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🌊 Marine 🌡️ Temperate

Stout rockfish

Acanthoclinus marilynae Hardy, 1985
Max Length
17 cm
Max Weight
-
Lifespan
-
Trophic Level
3.7
Depth
0–80 m
Climate
Temperate
Resilience
Medium
Vulnerability
29.00/100
Typical Length
-
Depth Zone
demersal

📖 Overview

Adults are common in the subtidal zone but may be found in rock pools. Feed on small fishes such as triplefins . Eggs are guarded by the male parent .

Scientific Name
Acanthoclinus marilynae
Authority
Hardy, 1985
Habitat
Marine
Climate
Temperate
Body Shape
Elongated
Max Length
17 cm
Depth Range
0–80 m
Trophic Level
3.7
Resilience
Medium
Vulnerability
29.00/100
Migration
Non-migratory
Salinity
30–40 ppt

🐟 Physical Description

Dorsal spines (total): 19; Dorsal soft rays (total): 4 - 5; Anal spines: 10 - 12; Anal soft rays: 3 - 5. Head and body mottled light to dark brown to deep chocolate brown throughout. Fin membranes greyish brown to black with tips of dorsal and anal fins white or orange. Distinguished from other rockfishes in having 10-12 spines in the anal fin.: elongated.

🌀 Behaviour

Behavioural data for Stout rockfish is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

🐣 Oviparous 📦 Batch Spawner
Spawning Season
spring-summer
Spawn Location
Pelagic
Fertilization
External

Eggs are guarded by the male parent .

🌍 Habitat & Distribution

Marine; demersal; non-migratory; depth range 0 - 80 m . Temperate; 34°S - 37°S, 172°E - 176°E Southwest Pacific: endemic to New Zealand.

🌿 Ecology

Zone Preferences
🌊 Marine ⬇️ Benthic
Migration
Non-migratory
Trophic Level
3.7±0.61
Food Items

small fishes such as triplefins (Ref

📐 Morphometrics

Length–Weight Relationship: W = 0.00457 × L3.1 (TL)
Max TL
17cm
Dorsal Spines
19
Dorsal Rays
5
Anal Spines
11
Anal Rays
4

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

📊 Population Risk & Fisheries

Population Resilience
Medium
Minimum doubling time
Fishing Vulnerability
29.00/100
Low vulnerability
Trophic Level
3.7
Predator
Body Shape
Elongated
Climate Zone
Temperate
Described By
Hardy, 1985

👥 Community & Contribute

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