Commercial crab farming has emerged as a profitable alternative to traditional rice and fish cultivation in Dumuria upazila of Khulna, transforming rural livelihoods and creating new opportunities for export earnings.
Favourable climatic conditions, easy access to saline water and strong international demand have encouraged many unemployed youths and small farmers to engage in crab fattening, making it one of the fastest-growing aquaculture sectors in the region.
Farmers said crab farming requires relatively low investment, faces fewer disease risks than conventional fish farming and produces market-ready crabs within three to four months. Both soft-shell and hard-shell crab fattening methods are widely practised, offering attractive returns.
Of the 15 crab species found in Bangladesh, 11 are saltwater species and four are freshwater species. The red crab is considered the most commercially important and is the largest among them.
Visits to different villages in Dumuria found that crab farming has become increasingly popular due to its profitability and growing market demand.
Local farmers said they once relied mainly on paddy cultivation. Before Cyclone Aila, most land in the area was used for crop production. However, changing environmental conditions and the expansion of saline water have encouraged many farmers to switch to crab farming.
More than 5,000 farmers, including many women, have become self-reliant through crab farming in the upazila. Although Dumuria has long been known for agriculture and fisheries, it is now emerging as a major hub for crab cultivation.
According to the Department of Fisheries, nearly 28,000 farmers across Khulna Division, including around 9,000 women, have improved their livelihoods through training and marketing support related to crab farming.
Dumuria Senior Fisheries Officer Sohel Md Zillur Rahman Rigan said the area's soil and water are highly suitable for crab cultivation.
"The Department of Fisheries is providing technical support, guidance on quality seed selection and proper farm management. As crab farming involves lower risks and higher profits, more entrepreneurs are entering the sector, contributing significantly to the rural economy," he said.
Khulna District Fisheries Officer Md Badruzzaman said crabs produced in the region enjoy strong demand in international markets, including China, Singapore, Malaysia, Hong Kong, Thailand, South Korea, Taiwan, Australia, Japan and the United Arab Emirates.
He said the government is working to strengthen market linkages, ensure fair prices for farmers, reduce dependence on middlemen and promote environmentally sustainable crab farming.
Ashutosh Ghosh, a farmer from Tipna village, said his family turned to crab farming because it is more profitable than fish or paddy cultivation.
Monali Saha, another farmer, said crab farming has become her family's primary source of income.
"My husband and I have been farming crabs on one acre of land for the past five years. However, middlemen still earn more than we do because we lack direct access to markets," she said.
Farmers Salman Sheikh, Swapan Mondal and Rishikesh Das said many households that once struggled with debt have achieved financial stability through crab farming, enabling them to build permanent homes and purchase land.
They called for easier access to credit and expanded hatchery facilities for artificial seed production, saying such support could help crab farming become a major export-earning industry alongside Bangladesh's shrimp sector.
