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💧 Freshwater Near Threatened 🌡️ Tropical

Sharp-toothed grunter

Syncomistes carcharus Shelley, Delaval & Le Feuvre, 2017
Max Length
17.6 cm
Max Weight
-
Lifespan
-
Trophic Level
-
Depth
-
Climate
Tropical
Resilience
High
Vulnerability
25.00/100
Typical Length
-
Depth Zone
-

📖 Overview

Inhabits streams, preferring deep back waters and slow-flowing portions. Forms shoals in the middle of the water column with Hephaestus jenkinsi Whitley, 1945. Occurs in clear waters over rocky substrates, usually where algae are in abundance. Found in highest abundance during snorkelling in Pitta Creek, 1km upstream from the confluence with the Prince Regent River .

Scientific Name
Syncomistes carcharus
Authority
Shelley, Delaval & Le Feuvre, 2017
Habitat
Freshwater
Climate
Tropical
Body Shape
Fusiform / normal
IUCN Status
NT
Max Length
17.6 cm
Resilience
High
Vulnerability
25.00/100
Salinity
0–0.5 ppt

🐟 Physical Description

Dorsal spines (total): 12; Dorsal soft rays (total): 12 - 13; Anal spines: 3; Anal soft rays: 8 - 9; Vertebrae: 25. Syncomistes carcharus is distinguished from other congeners within the Syncomistes complex by a combination of the following characters: jaw rounded with a tapered point when viewed from below in adults (jaw shape of juveniles unknown); mouth terminal; mouth slightly oblique; teeth conical; longest dorsal ray > 16.7 % SL; longest dorsal spine > 13.4 % SL; pectoral fins > 22.8 % SL; upper caudal lobe > 29.9 % SL .: fusiform / normal.

🌀 Behaviour

Behavioural data for Sharp-toothed grunter is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

🐣 Oviparous
Spawning Season
spring
Spawn Location
Substrate
Fertilization
External

🌍 Habitat & Distribution

Freshwater; benthopelagic. Tropical

🌿 Ecology

Zone Preferences
💧 Freshwater

📐 Morphometrics

Length–Weight Relationship: W = 0.0123 × L3.04 (TL)
Max TL
17.6cm
Dorsal Spines
12
Dorsal Rays
13
Anal Spines
3
Anal Rays
9
Vertebrae
25

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Near Threatened
Assessment Date
2019

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
25.00/100
Low vulnerability
Body Shape
Fusiform / normal
Climate Zone
Tropical
Described By
Shelley, Delaval & Le Feuvre, 2017

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