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💧 Freshwater Least Concern 🐠 Aquarium 🌡️ Tropical

Wokam rainbowfish

Melanotaenia wokamensis Allen, Hadiaty, Unmack & Erdmann, 2015
Max Length
7.6 cm
Max Weight
-
Lifespan
-
Trophic Level
2.9
Depth
-
Climate
Tropical
Resilience
Medium
Vulnerability
33.00/100
Typical Length
-
Depth Zone
-

📖 Overview

Inhabits streams that are typically narrow (about 3-5 m average width) limestone channels flowing through rainforest. Most common in deeper pools up to 1.5-2.0 m depth below the numerous cascades and small waterfalls .

Scientific Name
Melanotaenia wokamensis
Authority
Allen, Hadiaty, Unmack & Erdmann, 2015
Habitat
Freshwater
Climate
Tropical
Body Shape
Fusiform / normal
IUCN Status
LC
Max Length
7.6 cm
Trophic Level
2.9
Resilience
Medium
Vulnerability
33.00/100
Salinity
0–0.5 ppt

🐟 Physical Description

Dorsal spines (total): 4 - 6; Dorsal soft rays (total): 11 - 14; Anal spines: 1; Anal soft rays: 18 - 22. Melanotaenia wokamensis is distinguished by the following combination of characters: IV-VI-I,11-14 dorsal-fin rays; I,18-22 anal-fin rays; 12-14 (usually 13) pectoral-fin rays; 33-35 (rarely 35) scales on lateral line, 14-16 predorsal scales; 11-17 cheek scales; 15-17 total gill rakers on first arch; greatest body depth of adult male 34.4 % SL; color in life generally light blue on back with metallic reflections; dark blue midlateral stripe (1-2 scales wide), bordered with bold, relatively broad reddish to orange stripes; ventral portion of body greyish-white except bold dark-blue margins on scales above anal fin and large, bright blue patch just behind and below pectoral-fin base; second dorsal and anal fins bluish with broad, reddish outer margin; caudal fin semitranslucent reddish .: fusiform / normal.

🌀 Behaviour

Behavioural data for Wokam rainbowfish 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
2.9±0.4

📐 Morphometrics

Length–Weight Relationship: W = 0.01122 × L3.04 (TL)
Max TL
7.6cm
Dorsal Spines
5
Dorsal Rays
13
Anal Spines
1
Anal Rays
20

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2019

📊 Population Risk & Fisheries

Population Resilience
Medium
Minimum doubling time
Fishing Vulnerability
33.00/100
Low vulnerability
Trophic Level
2.9
Omnivore / Planktivore
Body Shape
Fusiform / normal
Climate Zone
Tropical
Described By
Allen, Hadiaty, Unmack & Erdmann, 2015

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