Swimmer Crab Culture in The Ponds

1. MAIN CENTER FOR BRACKISHWATER
AQUACULTURE
JEPARA - 2016

2.  Swimmer crab included in to important export comodity
after shrimp and fish.
 the raw material for crab meat processing plant in getting
the swimmer crab catches of fishermen at the sea.
 Indonesian ministry regulation no.1 on year 2015
regarding prohibition of catching lobster, swimmer crab
and mud crab.
 The solution is to do aquaculture in the pond.
 So far, mostly people think that swimmer crab culture in
the pond is impossible.
 MCBA Jepara has culture swimmer crab in the pond since
2002 till 2006.

3. Parameter 2002 2003 2005 2006
Size of pond (m2) 1,000 7,000 1,000 (2
ponds)
2,000
Stock density (pcs/m2) 3 (3,750
pcs)
5 (35,000
pcs)
5 (5,000
pcs/ponds)
3 (6,000
pcs)
Duration culture (month) 3.5 4 4 4
Culture System Mono Mono Mono Mono
Feed -Artificial
feed
-- Fresh
fish
-Artificial
feed.
-- Fresh fish
Artificial feed
(MCBA and
comersiil
pellet)
Fresh
feed
Harvest (kg) 200 350 49 / 44 150
Size (pcs/kg) 8 - 10 10 - 11 13 - 15 10 – 11
SR (%) 55 11 14 / 15 28
Salinity (ppt) 33 - 37 33 - 40 30 - 37 25 - 35

4. 105
89
65
62
90
0
20
40
60
80
100
120
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
Weight(g)
Weeks
2002 2003 2005(A) 2005 (B) 2006
Its showing that our swimmer rab culture have weight increase in
every period culture.

5. 11.2
0
2
4
6
8
10
12
0 2 4 6 8 10 12 14 16
Carapax’sWidth(cms)
Weeks
2006
The same also found in crapax width. The data only available on
2006

6.  Problems :
1. Swimmer crab’s SR is still low
2. Dependence on fresh feed, although there is change to
give artificial feed.
 Based on Ministry’s Regulation No. 01 in 2015, MCBA
Jepara started again to culture swimmer crab in the
pond in both ponds belongs to MCBA and the farmers.
 In 2015, we have culture swimmer crab in MCBA’s pond
and gave baby swimmer crab’s aid to farmers group in 3
districts, ie. Pangandaran, Pati and Demak to culture
swimmer crab in both ponds and mangrove’s area.

7. Parameter Date of stock : Apryl 28, 2015
Size of pond (m2) 7,000
Stock density (pcs/m2) 2 (14,600 pcs crablet with carapax width 2 – 2.5 cm)
Duration culture (month) 5
Culture System Policulture (seaweed, milkfish and swimmer crab)
Feed -Fresh feed 2 – 3 times/day based on biomass
Harvest (kg) 146 kg. (swimmer crab), 3.000 kg (seaweed), and
Milkfish (size 6-8 pcs/kg)
Size (pcs/kg) 10 - 11
SR (%) of Swimmer crab 10
Salinity (ppt) 30 - 36

9.  MCBA Jepara, gives baby swimmer crab’s
aid to farmers group, technical input and do
final monitoring of activity.
 Operational fund and operational activity was
done by farmer’s group, Theirself.

10. Group’s
Name
Address Culture System Monitoring
FINTOUR Bojongsalaw
e,
Karangjaladr
i Village,
Parigi,
Pangandara
n District,
West Java,
Indonesia
• Date of stock =
June 30, 2015.
• Pond size = 5.000
m2.
• Polyculture system
of 15.000 pcs
swimmer crab crablet
with size 0,5 - 1 cms,
Juvenile milkfish
with size 3-5 cms as
much 700 pcs.
Sept 28, 2015 :
1. No sea water show off
get in to the pond, hot
themperature and high
salinity (40 ppt).
2. Milkfish and swimmer
crab died.
3. Size : swimmer crab
harvested as much 12
kgs, with size 35
pcs/kgs (28,5 – 30
g/pcs) and milkfish as
much 18 kgs, with size
12 pcs/kgs (83,3 g/pcs).
4. SR of swimmer crab =
2,8 % (420 pcs).

12. Group
Name
Address Culture System
SILVOFIS
HERIES
Bojongsalawe,
Karangjaladri
Village, Parigi,
Pangandaran
District, West
Java, Indonesia
• Date of stock = Dec 26,
2015.
• Extentsion of mangrove’s
area = 40,000 m2.
• The area has pen culture
with hapa net.
• Polyculture system of
Penaeus monodon shrimp,
milkfish and swimmer crab.
• Swimmer crab (20.000 pcs,
with carapax’s width 1 – 2
cms).
• Penaeus monodon shrimp
(20.000 pcs, age Pl-20)
• Juvenile Milkfish 2.000 pcs
(with size 5 – 7 cms)

14. Monitoring
February 29, 2016 Apryl 15, 2016
1. Salinity 20 – 15 ppt;
2. Size =
• Penaeus monodon shrimp
10 – 15 grams; milkfish 15
– 20 pcs/kgs; swimmer
crab 30 – 50 g/pcs
(squared matches);
• They didn’t do harvesting
due to the place is in
mangrove’s
(conservation) area so
they let Them for
continuity.
1. Swimmer crab has been
harvested (they took the
male only) with size 3 - 4
pcs/kgs. ± 100 – 150 kgs.
2. They let the female
mature ovaries so they
can get many baby
swimmer crab in
mangrove’s area.

15. Group
Name
Address Cultivation System
RUKUN
NELAYAN
Bojongsalawe,
Karangjaladri
Village, Parigi,
Pangandaran
District, West
Java, Indonesia.
• Date of Stock = December
26, 2015.
• They used pool which made
by tsunami with size up till
20,000 m2.
• Stock density = Swimmer
crab : 20.000 pcs (carapax’s
width 1 - 1,5 cms)

17. Monitoring
February 29, 2016 Apryl 15, 2016
1. Salinity 32 ppt;
2. Size = Swimmer crab :
weight 30 – 50 g/pcs.
3. Continueable cultivation,
they don’t harvesting.
1. Partially harvesting using
plaited rattan fish trap.
2. Caught size 3 - 4 pcs/kgs.
± 50 – 75 kgs.

18. Group
Name
Address Cultivation System Monitoring
KADUS
DEDY
Bojongsalaw
e,
Karangjaladr
i Village,
Parigi,
Pangandara
n District,
West Java,
Indonesia
• Date of spread :
December 26, 2015.
• Pond extents =
5.000 m2.
• Polyculture system
of Penaeus monodon
shrimp and swimmer
crab.
• Amount : 2.000 pcs
swimmer crab crablet
with size 1 – 1,5
cms, and Penaeus
monodon shrimp
5.000 pcs with size
Pl-20.
February 29, 2016:
1. Penaeus monodon
shrimp, with size 5 – 8
g/pcs.
2. Swimmer crab with
weight 30 – 40 g/pcs.
Apryl 15, 2016 :
1. Swimmer crab has
harvested ± 20 – 30
kgs. Size 5-8 pcs/kg
2. Penaeus monodon
shrimp died.

20. Group
Name
Address Cultivation System Monitoring
BERKAH
ANUGRAH
Karang Jaladri
Village, Parigi,
Pangandaran
District, West
Java,
Indonesia
• Date of stock
December 26, 2015.
• Pond size = 20,000
m2.
• Polyculture System of
Penaeus monodon
shrimp and swimmer
crab.
• Amount : 20.000 pcs
swimmer crab crablet
with width carapax 1 –
1,5 cms, and Penaeus
monodon shrimp as
much 50.000 pcs in
size Pl-20.
February 29, 2016:
1. Salinity 18 ppt.
2. Penaeus monodon shrimp,
with size 8 - 10 g/pcs.
3. Swimmer crab with size 30
– 40 g/pcs.
Apryl 15,2016 :
1. Swimmer crab has been
harvested using plaited
rattan fish trap with size 6
– 8 pcs/kgs (150 g/pcs). ±
50 - 70 kg.
2. Penaeus monodon shrimp
not harvesting yet but
They can’t grow up , They
stable in size 10 – 15
g/pcs.

22. Group
Name
Address Cultivation System Monitoring
KUB.
PUTRA AL-
BAROKAH
Betahwalang
Village,
Bonang,
Demak
District,
Central
Java,
Indonesia.
• Date of stock :
November 7, 2015.
• Pond size = 3.000
m2
• Stock quantity of
swimmer crab :
3.750 pcs crablet
with size 2 – 3 cms.
• Salinity when stock
= 35 ppt
December 7, 2015
1. Salinity 18 ppt.
2. Carapax’s width of
swimmer crab 3 – 4
cms with weight 10 - 15
g/pcs.
Januari 7, 2016 :
1. Salinty 10 ppt .
2. A lot of swimmer crab
was died, the water
themperature was high
due to season changing
to rain so the air was
hot.
3. Weight 30 g/ pcs,
carapax’s width 4 – 5
cms.
January 20, 2016
1. Salinity 3 ppt.
2. All of the swimmer crab

24. Group Name Address Culture System
KELOMPOK
NELAYAN
BINO
MAKMUR
Keboromo Village,
Tayu, Pati District,
Central Java,
Indonesia
• Polyculture System of milkfish and
swimmer crab.
• Ponds 1 with size pond 10,000 m2,
ponds 2 with size 3000 m2.
• Stock quantity in pond 1 on December
17, 2015 : 15.000 pcs of swimmer crab
with carapax’s width 1 – 1,5 cms and
5.000 pcs of milkfish bunch with age 1
month cultivation.
• Stock quantity in pond 2 on December
28, 2015 : 3.000 pcs (carapax’s width 2
– 2,5 cms) and 5.000 pcs of juvenile
milkfish with age 1 month cultivation.
• Salinity when stock = 34 ppt.

26. Monitoring
Ponds 1 Ponds 2
1. January 22, 2016.
• Salinity 32 ppt; carapax’s width
of swimmer crab 3 cms.
2. February 1, 2016.
• Salinity 15 ppt;
• A lot of swimmer crab was died,
carapax’s width 4 cms.
3. March 1, 2016.
• Salinity 3 ppt,
• All of the swimmer crab was
died.
• Milkfish still able to harvested
with weight 100 – 120 grams/pcsr
(10 – 8 pcs/kgs)
1. January 22, 2016.
• Salinity 32 ppt; carapax’s width
of swimmer crab 3 cms.
2. February 1, 2016.
• Salinity 15 ppt;
• A lot of swimmer crab was died,
carapax’s width 4 cms.
3. March 1, 2016.
• Salinity 3 ppt,
• All of the swimmer crab was
died.
• Milkfish still able to harvested
with weight 100 – 120 grams/pcsr
(10 – 8 pcs/kgs)

27.  Swimmer crab cultivation able to be done in
the pond.
 Swimmer crab cultivation as conservation of
mangrove area could be done using pen
culture with hapa net.

28.  Swimmer crab culture in ponds must be
considered with growing season, stocking
densities , feeding strategy and cannibalism
rate reduction by providing shelter.
 To increase the productivity of ponds , we
recommend that polyculture system can be
used during swimmer crab culture (seaweed /
milkfish/ tiger shrimp).
 We need to do a study of feed formulations
which is made to raise the swimmer crab.