Spring Harvest of Tianjin Salt Field Sea Cucumbers Begins

TIANJIN, China — Workers in north China’s Tianjin Municipality have begun the spring harvest of sea cucumbers from the region’s salt flats, marking the start of a seasonal fishing effort that combines traditional aquaculture with salt production.

The harvest is taking place in Hangu Salt Field, where a 5,800-mu (approximately 387-hectare) ecological breeding base has been established for sea cucumbers, according to local reports. The spring catch is expected to yield a substantial haul, though specific production targets have not been disclosed.

Dual-Use Salt Flats Support Aquaculture

The Hangu Salt Field, operated by Tianjin Changlu Haijing Group Co., Ltd., is one of China’s largest salt production sites, spanning 250,000 mu (about 16,700 hectares). While the primary focus remains salt harvesting—currently in full swing—the salt flats also serve as a unique environment for sea cucumber farming. The brackish water and controlled salinity levels create favorable conditions for the marine creatures, which are prized in Chinese cuisine and traditional medicine.

Workers have been deploying specialized equipment to collect the sea cucumbers, which are then transported ashore for processing. The spring harvest typically runs from late April through early June, depending on weather conditions and water temperatures.

Sustainable Practices Drive Production

The integration of sea cucumber farming with salt production reflects a broader push toward sustainable aquaculture in China. By utilizing existing salt flats, the operation minimizes additional land use while maximizing the economic value of the coastal environment. Sea cucumbers are known for their ability to improve water quality by consuming organic waste, which aligns with the ecological goals of the project.

Tianjin Changlu Haijing Group has not released details on the expected yield for this season, but industry observers note that demand for sea cucumbers remains strong in both domestic and international markets. The company’s salt flats have long been a cornerstone of Tianjin’s industrial output, and the addition of aquaculture has diversified its operations.

Broader Context: Salt Harvest in Full Swing

The sea cucumber harvest coincides with the peak of Tianjin’s spring salt production season. Workers at the Changlu Haijing Group have been actively collecting salt since mid-to-late March, with operations expected to continue through June. The 250,000-mu salt flats are a critical asset for the region, supporting both industrial and agricultural activities.

Aerial drone footage from April 27 showed workers operating machinery to transfer harvested salt, while others packed the product for distribution. The spring harvest is a key economic driver for local communities, providing employment and supporting related industries.

What Comes Next

As the sea cucumber harvest progresses, local authorities and the Changlu Haijing Group are expected to monitor yields and adjust operations based on market demand. The success of the dual-use model—combining salt production with aquaculture—could serve as a template for similar projects in other coastal regions of China.

For now, the focus remains on completing the spring harvest before the onset of summer, when weather conditions may impact both salt crystallization and sea cucumber growth. The integration of these two industries underscores Tianjin’s role as a hub for innovative and sustainable resource management.