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💧 Freshwater Critically Endangered 🌡️ Tropical

Betta Cracens

Betta cracens Tan & Ng, 2005
Max Length
5.7 cm
Max Weight
-
Lifespan
-
Trophic Level
3.2
Depth
-
Climate
Tropical
Resilience
High
Vulnerability
10.00/100
Typical Length
-
Depth Zone
-

📖 Overview

Betta Cracens (Betta cracens), first described by Tan & Ng, 2005 is a small fish in the family Osphronemidae (order Anabantiformes). Adults typically reach 5.70 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 Critically Endangered.

Scientific Name
Betta cracens
Authority
Tan & Ng, 2005
Habitat
Freshwater
Climate
Tropical
Body Shape
Fusiform / normal
IUCN Status
CR
Max Length
5.7 cm
Trophic Level
3.2
Resilience
High
Vulnerability
10.00/100
Salinity
0–0.5 ppt

🐟 Physical Description

Dorsal spines (total): 0 - 1; Dorsal soft rays (total): 8 - 9; Anal spines: 1 - 2; Anal soft rays: 26 - 27; Vertebrae: 31 - 32. Body depth at dorsal-fin origin 21.2-24.2% SL; anal-fin rays 27-29 (mode); lateral scales 32-33 (mode 33); thin dark blue edge on anal fin in male and female; predorsal length 65.0-67.1% SL; and head length 30.8-31.7% SL .: fusiform / normal.

🌀 Behaviour

Behavioural data for Betta Cracens 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; pH range: 5.8 - ?. Tropical

🌿 Ecology

Zone Preferences
💧 Freshwater
Trophic Level
3.2±0.4

📐 Morphometrics

Length–Weight Relationship: W = 0.00977 × L2.97 (TL)
Max TL
5.7cm
Dorsal Spines
1
Dorsal Rays
9
Anal Spines
2
Anal Rays
27
Vertebrae
32

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Critically Endangered
Assessment Date
2019

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
10.00/100
Low vulnerability
Trophic Level
3.2
Predator
Body Shape
Fusiform / normal
Climate Zone
Tropical
Described By
Tan & Ng, 2005

🦠 Common Diseases

The following diseases are known to affect Betta Cracens.

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