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🌊 Marine Least Concern 🌡️ Subtropical

Man-of-war fish

Nomeus gronovii Gmelin, 1789
Nomeus Gronovii (Nomeus gronovii)
Nomeus Gronovii (Nomeus gronovii)
Max Length
39 cm
Max Weight
-
Lifespan
-
Trophic Level
3.7
Depth
200–1000 m
Climate
Subtropical
Resilience
High
Vulnerability
26.00/100
Typical Length
-
Depth Zone
demersal

📖 Overview

Found offshore in warm waters. Juveniles pelagic in coastal and offshore waters down to at least 30 m, but adults possibly demersal in deep water . Occur in association with floating Portuguese man-of-war, Physalia, feeding on its tentacles and gonads and may drift with it into shore waters with proper wind conditions . Probably also feed on other soft-bodied jellyfish as well as on zooplankton.

Scientific Name
Nomeus gronovii
Authority
Gmelin, 1789
Habitat
Marine
Climate
Subtropical
Body Shape
Fusiform / normal
IUCN Status
LC
Max Length
39 cm
Depth Range
200–1000 m
Latitude
45°S – 52°N
Trophic Level
3.7
Resilience
High
Vulnerability
26.00/100
Salinity
30–40 ppt

🔬 Taxonomy

🐟 Physical Description

Dorsal spines (total): 9 - 13; Dorsal soft rays (total): 24 - 28; Anal spines: 1 - 2; Anal soft rays: 24 - 29; Vertebrae: 41. Juveniles whitish or silvery with dark blue mottlings; pelvic fins black . Dark blue above, side silvery with patches of dark blue. Pelvic fin with inner rays joined to abdomen by membrane for its entire length .: fusiform / normal.

🌀 Behaviour

Behavioural data for Man-of-war fish is currently being reviewed.

🦐 Diet

Diet information for Man-of-war fish is currently being compiled.

🥚 Reproduction

Reproduction data for Man-of-war fish is currently being compiled.

🌍 Habitat & Distribution

Marine; demersal; depth range 200 - 1000 m . Subtropical; 52°N - 45°S west Africa and the Canary Islands (Ref.

🌿 Ecology

Zone Preferences
🌊 Marine ⬇️ Benthic
Trophic Level
3.7±0.38
Food Items

other soft-bodied jellyfish as well as on zooplankton (Ref

📐 Morphometrics

Length–Weight Relationship: W = 0.00955 × L3.09 (TL)
Max TL
39cm
Dorsal Spines
11
Dorsal Rays
26
Anal Spines
2
Anal Rays
27
Vertebrae
41

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2013

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
26.00/100
Low vulnerability
Trophic Level
3.7
Predator
Body Shape
Fusiform / normal
Climate Zone
Subtropical
Latitude Range
52°N – 45°S
Described By
Gmelin, 1789

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 39 records indexed .

Occurrence density from GBIF View GBIF records ↗

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