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🌊 Marine 🌡️ Deep-water

Sharpnose tonguefish

Symphurus oxyrhynchus Lee, 2022
Max Length
-
Max Weight
-
Lifespan
-
Trophic Level
3.3
Depth
718–852 m
Climate
Deep-water
Resilience
High
Vulnerability
15.00/100
Typical Length
-
Depth Zone
deep-water

📖 Overview

Only two specimens were collected from the deep waters, but It is expected to have wider distributions, horizontally and vertically. Stomach contents include small crustaceans, snails and bivalves. Little else is known about the biology of this species .

Scientific Name
Symphurus oxyrhynchus
Authority
Lee, 2022
Habitat
Marine
Climate
Deep-water
Depth Range
718–852 m
Trophic Level
3.3
Resilience
High
Vulnerability
15.00/100
Salinity
30–40 ppt

🐟 Physical Description

This new species is distinguished from congeners by the following combination of characters: predominant 1–2–2–1–2 pattern of interdigitation of dorsal pterygiophores and neural spines, 14 caudal-fin rays, 93 dorsal-fin rays, 80–81 anal-fin rays, 9 abdominal and 52 total vertebrae, 5 hypurals, small eye (7.5–8.0 % HL) with relatively large pupil (78–85% ED), moderately large scales (87–89 scales in longitudinal series, 31 scales in transverse row), snout square and projecting anteriorly, ocular side uniformly yellow to dark brown with intense pigmentation on body areas overlying dorsal- and anal-fin pterygiophores, outer surface of opercle on both sides bluish black, general background coloration shared the same coloration in blind side, including more intense on body areas overlying dorsal and anal pterygiophores .Cross section: flattened.

🌀 Behaviour

Behavioural data for Sharpnose tonguefish 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 718 - 852 m . Deep-water Northwest Pacific: Japan and Taiwan.

🌿 Ecology

Zone Preferences
🌊 Marine 🌑 Deep Water ⬇️ Benthic
Trophic Level
3.3±0.4

📐 Morphometrics

Length–Weight Relationship: W = 0.00912 × L3.13 (TL)

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
15.00/100
Low vulnerability
Trophic Level
3.3
Predator
Climate Zone
Deep-water
Described By
Lee, 2022

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