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🌊 Marine Least Concern 🌡️ Tropical

Blacktail dottyback

Pseudochromis melanurus Gill, 2004
Max Length
4 cm
Max Weight
-
Lifespan
-
Trophic Level
3.3
Depth
0–10 m
Climate
Tropical
Resilience
-
Vulnerability
10.00/100
Typical Length
-
Depth Zone
reef

📖 Overview

Blacktail dottyback (Pseudochromis melanurus) is a ray-finned fish of the family Pseudochromidae. It inhabits marine (saltwater) waters in reef-associated environments. This species can reach a maximum total length of 4 cm. It occurs at depths between 0 and 10 metres. With a trophic level of 3.3, it is a low-level carnivore, feeding on invertebrates and small organisms. It is assessed as Least Concern on the IUCN Red List.

Scientific Name
Pseudochromis melanurus
Authority
Gill, 2004
Habitat
Marine
Climate
Tropical
IUCN Status
LC
Max Length
4 cm
Depth Range
0–10 m
Trophic Level
3.3
Vulnerability
10.00/100
Salinity
30–40 ppt

🐟 Physical Description

Dorsal spines (total): 3; Dorsal soft rays (total): 21 - 22; Anal spines: 3; Anal soft rays: 12 - 14; Vertebrae: 26 - 27. This species distinguished by the following characters: 21-22 (rarely 21) segmented dorsal-fin rays; 12-14 (rarely 12 or 14) segmented anal fin rays; weakly pungent to flexible anal spines, the second one varying from about as stout to less stout than the third; 29-35 (usually 30-33) scales in lateral series; 23-28 (usually 24-27) anterior lateral line scales; 10-12 scales below anterior lateral line; males with distinct coloration, head and body dark grey to black (dark brown to black when preserved), the lower part of head and body in front to anal-fin origin yellowish brown (when preserved pale brown to brown) .

🌀 Behaviour

Behavioural data for Blacktail dottyback is currently being reviewed.

🦐 Diet

Diet information for Blacktail dottyback is currently being compiled.

🥚 Reproduction

Reproduction data for Blacktail dottyback is currently being compiled.

🌍 Habitat & Distribution

Marine; reef-associated; depth range 0 - 10 m . Tropical

🌿 Ecology

Zone Preferences
🌊 Marine 🪸 Reef Associated
Trophic Level
3.3±0.5

📐 Morphometrics

Length–Weight Relationship: W = 0.0049 × L3.11 (TL)
Max TL
4cm
Dorsal Spines
3
Dorsal Rays
22
Anal Spines
3
Anal Rays
13
Vertebrae
27

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2015

📊 Population Risk & Fisheries

Fishing Vulnerability
10.00/100
Low vulnerability
Trophic Level
3.3
Predator
Climate Zone
Tropical
Described By
Gill, 2004

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