• Wednesday, Feb 08, 2023
  • Last Update : 09:24 am

Halda spawning season is on

  • Published at 04:12 pm May 5th, 2019
web-halda river
File photo shows fishermen waiting for their catch in Halda River Dhaka Tribune

The Halda river flows through Hathazari and Raozan upazilas in Chittagong

The Halda river spawning season has begun!  Spawning  indigenous sweet water species of mother fishes started releasing their eggs in the Halda River on Sunday morning.

Hathazari Upazila Fisheries Officer, Azharul Alam, said mother fishes started spawning at 7:30am in Gorduara, Machhuaghona, Ajimer Ghat, and Napiter Ghat points on the Halda river.

Every year, during the Bangla months of Baishakh and Jaishtha (April and May), various species of mother fishes like Catla (Catla), Ruhi (Labeo rohita), Mrigal (Cirrhinus mrigala) and Kalbaoush (Labeo calbasu) start migrating from the Karnaphuli, Matamuhuri, and Sangu rivers, to their spawning grounds on the Halda. 

The Halda river is the country’s lone natural fish breeding ground in the country.

Renowned fish researcher, Prof Dr Manzoorul Kibria, told the Dhaka Tribune that water temperature, strong currents, and thunderstorms are different natural factors that trigger the mother fishes to lay eggs in the river. The mother or brood fish usually releases sample eggs to test if the aquatic environment to release fertilized eggs is congenial or not. When they find the environment congenial, they start laying fertilized eggs at suitable places in the river, added Prof Kibria.

A veteran spawn collector on the Halda River, Kamal Sowdagor, said they are eagerly waiting for the brood fish to release eggs on a large scale, now that the fishes have started releasing sample eggs.

The Halda river flows through Hathazari and Raozan upazilas in Chittagong and is considered to be the only natural breeding ground in the world, where these species of fish release eggs at a certain time in the monsoon season.  Spawn collectors then collect these eggs and sell them to fish farmers across the country.

Once they have the eggs, fishermen in many parts of the country raise the eggs in mud pots and cisterns at different hatcheries set up by the government fisheries department. The eggs usually hatch into fries after 96 hours, which are then sold to fish fry istributors or hatchery owners.

Facebook 50
blogger sharing button blogger
buffer sharing button buffer
diaspora sharing button diaspora
digg sharing button digg
douban sharing button douban
email sharing button email
evernote sharing button evernote
flipboard sharing button flipboard
pocket sharing button getpocket
github sharing button github
gmail sharing button gmail
googlebookmarks sharing button googlebookmarks
hackernews sharing button hackernews
instapaper sharing button instapaper
line sharing button line
linkedin sharing button linkedin
livejournal sharing button livejournal
mailru sharing button mailru
medium sharing button medium
meneame sharing button meneame
messenger sharing button messenger
odnoklassniki sharing button odnoklassniki
pinterest sharing button pinterest
print sharing button print
qzone sharing button qzone
reddit sharing button reddit
refind sharing button refind
renren sharing button renren
skype sharing button skype
snapchat sharing button snapchat
surfingbird sharing button surfingbird
telegram sharing button telegram
tumblr sharing button tumblr
twitter sharing button twitter
vk sharing button vk
wechat sharing button wechat
weibo sharing button weibo
whatsapp sharing button whatsapp
wordpress sharing button wordpress
xing sharing button xing
yahoomail sharing button yahoomail