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🌊 Marine Least Concern 🌡️ Temperate

Violet roughy

Optivus agastos Gomon, 2004
Max Length
9.5 cm
Max Weight
-
Lifespan
-
Trophic Level
3.5
Depth
1–146 m
Climate
Temperate
Resilience
Medium
Vulnerability
41.00/100
Typical Length
-
Depth Zone
reef

📖 Overview

Overview information for Violet roughy is currently being compiled by our editorial team.

Scientific Name
Optivus agastos
Authority
Gomon, 2004
Habitat
Marine
Climate
Temperate
Body Shape
Fusiform / normal
IUCN Status
LC
Max Length
9.5 cm
Depth Range
1–146 m
Trophic Level
3.5
Resilience
Medium
Vulnerability
41.00/100
Salinity
30–40 ppt

🐟 Physical Description

Dorsal spines (total): 4 - 5; Dorsal soft rays (total): 10 - 11; Anal spines: 3; Anal soft rays: 9 - 10; Vertebrae: 26. This species is characterized by the following: gill rakers 22-25 (modally 23); lateral profile of nape and head nearly straight, distinctly angled downward in front of dorsal fin; snout tip rounded, often projecting slightly in front of upper jaw; depth of head at vertical through upper end of gill opening 2.9-3.2 times in SL; snout length 1.6-2.7 times in eye diameter; inner row of teeth on premaxilla is noticeably longer than others; caudal peduncle relatively short and deep, its depth 0.9-1.3 times in length; dorsal and anal fins are relatively low, third segmented dorsal-fin ray 3.5-4.2 times in SL, first anal-fin ray 5.2-6.3 times in SL; body color greenish brown on back, silvery below; fins almost uniformly pink, though slightly dusky tips to caudal-fin lobes lasting in recently preserved large specimens .: fusiform / normal.

🌀 Behaviour

Behavioural data for Violet roughy is currently being reviewed.

🦐 Diet

Diet information for Violet roughy is currently being compiled.

🥚 Reproduction

Reproduction data for Violet roughy is currently being compiled.

🌍 Habitat & Distribution

Marine; reef-associated; depth range 1 - 146 m . Temperate Southwest Pacific : Australia and New Zealand (Ref.

🌿 Ecology

Zone Preferences
🌊 Marine 🪸 Reef Associated
Trophic Level
3.5±0.6

📐 Morphometrics

Length–Weight Relationship: W = 0.01072 × L3.03 (TL)
Max TL
9.5cm
Dorsal Spines
5
Dorsal Rays
11
Anal Spines
3
Anal Rays
10
Vertebrae
26

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2019

📊 Population Risk & Fisheries

Population Resilience
Medium
Minimum doubling time
Fishing Vulnerability
41.00/100
Moderate vulnerability
Trophic Level
3.5
Predator
Body Shape
Fusiform / normal
Climate Zone
Temperate
Described By
Gomon, 2004

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