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💧 Freshwater Endangered 🌡️ Tropical

Pseudomystus Heokhuii

Pseudomystus heokhuii Lim & Ng, 2008
Max Length
6.4 cm
Max Weight
-
Lifespan
-
Trophic Level
3.2
Depth
-
Climate
Tropical
Resilience
High
Vulnerability
13.00/100
Typical Length
-
Depth Zone
demersal

📖 Overview

Pseudomystus Heokhuii (Pseudomystus heokhuii) is a ray-finned fish of the family Bagridae. It inhabits freshwater waters in benthic environments. This species can reach a maximum total length of 6.4 cm. With a trophic level of 3.2, it is a low-level carnivore, feeding on invertebrates and small organisms. It is assessed as Endangered on the IUCN Red List.

Scientific Name
Pseudomystus heokhuii
Authority
Lim & Ng, 2008
Habitat
Freshwater
Climate
Tropical
Body Shape
Elongated
IUCN Status
EN
Max Length
6.4 cm
Trophic Level
3.2
Resilience
High
Vulnerability
13.00/100
Salinity
0–0.5 ppt

🐟 Physical Description

Dorsal spines (total): 1; Dorsal soft rays (total): 7; Anal soft rays: 12 - 14; Vertebrae: 35 - 36. Differs from its congeners in possessing a color pattern consisting of a pale midlateral stripe and two pale oblique bands on the sides of the body; no other congener exhibits a distinct pale midlateral stripe. Can be differentiated further from all congeners except Pseudomystus breviceps, Pseudomystus bomboides, Pseudomystus flavipinnis, Pseudomystus myersi, Pseudomystus siamensis, Pseudomystus robustus, Pseudomystus sobrinus and Pseudomystus stenomus in having a deeper body (17.8-21.0% SL vs. 9.0-17.0). Differs from Pseudomystus leiacanthus in having two (vs. one) dark narrow irregular bars on the caudal fin, longer pectoral spine (19.3-22.4% SL vs. 15.2-18.6), longer caudal fin (33.5-40.0% SL vs. 25.7-31.9) with pointed (vs. rounded) lobes, longer nasal and maxillary barbels (63.1-81.1% HL vs. 31.3-51.5 and 86.2-125.3% HL vs. 70.9-91.3 respectively; nasal barbel reaching to dorsal insertion of opercular flap vs. to just beyond posterior orbital margin and maxillary barbel reaching just beyond base of last pectoral-fin ray vs. to base of pectoral spine), a straight ( vs. crescentic) premaxillary tooth patch, a more sharply tapering snout when viewed dorsally and an even (vs. slightly convex) predorsal profile . : elongated.

🌀 Behaviour

Behavioural data for Pseudomystus Heokhuii is currently being reviewed.

🦐 Diet

Diet information for Pseudomystus Heokhuii is currently being compiled.

🥚 Reproduction

Reproduction data for Pseudomystus Heokhuii is currently being compiled.

🌍 Habitat & Distribution

Freshwater; demersal; pH range: 3.5 - 4.5. Tropical

🌿 Ecology

Zone Preferences
💧 Freshwater ⬇️ Benthic
Trophic Level
3.2±0.4

📐 Morphometrics

Length–Weight Relationship: W = 0.00871 × L2.93 (TL)
Max TL
6.4cm
Dorsal Spines
1
Dorsal Rays
7
Anal Rays
13
Vertebrae
36

🌡️ Water Parameters & Tolerance

pH Range
3.5–4.5
Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Endangered
Assessment Date
2019

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
13.00/100
Low vulnerability
Trophic Level
3.2
Predator
Body Shape
Elongated
Climate Zone
Tropical
Described By
Lim & Ng, 2008

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