Crab Sustainability Project In Kungkrabaen, Chanthaburi ,

1. Environmental Conservation
Activity
Crab Sustainability Project In Kungkrabaen,
Chanthaburi
Sithikone Mounlamai
Amir Kamyabi
Piyathida T.
Remo Bryan Nyffenegger
5628330
5637832
5337832
5628105
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2. Outline
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3. Introduction
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Many parts of Thailand attach to the sea
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Career opportunities
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Overfishing problem
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Caused Population of some marine
species to decrease

4. The Blue Swimmer Crab
(Portunus Pelagicus)
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large 15-25cm
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The male crabs
have a heavy
blue color
pattern
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females tend to
be less
conspicuous
with
brown/greenish
color patterns
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One female
produce
300,000-700,000
eggs

5. Mr. Thakorn
Kakhaikitthawat
The local senior
fisheries biologist
dedicated to saving and
conserving the
ecosystem around
Kungkrabaen,
Chanthaburi

6. Description
- Staff member at the royal
development study center explained
how they trap the crabs.
- Before they used speed boats to
bring them back the coast, but the
crabs and their eggs died due to
motor oil contamination.

7. - After catching them, the crabs and eggs are separated.
- We simply collected the eggs with a brush by rubbing the
brush softly against the eggs and collect them into the bucket
with the sea water

8. - After the eggs hatch they release them to the sea.
- The trap’s web magnitude should be 2.5 cm
- The price for these cages are 30-40 Baht.
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They usually tell the locals not to catch juvenile
crabs or
listen.
crabs with eggs, but some just don’t

9. -
Unhatched are at the bottom, hatched eggs are on the top.
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Water circulation flows from one barrel to the next,
- The problem with this method is, the eggs that are dead
are mixed at the bottom with the other unhatched eggs.
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Solution: cylinder shaped barrels

10. WE bought 6 blue swimmer crabs with eggs and went back to the Royal
development study center to go through the process of separating the eggs
with the brush we learned earlier, and after we put the eggs inside the
barrels, we freed the crabs into the sea.

11. Benefits
-Fishermen can catch more crabs as
crab population increases, people can
harvest crabs all year
-Fishermen’s income has increased to
20,000/ a month
-Change fishermen's attitude/ethics.
-People learns to give back to nature.

12. Disadvantages
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Some tourists still harvest
crabs in conservation area.
They also harvest baby crabs
and pregnant crabs. Even
though they're asked not to do
that.
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There's too little qualified staff.
- Some local food shop still
harvest pregnant crabs for sell.

13. Conclusion
 Blue swimmer crabs on their way to recovery
 Local meeting January 2014
+ Discussing crab sustainability project
+ Presenting current environmental situation
+ Educating locals on conservation methods
and tactics
 Regulations inspected more frequently
 Ecotourism
+ Insights from local people
+ Fun outdoor activities

14. Conclusion
Positive
Negative
S Good location
S Basic equipment
S Well organizes hatchery
S Not enough staff
S Successful conservation
S Project cost issues
methods
S Helpful staff
S Visible results
S Cooperation of locals
S Various outdoor activities