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🌊 Marine Least Concern 🌡️ Temperate

Ophichthus Megalops

Ophichthus megalops Asano, 1987
Max Length
33.2 cm
Max Weight
-
Lifespan
-
Trophic Level
3.8
Depth
-
Climate
Temperate
Resilience
High
Vulnerability
24.00/100
Typical Length
-
Depth Zone
demersal

📖 Overview

Ophichthus Megalops (Ophichthus megalops) is a ray-finned fish of the family Ophichthidae. It inhabits marine (saltwater) waters in benthic environments. This species can reach a maximum total length of 33.2 cm. With a trophic level of 3.8, it is a mid-level predator. It is assessed as Least Concern on the IUCN Red List.

Scientific Name
Ophichthus megalops
Authority
Asano, 1987
Habitat
Marine
Climate
Temperate
IUCN Status
LC
Max Length
33.2 cm
Trophic Level
3.8
Resilience
High
Vulnerability
24.00/100
Salinity
30–40 ppt

🐟 Physical Description

Vertebrae: 160. This moderately elongate species of Ophichthus, subgenus Coecilophis is distinguished by the following characters: tail 55%, head 11.0% of total length and body depth at gill openings about 4% of TL; origin of dorsal-fin 3.5 pectoral-fin lengths behind head which is more than 1 head length behind gill opening; elongate pectoral fins, non-lanceolate; posterior margin or orbit in advance of rictus; posterior nostril a hole above upper lip is covered by a flap; conspicuous head pores, SO 1+4, IO 4+2, POM 3+6; numerous small, conical teeth, biserial on jaws, uniserial posteriorly on vomer, biserial anteriorly; pale in color, slightly darker dorsally, snout tip and lower jaw darker, fins and anterior nostrils pale, posterior region of anal-fin base black; vertebral formula 29/60/160 .: eel-like.

🌀 Behaviour

Behavioural data for Ophichthus Megalops 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 ? - 360 m . Temperate Northwest Pacific: Kumano-nada, off Owase, Mie Prefecture, Japan.

🌿 Ecology

Zone Preferences
🌊 Marine ⬇️ Benthic
Trophic Level
3.8±0.6

📐 Morphometrics

Length–Weight Relationship: W = 0.00093 × L2.99 (TL)
Max TL
33.2cm
Vertebrae
160

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2019

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
24.00/100
Low vulnerability
Trophic Level
3.8
Predator
Climate Zone
Temperate
Described By
Asano, 1987

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