1. Marine Aquaculture 2014 By Casey Phillips
Shrimp Aquaculture
Marine Aquaculture 2014
By Casey Phillips

2. Taxonomy of the Major Players
Family Penaeidae
Whiteleg Shrimp
Penaeus vannamei
Giant Tiger Prawn
Penaeus monodon

3. Economy of the Shrimp
In 2005, global shrimp production was 2.5 million tonnes which equated to 42% of the world total shrimp production (cultured and caught)
The top markets for the shrimp are the US, Japan, and the EU
The per unit price fluctuates wildly due to issues with the aquaculture affecting supply

4. Life Cycle
Shrimp eggs hatch 24 hrs after deposition into nauplii larvae that feed on internal yolk
They then metamorphose to zoeze that feed on algae
Next is the myses stage in which they feed on algae and zooplankton
The last stage is a postlarvae with adult characteristics
The whole process takes about 12 days

5. Reproduction in Captivity
This can be an issue as female shrimp tend to not become reproductive in captivity
One method to induce this is “eyestalk ablation” or the removal of the eyestalk
Some hatcheries harvest gravid females from the wild and induce them to spawn

6. Production Methods Hatcheries Nurseries Grow nauplii larvae
Range from low to high densities
And appropriately low to high survival rates
Eat algae and later some zooplankton
Nurseries
Used to raise postlarvae for 3 weeks
Then transferred to grow-out ponds
Also acclimate salinity to match grow-out ponds

7. Production Methods Grow-out Ponds
Used to grow shrimp to marketable size (3-6 months)
When full grown, harvest using either net or draining pond
2-3 harvest can be had a year (3 in warmer climates)

8. Feeding
Zoeae larvae feed on algae so most ponds are fertilized to assist in the growth of phytoplankton
Myses larvae will also feed on zooplankton so some systems add Artemia as a food source
The postlarvae can feed on these food sources but at times will be fed an artificial feed to assist in their nutritional needs

9. Water Chemistry PH range 7-9 Dissolved Oxygen 5-15 ppm
Temperature range C
5-35 ppt salinity
water hardness
For calcification of shells

10. Advantages and Disadvantages
Relatively short generation time (around 6 months)
FCR from 1.2:1 – 2.5:1
Minimal extra feed to purchase
Very popular food item
Need different care for different larvae types
High densities of monoculture increase risk of disease
Has a bad name from China and Taiwans irresponsibility to the environment (Mangrove destruction)

11. Thank You for Listening!
THE END
Thank You for Listening!