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💧 Freshwater Least Concern 🐠 Aquarium 🌡️ Temperate

Japanese Eight Barbel Loach

Lefua echigonia Jordan & Richardson, 1907
Max Length
7.1 cm
Max Weight
-
Lifespan
-
Trophic Level
2.8
Depth
-
Climate
Temperate
Resilience
Medium
Vulnerability
35.00/100
Typical Length
-
Depth Zone
demersal

📖 Overview

Japanese Eight Barbel Loach (Lefua echigonia), first described by Jordan & Richardson, 1907 is a small fish in the family Nemacheilidae (order Cypriniformes). Adults typically reach 7.10 cm in maximum length. It inhabits freshwater systems including rivers, streams, and lakes. It occurs in Temperate waters. It is broadly omnivorous, taking invertebrates, plant matter, and detritus. On the IUCN Red List, it is classified as Least Concern.The species is kept in the aquarium hobby. Care requirements and behaviour align broadly with other Nemacheilidae kept in the hobby.

Scientific Name
Lefua echigonia
Authority
Jordan & Richardson, 1907
Habitat
Freshwater
Climate
Temperate
Body Shape
Elongated
IUCN Status
LC
Max Length
7.1 cm
Trophic Level
2.8
Resilience
Medium
Vulnerability
35.00/100
Salinity
0–0.5 ppt

🔬 Taxonomy

Kingdom
Animalia
Phylum
Chordata
Class
Teleostei
Teleostei
Order
Cypriniformes
Cypriniformes
Family
Nemacheilidae
Nemacheilidae
Genus
Lefua
Lefua
Species
Japanese Eight Barbel Loach
Lefua echigonia

🐟 Physical Description

Dorsal spines (total): 0; Dorsal soft rays (total): 7 - 8; Anal spines: 0; Anal soft rays: 6. Body with tiny blackish-brown pots. No black longitudinal band on body of male.: elongated; Cross section: circular.

🌀 Behaviour

Behavioural data for Japanese Eight Barbel Loach is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

🐣 Oviparous
Spawning Season
spring
Spawn Location
Substrate
Fertilization
External

🌍 Habitat & Distribution

Freshwater; demersal. Temperate

🌿 Ecology

Zone Preferences
💧 Freshwater ⬇️ Benthic
Trophic Level
2.8±0.3

📐 Morphometrics

Length–Weight Relationship: W = 0.00724 × L3.01 (TL)
Max TL
7.1cm
Dorsal Rays
8
Anal Rays
6

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2018

📊 Population Risk & Fisheries

Population Resilience
Medium
Minimum doubling time
Fishing Vulnerability
35.00/100
Low vulnerability
Trophic Level
2.8
Omnivore / Planktivore
Body Shape
Elongated
Climate Zone
Temperate
Described By
Jordan & Richardson, 1907

🌐 Names & Taxonomy

Language Common Names
🇬🇧English Hotoke Loach · Japanese Eight Barbel Loach · Japanese eight barbeled loach
🌍CES mřenka echigonská
🇯🇵Japanese Hotoke-dojou · Hotokedojo · ホトケドジョウ
🇷🇺Russian Японский восьмиусый голец

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 14 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

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