Cottus koreanus

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Cottus_koreanus

Cottus koreanus is a species of freshwater fish in the family Cottidae. It is commonly known as the Korean sculpin. This species is endemic to South Korea, where it inhabits clear, cold streams and rivers.

Description

Cottus koreanus is a small-sized fish, typically reaching a length of about 10 cm. It has a robust body with a broad, flattened head and a large mouth. The coloration of Cottus koreanus is generally mottled brown and green, which provides excellent camouflage against the rocky substrates of its habitat.

Habitat

Cottus koreanus is found in the freshwater ecosystems of South Korea. It prefers clear, cold, and well-oxygenated streams and rivers with rocky or gravelly bottoms. These environments provide the necessary conditions for feeding and breeding.

Diet

The diet of Cottus koreanus primarily consists of small invertebrates, including insect larvae, crustaceans, and other small aquatic organisms. It is a benthic feeder, meaning it feeds on organisms found on or near the bottom of its habitat.

Reproduction

Cottus koreanus exhibits typical sculpin reproductive behavior. Spawning occurs in the spring when water temperatures rise. The female lays eggs in a nest constructed under rocks or in crevices, which the male then guards until they hatch. The larvae are planktonic for a short period before settling to the bottom and adopting a benthic lifestyle.

Conservation Status

The conservation status of Cottus koreanus has not been extensively studied. However, like many freshwater species, it may be vulnerable to habitat degradation, pollution, and changes in water quality. Conservation efforts are necessary to ensure the survival of this species in its natural habitat.

See Also

• Cottidae
• Freshwater fish
• Endemic species
• South Korea