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💧 Freshwater Least Concern 🐠 Aquarium 🌡️ Tropical

Blue-lined Rasbora

Trigonopoma gracile Kottelat, 1991
Max Length
5.5 cm
Max Weight
-
Lifespan
-
Trophic Level
3.2
Depth
-
Climate
Tropical
Resilience
High
Vulnerability
13.00/100
Typical Length
-
Depth Zone
-

📖 Overview

Blue-lined Rasbora (Trigonopoma gracile), first described by Kottelat, 1991 is a small fish in the family Cyprinidae (order Cypriniformes). Adults typically reach 5.50 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.The species is kept in the aquarium hobby. Care requirements and behaviour align broadly with other Cyprinidae kept in the hobby.

Scientific Name
Trigonopoma gracile
Authority
Kottelat, 1991
Habitat
Freshwater
Climate
Tropical
Body Shape
Fusiform / normal
IUCN Status
LC
Max Length
5.5 cm
Trophic Level
3.2
Resilience
High
Vulnerability
13.00/100
Water Temp
22–24 °C
Salinity
0–0.5 ppt

🔬 Taxonomy

🐟 Physical Description

Differs from all of its congeners by the following combination of characters: lateral line incomplete to absent, perforating 0-6 scales; 29-32 scales along normal course of lateral line; a conspicuous black (bluish black in life) lateral stripe from tip of snout to extremity of median caudal rays; body slender, its depth 4.4-4.8 times in SL (4.0-5.1); caudal peduncle slender than all other Rasbora, its depth 2.3-2.8 times in its length (2.3-3.3); and long and pointed dorsal and anal fins .: fusiform / normal.

🌀 Behaviour

Behavioural data for Blue-lined 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; pH range: 6.5 - 7.0; dH range: 10 - ?. Tropical; 22°C - 24°C

🌿 Ecology

Zone Preferences
💧 Freshwater
Trophic Level
3.2±0.4

📐 Morphometrics

Length–Weight Relationship: W = 0.00891 × L3.02 (TL)
Max TL
5.5cm

🌡️ Water Parameters & Tolerance

Temperature Range
22–24°C
pH Range
6.5–7
Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2020

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
13.00/100
Low vulnerability
Trophic Level
3.2
Predator
Body Shape
Fusiform / normal
Climate Zone
Tropical
Described By
Kottelat, 1991

🌐 Names & Taxonomy

Language Common Names
🇬🇧English Blue-lined Rasbora
🇵🇹Portuguese Rasbora-de-linha-azul
🇷🇺Russian Чернополосая расбора
🌍THA ปลาซิวผอม

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 1 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

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