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🌊 Marine Vulnerable 🌡️ Tropical

Cocos barnacle blenny

Acanthemblemaria atrata Hastings & Robertson, 1999
Max Length
3.2 cm
Max Weight
-
Lifespan
-
Trophic Level
3.2
Depth
5–31 m
Climate
Tropical
Resilience
-
Vulnerability
10.00/100
Typical Length
-
Depth Zone
demersal

📖 Overview

A small benthic reef fish which is common in shallow water, but also occurs to depths of at least 31 meters . Oviparous . Eggs are attached to the walls of the parent's shelter and are brooded by the male parent .

Scientific Name
Acanthemblemaria atrata
Authority
Hastings & Robertson, 1999
Habitat
Marine
Climate
Tropical
Body Shape
Elongated
IUCN Status
VU
Max Length
3.2 cm
Depth Range
5–31 m
Trophic Level
3.2
Vulnerability
10.00/100
Salinity
30–40 ppt

🔬 Taxonomy

🐟 Physical Description

Dorsal spines (total): 22 - 25; Dorsal soft rays (total): 11 - 14; Anal spines: 2; Anal soft rays: 23 - 26; Vertebrae: 40 - 43. This species is distinguished by the following characters: 1-2 pairs of large iridescent blue spots on the upper lip; relatively small body size; 2 common pores (sensory pores between the mandibular and preopercular series); a closed wedge of spines on the posterior part of the frontal; 2 rows of interorbital spines, the outer one continuous; D XXII-XXV,11-14 (35-37 total dorsal-fin elements; A II,23-26 .: elongated.

🌀 Behaviour

Behavioural data for Cocos barnacle blenny is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

🐣 Oviparous

Oviparous . Males guard the eggs until they hatch . Also Ref. 101194.

🌍 Habitat & Distribution

Marine; demersal; depth range 5 - 31 m . Tropical Central Pacific: Cocos Island (Costa Rica).

🌿 Ecology

Zone Preferences
🌊 Marine ⬇️ Benthic
Trophic Level
3.2±0.4

📐 Morphometrics

Length–Weight Relationship: W = 0.00525 × L3.06 (TL)
Max TL
3.2cm
Dorsal Spines
24
Dorsal Rays
13
Anal Spines
2
Anal Rays
25
Vertebrae
42

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Vulnerable
Assessment Date
2007

📊 Population Risk & Fisheries

Fishing Vulnerability
10.00/100
Low vulnerability
Trophic Level
3.2
Predator
Body Shape
Elongated
Climate Zone
Tropical
Described By
Hastings & Robertson, 1999

🌐 Names & Taxonomy

Language Common Names
🇬🇧English Cocos Barnacle Blenny
🇮🇹Italian Bavosa dell'isola del Cocco
🇵🇹Portuguese Tubícula-de-Cocos
🇪🇸Spanish Trambollín-cirripedio del Coco · Tubícola de Cocos

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 1 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

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