Lampiran 7 Keseimbangan Bioekonomi Kabupaten Tegal dengan Maple
1. Analisis Bioekonomi Kabupaten Tegal
r:=1.98721; K:=798.09; q:=0.0001; p:=5750000; c:=94000;
r := 1.98721 K := 798.09
q := 0.0001 p := 5750000
c := 94000
Solve From Shaefer Curve to Yield-Effort Curve
fx:=rx1-xK;
f x := 1.98721 x 1 - 0.001252991517 x
plotfx,x=0..1000,growth=0..400;
Production function in the form of Coubb-Douglass
h:=qxE;
h := 0.0001 x E
g:=solvefx=h,x;
g := 0., 798.0900002 - 0.04016133172 E
y:=qEK-0.04016133172E;
y := 0.0001 E 798.09 - 0.04016133172 E
ploty,E=0..20000, yield=0..400;
Economics Parts of Gordon Schaefer Model TC=Total cost which is linier in effort, TR=Total Revenue which quadratic in effort
because TR=price multiplied by yield production
TC:=cE;
TC := 94000 E
TR:=py;
TR := 575.0000 E 798.09 - 0.04016133172 E
plotTR,E=0..20000, Revenue=0..3000000000,colour=blue;
plot{TR,TC},E=0..20000, Revenue=0..2500000000;
This parts solves equilibrium open access and sole owner:OAX=Open Access Biomass, OAE=Open Access Effort, SOE=Sole Owner Effort Equilibrium
OAX:=cpq;
OAX := 163.4782609
OAE:=solveTR-TC=0,E;
OAE := 0., 15801.56115
OAH:=qOAX15801.56115;
OAH := 258.3211736
MR:=diffTR,E;
MR := 4.589017500 10
5
- 46.18553148 E
MC:=diffTC,E;
MC := 94000
SOE:=solveMR-MC=0,E;
SOE := 7900.780576
In this simple example it proves that effort at open access 15801.561 trip is much higher than sole owner 7900.7806 trip
This calculating rent from sole owner
TRSO:=pqSOEK-0.04016133172SOE;
TRSO := 2.184177703 10
9
TCSO:=cSOE;
TCSO := 7.426733741 10
8
RENTSO:=TRSO-TCSO;
RENTSO := 1.441504329 10
9
HSO:=qSOEK-0.04016133172SOE;
HSO := 379.8569919
XSO:=HSOqSOE;
XSO := 480.7841304
Lampiran 8 Persepsi nelayan pada dimensi ekonomi berdasarkan data primer tahun 2005
25 50
75 100
P.Bugis J.Udang
P.Gemplo Bundes
Rampus
Perikanan Tangkap P
e rs
epsi N
e layan
Pemilik lokal Pemilik lokal non lokal
Pemilik luar
a. Sifat kepemilikan armada perikanan tangkap
25 50
75 100
P.Bugis J.Udang
P.Gemplo Bundes
Rampus
Perikanan Tangkap P
er s
ep si
N el
aya n
Tidak ada Berat
Sangat Berat
b. Pengaruh penurunan subsidi kenaikan harga BBM terhadap kegiatan penangkapan
