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🌊 Marine 🌡️ Subtropical

Ruler-pattern snake eel

Ophichthus yamakawai Hibino, McCosker & Tashiro, 2019
Max Length
35.6 cm
Max Weight
-
Lifespan
-
Trophic Level
3.8
Depth
-
Climate
Subtropical
Resilience
High
Vulnerability
25.00/100
Typical Length
-
Depth Zone
demersal

📖 Overview

Collecting depth is unknown, but it was possibly collected from deep water ca. 100 m (T. Yamakawa, pers. comm., in Ref. 131479).

Scientific Name
Ophichthus yamakawai
Authority
Hibino, McCosker & Tashiro, 2019
Habitat
Marine
Climate
Subtropical
Max Length
35.6 cm
Trophic Level
3.8
Resilience
High
Vulnerability
25.00/100
Salinity
30–40 ppt

🐟 Physical Description

Vertebrae: 172. This species with 4 large dark blotches along lateral line from mid-trunk to posterior tail is distinguished by the following set of characters: head 7.5% TL; tail 58% TL; dorsal-fin origin is behind pectoral-fin tip, 2.7 times pectoral-fin length; teeth are small and conical, uniserial on maxilla, mandible and vomer; total vertebrae 172, predorsal 16, preanal 67 .Cross section: oval.

🌀 Behaviour

Behavioural data for Ruler-pattern snake eel is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

🐣 Oviparous 📦 Batch Spawner
Spawning Season
spring-summer
Spawn Location
Pelagic
Fertilization
External

🌍 Habitat & Distribution

Marine; demersal; depth range ? - 100 m . Subtropical Northwest Pacific: Japan.

🌿 Ecology

Zone Preferences
🌊 Marine ⬇️ Benthic
Trophic Level
3.8±0.6

📐 Morphometrics

Length–Weight Relationship: W = 0.00093 × L2.99 (TL)
Max TL
35.6cm
Vertebrae
172

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
25.00/100
Low vulnerability
Trophic Level
3.8
Predator
Climate Zone
Subtropical
Described By
Hibino, McCosker & Tashiro, 2019

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