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Squirrelfish

Holocentrus adscensionis Osbeck, 1765
Max Length
61 cm
Max Weight
-
Lifespan
-
Trophic Level
3.1
Depth
0–180 m
Climate
Subtropical
Resilience
Medium
Vulnerability
36.00/100
Typical Length
25 cm
Depth Zone
reef

📖 Overview

Occurs in shallow coral reefs, as well as deeper offshore waters . A nocturnal species, hiding in deep crevices or under coral ledges during the day; at night it usually moves over sand and grass beds, taking mainly crabs and other small crustaceans . Capable of producing sounds . Spawning documented as far north as North Carolina in May . Marketed fresh .

Scientific Name
Holocentrus adscensionis
Authority
Osbeck, 1765
Habitat
Marine
Climate
Subtropical
Body Shape
Fusiform / normal
IUCN Status
LC
Max Length
61 cm
Depth Range
0–180 m
Latitude
25°S – 37°N
Trophic Level
3.1
Resilience
Medium
Vulnerability
36.00/100
Salinity
30–40 ppt

🔬 Taxonomy

🐟 Physical Description

Dorsal spines (total): 11; Dorsal soft rays (total): 15 - 16; Anal spines: 4; Anal soft rays: 9 - 10. Tip of membranes of spinous dorsal fin reddish or translucent, not whitish; posterior margin of upper jaw reaching posterior margin of pupil . Spiny and soft parts of dorsal fin nearly separate, but connected by low membrane . Dull red or pinkish, sometimes blotched .: fusiform / normal.

🌀 Behaviour

Behavioural data for Squirrelfish is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

Size at Maturity
14.6cm TL

🌍 Habitat & Distribution

Marine; reef-associated; depth range 0 - 180 m , usually 8 - 30 m . Subtropical; 37°N - 25°S, 97°W - 13°E Central Atlantic: North Carolina, USA and Bermuda to Brazil, including the Gulf of Mexico and throughout the West Indies and Caribbean shores (Ref.

🌿 Ecology

Zone Preferences
🌊 Marine 🪸 Reef Associated
Trophic Level
3.1±0.3
🌙 Nocturnal

📐 Morphometrics

Length–Weight Relationship: W = 0.01585 × L2.95 (TL)
Max TL
61cm
Dorsal Spines
11
Dorsal Rays
16
Anal Spines
4
Anal Rays
10

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2013

📊 Population Risk & Fisheries

Population Resilience
Medium
Minimum doubling time
Fishing Vulnerability
36.00/100
Moderate vulnerability
Trophic Level
3.1
Predator
Body Shape
Fusiform / normal
Climate Zone
Subtropical
Latitude Range
37°N – 25°S
Described By
Osbeck, 1765

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 318 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

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