Shrimp Aquaculture Flashcards
1
Q
What are the advantages of shrimp aquaculture?
A
- High demand
- Existing knowledge and experience
2
Q
What are the disadvantages of shrimp aquaculture?
A
- Destruction of mangrove environment
- Disease easily spread - very common
- Antibiotics and pesticides are often included in feed and tanks.
- Tanks require regular cleaning and disinfecting
3
Q
What can disease spreading cause?
A
High mortality rate in larvae
4
Q
How were post larvae shrimp traditionally collected?
A
post larvae shrimp were collected wild from estuary- not sustainable
5
Q
Explain the brooding stock stage
A
- Brooding stock of shrimp are typically used now
- Shrimp bred in indoor hatchery tanks
- Larvae fed algae and later zooplankton and brine shrimp
6
Q
Explain the post larvae stage
A
- Post larvae shrimp move to nursery tanks
- Long rectangular raceways ponds
- Continuous flow of water
- Intensively fed high protein diet for 3 weeks
- Water slowly changed to adapt to outdoor pond conditions
7
Q
Explain the juvenile stage
A
- Juveniles trapped in salt-water ponds and areas near mangrove forests.
- Natural currents supply food and oxygen, they also remove waste.
- Juvenile growth for 3-6 months until harvested.
