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🌊 Marine Least Concern 🌡️ Temperate

Halfmoon

Medialuna californiensis Steindachner, 1876
Max Length
48 cm
Max Weight
Lifespan
8 yrs
Trophic Level
2.7
Depth
0–40 m
Climate
Temperate
Resilience
Medium
Vulnerability
34.00/100
Typical Length
Depth Zone
demersal

📖 Overview

Often occur in rocky areas and in kelp beds. Found from inshore areas to 40 m depth. Feed on seaweed and small invertebrates. Pelagic spawner . Also caught with harpoons. The flesh is of excellent quality and is marketed fresh .

Scientific Name
Medialuna californiensis
Authority
Steindachner, 1876
Habitat
Marine
Climate
Temperate
IUCN Status
LC
Max Length
48 cm
Lifespan
8 years
Depth Range
0–40 m
Trophic Level
2.7
Resilience
Medium
Vulnerability
34.00/100
Salinity
30–40 ppt

🔬 Taxonomy

🐟 Physical Description

Physical description for Halfmoon is currently being compiled.

🌀 Behaviour

Behavioural data for Halfmoon is currently being reviewed.

🦐 Diet

Diet information for Halfmoon is currently being compiled.

🥚 Reproduction

Spawn Location
Pelagic

Pelagic spawner .

🌍 Habitat & Distribution

Marine; demersal; depth range 0 - 40 m . Temperate; 51°N - 14°N, 129°W - 92°W north of Point Conception in California, USA.

🌿 Ecology

Zone Preferences
🌊 Marine ⬇️ Benthic
Trophic Level
2.7±0.22
Food Items

seaweed and small invertebrates

📐 Morphometrics

Length–Weight Relationship: W = 0.01122 × L3.04 (TL)
Max TL
48cm

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2007

📊 Population Risk & Fisheries

Population Resilience
Medium
Minimum doubling time
Fishing Vulnerability
34.00/100
Low vulnerability
Trophic Level
2.7
Omnivore / Planktivore
Climate Zone
Temperate
Described By
Steindachner, 1876

🌐 Names & Taxonomy

Language Common Names
🇬🇧English halfmoon
🏳️Catalan Mitja lluna del nord
🌍CES tloušťovka chutná
🇩🇰Danish Halvmåne-rorfisk
🇫🇷French Calicagère demi-lune · demi-lune
🇵🇹Portuguese Medialuna-da-Califórnia
🇷🇺Russian Калифорнийский полулунник
🇪🇸Spanish chopa medialuna

Scientific Synonyms

Scientific Name Author Year Status
Scorpis californiensis Steindachner 1876 Synonym

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) — 13 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

Aquareap Community Observations
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View all observations for Halfmoon ↗
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