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🌊 Marine Data Deficient 🌡️ Temperate

Dysomma Longirostrum

Dysomma longirostrum Chen & Mok, 2001
Max Length
28.5 cm
Max Weight
-
Lifespan
-
Trophic Level
3.7
Depth
100–150 m
Climate
Temperate
Resilience
-
Vulnerability
15.00/100
Typical Length
-
Depth Zone
-

📖 Overview

Dysomma Longirostrum (Dysomma longirostrum), first described by Chen & Mok, 2001 is a medium-sized fish in the family Synaphobranchidae (order Anguilliformes). Adults typically reach 28.50 cm in maximum length. It inhabits marine coastal and open-ocean environments. Recorded depth range: 100 to 150 metres. It occurs in Temperate waters. It feeds on a mix of small fish and invertebrates as a mid-level predator. On the IUCN Red List, it is classified as Data Deficient.

Scientific Name
Dysomma longirostrum
Authority
Chen & Mok, 2001
Habitat
Marine
Climate
Temperate
IUCN Status
DD
Max Length
28.5 cm
Depth Range
100–150 m
Trophic Level
3.7
Vulnerability
15.00/100
Salinity
30–40 ppt

🐟 Physical Description

Vertebrae: 130. This species is characterized by the following: with pectoral fin; origin of dorsal fin above tip of pectoral fin, predorsal length 17.9-18.6% TL; without intermaxillary teeth; snout very long, its length 25.7-32.1% HL; jaw long and slender, upper jaw length 42.0-52.1% HL; anus posterior, far behind pectoral fin, preanal length 24.0-24.3% TL; trunk is moderately long, trunk length 9.7-10.3% TL; upper jaw with multiple rows of teeth on upper jaw; multiple rows of small teeth on lower jaw, those on inner row larger than the rest; vomer with 5 compound teeth; head pores: SO 5, IO 8 (2 between nostrils, 2 below eye, 4 behind eye), M 7, POP 2, AD 1, ST 0, F 1; lateral-line pores: predorsal 11, prepectoral 3-6, preanal 20, total ca. 77 or ca. 96, the last at 2/3 HL before caudal fin; MVF 14-24-130 (holotype only); colour of body uniformly brown when preserved .: eel-like; Cross section: oval.

🌀 Behaviour

Behavioural data for Dysomma Longirostrum 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; benthopelagic; depth range 100 - 150 m . Temperate

🌿 Ecology

Zone Preferences
🌊 Marine
Trophic Level
3.7±0.3

📐 Morphometrics

Length–Weight Relationship: W = 0.00102 × L3.06 (TL)
Max TL
28.5cm
Vertebrae
130

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Data Deficient
Assessment Date
2019

📊 Population Risk & Fisheries

Fishing Vulnerability
15.00/100
Low vulnerability
Trophic Level
3.7
Predator
Climate Zone
Temperate
Described By
Chen & Mok, 2001

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