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🌊 Marine Least Concern 🌡️ Tropical

Redspot dartfish

Ptereleotris rubristigma Allen, Erdmann & Cahyani, 2012
Max Length
7.4 cm
Max Weight
-
Lifespan
-
Trophic Level
3.3
Depth
15–60 m
Climate
Tropical
Resilience
-
Vulnerability
10.00/100
Typical Length
-
Depth Zone
reef

📖 Overview

Redspot dartfish (Ptereleotris rubristigma), first described by Allen, Erdmann & Cahyani, 2012 is a small fish in the family Microdesmidae (order Gobiiformes). Adults typically reach 7.40 cm in maximum length. It inhabits marine coastal and open-ocean environments. Recorded depth range: 15 to 60 metres. It occurs in Tropical 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 Least Concern.

Scientific Name
Ptereleotris rubristigma
Authority
Allen, Erdmann & Cahyani, 2012
Habitat
Marine
Climate
Tropical
Body Shape
Elongated
IUCN Status
LC
Max Length
7.4 cm
Depth Range
15–60 m
Trophic Level
3.3
Vulnerability
10.00/100
Salinity
30–40 ppt

🐟 Physical Description

Dorsal spines (total): 6 - 7; Dorsal soft rays (total): 25; Anal spines: 1; Anal soft rays: 23 - 24; Vertebrae: 26. : elongated; Cross section: oval.

🌀 Behaviour

Behavioural data for Redspot dartfish 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; reef-associated; depth range 15 - 60 m . Tropical East Indian region.

🌿 Ecology

Zone Preferences
🌊 Marine 🪸 Reef Associated
Trophic Level
3.3±0.4

📐 Morphometrics

Length–Weight Relationship: W = 0.00389 × L3.12 (TL)
Max TL
7.4cm
Dorsal Spines
7
Dorsal Rays
25
Anal Spines
1
Anal Rays
24
Vertebrae
26

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2024

📊 Population Risk & Fisheries

Fishing Vulnerability
10.00/100
Low vulnerability
Trophic Level
3.3
Predator
Body Shape
Elongated
Climate Zone
Tropical
Described By
Allen, Erdmann & Cahyani, 2012

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