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💧 Freshwater Least Concern 🌡️ Tropical

Clarias Hilli

Clarias hilli Fowler, 1936
Max Length
19.6 cm
Max Weight
-
Lifespan
-
Trophic Level
3.4
Depth
-
Climate
Tropical
Resilience
High
Vulnerability
19.00/100
Typical Length
-
Depth Zone
demersal

📖 Overview

Clarias Hilli (Clarias hilli), first described by Fowler, 1936 is a medium-sized fish in the family Clariidae (order Siluriformes). Adults typically reach 19.60 cm in maximum length. It inhabits freshwater systems including rivers, streams, and lakes. It occurs in Tropical waters. It feeds on a mix of small fish and invertebrates as a mid-level predator. On the IUCN Red List, it is classified as Least Concern.

Scientific Name
Clarias hilli
Authority
Fowler, 1936
Habitat
Freshwater
Climate
Tropical
Body Shape
Elongated
IUCN Status
LC
Max Length
19.6 cm
Trophic Level
3.4
Resilience
High
Vulnerability
19.00/100
Salinity
0–0.5 ppt

🔬 Taxonomy

🐟 Physical Description

Dorsal spines (total): 0; Dorsal soft rays (total): 76 - 87; Anal soft rays: 63 - 69; Vertebrae: 60 - 64. Head rectangular to oval-shaped dorsally; snout broadly rounded; eyes laterally placed. Frontal fontanelle long and narrow; occipital fontanelle small and oval-shaped. Supraorbital and `dermosphenotic' bones separate but not reduced. Tooth plates broad. Pectoral spine slightly curved; outer side with strong, downward serrations. Gill rakers short and squat, although distantly set. Suprabranchial organ rather primitive. Openings of the secondary sensory canals display a regular pattern.: elongated; Cross section: circular.

🌀 Behaviour

Behavioural data for Clarias Hilli 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
3.4±0.5

📐 Morphometrics

Length–Weight Relationship: W = 0.00776 × L2.96 (TL)
Max TL
19.6cm
Dorsal Rays
82
Anal Rays
66
Vertebrae
62

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2021

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
19.00/100
Low vulnerability
Trophic Level
3.4
Predator
Body Shape
Elongated
Climate Zone
Tropical
Described By
Fowler, 1936

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