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🌊 Marine Least Concern 🌡️ Tropical

Orangetail filefish

Pervagor aspricaudus Hollard, 1854
Max Length
13 cm
Max Weight
-
Lifespan
-
Trophic Level
2.9
Depth
1–25 m
Climate
Tropical
Resilience
High
Vulnerability
19.00/100
Typical Length
-
Depth Zone
reef

📖 Overview

Orangetail filefish (Pervagor aspricaudus) is a ray-finned fish of the family Monacanthidae. It inhabits marine (saltwater) waters in reef-associated environments. This species can reach a maximum total length of 13 cm. It occurs at depths between 1 and 25 metres. With a trophic level of 2.9, 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
Pervagor aspricaudus
Authority
Hollard, 1854
Habitat
Marine
Climate
Tropical
Body Shape
Short and / or deep
IUCN Status
LC
Max Length
13 cm
Depth Range
1–25 m
Latitude
23°S – 31°N
Trophic Level
2.9
Resilience
High
Vulnerability
19.00/100
Salinity
30–40 ppt

🐟 Physical Description

Dorsal spines (total): 1 - 2; Dorsal soft rays (total): 31 - 35; Anal spines: 0; Anal soft rays: 28 - 32. First dorsal spine strong. Posterior margin of ventral flap narrowly attached to large pelvic fin rudiment. Scale spinulation in midbody not closely packed. Body and head color variable; orange to brown iris; caudal fin yellow or orange; soft dorsal and anal fins clear to yellowish; spinous dorsal dark brown to brownish orange; pectorals clear. Numerous spots in head and body appear as dashes or lines Male scale ridge rugosities usually develop at about 60 mm SL.: short and / or deep; Cross section: compressed.

🌀 Behaviour

Behavioural data for Orangetail filefish 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 1 - 25 m . Tropical; 31°N - 23°S West Pacific: Mauritius, Christmas Island, southern Japan, Marcus Islands, southern Taiwan, Australia, New Caledonia, Marshall Islands, Johnston Island, and Hawaiian Islands; distribution anti-equatorial.

🌿 Ecology

Zone Preferences
🌊 Marine 🪸 Reef Associated
Trophic Level
2.9±0.4
🧍 Solitary

📐 Morphometrics

Length–Weight Relationship: W = 0.0195 × L2.93 (TL)
Max TL
13cm
Dorsal Spines
2
Dorsal Rays
33
Anal Rays
30

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2015

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
19.00/100
Low vulnerability
Trophic Level
2.9
Omnivore / Planktivore
Body Shape
Short and / or deep
Climate Zone
Tropical
Latitude Range
31°N – 23°S
Described By
Hollard, 1854

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