The Indian authorities have redesigned the navigation lock of Farkka Barrage in order to ensure smooth and safe migration of Hilsa shoal during the three mating seasons, particularly during monsoon.
According to a report of Times of India, from June this year, Hilsa from Bangladesh will be able to swim along the Ganges river all the way up to Allahabad in India.
The navigation lock, a device that is used to raise and lower the boats and ships between stretches of water on a river, has been redesigned so that after a gap of over 40 years, the Hilsa can be able to swim down the Ganga all the way up to Allahabad this monsoon.
The lock had for long-stalled the movement of Hilsa from salty waters of downstream Bangladesh to sweeter water in the upstream, particularly during the spawning season.
This is being done as part of efforts to preserve the biodiversity of the Ganges, India's Water Resources Minister Nitin Gadkari said on Friday.
“The gates will be kept open between 1:00 am and 5:00 am every day because that is the time when Hilsa fishes move,” said Inland Waterway Authority of India Vice-Chairman Pravir Pandey
“This has been done in consultation with the Indian Council for Agricultural Research, Central Inland Fisheries Research Institute, Central Water Commission and the Farakka Barrage authorities.”
This will lead to increased availability of Hilsa in India, a spokesman of Indian Shipping Ministry said.