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💧 Freshwater Least Concern 🐠 Aquarium 🌡️ Subtropical

Opsariichthys Evolans

Opsariichthys evolans Jordan & Evermann, 1902
Max Length
9 cm
Max Weight
-
Lifespan
-
Trophic Level
3.1
Depth
-
Climate
Subtropical
Resilience
High
Vulnerability
18.00/100
Typical Length
-
Depth Zone
-

📖 Overview

Opsariichthys Evolans (Opsariichthys evolans) is a ray-finned fish of the family Cyprinidae. It inhabits freshwater waters. This species can reach a maximum total length of 9 cm. With a trophic level of 3.1, 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
Opsariichthys evolans
Authority
Jordan & Evermann, 1902
Habitat
Freshwater
Climate
Subtropical
Body Shape
Fusiform / normal
IUCN Status
LC
Max Length
9 cm
Trophic Level
3.1
Resilience
High
Vulnerability
18.00/100
Salinity
0–0.5 ppt

🐟 Physical Description

Dorsal soft rays (total): 9; Anal soft rays: 12; Vertebrae: 40 - 41. Pectoral fin modally with 14 rays; pectoral fin extending far beyond origin of ventral fin; 16-17 scales around caudal peduncle; modally 8 scales above lateral line; and maxillary never extending to vertical of anterior margin of orbit .: fusiform / normal.

🌀 Behaviour

Behavioural data for Opsariichthys Evolans 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. Subtropical

🌿 Ecology

Zone Preferences
💧 Freshwater
Trophic Level
3.1±0.4

📐 Morphometrics

Length–Weight Relationship: W = 0.00851 × L3.09 (TL)
Max TL
9cm
Dorsal Rays
9
Anal Rays
12
Vertebrae
41

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2023

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
18.00/100
Low vulnerability
Trophic Level
3.1
Predator
Body Shape
Fusiform / normal
Climate Zone
Subtropical
Described By
Jordan & Evermann, 1902

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