Do you know that a glass of seawater can predict red tide now?

Take a cup of seawater and measure it with the instrument of "Red Tide Real-time Monitoring System" to know the content and size of algae in seawater, so as to judge whether there will be red tide, which can play an early warning role. Professor Xiamen University invented this monitoring instrument, which is the first monitoring system in the world that can predict red tides. At present, it has obtained an invention patent authorization and two software copyright registrations.

This set of seawater "electronic eyes" appeared at the Xiamen Science and Technology Products Exhibition not long ago. Inventor Wang, a professor at Xiamen University, said that after seawater sampling, the number, shape and size of algae were displayed by computer, and the number of algae was listed in the corresponding database. According to the comparison of algae concentration when the red tide occurs, the system will rank the most dangerous algae at the front, so as to judge whether there is a danger of red tide.

Wang said that at present, the commonly used means of red tide monitoring is to use satellite remote sensing technology to monitor the coming of red tide. If the weather is clear and there is no cloud, and there is a piece of red on the sea photographed by satellite, it means that red tide may occur. This method is limited by many factors such as weather. At present, the monitoring system of the ocean forecasting station is also used to go to the site to see if there is any environment and conditions suitable for the growth of red tide, pump up the seawater, observe whether there are cells with red tide under the microscope, and then calculate whether there will be red tide by formula.

"At present, there is no red tide forecasting system in the world." Wang said this system is the first one that can be predicted. However, this system also has shortcomings: an algae corridor must be built in the body before some algae in the corridor can be detected. Wang said that at present, the gallery has collected more than 20 kinds of algae specimens.

According to reports, the "red tide real-time detection system" can only be used in the ocean at present. At present, the system has completed the batch production of "863" prototype, passed the environmental experiment and performance test of "National Ocean Metrology Station", and can be put into hundreds of coastal marine environmental monitoring stations for red tide monitoring.