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💧 Freshwater Endangered 🌡️ Tropical

Parosphromenus Opallios

Parosphromenus opallios Kottelat & Ng, 2005
Max Length
2.5 cm
Max Weight
-
Lifespan
-
Trophic Level
3.1
Depth
-
Climate
Tropical
Resilience
High
Vulnerability
10.00/100
Typical Length
-
Depth Zone
-

📖 Overview

Parosphromenus Opallios (Parosphromenus opallios) is a ray-finned fish of the family Osphronemidae. It inhabits freshwater waters. This species can reach a maximum total length of 2.5 cm. With a trophic level of 3.1, it is a low-level carnivore, feeding on invertebrates and small organisms. It is assessed as Endangered on the IUCN Red List.

Scientific Name
Parosphromenus opallios
Authority
Kottelat & Ng, 2005
Habitat
Freshwater
Climate
Tropical
Body Shape
Elongated
IUCN Status
EN
Max Length
2.5 cm
Trophic Level
3.1
Resilience
High
Vulnerability
10.00/100
Salinity
0–0.5 ppt

🐟 Physical Description

Dorsal spines (total): 11 - 13; Dorsal soft rays (total): 6 - 8; Anal spines: 11 - 12; Anal soft rays: 10 - 11. Dorsal fin with 11-13 spines. Anal fin with 11-12 spines and 10-11 segmented rays. In live male, dorsal, anal and caudal fins with a narrow greenish-bluish margin and a black subdistal band bordered proximally by a blue iridescent band, very narrow in caudal, wider (especially anteriorly) in anal and dorsal. Proximal part of dorsal and anal black along body, grading into red distally, usually forming a conspicuous black blotch at posterior end of dorsal base. Proximal part of caudal fin deep black, grading into bright red patch. Pelvic fin and filament blue .: elongated.

🌀 Behaviour

Behavioural data for Parosphromenus Opallios is currently being reviewed.

🦐 Diet

Diet information for Parosphromenus Opallios is currently being compiled.

🥚 Reproduction

Reproduction data for Parosphromenus Opallios is currently being compiled.

🌍 Habitat & Distribution

Freshwater; benthopelagic. Tropical

🌿 Ecology

Zone Preferences
💧 Freshwater
Trophic Level
3.1±0.4

📐 Morphometrics

Length–Weight Relationship: W = 0.00389 × L3.12 (TL)
Max TL
2.5cm
Dorsal Spines
12
Dorsal Rays
7
Anal Spines
12
Anal Rays
11

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Endangered
Assessment Date
2019

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
10.00/100
Low vulnerability
Trophic Level
3.1
Predator
Body Shape
Elongated
Climate Zone
Tropical
Described By
Kottelat & Ng, 2005

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