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💧 Freshwater Least Concern 🌡️ Tropical

Nash's barb

Osteochilichthys nashii Day, 1869
Max Length
18 cm
Max Weight
-
Lifespan
-
Trophic Level
3
Depth
-
Climate
Tropical
Resilience
High
Vulnerability
25.00/100
Typical Length
-
Depth Zone
-

📖 Overview

Nash's barb (Osteochilichthys nashii), first described by Day, 1869 is a medium-sized fish. Adults typically reach 18.00 cm in maximum length. It inhabits freshwater systems including rivers, streams, and lakes. It occurs in Tropical waters. It is broadly omnivorous, taking invertebrates, plant matter, and detritus. On the IUCN Red List, it is classified as Least Concern.

Scientific Name
Osteochilichthys nashii
Authority
Day, 1869
Habitat
Freshwater
Climate
Tropical
IUCN Status
LC
Max Length
18 cm
Trophic Level
3
Resilience
High
Vulnerability
25.00/100
Salinity
0–0.5 ppt

🔬 Taxonomy

Genus
Osteochilichthys
Osteochilichthys
Species
Nash's barb
Osteochilichthys nashii

🐟 Physical Description

This species is distinguished from its congeners by the following characters: body with depth at the dorsal fin origin 28.6- 29.9 % SL; snout covered with papillae; lips thin; lateral line scales 41; caudal peduncle long, its length 20.2- 21.1 % SL; the last undivided dorsal ray non - osseous, weak; Colouration: body and fins with a peculiar colour pattern where it is reddish brown along the back, silvery over the abdomen; a black band passes from the eye to the centre of the base of the caudal fin; fins whitish; anal fin with a dark band and a similar band along the middle of the third dorsal fin .Cross section: oval.

🌀 Behaviour

Behavioural data for Nash's barb 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 endemic to India.

🌿 Ecology

Zone Preferences
💧 Freshwater
Trophic Level
3±0.4

📐 Morphometrics

Length–Weight Relationship: W = 0.00955 × L3.02 (TL)
Max TL
18cm

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2010

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
25.00/100
Low vulnerability
Trophic Level
3
Predator
Climate Zone
Tropical
Described By
Day, 1869

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