Hundreds of useless fish had been discovered floating on Sunday in Dighalipukhuri water tank in Guwahati. An examination of the collected samples of the useless fish and the waterbody revealed that depletion of dissolved oxygen within the tank coupled with excessive natural load led to the incident.
Following the detection of round 600 kilograms of 400 useless fish of various species within the tank, Assam Fisheries Minister Parimal Suklabaidya had directed the officers of the division to go to the positioning and confirm the trigger behind the mass deaths.
“Fish mortality was due to sudden dip in oxygen level and high organic load in the tank. Departmental officers after examination found deaths of fish not due to poisoning but environmental degradation,” mentioned Mr Suklabaidya.
The division, as a short-term measure, elevated the oxygen degree in water by showering water by pump and creating wave motion by mechanised boats.
The Dighalipukhuri or lengthy pond in Assamese – greater than 500 metres lengthy – is situated within the Ambari space of the state’s largest metropolis.