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💧 Freshwater Least Concern 🌡️ Subtropical

Atrilinea Roulei

Atrilinea roulei Wu, 1931
Max Length
15 cm
Max Weight
-
Lifespan
-
Trophic Level
2.4
Depth
-
Climate
Subtropical
Resilience
High
Vulnerability
23.00/100
Typical Length
12 cm
Depth Zone
-

📖 Overview

Adults live in upper reaches of rivers, often in groups in search for food. They feed on larvae of aquatic insects, diatoms and filiform algae . Utilized for food .

Scientific Name
Atrilinea roulei
Authority
Wu, 1931
Habitat
Freshwater
Climate
Subtropical
Body Shape
Elongated
IUCN Status
LC
Max Length
15 cm
Trophic Level
2.4
Resilience
High
Vulnerability
23.00/100
Salinity
0–0.5 ppt

🔬 Taxonomy

Genus
Atrilinea
Atrilinea
Species
Atrilinea Roulei
Atrilinea roulei

🐟 Physical Description

Body color dull black on back and upper sides of body, silvery white on lower sides and belly; with a markedly black stripe along lateral line. Origins of dorsal and pelvic fins opposite each other and located at the center of body; pectoral and pelvic fins short and small. Head small, pointed and slender; mouth large, corners reaching front edge of eyes and slit slanted .: elongated; Cross section: compressed.

🌀 Behaviour

Behavioural data for Atrilinea Roulei is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

🐣 Oviparous
Spawning Season
spring
Spawn Location
Substrate
Fertilization
External

🌍 Habitat & Distribution

Freshwater; benthopelagic. Subtropical

🌿 Ecology

Zone Preferences
💧 Freshwater
Trophic Level
2.4±0.2
Food Items

larvae of aquatic insects, diatoms and filiform algae (Ref

📐 Morphometrics

Length–Weight Relationship: W = 0.00631 × L3.07 (TL)
Max TL
15cm

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2011

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
23.00/100
Low vulnerability
Trophic Level
2.4
Omnivore / Planktivore
Body Shape
Elongated
Climate Zone
Subtropical
Described By
Wu, 1931

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