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💧 Freshwater Critically Endangered 🌡️ Tropical

Club-barbel sheatfish

Ceratoglanis pachynema Ng, 1999
Max Length
28 cm
Max Weight
-
Lifespan
-
Trophic Level
3.9
Depth
-
Climate
Tropical
Resilience
Medium
Vulnerability
42.00/100
Typical Length
-
Depth Zone
demersal

📖 Overview

Club-barbel sheatfish (Ceratoglanis pachynema) is a ray-finned fish. It inhabits freshwater waters in benthic environments. This species can reach a maximum total length of 28 cm. With a trophic level of 3.9, it is a mid-level predator. It is assessed as Critically Endangered on the IUCN Red List.

Scientific Name
Ceratoglanis pachynema
Authority
Ng, 1999
Habitat
Freshwater
Climate
Tropical
Body Shape
Elongated
IUCN Status
CR
Max Length
28 cm
Trophic Level
3.9
Resilience
Medium
Vulnerability
42.00/100
Salinity
0–0.5 ppt

🔬 Taxonomy

Genus
Ceratoglanis
Ceratoglanis
Species
Club-barbel sheatfish
Ceratoglanis pachynema

🐟 Physical Description

Dorsal spines (total): 0; Dorsal soft rays (total): 0; Anal soft rays: 90 - 101; Vertebrae: 63 - 64. Snout with a gently sloping ventral profile (ventral angle of snout 40°-42°), relatively fewer anal-fin rays (90-101), and larger eyes (eye diameter 13.0-16.4% HL) set closer together (interorbital distance 33.7-36.6% HL). Mature males have membranous extensions on both the anterior and posterior edges of the maxillary barbel. Pectoral spine and articulated segments sexually dimorphic in mature individuals. Males with spine broad and somewhat flattened dorsoventrally, with 10 distinct posterior serrate, increasing in size distally; proximal articulated segments with 17 well-developed posterior serrae; distal-most segments have smaller serrae. Females or juveniles with spine slender and without serrae; proximal articulated segments with 6 minute posterior serrae; distal segments with 5 minute serrae . Absence of dorsal fin; short stiff hooked maxillary barbels; posterior nostril above front margin eye .: elongated.

🌀 Behaviour

Behavioural data for Club-barbel sheatfish is currently being reviewed.

🦐 Diet

Diet information for Club-barbel sheatfish is currently being compiled.

🥚 Reproduction

Reproduction data for Club-barbel sheatfish is currently being compiled.

🌍 Habitat & Distribution

Freshwater; demersal. Tropical

🌿 Ecology

Zone Preferences
💧 Freshwater ⬇️ Benthic
Trophic Level
3.9±0.7

📐 Morphometrics

Length–Weight Relationship: W = 0.00562 × L3 (TL)
Max TL
28cm
Anal Rays
96
Vertebrae
64

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Critically Endangered
Assessment Date
2011

📊 Population Risk & Fisheries

Population Resilience
Medium
Minimum doubling time
Fishing Vulnerability
42.00/100
Moderate vulnerability
Trophic Level
3.9
Predator
Body Shape
Elongated
Climate Zone
Tropical
Described By
Ng, 1999

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