Heterobranchus Isopterus
📖 Overview
Heterobranchus Isopterus (Heterobranchus isopterus), first described by Bleeker, 1863 is a very large fish in the family Clariidae (order Siluriformes). Adults typically reach 123.00 cm in maximum length and up to 1.200 kg. 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.
🔬 Taxonomy
🐟 Physical Description
Dorsal spines (total): 0; Dorsal soft rays (total): 26 - 35; Anal soft rays: 40 - 51; Vertebrae: 53 - 60. Diagnosis: length of rayed dorsal fin 27-36% standard length; 26-35 dorsal-fin rays; length of adipose fin 24-34% of standard length . Strong, downward-pointed serrations on the anterior part of the pectoral spine . Width of vomerine tooth plate 20.8-25.0%, width of premaxillary tooth plate 25.2-30.9% of head length; adipose fin uniformly coloured . Eyes superolateral; frontal fontanelle long and narrow; occipital fontanelle oval-shaped; head completely covered with bones; suprabranchial organ well developed; tooth plates relatively narrow; openings of secondary sensory canals regularly placed . Coloration: preserved specimens: grey, greyish-brown to dark brown on back and sides, pale brown on belly; some individuals show a marbled colour pattern; caudal and adipose fins uniformly coloured .: elongated; Cross section: circular.
🌀 Behaviour
Behavioural data for Heterobranchus Isopterus is currently being reviewed.
🦐 Diet
🥚 Reproduction
🌍 Habitat & Distribution
Freshwater; demersal; potamodromous . Tropical; 22°C - 28°C ; 17°N - 4°N
🌿 Ecology
📐 Morphometrics
🌡️ Water Parameters & Tolerance
🛡️ Conservation Assessment
📊 Population Risk & Fisheries
🌐 Names & Taxonomy
| Language | Common Names |
|---|---|
| 🌍CES | keříčkovec stejnoploutvý |
| 🌍IBO | Azu isii |
| 🇨🇳Chinese | 等鰭異鰓鯰 |
Scientific Synonyms
| Scientific Name | Author | Year | Status |
|---|---|---|---|
| Heterobranchus macronema | Bleeker | 1863 | Synonym |
🔍 Similar Species
🗺️ Global Occurrence Map
Occurrence records from the Global Biodiversity Information Facility (GBIF) - 113 records indexed .
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