Abalone
Overview
Abalone (전복) is a collective term for marine mollusks belonging to the family Haliotidae (전복과) of the class Gastropoda in the phylum Mollusca, and it is both a prized food ingredient and a high-value aquaculture product. It inhabits the rocky reef zones of temperate and tropical waters around the world, including the coasts of the Korean Peninsula, and as its nickname "medicine of the sea" suggests, its high nutritional value meant it was used as a tribute offering since ancient times. In Korean, "전복 (顚覆)" also means "overthrow," as in the overthrow of a government, forming a homonym that must be distinguished according to context.
Main Content
Biological Characteristics
Abalone has a flat, conical shell, and along the shell's surface a row of water pores (respiratory pores) used for respiration and excretion is arranged in a line. Depending on the species, there are roughly three to nine holes, and the arrangement of these holes is an important trait for identifying species. The muscular foot acts as a powerful suction cup, allowing it to cling firmly to rocks, and it attaches even more strongly when it senses a threat.
The sexes are usually separate (dioecious), and reproduction occurs through the release of eggs and sperm. The spawning season varies with water temperature; along Korean coasts, spawning occurs mainly in spring and autumn. It is herbivorous, mainly grazing on brown algae such as wakame (miyeok), kelp (dasima), and arame (daehwang). Its growth rate is slow, and it usually takes 2–3 years to reach marketable size (a shell length of 8–10 cm or more). The disk abalone (northern abalone, Haliotis discus hannai) grows to a shell length of 15–20 cm and is the most important aquaculture species in Korea and Japan.
Habitat Environment and Distribution
Abalone inhabits rocky reef zones at depths of 5–30 m, especially places where tidal currents flow freely and seaweed is abundant. Its optimal water temperature is about 5–25°C, and it is vulnerable to high water temperatures. In Korea, Wando, Jindo, Jeju, Ulleungdo, and the eastern coast are the main production areas, while worldwide it is actively harvested and farmed along the coasts of Japan, China, Australia, New Zealand, South Africa, California in the United States, and Mexico. Representative species include the disk abalone (참전복), the black abalone (까막전복), the giant abalone (말전복), Siebold's abalone (시볼트전복), and the obunjagi (오분자기).
Nutritional Components and Effects
Abalone is a high-protein, low-fat food rich in amino acids such as taurine, arginine, and betaine. It is also high in vitamin A, B12, and minerals such as calcium, zinc, iron, and selenium. With a high proportion of unsaturated fatty acids and low cholesterol, it is regarded as a health food. "Seokgyeolmyeong (石決明)," the dried and processed shell of the abalone, is a traditional medicinal material that has been used in Korean medicine for purposes such as improving liver function, eye health, and sedation. However, many of these claimed effects are based on traditional experience and have not been sufficiently verified by modern clinical research.
Aquaculture and Industry
Korea is the world's second- or third-largest abalone producer. Since the 2000s, land-based tank culture and offshore cage aquaculture centered on Wando have grown rapidly, and a staged aquaculture system leading from seed production → intermediate rearing → grow-out has taken hold. Domestic production is around 20,000 tons per year, and a significant portion is exported to Japan, China, the United States, and Southeast Asia. Among these, live abalone exports to Japan account for a large share.
Cuisine and Culture
Abalone is used in a variety of dishes, including abalone porridge (jeonbokjuk), grilled abalone, abalone butter grill, abalone sashimi (jeonbokhoe), abalone galbi-jjim, and abalone samgyetang. Jeju Island's abalone mulhoe (cold soup) and Wando's local dishes are particularly famous, and the "bao yu (鮑魚)" dishes of Chinese Guangdong cuisine and Japan's "awabi (あわび)" dishes are also known worldwide. In the past it was regarded as a royal tribute item and the highest-grade food served at banquets, and it is still favored as a holiday gift and as an ingredient for entertaining guests.
Recent Trends
In 2024–2025, the biggest topic in the abalone industry is responding to climate change. As coastal water temperatures rise and high-temperature events recur, large-scale mortality at farms and declining growth rates are becoming increasingly serious problems. Accordingly, research on breeding improvement for disease resistance and high-temperature tolerance has become active, and the introduction of smart aquaculture systems using AI-based water quality management and IoT sensors is expanding.
On the market side, falling prices due to increased production combined with sluggish consumption continue to worsen the profitability of aquaculture households. To overcome this, diversification of export markets, development of processed foods leveraging the K-food boom (abalone viscera sauce, canned goods, HMR products), and branding strategies are being pursued. Discussions on sustainability certification and carbon-neutral aquaculture are also gaining momentum.
Related Topics
- [[Aquaculture]]
- [[Wando County]]
- [[Seafood]]
- [[Climate Change]]
- [[Fisheries Industry]]