Continuous Data Delivers Added Protection for Singapore Fish Farmers
Continuous water quality monitoring in the Strait of Johor supports an early warning system that helps fish farmers in Singapore protect their aquaculture operations from harmful algal blooms.
Aquaculture has become an industry of special interest in Singapore. Yet, much of the country’s farmed fish comes from coastal operations vulnerable to sudden and dramatic changes in water quality. In the Strait of Johor, the waterway that runs between Singapore and Malaysia, nutrient-rich waters can quickly produce harmful algal blooms, leading to large-scale die-offs of fish stocks.
While many of the region’s farmers have decades of experience and can spot color changes in the water that indicate a bloom, visual signs may come too late to avoid loss. Manual grab sampling also provides some insight on water quality, but sporadic data collection isn’t sufficient to catch changes in a dynamic environment.
Seeing the threat to the country’s burgeoning aquaculture industry and overall food security, interested parties launched a broad effort to monitor water quality continuously and use it to alert farmers in advance of a deadly bloom. The environmental monitoring firm Kizen worked with partners to install several long-term monitoring stations.
Aqua TROLL 500s gathering data on salinity, chlorophyll a, pH/ORP and temperature are deployed on several tethered buoys, which can easily be moved to different locations. In addition, several RDO PRO-X sensors monitor dissolved oxygen at standalone locations on coastal fish farms. Data collected 24 hours a day is wirelessly transmitted to a base-station system where it’s displayed on a web user interface.
The data is used to warn farmers of deteriorating water conditions...