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💧 Freshwater Data Deficient 🌡️ Tropical

Akysis Fontaneus

Akysis fontaneus Ng, 2009
Max Length
2.4 cm
Max Weight
-
Lifespan
-
Trophic Level
3.2
Depth
0–2 m
Climate
Tropical
Resilience
-
Vulnerability
10.00/100
Typical Length
-
Depth Zone
-

📖 Overview

Akysis Fontaneus (Akysis fontaneus), first described by Ng, 2009 is a tiny fish in the family Akysidae (order Siluriformes). Adults typically reach 2.40 cm in maximum length. It inhabits freshwater systems including rivers, streams, and lakes. Recorded depth range: 0 to 2 metres. It occurs in Tropical waters. It is broadly omnivorous, taking invertebrates, plant matter, and detritus. On the IUCN Red List, it is classified as Data Deficient.

Scientific Name
Akysis fontaneus
Authority
Ng, 2009
Habitat
Freshwater
Climate
Tropical
Body Shape
Elongated
IUCN Status
DD
Max Length
2.4 cm
Depth Range
0–2 m
Trophic Level
3.2
Vulnerability
10.00/100
Salinity
0–0.5 ppt

🐟 Physical Description

Dorsal spines (total): 1; Dorsal soft rays (total): 5; Anal spines: 3; Anal soft rays: 7; Vertebrae: 33. Akysis fontaneus is distinguished from congeners by a combination of the following characters: weakly emarginate caudal fin, convex dorsal surface of neurocranium making predorsal profile appear steeply sloping, presence of 4 large serrations on posterior edge of pectoral spine that are more than half width of spine, predorsal length 34.5% SL, pectoral-fin length 21.7% SL (not reaching pelvic-fin origin), length of adipose-fin base 18.7% SL and interorbital distance 42.3% HL .: elongated; Cross section: compressed.

🌀 Behaviour

Behavioural data for Akysis Fontaneus 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; pH range: 6.8 - ?; depth range 0 - 2 m . Tropical; 2°S - 3°S, 102°E - 103°E central Sumatra (Ref.

🌿 Ecology

Zone Preferences
💧 Freshwater
Trophic Level
3.2±0.5

📐 Morphometrics

Length–Weight Relationship: W = 0.00389 × L3.12 (TL)
Max TL
2.4cm
Dorsal Spines
1
Dorsal Rays
5
Anal Spines
3
Anal Rays
7
Vertebrae
33

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Data Deficient
Assessment Date
2018

📊 Population Risk & Fisheries

Fishing Vulnerability
10.00/100
Low vulnerability
Trophic Level
3.2
Predator
Body Shape
Elongated
Climate Zone
Tropical
Described By
Ng, 2009

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