New 🐟 Mercury Safety Guide & Omega-3 Rankings Updated for 2026. View Omega-3 Rankings →

🌊 Marine 🌡️ Temperate

Radiated shanny

Ulvaria subbifurcata Storer, 1839
Max Length
18 cm
Max Weight
-
Lifespan
-
Trophic Level
4.4
Depth
-
Climate
Temperate
Resilience
Medium
Vulnerability
40.00/100
Typical Length
-
Depth Zone
-

📖 Overview

Found among algae on rocky shores and on hard bottom in deeper water, or depth of 55 meters or more . Male guards multiple egg masses .

Scientific Name
Ulvaria subbifurcata
Authority
Storer, 1839
Habitat
Marine
Climate
Temperate
Max Length
18 cm
Trophic Level
4.4
Resilience
Medium
Vulnerability
40.00/100
Salinity
30–40 ppt

🔬 Taxonomy

🐟 Physical Description

Physical description for Radiated shanny is currently being compiled.

🌀 Behaviour

Behavioural data for Radiated shanny is currently being reviewed.

🦐 Diet

Diet information for Radiated shanny is currently being compiled.

🥚 Reproduction

Eggs are laid in several clumps or masses which are guarded by the male parent . Also Ref. 101194.

🌍 Habitat & Distribution

Marine; benthopelagic. Temperate; 52°N - 41°N, 72°W - 47°W Northwest Atlantic: northern Newfoundland (Strait of Belle Isle) in Canada to southern Massachusetts in USA.

🌿 Ecology

Zone Preferences
🌊 Marine
Trophic Level
4.4

📐 Morphometrics

Length–Weight Relationship: W = 0.0038 × L3.16 (TL)
Max TL
18cm

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

📊 Population Risk & Fisheries

Population Resilience
Medium
Minimum doubling time
Fishing Vulnerability
40.00/100
Moderate vulnerability
Trophic Level
4.4
Apex / Top predator
Climate Zone
Temperate
Described By
Storer, 1839

🌐 Names & Taxonomy

Language Common Names
🇬🇧English Crinkly Dick · Radiated Shanny
🇫🇷French Ulvaire deux lignes · ulvaire deux-lignes
🇷🇺Russian Ульвария

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 572 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

Aquareap Community Observations
0 Observations logged on Aquareap

No observations yet - be the first to log one!

View all observations for Radiated shanny ↗
Suggest an Edit

Spotted incorrect or outdated data? Submit a correction and our editorial team will review it. Approved edits go live within 48 hours.

Link to a scientific paper, FishBase, or other authoritative source
Report an Issue

Found a factual error, broken data, or inappropriate content? Let us know and we will investigate promptly.