study about anti-biofouling for buoy and sensor. When the
buoy system is utilized for
a long-term observation, the instruments are susceptible
to biofouling in the form of microbial and algal films. Requirements
of anti-biofouling effect for the CO2 sensor
are follows, 1. Do not influence the measurement of CO2,
2. Power saving, 3. Continues for a long term, 4. Less toxicity.
The less toxicity is important point for the CO2 sensor.
In order to reduce the effects of biofouling on the sensors,
we are conducting the antifouling tests with copper, and
We tried antifouling tests with some paints in our port side
for 2 months (Mutsu, Aomori, Japan). We avoided using metal
(Cu, Zn) type paint in spite of good result
because our buoy was made by Al. The silicon type paint was adopted as an anti-biofouling
paint for drifting buoy.
|Plate 1 The result of antifouling
test in Mutsu, Aomori.