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💧 Freshwater Data Deficient 🌡️ Tropical

Bagarius Rutilus

Bagarius rutilus Ng & Kottelat, 2000
Max Length
100 cm
Max Weight
-
Lifespan
-
Trophic Level
3.6
Depth
-
Climate
Tropical
Resilience
Very low
Vulnerability
71.00/100
Typical Length
-
Depth Zone
demersal

📖 Overview

Bagarius Rutilus (Bagarius rutilus) is a ray-finned fish of the family Sisoridae. It inhabits freshwater waters in benthic environments. This species can reach a maximum total length of 100 cm. With a trophic level of 3.6, it is a mid-level predator. It is assessed as Data Deficient on the IUCN Red List.

Scientific Name
Bagarius rutilus
Authority
Ng & Kottelat, 2000
Habitat
Freshwater
Climate
Tropical
Body Shape
Elongated
IUCN Status
DD
Max Length
100 cm
Trophic Level
3.6
Resilience
Very low
Vulnerability
71.00/100
Salinity
0–0.5 ppt

🐟 Physical Description

Dorsal spines (total): 1; Dorsal soft rays (total): 6; Anal soft rays: 12 - 13; Vertebrae: 42 - 43. Can be differentiated from its congeners in the combination of following characters: skin heavily keratinized, cranium and interneural covered with numerous large, elongate tubercles, supraoccipital and interneural without sharp ridges, skin above neural spines anterior and posterior to adipose fin never forming distinct ridges, slender elongate neural spines, elliptical eyes, body depth at anus 11.0-12.3 %SL, head width 20.3-21.7 %SL, snout length 51.4-54.7 %HL, eye diameter 4.1-8.1 %HL; 12-13 pectoral-fin rays; caudal fin with 8-9 rays; 23-24 preanal vertebrae; adipose fin with short base and angular dorsal margin; dark yellow on dorsal and lateral surfaces of head and body, fading to light yellow on ventral region; dorsal surfaces of head and body with three darkly pigmented (brown) bands or blotches; a few small brown spots irregularly distributed throughout lighter parts of body; light yellow fins with a variable pattern of small brown spots distributed irregularly, orange fins in life . Adipose origin in front or above anal fin origin; longitudinal diameter of eye 12-24 times in HL .: elongated; Cross section: compressed.

🌀 Behaviour

Behavioural data for Bagarius Rutilus 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. Tropical

🌿 Ecology

Zone Preferences
💧 Freshwater ⬇️ Benthic
Trophic Level
3.6±0.6

📐 Morphometrics

Length–Weight Relationship: W = 0.00692 × L3.03 (TL)
Max TL
100cm
Dorsal Spines
1
Dorsal Rays
6
Anal Rays
13
Vertebrae
43

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Data Deficient
Assessment Date
2011

📊 Population Risk & Fisheries

Population Resilience
Very low
Minimum doubling time
Fishing Vulnerability
71.00/100
High vulnerability
Trophic Level
3.6
Predator
Body Shape
Elongated
Climate Zone
Tropical
Described By
Ng & Kottelat, 2000

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