kusumastanto 3, and Yusli Wardiatno 4 1
Doctoral student at Tropical Marine Economics of Bogor Agricultural University and research associate at Center for Coastal and Marine Resources Studies 2 Faculty of Fisheries and Marine Science Bogor Agricultural University and Center for Coastal and Marine Resources Studies 3 Faculty of Economics and Management Bogor Agricultural University and Center for Coastal and Marine Resources Studies 4 Faculty of Fisheries and Marine Science Bogor Agricultural University
Outline Background and the objective goal Research framework and method
Results and Discussion Conclusion Acknowledgement
General threats of seagrass habitat Seagrass ecosystem in the world globally decreased as well as quality and quantity (Orth et al, 2006; Waycot, 2009; Unsworth and Cullen, 2010). The increasing of degradation and resources damage relatively happened in the developing countries (Schramm and Warford, 1989). The excessive utilization of several related and associated biotas with seagrass habitat, such as fishes, gastropods, sea cucumber, give the biggest threat to seagrass habitat.
The increasing of population growth is equivalent directly to the need of human and could increase the utilization frequencies of related biotas with seagrass ecosystem (Fortes, 1991; de la Torre-Castro and Ronnback, 2004; Unsworth and Cullen, 2010) Need seagrass ecosystem based management as the main priority for local economic development and ecosystem conservation (Unsworth et al, 2010).
Recognizing ecosystem-wide connection and effects that different components of the ecosystem can have on each other (UNEP, 2011; Pomeroy et al, 2013)
The connectivity of seagrass habitat and fisheries activity
Seagrass ecosystem as the habitat that has a capability to support ecosystem services, such as captured fishes by fishermen (de la Torre-Castro et al, 2014)
ecosystem services and social well-being
Sources: Millenium Ecosystem Assessment (2005)
Objective of this study
The objective goal of this research was measuring the potential economic loss from seagrass habitat for local fisheries in the eastern coast of Bintan Island Indonesia
https://www.google.co.id/maps/@0.3215075,119.019165,5.25z
The area of study
The technical research framework based seagrass social ecological system (SES)
Ecological Process
Seagrass Ecological system Seagrass Residence Index (SRI)
Seagrass Ecosystem Services Human system problem
Economics of seagrass habitat loss (McArthur & Boland, 2006)
overuse
Good or service
Benefit and/or avoided cost Valuation method
Cost
Net value
Seagrass Social-Ecological System (SES)
Sources: Gilbert and Jansenn (1998); Adrianto et al (2013)
A general slogan of resources economics
The Model of Seagrass Catch-Effort (McArthur & Boland, 2006)
Ci f Ei i Ei i The data then would be log transformed and the median could be added to each the seagrass area observation to eliminate the zero data points (McArthur and Boland, 2006)
s 1i 2i s Ci 1i 2i s Ei i 1i Ei 2i Ei s i
ln Ci b1i ln Ei b2i ln Ei s i i
ln C i
lnE
Ci Ei
b1i b2 i
b1i i
Ei
b2 i
s i b
2i
s i b
2i
i Ei
1i
i
s i
2i
i
Estimated Value of Seagrass Loss Model (McArthur & Boland, 2006)
CLi ,D Cs0 Cs1
i ,D
CLi ,D CLcom,i ,D CLrec,i ,D CLdis,i ,D
EAVSL EAVSLi ,D VSLi ,D pi CLi ,D i ,D
VCLi ,D pi CLi ,D
i ,D
i ,D
The status of seagrass habitat and related dominant fishes
Related dominat fish production from seagrass area
The status of seagrass habitat and related dominant fishes
Catch per unit effort (CPUE)
The status of seagrass habitat and related dominant fishes 1400.00 1200.00 1000.00 y = 3E+109e-0.122x R² = 0.7112
800.00 600.00
400.00
The area of seagrass
200.00 0.00 2008
2010
2012
the area of seagrass habitat
2014
2016
2018
Expon. (the area of seagrass habitat)
2020
The relation between seagrass habitat and CPUE 14 12 10 8 6 4 2 0
y = 3.4917e0.0006x R² = 0.371
0.00
500.00
1000.00
seagrass habitat area and CPUE
1500.00
2000.00
Expon. (seagrass habitat area and CPUE)
2500.00
Seagrass Residence Index (Adrianto et al, 2014) Nr
General Name
Scientific Name
SRI
1
Ornate emperor
Lethrinus ornatus
0.92
2
Orrange-dotted tuskfish
Choerodon anchorago
1.00
3
Pasific yellowtail emperor
Lethrinus atkinsoni
0.94
2i
Economic loss of seagrass habitat for local fisheries Nr
General Name
Scientific Name
1i
2i
R2
(SRI)
(%)
CL (kg)
VCL (IDR milion)
1
Ornate emperor
Lethrinus ornatus
1.06
0.92
9.40
3569.90
35.70
2
Orrange-dotted tuskfish
Choerodon anchorago
0.87
1.00
12.89
322.13
2.25
3
Pasific yellowtail emperor
Lethrinus atkinsoni
1.24
0.94
22.74
27534.94
220.28
31426.97
258.23
Total
Comparing result of economic value of seagrass ecosystem between CS & EHL approaches and other value referenced from the world Consumer Surplus Approach
Economic Habitat Loss (McArthur & Boland Model)
The provisioning services of seagrass ecosystem from fish as food : IDR 246.02 – 339.55 million per hectare per year
Catch loss value estimation due to losing seagrass habitat (12.2% per year or 56,06 hectare per year) = IDR 258.23 milion
The provisioning services of seagrass ecosystem from other biota as food : IDR 17.18 – 29.42 million per hectare per year
The economic loss of seagrass habitat = IDR 4.36 million per hectare per year
Other References
Nr References Value (US$/yr/hr) 1 Costanza et al (2014) 28910 2 de Groot et al (2002) 2-2761 3 Costanza et al (1997) 19002 4 PKSPL-IPB (2012) 5 Haddad (2012)
IDR milion 408.11 1.72 540.39 15.90 519.44
Ecosystem seagrass ecosystem in general seagrass seagrass seagrass
Services all services food service nutrient cycling habitat of nursery fish production
Conclusion The result shows that there is a significant interconnected between seagrass degradation and the economic loss of local fisheries in the period of 2012-2014. The habitat loss in the area of study was about 12.2% per year or 56,06 hectare per year.
Catch loss value estimation due to losing seagrass habitat in the area of study based on McArthur and Boland Model estimated around IDR 258.23 million or IDR 4.36 million per hectare per year. The value of seagrass from different and detail services showed in between IDR 1.72 – 540.39 milions. Hope, this value will increase the awareness of the local community and other stakeholders in the area of study to be more concern on this particular seagrass habitat and will be considered as a management input in the future.
Acknowledgement Dr. Luky Adrianto as a team leader of the umbrella research agendas granted by BOPTN 2013-2014 Prof. Tridoyo Kusumastanto and Dr. Yusli Wardiatno The leaders and their communities in the villages of study (Berakit, Malang Rapat and Teluk Bakau) The director and staffs of CCMRS-IPB
the 1st International SCESAP Colloquium 20-21 July 2016
Thank You YUDI WAHYUDIN
[email protected];
[email protected] (email) – 08111175079 (WA) – 08121100090 (call) – @yudiifal (twitter) – http://yudiwahyudin2013blog.wordpress.com (blog) – https://komitmenku.wordpress.com (blog) – https://www.researchgate.net/profile/Yudi_Wahyudin2 (RG)
