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🌊 Marine Least Concern 🌡️ Subtropical

Purple brotula

Grammonus diagrammus Heller & Snodgrass, 1903
Max Length
20.3 cm
Max Weight
Lifespan
Trophic Level
3.5
Depth
6–18 m
Climate
Subtropical
Resilience
High
Vulnerability
27.00/100
Typical Length
Depth Zone
reef

📖 Overview

Uncommon species . Inhabits rocky areas of shallow waters . Hides in dark caverns and crevices during the day, active at night . Gives birth to live young .

Scientific Name
Grammonus diagrammus
Authority
Heller & Snodgrass, 1903
Habitat
Marine
Climate
Subtropical
IUCN Status
LC
Max Length
20.3 cm
Depth Range
6–18 m
Trophic Level
3.5
Resilience
High
Vulnerability
27.00/100
Salinity
30–40 ppt

🔬 Taxonomy

🐟 Physical Description

Dorsal spines (total): 0; Dorsal soft rays (total): 95 - 115; Anal spines: 0; Anal soft rays: 75 - 91; Vertebrae: 60 - 63. Branchiostegal rays: 8 .

🌀 Behaviour

Behavioural data for Purple brotula is currently being reviewed.

🦐 Diet

Diet information for Purple brotula is currently being compiled.

🥚 Reproduction

🐣 Ovoviviparous

Ovoviviparous .

🌍 Habitat & Distribution

Marine; reef-associated; depth range 6 - 18 m . Subtropical south California, USA to Panama and the Galapagos Islands.

🌿 Ecology

Zone Preferences
🌊 Marine 🪸 Reef Associated
Trophic Level
3.5±0.5

📐 Morphometrics

Length–Weight Relationship: W = 0.00468 × L3.03 (TL)
Max TL
20.3cm
Dorsal Rays
105
Anal Rays
83
Vertebrae
62

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2008

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
27.00/100
Low vulnerability
Trophic Level
3.5
Predator
Climate Zone
Subtropical
Described By
Heller & Snodgrass, 1903

🌐 Names & Taxonomy

Language Common Names
🇬🇧English purple brotula
🌍CES jeskyňovka nachová
🇷🇺Russian Пурпурный олигопус
🇪🇸Spanish Brótula · brótula púrpura

🗺️ Global Occurrence Map

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

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

Aquareap Community Observations
0 Observations logged on Aquareap

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View all observations for Purple brotula ↗
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