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

🌊 Marine Least Concern 🌡️ Boreal

Alcichthys Elongatus

Alcichthys elongatus Steindachner, 1881
Max Length
44 cm
Max Weight
1.0 kg
Lifespan
Trophic Level
3.6
Depth
15–269 m
Climate
Boreal
Resilience
Very low
Vulnerability
65.00/100
Typical Length
31.5 cm
Depth Zone
demersal

📖 Overview

Alcichthys Elongatus (Alcichthys elongatus) is a ray-finned fish. It inhabits marine (saltwater) waters in benthic environments. This species can reach a maximum total length of 44 cm. It occurs at depths between 15 and 269 metres. With a trophic level of 3.6, it is a mid-level predator. It is assessed as Least Concern on the IUCN Red List.

Scientific Name
Alcichthys elongatus
Authority
Steindachner, 1881
Habitat
Marine
Climate
Boreal
IUCN Status
LC
Max Length
44 cm
Max Weight
1 kg
Depth Range
15–269 m
Trophic Level
3.6
Resilience
Very low
Vulnerability
65.00/100
Salinity
30–40 ppt

🔬 Taxonomy

Genus
Alcichthys
Alcichthys
Species
Alcichthys Elongatus
Alcichthys elongatus

🐟 Physical Description

Dorsal spines (total): 9 - 10; Dorsal soft rays (total): 14 - 17; Anal spines: 0; Anal soft rays: 13 - 16.

🌀 Behaviour

Behavioural data for Alcichthys Elongatus is currently being reviewed.

🦐 Diet

Diet information for Alcichthys Elongatus is currently being compiled.

🥚 Reproduction

Fertilization
External

External fertilization with internal insemination . This is also called 'internal gametic association' which describes another unique phenomenon of the reproductive process. In this phenomenon, the presence of the spermatozoa in the ovarian cavity is done through copulation, but the spermatozoa entry into the egg and subsequent fertilization only occurred externally when the eggs are spawned and came into contact with seawater .

🌍 Habitat & Distribution

Marine; demersal; depth range 15 - 269 m . Boreal Northwest Pacific: Japan and the Sea of Okhotsk.

🌿 Ecology

Zone Preferences
🌊 Marine ⬇️ Benthic
Trophic Level
3.6±0.4

📐 Morphometrics

Length–Weight Relationship: W = 0.00603 × L3.15 (TL)
Max TL
44cm
Max Weight
1,000g
Dorsal Spines
10
Dorsal Rays
16
Anal Rays
15

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2009

📊 Population Risk & Fisheries

Population Resilience
Very low
Minimum doubling time
Fishing Vulnerability
65.00/100
High vulnerability
Trophic Level
3.6
Predator
Climate Zone
Boreal
Described By
Steindachner, 1881

👥 Community & Contribute

Aquareap Community Observations
0 Observations logged on Aquareap

No observations yet — be the first to log one!

View all observations for Alcichthys Elongatus ↗
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.