Diverse Local Techniques – Don Kamyan Snakehead Fish, A Prized GI Product and Culinary Treasure of Suphan Buri

Don Kamyan snakehead fish has enjoyed a stellar reputation for over 80 years. Historical records from 1923-1935 documented that snakehead from the Don Kamyan Canal possessed superior flavor to fish from other sources. In 1980, the Department of Fisheries officially recognized it as the most renowned snakehead source in Central Thailand.

When crayfish farmers encountered disease outbreaks in 2002-2003, the Fisheries Office actively promoted switching to Don Kamyan snakehead farming, given the species' remarkable hardiness and disease resistance. A fisheries director so admired the fish's exquisite taste that he introduced the breed to Bang Bo District in Samut Prakan Province, establishing the foundation for commercial snakehead farming operations.

The name "Don Kamyan snakehead" derives from the Don Kamyan Canal, which winds through eight districts in Suphan Buri Province: Muang, Sri Prachan, Sam Chuk, Dem Bang Nang Buach, Don Chedi, Bang Pla Ma, Song Phi Nong, and U Thong. The fish flourish abundantly in this region due to its low-lying topography, which frequently experiences prolonged flooding. This causes kamyan plants (Sida acuta) to decompose in the water. When snakehead feed on the fragrant kamyan roots, they develop their distinctive aromatic, delicious flavor—a unique characteristic. This earned Don Kamyan snakehead registration as the province's second Geographical Indication (GI) product, following Suphan silk.

Historically, kamyan plants grew abundantly near Don Kamyan Subdistrict in Muang District, Suphan Buri Province, hence the name "Don Kamyan." Naturally, kamyan is a small climbing plant with single leaves, white fragrant flowers, and aromatic roots with distinctive properties. The roots are traditionally used to create incense sticks, scented candles, scented water, and natural insect repellents.

Today, wild kamyan plants are scarce. The Suphan Buri Provincial Agricultural Office has tasked the Bung Chawa Commemorative Local Vegetable Park in Dem Bang Nang Buach District with propagating and distributing kamyan plants to local snakehead farmers and residents, who plant them along waterways to sustain the fish's signature flavor.

Don Kamyan snakehead is an indigenous breed of Suphan Buri with a leaf-like, flat, elongated body marked with black stripes. The flesh is white with a pinkish hue and minimal belly fat, delivering excellent taste. Products are marketed in diverse forms: fresh, trimmed, sun-dried, and crispy fried. Harvested fish typically weigh 5-12 per kilogram.

"We use 'Don Kamyan' as our gimmick," explained Arisaa Yeuk Yen, leader of the Ban Du Tham Local Fishing Community. "It's the origin of Don Kamyan snakehead. We cultivate and conserve kamyan and Sida acuta plants—what we call 'the fragrant root spirit'—which possess remarkable medicinal and nutritional value. They support circulatory health, particularly for men, boosting male vitality and virility, the Thai way."

Today, the Ban Du Tham Local Fishing Community in Suphan Buri serves as a learning hub for complete-cycle Don Kamyan snakehead processing, holding certification from the Department of Fisheries. The community emphasizes semi-natural farming: regular pond cleaning, sludge removal, pH balancing, and planting lotus and morning glory as fish shelter. Fish consume aquatic plants naturally in the water column.

The operation prioritizes low-cost farming using primarily natural feed—what's called "natural agricultural principles" or "fish sandwich" methods and fermented rice straw feeding (fish forage). Following Department of Fisheries guidance, this approach significantly reduces farming costs by minimizing commercial feed consumption.