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🧬 Biological Classification (Kingdom to Species)Gobiobotia macrocephala

Kingdom

Animalia

Phylum

Chordata

Class

Actinopteri

Order

Cypriniformes

Family

Gobionidae

Genus

Gobiobotia

Species

Gobiobotia macrocephala

Actinopteri🥩 Carnivore

Big-headed gudgeon

Gobiobotia macrocephala (Big-headed gudgeon · Big-headed gudgeon)

🛡️ Conservation Status (IUCN Red List)NT (Near Threatened)

DDData Deficient

LCLeast Concern

NTNear Threatened

VUVulnerable

ENEndangered

CRCritically End.

EWExtinct in Wild

EXExtinct

🇰🇷 Class II endangered wildlife (Korea)

Geological Era

Extant

Diet

Carnivore

Length · Height

6~10cm · No data

Mass · Top Speed

No data · No data

Habitat & Fossil Locality

Fast riffles 10–30 cm deep with thick layers of gravel and stones in the middle and upper reaches of the Imjingang, Hangang, and Geumgang rivers

💡 Everyday Comparisons for Size, Mass & Speed

💡 Its body length of 10 cm is slightly longer than the long side of a credit card (about 8.56 cm) (Comparison).
💡 It lives where gravel is piled thick on riffle bottoms, but building dams or modifying rivers causes such rapid riffles to disappear.

Reference standards: coach bus ~12 m, mid-size car ~4.9 m, compact car ~1 t, basketball hoop 3.05 m, credit card 8.56 cm.

#꾸구리#Gobiobotia macrocephala

📖 1. Overview

The Big-headed gudgeon is a small freshwater fish living on the bottoms of very fast-flowing riffles, with a striped body resembling a marine fish.

🦴 2. Anatomy & Morphology

Its body is nearly cylindrical, its mouth sits beneath the snout with 4 long pairs of barbels, and its yellowish-red-brown body has brown vertical bars. Its pupils narrow in bright light and widen in dim light.

🔍 3. Ecology & Behavior

At night, it feeds on aquatic insects such as caddisfly and mayfly larvae, and lays eggs along the edges of shallow riffles from late April to mid-June.

🇰🇷 4. Connection to Korea

It is a Class II endangered wildlife (Korea) species and a Korean endemic living in the middle and upper reaches of the Imjingang, Hangang, and Geumgang rivers. Its habitat is shrinking due to river construction and dam building.