New 🐟 Mercury Safety Guide & Omega-3 Rankings Updated for 2026. View Omega-3 Rankings →

🌊 Marine 🌡️ Tropical

Threespine grubfish

Simipercis trispinosa Johnson & Randall, 2006
Max Length
13.5 cm
Max Weight
-
Lifespan
-
Trophic Level
3.5
Depth
51–170 m
Climate
Tropical
Resilience
High
Vulnerability
24.00/100
Typical Length
-
Depth Zone
-

📖 Overview

Threespine grubfish (Simipercis trispinosa), first described by Johnson & Randall, 2006 is a small fish. Adults typically reach 13.50 cm in maximum length. It inhabits marine coastal and open-ocean environments. Recorded depth range: 51 to 170 metres. It occurs in Tropical waters. It feeds on a mix of small fish and invertebrates as a mid-level predator.

Scientific Name
Simipercis trispinosa
Authority
Johnson & Randall, 2006
Habitat
Marine
Climate
Tropical
Max Length
13.5 cm
Depth Range
51–170 m
Trophic Level
3.5
Resilience
High
Vulnerability
24.00/100
Salinity
30–40 ppt

🔬 Taxonomy

Genus
Simipercis
Simipercis
Species
Threespine grubfish
Simipercis trispinosa

🐟 Physical Description

Vertebrae: 30 - 31. This species is distinguished in having 3 dorsal spines; a low naked fleshy nuchal crest ; dorsal angle of opercular bone broad, not forming a distinct exposed, pointed spine. It also has the following features: vomer and palatines edentate; subopercle and preopercle entire; 10 abdominal and 20-21 caudal vertebrae; scales including those on head and pelvic region large and ctenoid; interorbital with a single row of large scales, extending to, or just beyond anterior margin of eye; suborbital scales reaching a vertical between anterior margin of pupil and anterior margin of eye; and, head and body moderately compressed (body width 1.3- 1.55 in depth in adults) .

🌀 Behaviour

Behavioural data for Threespine grubfish is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

Size at Maturity
10cm TL

🌍 Habitat & Distribution

Marine; benthopelagic; depth range 51 - 170 m . Tropical

🌿 Ecology

Zone Preferences
🌊 Marine
Trophic Level
3.5±0.5

📐 Morphometrics

Length–Weight Relationship: W = 0.00646 × L3.07 (TL)
Max TL
13.5cm
Vertebrae
31

🌡️ 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
3.5
Predator
Climate Zone
Tropical
Described By
Johnson & Randall, 2006

👥 Community & Contribute

Aquareap Community Observations
0 Observations logged on Aquareap

No observations yet - be the first to log one!

View all observations for Threespine grubfish ↗
Suggest an Edit

Spotted incorrect or outdated data? Submit a correction and our editorial team will review it. Approved edits go live within 48 hours.

Link to a scientific paper, FishBase, or other authoritative source
Report an Issue

Found a factual error, broken data, or inappropriate content? Let us know and we will investigate promptly.