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🌊 Marine 🌡️ Tropical

Owstonia Crassa

Owstonia crassa Vaniz & Johnson, 2016
Max Length
19 cm
Max Weight
-
Lifespan
-
Trophic Level
3.3
Depth
380–550 m
Climate
Tropical
Resilience
High
Vulnerability
24.00/100
Typical Length
-
Depth Zone
demersal

📖 Overview

Owstonia Crassa (Owstonia crassa), first described by Vaniz & Johnson, 2016 is a medium-sized fish in the family Cepolidae (order Perciformes). Adults typically reach 19.00 cm in maximum length. It inhabits marine coastal and open-ocean environments. Recorded depth range: 380 to 550 metres. It occurs in Tropical waters. It feeds on a mix of small fish and invertebrates as a mid-level predator.

Scientific Name
Owstonia crassa
Authority
Vaniz & Johnson, 2016
Habitat
Marine
Climate
Tropical
Body Shape
Elongated
Max Length
19 cm
Depth Range
380–550 m
Trophic Level
3.3
Resilience
High
Vulnerability
24.00/100
Salinity
30–40 ppt

🐟 Physical Description

Dorsal spines (total): 3; Dorsal soft rays (total): 19 - 21; Anal spines: 1; Anal soft rays: 12 - 13; Vertebrae: 28. This species is distinguished by the following characters: LL pattern type 1; D III,19-21; A I,12-13; the lower limb margin of preopercle without spines; a prominent dark premaxillary stripe; adults with 15-22 teeth in outer row of each premaxilla .: elongated; Cross section: compressed.

🌀 Behaviour

Behavioural data for Owstonia Crassa 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; depth range 380 - 550 m . Tropical

🌿 Ecology

Zone Preferences
🌊 Marine ⬇️ Benthic
Trophic Level
3.3±0.4

📐 Morphometrics

Length–Weight Relationship: W = 0.00389 × L3.12 (TL)
Max TL
19cm
Dorsal Spines
3
Dorsal Rays
20
Anal Spines
1
Anal Rays
13
Vertebrae
28

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
24.00/100
Low vulnerability
Trophic Level
3.3
Predator
Body Shape
Elongated
Climate Zone
Tropical
Described By
Vaniz & Johnson, 2016

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