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🌊 Marine Data Deficient 🌡️ Tropical

Sad glider

Ptereleotris lineopinnis Fowler, 1935
Max Length
11.5 cm
Max Weight
-
Lifespan
-
Trophic Level
3.4
Depth
-
Climate
Tropical
Resilience
-
Vulnerability
10.00/100
Typical Length
-
Depth Zone
demersal

📖 Overview

The holotype was taken from the stomach of a flatfish (Arnoglossus) caught at a depth of 90 m off Natal.

Scientific Name
Ptereleotris lineopinnis
Authority
Fowler, 1935
Habitat
Marine
Climate
Tropical
Body Shape
Elongated
IUCN Status
DD
Max Length
11.5 cm
Trophic Level
3.4
Vulnerability
10.00/100
Salinity
30–40 ppt

🐟 Physical Description

Dorsal spines (total): 7; Dorsal soft rays (total): 36 - 37; Anal spines: 1; Anal soft rays: 33 - 35; Vertebrae: 26. Body mauve with shades of pale green; yellow snout; cheeks with large brown spots; violet spot below eye, banded with shades of bright yellow and emerald green. 2nd dorsal fin banded, tips of rays yellow; pectorals brownish caudal fin may have a large dark spot (described by Fowler from a single specimen found in the stomach of a flatfish). A black bar below anterior half of orbit crossing corner of mouth and extending onto chin.: elongated; Cross section: compressed.

🌀 Behaviour

Behavioural data for Sad glider 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. Tropical West Pacific: Natal, South Africa and the Mariana Islands.

🌿 Ecology

Zone Preferences
🌊 Marine ⬇️ Benthic
Trophic Level
3.4±0.4

📐 Morphometrics

Length–Weight Relationship: W = 0.00389 × L3.12 (TL)
Max TL
11.5cm
Dorsal Spines
7
Dorsal Rays
37
Anal Spines
1
Anal Rays
34
Vertebrae
26

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Data Deficient
Assessment Date
2015

📊 Population Risk & Fisheries

Fishing Vulnerability
10.00/100
Low vulnerability
Trophic Level
3.4
Predator
Body Shape
Elongated
Climate Zone
Tropical
Described By
Fowler, 1935

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