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🧬 Biological Classification (Kingdom to Species)Ruditapes philippinarum

Kingdom

Animalia

Phylum

Mollusca

Class

Bivalvia

Order

Venerida

Family

Veneridae

Genus

Ruditapes

Species

Ruditapes philippinarum

Bivalvia🌊 Marine predator / filter feeder

Manila clam

Ruditapes philippinarum (Manila clam · アサリ)

🛡️ Conservation Status (IUCN Red List)NE (Not Evaluated)

Not Evaluated (NE) on the IUCN Red List yet.

Geological Era

Extant

Diet

Marine predator / filter feeder

Length · Height

8cm · No data

Mass · Top Speed

No data · No data

Habitat & Fossil Locality

Sand and mud bottoms of intertidal tidal flats and shallow seas, burrowing about 10 cm below the surface

💡 Everyday Comparisons for Size, Mass & Speed

💡 Its common length of 5 cm is similar to the length of two Korean 500-won coins (diameter about 2.65 cm) placed side by side (Comparison).
💡 It is the most widely eaten clam in Korea, abundant in the wild and also extensively farmed (National List of Species of Korea).

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.

#바지락#Ruditapes philippinarum

📖 1. Overview

The Manila clam is a bivalve that burrows into sandy mud on tidal flats and is the most widely eaten clam species in Korea.

🦴 2. Anatomy & Morphology

Its shell is elongate-oval, hard, and pale yellowish-brown with diverse patterns. Because its siphons are short, it burrows only about 10 cm deep.

🔍 3. Ecology & Behavior

It is a filter feeder that strains water to obtain food. Because it moves slowly and does not stray far from its habitat, it is well suited to aquaculture; its spawning season is July–August, and its maximum recorded lifespan is 14 years.

🇰🇷 4. Connection to Korea

It is listed on the National List of Species of Korea under the name Bajirak (Korean name) and lives along coasts nationwide, though it is especially abundant on the west and south coasts. It is the most widely consumed shellfish in Korea.