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💧 Freshwater Least Concern 🐠 Aquarium 🌡️ Tropical

Betta Ocellata

Betta ocellata de Beaufort, 1933
Max Length
8 cm
Max Weight
-
Lifespan
-
Trophic Level
3.3
Depth
-
Climate
Tropical
Resilience
High
Vulnerability
11.00/100
Typical Length
-
Depth Zone
-

📖 Overview

Facultative air-breathing ; Inhabit more slow flowing areas of the headwater habitats . Found usually in ravines and isolated elevated pools. An adult and several juveniles are usually encountered in submerged leaf litter. Adults may take cover under floating leaves and are excellent jumpers, which may explain their presence in isolated elevated pools . Feed mainly on terrestrial insects and occasionally on aquatic invertebrates .

Scientific Name
Betta ocellata
Authority
de Beaufort, 1933
Habitat
Freshwater
Climate
Tropical
Body Shape
Fusiform / normal
IUCN Status
LC
Max Length
8 cm
Trophic Level
3.3
Resilience
High
Vulnerability
11.00/100
Salinity
0–0.5 ppt

🐟 Physical Description

Dorsal spines (total): 0 - 1; Dorsal soft rays (total): 7 - 8; Anal spines: 1 - 2; Anal soft rays: 28 - 30; Vertebrae: 33 - 34. Differs from other members of the Betta unimaculata species group by the following combination of characters: distinct black spot near caudal peduncle; body wormish; opercle blue; uniform caudal fin coloration; vertebrae 33-34 (mode 33); anal-fin rays 30-31 (mode 30); dorsal-fin rays 8; pectoral fin rays 12-13 (mode 13); subdorsal scales 5-5 1/2 (mode 5 1/2); lateral scales 32-34 (mode 33); predorsal scales 24; predorsal length 68.8-71.9% SL; head length 31.4-33.3% SL; length of anal-fin base 52.2-54.5% SL; length of dorsal-fin base 10.5-11.3% SL; lower jaw length 27.3-33.1% HL .: fusiform / normal.

🌀 Behaviour

Behavioural data for Betta Ocellata is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

🐣 Oviparous 🪺 Nest Builder
Spawning Season
spring
Spawn Location
Nest
Fertilization
External

🌍 Habitat & Distribution

Freshwater; benthopelagic. Tropical East Kalimantan.

🌿 Ecology

Zone Preferences
💧 Freshwater
Trophic Level
3.3±0.4
Food Items

terrestrial insects and occasionally on aquatic invertebrates (Ref

📐 Morphometrics

Length–Weight Relationship: W = 0.00977 × L2.97 (TL)
Max TL
8cm
Dorsal Spines
1
Dorsal Rays
8
Anal Spines
2
Anal Rays
29
Vertebrae
34

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2018

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
11.00/100
Low vulnerability
Trophic Level
3.3
Predator
Body Shape
Fusiform / normal
Climate Zone
Tropical
Described By
de Beaufort, 1933

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