International Journal of Aquaculture, 2013, Vol.3, No.14, 73
-
78
http://ija.sophiapublisher.com
77
Figure 3 Correlation of mangrove ecosystem direct benefit
value in the form of coastal waters catch results
increased aquaculture produce in
Silvofishery
pond
correlates with mangrove ratio percentage in
Silvofishery
pond. This confirms by Alam (1997) on converting
ecosystem into pond with average produce of
Rp.6467.799 ha
-1
th
-1
yet causes ecological loss as
much as Rp.33122.013 ha
-1
th
-1
.
According (Zuna, 1998), increased mangrove area not
only increases the direct benefit of the mangrove ecosystem,
but it also increases the biodiversity of flora and fauna
therein. One of the objectives of the
Silvofishery
management isto realize a balanced ecosystem, so in
terms of ecology and economy, mangrove ecosystem
can function optimally and sustainably (Beukeboom et
al., 1992).
2
Conclusion
Based on the analysis results of correlation and regression
equation, it can be concluded that: (1) the primary
aquaculture produce negatively correlates and generates
an equation of y=-0.091x+8.800 with R
2
=0.99, (2)
secondary aquaculture produce positively correlates
and generates an equation of y=0.016x+ 0.239 with
R
2
=0.99, and (3) the direct benefit of mangrove
ecosystem positively correlates and generates an
equation of y=0.485x-0347 with R
2
=0.99.
3
Research Method
3.1
Location and Time
The research was conductedin Samataring village and
TongkeTongke village, East Sinjai Sub-district, Sinjai
District, over six months from July to December 2011.
3.2
Fisheries Production
Toanalyze the primary and secondary aquaculture produce
per
Silvofishery
ratio, interviews with
Silvofishery
pond managers were conducted. The primary and
secondary aquaculture produce include; shrimp, milk
fish, wilds hrimp, and wildfish. At the same time, to
see the direct benefit value of mangrove ecosystems a
literature study was undertaken. The latter covers
reviews of different produces, for instance, shrimp,
milk fish, seaweed, wild shrimp, wildfish, crabs,
shellfish, shrimp and fish fry.
Prior to the analysis of primary aquaculture produce,
secondary aquaculture produce, and the direct benefit
value of mangrove ecosystems per
Silvofishery
ratio, a
conversion from kilograms or units into rupiahs was
conducted to facilitate the analysis of benefit cost ratio.
The results of benefit cost ratio are broken down into
two, namely specific analysison primary aquaculture
and secondary aquaculture, and gener alanalysis on
primary aquaculture, secondary aquaculture and direct
benefit value of mangrove ecosystem.
3.3
Correlation Analysis and Regression Equation
To analyze the correlation and regression equations of
primary aquaculture produce and secondary
aquaculture produce, and the direct benefit value of
mangrove ecosystem in
Silvofishery
pond management,
the following equations are used:
3.3.1
Correlation Analysis
To examine the correlation coefficient between
increased mangrove ecosystem area and increased
primary aquaculture produce, secondary aquaculture
produce, and catch fisheries produce in the form of
direct benefit value per
Silvofishery
pond ratio, the
equation below is used (Kuswadi, 2004):
3.3.2
Regression Equation
To assess the value of regression equation between
increased mangrove ecosystem area and increased
fisheries produce, fisheries and shrimp and fish fry
catch, the equation (Kuswadi, 2004) below is used:
Y=a+bX
where:
Y= Fisheries produce;
X= Mangrove ecosystem area.
References
Alam S., 1997, Kajian Ekonomi-Ekologi Pertmbakan pada Ekosistem
 
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2
2
) ( )
x-(x
) ()
x-(x
=r
y
y
y
y