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💧 Freshwater 🌡️ Tropical

Psilorhynchus Olliei

Psilorhynchus olliei Conway & Britz, 2015
Max Length
5.4 cm
Max Weight
-
Lifespan
-
Trophic Level
3
Depth
-
Climate
Tropical
Resilience
-
Vulnerability
10.00/100
Typical Length
-
Depth Zone
-

📖 Overview

Psilorhynchus Olliei (Psilorhynchus olliei) is a ray-finned fish of the family Psilorhynchidae. It inhabits freshwater waters. This species can reach a maximum total length of 5.4 cm. With a trophic level of 3, it is a low-level carnivore, feeding on invertebrates and small organisms.

Scientific Name
Psilorhynchus olliei
Authority
Conway & Britz, 2015
Habitat
Freshwater
Climate
Tropical
Body Shape
Elongated
Max Length
5.4 cm
Trophic Level
3
Vulnerability
10.00/100
Salinity
0–0.5 ppt

🐟 Physical Description

Dorsal soft rays (total): 13; Anal soft rays: 8; Vertebrae: 32 - 33. Psilorhynchus olliei belongs to the P. balitora species group and is distinguished from all other members by the following combination of characters: 5-6 round to squarish lateral blotches; 6-7 dorsal saddles, all but largest separated from lateral blotches; small dark brown blotches scattered irregularly across scales in L1, L+1 and L+2 scale rows in posterior half of body; obvious row of small dark brown blotches in L-1 row, bordering ventral margin of lateral blotches in posterior half of body; caudal fin with elongate black marking extending along ventral margin of lower lobe; dorsal fin with black stripe across center that is widest anteriorly; 31-32 lateral-line scales; 10 + 9 principal caudal-fin rays; v.9-10.i-ii pectoral-fin rays; 32-33 (16-17+16-17) total vertebrae; anteriormost branchiostegal ray present; parietal portion of temporal sensory canal with 3 openings; preopercular portion of preopercular-mandibular canal with 4 openings; ventral surface between paired fins without scales . : elongated.

🌀 Behaviour

Behavioural data for Psilorhynchus Olliei is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

🐣 Oviparous
Spawning Season
spring
Spawn Location
Substrate
Fertilization
External

🌍 Habitat & Distribution

Freshwater; benthopelagic. Tropical

🌿 Ecology

Zone Preferences
💧 Freshwater
Trophic Level
3±0.2

📐 Morphometrics

Length–Weight Relationship: W = 0.01122 × L3.04 (TL)
Max TL
5.4cm
Dorsal Rays
13
Anal Rays
8
Vertebrae
33

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

📊 Population Risk & Fisheries

Fishing Vulnerability
10.00/100
Low vulnerability
Trophic Level
3
Predator
Body Shape
Elongated
Climate Zone
Tropical
Described By
Conway & Britz, 2015

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