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💧 Freshwater Least Concern 🌡️ Tropical

Butterfish

Siluranodon auritus Hilaire, 1809
Max Length
14 cm
Max Weight
-
Lifespan
-
Trophic Level
2.9
Depth
-
Climate
Tropical
Resilience
High
Vulnerability
25.00/100
Typical Length
-
Depth Zone
demersal

📖 Overview

Pelagic, occurs large and moderate lakes and rivers . In the Sudd, they occur beneath fringing Eichornia . Microphagous, feeding mainly on algae and occasionally rotifers, planktonic and benthic crustaceans, immature insects and mud/debris . Probably reproduces during the floods, migrating from lakes to rivers; howver in Lake Kainji fish were reported to migrate from the river to the Lake to spawn . Oviparous, eggs are unguarded . Max. reported total length 175 mm . Might locally represent an important species for fisheries since it is sometimes extremely abundant, but this may be negated by its small size .

Scientific Name
Siluranodon auritus
Authority
Hilaire, 1809
Habitat
Freshwater
Climate
Tropical
Body Shape
Elongated
IUCN Status
LC
Max Length
14 cm
Trophic Level
2.9
Resilience
High
Vulnerability
25.00/100
Migration
Potamodromous
Salinity
0–0.5 ppt

🔬 Taxonomy

🐟 Physical Description

Dorsal spines (total): 0; Dorsal soft rays (total): 5; Anal spines: 0; Anal soft rays: 67 - 87. Diagnosis: 67-87 anal-fin rays; 49-60 thin and flexible gill rakers on lower limb of first gill arch; 4 pairs of well developed barbels; small, spineless dorsal fin with 4-5 branched rays; jaws and palatine bones entirely without teeth . : elongated.

🌀 Behaviour

Behavioural data for Butterfish is currently being reviewed.

🦐 Diet

Diet information for Butterfish is currently being compiled.

🥚 Reproduction

Distinct pairing .

🌍 Habitat & Distribution

Freshwater; demersal; potamodromous . Tropical; 35°N - 5°N

🌿 Ecology

Zone Preferences
💧 Freshwater ⬇️ Benthic
Migration
Potamodromous
Trophic Level
2.9±0.34

📐 Morphometrics

Length–Weight Relationship: W = 0.00617 × L3.02 (TL)
Max TL
14cm
Dorsal Rays
5
Anal Rays
77

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2019

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
25.00/100
Low vulnerability
Trophic Level
2.9
Omnivore / Planktivore
Body Shape
Elongated
Climate Zone
Tropical
Described By
Hilaire, 1809

🌐 Names & Taxonomy

Language Common Names
🇬🇧English Butterfish
🇸🇦Arabic Shelbah Wednah Asslie · Shilba Areanna
🌍CES sumčík zlatý
🇷🇺Russian Длиннопёрый шильбовый сом

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 28 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

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