Table 1.
Characteristics of the surveyed farm groups in the present study.
| Farm group abbreviation | Main species | Main production system | Location | Number of farms surveyed |
|---|---|---|---|---|
| SP | Shrimp (Penaeus monodon) | Improved extensive (brackish water ghera) | Khulna/Satkhira | 127 |
| SPP | Shrimp (P. monodon) and prawn (Macrobrachium rosenbergii) | Improved extensive concurrent with rice (brackish /fresh water ghera) | Khulna/Bagerhat | 139 |
| PP | Prawn (M. rosenbergii) | Improved extensive concurrent with rice (freshwater gher) | Khulna/Bagerhat | 114 |
SP, Shrimp polyculture; SPP, Shrimp and prawn polyculture; PP, Prawn polyculture.
a
The term gher refers to a paddy field which has been modified for shrimp or prawn production. Typically, paddy is cultivated in the middle of the field, which is surrounded by canals with high wide dikes into which the shrimp and prawn are stocked.