Mass death of fish keenly monitored

With at least 4000 fish found dead on the shores of Ramanathapuram district in Tamil Nadu due to algal bloom, the scientists of Central Marine Fisheries Research Institute (CMFRI) have taken the extra effort to monitor the extent of the algal bloom and also to analyse the situation.

The CMFRI has sought the help of satellite images to figure out the extent of the algal boom that is said to have caused the death of fishes, which had created panic along the coasts between Kunthukal in Pamban and Vedalai in the Gulf of Mannar.

As soon as the fishermen reported about the sudden death of fishes, the CMFRI team visited the shore and found that it was the blooming of microbial algae that has resulted in the death. Once algal bloom takes places, it blocks the sunlight from entering the water. It has been found that the fishes have died due to algal choking and ammonia poisoning.

The CMFRI said that they were continuously monitoring the situation and analysing the extent of the algal bloom. Now the algal bloom is seen to be drifting away from the shores off Ramanthapuram towards Palk Strait.  

The scientists believe that an increase in temperature, low currents and low tidal amplitude have led to algal blooming at this pint of the year.

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