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💧 Freshwater Least Concern 🐠 Aquarium 🌡️ Tropical

Narrow striped rasbora

Rasbora microcephalus Jerdon, 1849
Max Length
7.7 cm
Max Weight
-
Lifespan
-
Trophic Level
3.2
Depth
-
Climate
Tropical
Resilience
High
Vulnerability
19.00/100
Typical Length
-
Depth Zone
-

📖 Overview

Narrow striped rasbora (Rasbora microcephalus) is a ray-finned fish of the family Cyprinidae. It inhabits freshwater waters. This species can reach a maximum total length of 7.7 cm. With a trophic level of 3.2, it is a low-level carnivore, feeding on invertebrates and small organisms. It is assessed as Least Concern on the IUCN Red List.

Scientific Name
Rasbora microcephalus
Authority
Jerdon, 1849
Habitat
Freshwater
Climate
Tropical
Body Shape
Fusiform / normal
IUCN Status
LC
Max Length
7.7 cm
Trophic Level
3.2
Resilience
High
Vulnerability
19.00/100
Salinity
0–0.5 ppt

🐟 Physical Description

Vertebrae: 35. Rasbora microcephalus is distinguished from all congeners from India and Sri Lanka by the combination of the following characters: axial stripe posteriorly broad, anteriorly narrow, faint; mouth superior; symphysial knob absent; ½ 4-5/ 1/ 1 ½ scales in transverse line on body; 29-32 pored lateral line scales on body; 15-16 predorsal scales .: fusiform / normal.

🌀 Behaviour

Behavioural data for Narrow striped rasbora 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
3.2±0.4

📐 Morphometrics

Length–Weight Relationship: W = 0.00776 × L3.01 (TL)
Max TL
7.7cm
Vertebrae
35

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2019

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
19.00/100
Low vulnerability
Trophic Level
3.2
Predator
Body Shape
Fusiform / normal
Climate Zone
Tropical
Described By
Jerdon, 1849

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