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💧 Freshwater 🌡️ Tropical

Olyra Kolasibensis

Olyra kolasibensis Tudu, Chowdhury, Rath & Shangningam, 2025
Max Length
10.6 cm
Max Weight
-
Lifespan
-
Trophic Level
3.3
Depth
-
Climate
Tropical
Resilience
High
Vulnerability
22.00/100
Typical Length
-
Depth Zone
demersal

📖 Overview

Olyra Kolasibensis (Olyra kolasibensis) is a ray-finned fish of the family Olyridae. It inhabits freshwater waters in benthic environments. This species can reach a maximum total length of 10.6 cm. With a trophic level of 3.3, it is a low-level carnivore, feeding on invertebrates and small organisms.

Scientific Name
Olyra kolasibensis
Authority
Tudu, Chowdhury, Rath & Shangningam, 2025
Habitat
Freshwater
Climate
Tropical
Body Shape
Elongated
Max Length
10.6 cm
Trophic Level
3.3
Resilience
High
Vulnerability
22.00/100
Salinity
0–0.5 ppt

🐟 Physical Description

Dorsal soft rays (total): 6 - 7; Anal soft rays: 6 - 8. This species is distinguished from its congeners by the following set of characters: anal-fin rays xiii-xvi, 6-8; long adipose fin, its base length 24.1-28.8% SL, not confluent with caudal fin; small eye, its diameter 9-12% HL; interorbital distance 24-30% HL; head length 15.2-17.5% SL; body depth at vent 6.4-8% SL; maxillary barbel traversing pectoral fin; and caudal fin deeply forked, its upper lobe twice longer than lower .: elongated; Cross section: oval.

🌀 Behaviour

Behavioural data for Olyra Kolasibensis 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
3.3±0.1

📐 Morphometrics

Length–Weight Relationship: W = 0.00871 × L2.93 (TL)
Max TL
10.6cm
Dorsal Rays
7
Anal Rays
7

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
22.00/100
Low vulnerability
Trophic Level
3.3
Predator
Body Shape
Elongated
Climate Zone
Tropical
Described By
Tudu, Chowdhury, Rath & Shangningam, 2025

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