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

🌊 Marine 🌡️ Temperate

Alectrias Markevichi

Alectrias markevichi Sheiko, 2012
Max Length
6.6 cm
Max Weight
-
Lifespan
-
Trophic Level
3.1
Depth
0–50 m
Climate
Temperate
Resilience
High
Vulnerability
29.00/100
Typical Length
-
Depth Zone
pelagic

📖 Overview

Found on rocky littoral formed of slightly flattened stones, 30-60 cm, with narrow slits that are partially filled with sand, gravel ad small stones. Stomachs contain small gastropods .

Scientific Name
Alectrias markevichi
Authority
Sheiko, 2012
Habitat
Marine
Climate
Temperate
Body Shape
Elongated
Max Length
6.6 cm
Depth Range
0–50 m
Trophic Level
3.1
Resilience
High
Vulnerability
29.00/100
Salinity
30–40 ppt

🐟 Physical Description

Dorsal soft rays (total): 62 - 63; Anal soft rays: 43 - 44; Vertebrae: 66 - 68. This species is distinguished by the following characters: thin and elongated body, its depth 10.2-14.1 (12.9) times in SL; small head, 6.6-8.0 (7.2) times in SL; small pectoral and caudal fins, 2.5-4.0 (3.0) and 1.9-2.7 (2.2) times HL, respectively; occipital commissure with 3 pores almost at the straight line; no pores near crest base and no medial tubule; postorbital canal usually with 6 pores (usually pore po2 is absent); preopercular canal with 4 pores; skinny crest on head with a smooth upper profile - in females, it is highest in the middle, while in males, it is highest near the posterior margin; distance between the anterior margin of medial pore of OC and origin of D is large, 0..5-9 (0.7) times in horizontal orbit diameter; scales present behind 2nd-8th ray of anal fin; D 62-63. P 7-9. V. 66-68; 13-16 spines of dorsal fin are thin and bending, at its end, there is only one shortened spine; anal fin begins under the 19th-21st ray of dorsal fin, its last ray is connected by a membrane with caudal fin 75-90 (85.4)% of its length; caudal fin with 8-11 branched rays; no branched rays on epural3; preural vertebrae with wide neural processes 11-18, and those with hemapophyseal plate 9-12; vertebrae with hemapophyseal plate, neural processes are noticeably shorter than hemal ones; top of head covered with small brown spots .: elongated; Cross section: compressed.

🌀 Behaviour

Behavioural data for Alectrias Markevichi is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

🐣 Oviparous 📦 Batch Spawner
Spawning Season
spring-summer
Spawn Location
Pelagic
Fertilization
External

🌍 Habitat & Distribution

Marine; pelagic-neritic; depth range 0 - 50 m , usually 30 - 50 m . Temperate Northwest Pacific: Japan, Peter the Great Bay and Moneron Island (the Sea of Japan), South Kuril Strait.

🌿 Ecology

Zone Preferences
🌊 Marine 🐟 Pelagic
Trophic Level
3.1±0.4

📐 Morphometrics

Length–Weight Relationship: W = 0.00389 × L3.12 (TL)
Max TL
6.6cm
Dorsal Rays
63
Anal Rays
44
Vertebrae
67

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
29.00/100
Low vulnerability
Trophic Level
3.1
Predator
Body Shape
Elongated
Climate Zone
Temperate
Described By
Sheiko, 2012

👥 Community & Contribute

Aquareap Community Observations
0 Observations logged on Aquareap

No observations yet - be the first to log one!

View all observations for Alectrias Markevichi ↗
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.