The Malabar region, extending from Malappuram to
Kasargode districts of Northern Kerala, is a well-known
mussel fi shery zone of India. Over 7,000 t (80%) of the total
green mussel (Perna viridis) catch is exploited annually
from this zone. The Central Marine Fisheries Research
Institute (CMFRI) developed techniques for mussel culture
in 1971 and subsequently fi eld demonstrations in different
areas with direct involvement of local rural folk were carried
out1. Demonstrations to popularise this technology have
led to adoption of this simple farming method particularly
in the Malabar region2. The Malabar coast has extensive
backwaters and estuaries, which are suitable for mussel
farming during the post monsoon months (November to
May) when higher saline conditions prevail. Farming activity
during this period provides an opportunity for supplementary
livelihood and additional income to the coastal rural
population
