Sedimentation and Water Circulation in Green Mussel Farms of Samar, Philippines
In 2009, Samar mussel industry suffered a massive decline in its production due to mass mortality. There were many speculations, varying research results and differing experts' opinion on what is the leading cause of the mass kill of green mussel. One particular reason that is now widely accepted by the community is that the staking method was the culprit as it traps sediments, restricts water circulation and retains wastes on the seabed floor. Two of the identified factor will be examined in this paper, the volume of sediments produced and the water current in the different green mussel farms in various bays and sea of Samar. Results of the study showed that the volume of sediments produced is significantly higher for mussel farms that are more productive (tray module farms) versus other farms (Wigwam and staking methods) and those without farms. Data, however, reveals that water current inside the farms is significantly different except for that using tray module. Results suggest that the higher the mussel farm productivity the likely higher sediments produced.