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🌊 Marine Least Concern 🌡️ Tropical

Professor brotula

Ogilbia boydwalkeri Møller, Schwarzhans & Nielsen, 2005
Max Length
6.1 cm
Max Weight
-
Lifespan
-
Trophic Level
3.3
Depth
0–8 m
Climate
Tropical
Resilience
-
Vulnerability
10.00/100
Typical Length
-
Depth Zone
demersal

📖 Overview

Professor brotula (Ogilbia boydwalkeri), first described by Møller, Schwarzhans & Nielsen, 2005 is a small fish in the family Dinematichthyidae (order Ophidiiformes). Adults typically reach 6.10 cm in maximum length. It inhabits marine coastal and open-ocean environments. Recorded depth range: 0 to 8 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
Ogilbia boydwalkeri
Authority
Møller, Schwarzhans & Nielsen, 2005
Habitat
Marine
Climate
Tropical
IUCN Status
LC
Max Length
6.1 cm
Depth Range
0–8 m
Trophic Level
3.3
Vulnerability
10.00/100
Salinity
30–40 ppt

🐟 Physical Description

Dorsal soft rays (total): 64 - 72; Anal soft rays: 49 - 54; Vertebrae: 39 - 41. The species is distinguished by the following characters: vertebrae 11 + 28-30 = 39-41, dorsal fin rays 64-72, anal fin rays 49-54; outer pseudoclasper is broad, wingshaped with single curved supporter; inner pseudoclasper with three lobes, consisting of a branched supporter, anterior branch curved and long, posterior branch short, and a thick fleshy lobe in between; penis with no abrupt change in thickness; opercular spine with single, sharp tip in small specimens and bi- or tri-furcated in specimens > 45 mm SL; scale patch on cheeks is broad, with 8-10 vertical scale rows; otolith length: height ratio 2.2 .

🌀 Behaviour

Behavioural data for Professor brotula 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; demersal; depth range 0 - 8 m . Tropical

🌿 Ecology

Zone Preferences
🌊 Marine ⬇️ Benthic
Trophic Level
3.3±0.5

📐 Morphometrics

Length–Weight Relationship: W = 0.00389 × L3.12 (TL)
Max TL
6.1cm
Dorsal Rays
68
Anal Rays
52
Vertebrae
40

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2008

📊 Population Risk & Fisheries

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

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