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🌊 Marine Least Concern 🌡️ Tropical

Atoll coralbrotula

Diancistrus atollorum Schwarzhans, Møller & Nielsen, 2005
Max Length
5.8 cm
Max Weight
-
Lifespan
-
Trophic Level
3.3
Depth
1–4 m
Climate
Tropical
Resilience
-
Vulnerability
10.00/100
Typical Length
-
Depth Zone
reef

📖 Overview

Atoll coralbrotula (Diancistrus atollorum), first described by Schwarzhans, Møller & Nielsen, 2005 is a small fish in the family Dinematichthyidae (order Ophidiiformes). Adults typically reach 5.80 cm in maximum length. It inhabits marine coastal and open-ocean environments. Recorded depth range: 1 to 4 metres. It occurs in Tropical waters. It feeds on a mix of small fish and invertebrates as a mid-level predator. On the IUCN Red List, it is classified as Least Concern.

Scientific Name
Diancistrus atollorum
Authority
Schwarzhans, Møller & Nielsen, 2005
Habitat
Marine
Climate
Tropical
Body Shape
Elongated
IUCN Status
LC
Max Length
5.8 cm
Depth Range
1–4 m
Trophic Level
3.3
Vulnerability
10.00/100
Salinity
30–40 ppt

🐟 Physical Description

Dorsal soft rays (total): 72 - 76; Anal soft rays: 56 - 61; Vertebrae: 40 - 42. Diagnosis: Vertebrae 11+29–31=40–42, dorsal fin rays 72–76; anal fin rays 56–61; eyes small (about 2.0% SL); outer pseudoclasper deep, ear-lobe shaped, opened towards ventral; inner pseudoclasper firmly joined to outer pseudoclasper anteriorly, with supporter, forming a sharp, forward-inclined lobe; narrow scale patch on cheek, no scales on operculum; head profile slender; otolith length to height ratio >2.1 .: elongated.

🌀 Behaviour

Behavioural data for Atoll coralbrotula is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

🐣 Oviparous 📦 Batch Spawner
Spawning Season
spring-summer
Spawn Location
Pelagic
Fertilization
External

🌍 Habitat & Distribution

Marine; reef-associated; depth range 1 - 4 m . Tropical Central Pacific: Micronesian atolls, eastwards to Kiribati.

🌿 Ecology

Zone Preferences
🌊 Marine 🪸 Reef Associated
Trophic Level
3.3±0.5

📐 Morphometrics

Length–Weight Relationship: W = 0.00389 × L3.12 (TL)
Max TL
5.8cm
Dorsal Rays
74
Anal Rays
59
Vertebrae
41

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2019

📊 Population Risk & Fisheries

Fishing Vulnerability
10.00/100
Low vulnerability
Trophic Level
3.3
Predator
Body Shape
Elongated
Climate Zone
Tropical
Described By
Schwarzhans, Møller & Nielsen, 2005

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