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🌊 Marine 🌡️ Temperate

Little rockfish

Acanthoclinus rua Hardy, 1985
Max Length
11.5 cm
Max Weight
-
Lifespan
-
Trophic Level
3.4
Depth
0–80 m
Climate
Temperate
Resilience
High
Vulnerability
24.00/100
Typical Length
-
Depth Zone
demersal

📖 Overview

Adults occur in the subtidal zone but may be found in rock pools at low tide . Eggs are guarded by the male parent .

Scientific Name
Acanthoclinus rua
Authority
Hardy, 1985
Habitat
Marine
Climate
Temperate
Body Shape
Elongated
Max Length
11.5 cm
Depth Range
0–80 m
Trophic Level
3.4
Resilience
High
Vulnerability
24.00/100
Migration
Non-migratory
Salinity
30–40 ppt

🐟 Physical Description

Dorsal spines (total): 12 - 14; Dorsal soft rays (total): 3 - 4; Anal spines: 14 - 15; Anal soft rays: 3 - 4. Head and body uniformly brown with a darker blotch on the gill cover. Forehead with a pale stripe. Dorsal and anal fins with orange tips. Distinguished from other rockfishes by its small size, undivided lower lateral line and the single pair of pores on the chin.: elongated.

🌀 Behaviour

Behavioural data for Little 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 Southwest Pacific: endemic to New Zealand.

🌿 Ecology

Zone Preferences
🌊 Marine ⬇️ Benthic
Migration
Non-migratory
Trophic Level
3.4±0.6

📐 Morphometrics

Length–Weight Relationship: W = 0.00457 × L3.1 (TL)
Max TL
11.5cm
Dorsal Spines
13
Dorsal Rays
4
Anal Spines
15
Anal Rays
4

🌡️ 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
3.4
Predator
Body Shape
Elongated
Climate Zone
Temperate
Described By
Hardy, 1985

👥 Community & Contribute

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