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

🌊 Marine Least Concern 🌡️ Tropical

Pearl blenny

Entomacrodus nigricans Gill, 1859
Max Length
10 cm
Max Weight
Lifespan
Trophic Level
2
Depth
0–6 m
Climate
Tropical
Resilience
High
Vulnerability
21.00/100
Typical Length
Depth Zone
reef

📖 Overview

Facultative air-breathing ; Adults occur in intertidal areas , like tide pools, rocky slopes, and places where there are boulders on the bottom . Actively shuttle back and forth between rock-pools and air . They breathe air and can remain out of water for up to 2 hours if kept moist . Feed mainly on algae . Oviparous. Eggs are demersal and adhesive , and are attached to the substrate via a filamentous, adhesive pad or pedestal . Larvae are planktonic, often found in shallow, coastal waters .

Scientific Name
Entomacrodus nigricans
Authority
Gill, 1859
Habitat
Marine
Climate
Tropical
Body Shape
Elongated
IUCN Status
LC
Max Length
10 cm
Depth Range
0–6 m
Trophic Level
2
Resilience
High
Vulnerability
21.00/100
Salinity
30–40 ppt

🔬 Taxonomy

🐟 Physical Description

Dorsal spines (total): 13; Dorsal soft rays (total): 14 - 15; Anal spines: 2; Anal soft rays: 15 - 17; Vertebrae: 34. Olivaceous with 7 short dark brown double bars on side of body and rows of small pale blue spots .: elongated.

🌀 Behaviour

Behavioural data for Pearl blenny is currently being reviewed.

🦐 Diet

Diet information for Pearl blenny is currently being compiled.

🥚 Reproduction

🐣 Oviparous

Oviparous, distinct pairing .

🌍 Habitat & Distribution

Marine; reef-associated; depth range 0 - 6 m , usually 0 - 3 m . Tropical; 32°N - 7°N, 92°W - 59°W South America.

🌿 Ecology

Zone Preferences
🌊 Marine 🪸 Reef Associated
Trophic Level
2
Food Items

algae (Ref

📐 Morphometrics

Length–Weight Relationship: W = 0.00759 × L3 (TL)
Max TL
10cm
Dorsal Spines
13
Dorsal Rays
15
Anal Spines
2
Anal Rays
16
Vertebrae
34

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2024

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
21.00/100
Low vulnerability
Trophic Level
2
Omnivore / Planktivore
Body Shape
Elongated
Climate Zone
Tropical
Described By
Gill, 1859

🌐 Names & Taxonomy

Language Common Names
🇬🇧English Pearl blenny
🌍CES slizoun černající
🇫🇷French Blennie perlée
🇮🇹Italian Bavosa perlata
🇪🇸Spanish blenio perlado · borracho perlado

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) — 67 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

Aquareap Community Observations
0 Observations logged on Aquareap

No observations yet — be the first to log one!

View all observations for Pearl blenny ↗
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.