Sediment quality and production data of black tiger shrimp (Penaeus monodon) culture under Code of Conduct for Responsible Shrimp Aquaculture (CoC) system and ordinary system of intensive shrimp farms

Abstract

The study of sediment qualities and production data of black tiger shrimp (Penaeus monodon) culture was carried out in 5 ponds practised following CoC guideline (CoC: “Code of Conduct for Responsible Shrimp Aquaculture”) and in 10 ponds practised following common guideline of ordinary intensive farm (OIF). All the ponds were located in Songkhla and Nakhon Si Thammarat provinces and the study period was during March 2003-January 2004. It was found that sediment qualities (organic matter as %ignition loss, TN andTOC and pH) of OIF system were significantly higher (p<0.05) than those of the CoC system only during the period 30-60 days of culture which was the most critical period of shrimp culture. This evidence suggests a significant effect on deterioration of the pond bottom causing an unsuitable ecological condition for shrimp living on the pond bottom. Our result on production data showed that the production and variable cost of production were about 794 kg/rai, and 114.6 baht/kg in the CoC system, while those of the OIF were 377 kg/ rai and 185.6 baht/kg, respectively.

Keywords

• sediment quality
• production data
• code of conduct
• shrimp culture
• Penaeus monodon