In South Asia, one of the largest natural fertility breeding centers in the Halda River has increased significantly in the amount of eggs without mother fish.

From midnight on Thursday, mother fish started without eggs. Earlier on Wednesday, the carp national fish from Halda sample eggs.

Egg collector Halda Jail fishermen and locals say the last five to five years, the mother has released the highest amount of eggs.

Over the past few years, the amount of egg lime continued to decrease. Before laying eggs before filling, the fishermen took positions on different points of the river after preparing the eggs after feeding the eggs.

They started collecting eggs in several places including Raozan and Hathazari areas of Halda river, Ghadua of Azimi Ghona, Ankuria Ghona, Kagatia, Nagar Ghana, Ram Das Munshir Ghat and Mashuah Ghana from Thursday night. The work is done on Friday afternoon.

Halda researcher and professor of zoology department of Chittagong University. Manjurul Kibria said, the last time the eggs were collected 1 thousand 680 kg. According to initial information, the eggs have collected 22 thousand 680 kg. 405 boats were engaged in collecting eggs in the river.

"As of this time, Renu will get around 378 kg. All the boats have not yet returned. As a whole, the amount of lime can be even more. Which is very optimistic. "
Egg collector Kamal Sodagar told bdnews24.com, "My six boats have collected eggs from different places of the river. Eggs are the highest in five years. "

Assistant Fisheries Officer of Hatahajari upazila Kazi Abul Kalam told bdnews24.com that after 10 days of the eggs, they will be able to report the full accounts.

Among the contamination and other adverse effects, the felicity of the halide mother fish eggs increase at a significant rate, the fishermen are very happy.

Coordinator of Halda River Research Laboratory of Chittagong University Manjurul Kibria said, due to some positive steps, the mother of the mother of the mother of the mother is better than ever before. The result was found now.

He said more eggs have been found because of dredger movement and diversification of fish and stop the withdrawal of sand, regular monitoring of speedboat under PKSF and IDF supervision, increase in surveillance of local administration, prevention of poaching and the proper flow of water through Bhujpur Dam control.
Manjurul Kibria, who thinks Halda can be freed from the power of pollution, will get eggs as before.
Usually in the beginning of the monsoon season, when full rainfall occurs with thunderstorms in the Purnima-Amavasya Tithi, and if the temperature of the river water is favorable, then the mother can lay eggs. Halda basically gives the eggs of rui, katl, mrigel, calbus fish.

Fishermen prepared in different points of the river Halda in Chittagong to collect the samples after their mother fishes.

But due to the poaching of the hunter-gatherers and the environment, the number of fish was decreasing in the river Raujan and Hatahajari of Chittagong. As a result, production of eggs was steadily decreasing.
On May 12, 2015, May 20, 2015, on April 19, 016 and on 22 April 2017, Halda left the egg.

As a government, the egg collected from the river in 2012 was approximately one thousand six kg. In 2013, it decreased to 624 kg and in 2014 it has only dropped to five hundred kg.