The Sea Squirt is a distinctive marine delicacy known for its unique ocean-like aroma and chewy texture. Its scientific name is Halocynthia roretzi, and it is commonly called the Sea Pineapple or Sea Squirt in English. Widely cultivated along the coasts of Korea, it is enjoyed fresh in sashimi, rice dishes, and various seafood recipes.

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📌 Basic Information

• Scientific Name: Halocynthia roretzi
• Common Names: Sea Pineapple / Sea Squirt
• Phylum: Urochordata (Tunicates)
• Habitat: Coastal rocky areas
• Distribution: Coastal waters of Korea, Japan, and China

Although it resembles shellfish or sea cucumbers, the sea squirt is actually more closely related to vertebrates than most people realize.

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🎨 Physical Characteristics

✔️ Rough, bumpy outer surface

✔️ Orange to reddish body color

✔️ Two siphon openings

✔️ Tough outer covering

Its appearance resembles a pineapple, which is why it earned the nickname “Sea Pineapple.”

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🌊 Lifestyle

✔️ Attaches permanently to rocks and hard surfaces

✔️ Rarely moves during adulthood

✔️ Draws in seawater to feed

✔️ Filter-feeding organism

Sea squirts survive by filtering plankton and organic particles from seawater.

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🍽 Culinary Value

✔️ Distinctive ocean-like flavor

✔️ Firm and chewy texture

✔️ Versatile ingredient in various dishes

✔️ Popular when eaten raw

In Korea, sea squirts are commonly enjoyed in dishes such as sea squirt bibimbap, seasoned sea squirt salad, and fresh sashimi.

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💪 Nutritional Benefits

✔️ Rich in protein

✔️ Contains essential amino acids

✔️ Good source of minerals

✔️ Low in fat

Sea squirts also contain compounds such as glycogen and taurine, contributing to their reputation as a nutritious seafood.

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🌿 Ecological Role

✔️ Helps improve water quality

✔️ Filters plankton from seawater

✔️ Supports marine ecosystem balance

As filter feeders, sea squirts play an important role in maintaining cleaner coastal waters.

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⚠️ Aquaculture and Management

✔️ One of Korea’s important aquaculture species

✔️ Requires clean water conditions

✔️ Sustainable farming practices are essential

Major production areas include the coastal regions of Tongyeong and Geoje in South Korea.

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The Sea Squirt is:

🌊 A seafood that captures the essence of the ocean

🫧 A filter-feeding marine animal that helps clean seawater

🍽 A unique delicacy with distinctive flavor and nutritional value

Its unusual taste may seem unfamiliar at first, but for many seafood lovers, the sea squirt becomes an unforgettable delicacy that perfectly represents the flavors of the sea.