Sites under this category are identified to have existing green mussel culture. These areas are the suppliers of green mussel in the country. Physico-chemical and biological parameters are found to be ideal and at optimum range. Mussel spats are also abundant in these areas.
These areas have been identified to have ideal and optimum physico-chemical and biological parameters. There is no known history of mussel culture in these areas and could possibly serve as expansion sites.
These sites are identified as enclosed areas but they do not meet the optimum requirements for green mussel growth.
Sites under these category are identified to be suitable but are not recommended due to conditions such as seasonal changes, proper zoning, and site alteration.