Bangus production varies from zero to an excess of 2,500 kilograms per hectare. Many factors must be considered when evaluating management. Some places are so poorly designed that practical operation is impossible. It is as important to recognize that there are places where we cannot produce fish economically, as it is to recommend good cultural practices.
When we visit a pond site our first job is to examine the management history. The most important aspect of extension is collection of data pertaining to the past and current management of the production facilities. We cannot recommend better management unless we understand how the ponds have been managed in the past. A form for this (Exhibit 1) identifies the site and collects the information in an orderly fashion.