The Wonsan Seafood Production and Processing Station boasts a rich experience in double offshore farming.
“By double farming we mean raising mussels both in spring and autumn in limited breeding grounds,” said Kim Song Su, manager of the station.
Two years ago while at work at a breeding ground, he found mussels different in size hanging on the frame ropes.
Large mussels were those larvae formed on the frame ropes in the autumn of the previous year. It suddenly struck him that the mussels of that size were big enough to gather in autumn for breeding later.
But until then most people thought that only young mussels gathered in spring could be used for cultivation.
Back at the station, he had a discussion with his employees over his idea.
The notion of double farming in the sea was so foreign to them that none readily supported his idea. Then Kim said: It’s true that we have never experienced this kind of farming. But I think offshore farming is the same as the farming on the land. In order to produce more mussels in the future, we have no other choice but to increase the per-hectare yield, given that we have a limited area of cultivation.
After all, they agreed to do double farming in one hectare of breeding ground on a trial basis.
Some solutions came up among the employees.
One of them was about gathering young mussels in autumn.
They added one seed rope to the frame ropes in the main breeding ground. The method did no harm to the nutritional management of the mussels in the middle of growth and to the flow of water.
The bottleneck was the larval stage of mussels in spring. If they are placed under poor care in this period, the mussels clinging to the seed ropes may grow different in size according to layers, resulting in low yield at the end of the year. On the basis of the past experience, they found a way to reap a sound harvest even at the end of the year. Finally, their painstaking efforts paid off. Last year the station produced 150 tons of mussels in the trial breeding ground.
This year the station set an ambitious goal of producing mussels by nearly five times as against the last year.
To this end it has increased the double farming area by three times, and overfulfilled its production plan in January.
“As a growing number of farmers boast high crop yields, so we are going to follow their example in the sea. No pain, no gain,” said the manager.
Jong Sun Hwa
More From Naenara (En)
A spokesman for the General Staff of the Korean People's Army made public a press statement "The Republic of Korea should be ready
January 10, 2026
A spokesman for the General Staff of the Korean People's Army made public a press statement "The Republic of Korea should be ready
Kim Jong Un , general secretary of the Workers' Party of Korea, sent a message of greeting to Thongloun Sisoulith, general
January 10, 2026
Kim Jong Un , general secretary of the Workers' Party of Korea, sent a message of greeting to Thongloun Sisoulith, general
New houses have appeared at the Sinphung and Yongjung farms in Sinpho City, South Hamgyong Province, and at the Namhoe Farm in
January 10, 2026
New houses have appeared at the Sinphung and Yongjung farms in Sinpho City, South Hamgyong Province, and at the Namhoe Farm in
Kim Jong Un , president of the State Affairs of the Democratic People’s Republic of Korea, sent a reply letter to Vladimir
January 09, 2026
Kim Jong Un , president of the State Affairs of the Democratic People’s Republic of Korea, sent a reply letter to Vladimir
Since the programme of the rural revolution in the new era was set forth in 2022, rural communities across the DPRK have made
January 09, 2026
Since the programme of the rural revolution in the new era was set forth in 2022, rural communities across the DPRK have made
The Natural Energy Institute of the State Academy of Sciences has developed a new methane gas production technology. Previously,
January 09, 2026
The Natural Energy Institute of the State Academy of Sciences has developed a new methane gas production technology. Previously,
Modern houses have been built at the Chilgol Vegetable Farm in Mangyongdae District, Pyongyang Municipality and public and
January 09, 2026
Modern houses have been built at the Chilgol Vegetable Farm in Mangyongdae District, Pyongyang Municipality and public and
The DPRK team ranked first in the country and region standings at the 2025 IWF World Championships held in Norway in October last
January 09, 2026
The DPRK team ranked first in the country and region standings at the 2025 IWF World Championships held in Norway in October last
The Central Committee of the Workers' Party of Korea sent a congratulatory message to the Twelfth Congress of the Lao People's
January 08, 2026
The Central Committee of the Workers' Party of Korea sent a congratulatory message to the Twelfth Congress of the Lao People's
The 13th Plenary Meeting of the Eighth Central Committee of the Workers’ Party of Korea held in December last year referred to
January 08, 2026
The 13th Plenary Meeting of the Eighth Central Committee of the Workers’ Party of Korea held in December last year referred to
In recent years, many public leisure facilities have been built across the DPRK. Art theatres and open-air theatres were renovated
January 08, 2026
In recent years, many public leisure facilities have been built across the DPRK. Art theatres and open-air theatres were renovated
News of house-moving ceremonies which show a rapid development of the countryside is heard from Jagang Province of the DPRK day
January 08, 2026
News of house-moving ceremonies which show a rapid development of the countryside is heard from Jagang Province of the DPRK day
Regions in the DPRK are changing their appearance every year. Last year alone more than 32 000 houses were built in several
January 07, 2026
Regions in the DPRK are changing their appearance every year. Last year alone more than 32 000 houses were built in several
The respected Comrade Kim Jong Un always stresses that the people’s demands and interests should be regarded as absolute criteria
January 07, 2026
The respected Comrade Kim Jong Un always stresses that the people’s demands and interests should be regarded as absolute criteria
The Pyongyang General Electric Cable Factory 326 is making innovations in the production of various kinds of electric cables from
January 07, 2026
The Pyongyang General Electric Cable Factory 326 is making innovations in the production of various kinds of electric cables from
Last year Korean athletes brought home many gold medals from international competitions, adding lustre to the dignity and honour
January 07, 2026
Last year Korean athletes brought home many gold medals from international competitions, adding lustre to the dignity and honour
A national photo exhibition "Ushering in an era of gigantic transformation for comprehensive development of Korean-style
January 07, 2026
A national photo exhibition "Ushering in an era of gigantic transformation for comprehensive development of Korean-style
New houses have been built at the Taljon Farm in Tanchon City and Kuup and Rimphyong farms in Yodok County, South Hamgyong
January 07, 2026
New houses have been built at the Taljon Farm in Tanchon City and Kuup and Rimphyong farms in Yodok County, South Hamgyong
Over the past five years the DPRK has pushed a dynamic nature-remaking campaign to develop agricultural production in a
January 06, 2026
Over the past five years the DPRK has pushed a dynamic nature-remaking campaign to develop agricultural production in a
Workers of the Kujang Cement Factory in the DPRK carried out the blasting of 100 000 cubic meters of earth on January 4. The
January 06, 2026
Workers of the Kujang Cement Factory in the DPRK carried out the blasting of 100 000 cubic meters of earth on January 4. The
More Articles
