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💧 Freshwater 🌡️ Tropical

Sewellia Pudens

Sewellia pudens Kottelat, 2025
Max Length
4.9 cm
Max Weight
-
Lifespan
-
Trophic Level
3.5
Depth
-
Climate
Tropical
Resilience
-
Vulnerability
10.00/100
Typical Length
-
Depth Zone
demersal

📖 Overview

Sewellia Pudens (Sewellia pudens), first described by Kottelat, 2025 is a tiny fish in the family Balitoridae (order Cypriniformes). Adults typically reach 4.90 cm in maximum length. It inhabits freshwater systems including rivers, streams, and lakes. It occurs in Tropical waters. It feeds on a mix of small fish and invertebrates as a mid-level predator.

Scientific Name
Sewellia pudens
Authority
Kottelat, 2025
Habitat
Freshwater
Climate
Tropical
Body Shape
Elongated
Max Length
4.9 cm
Trophic Level
3.5
Vulnerability
10.00/100
Salinity
0–0.5 ppt

🐟 Physical Description

Dorsal soft rays (total): 10; Anal soft rays: 6. This species is distinguished from its congeners by the following set of characters: poorly developed patterning of the body and fins; presence of black pigments in a vague midlateral stripe and 3-8 small saddles on the back, especially on caudal peduncle; presence of irregular markings on the body of some specimens, but not forming a clear pattern; absence of colour marks on most specimens, except for thin black lining along rays in the dorsal, anal and caudal fins, and, rarely, 1 or 2 faint blotches along lower edge of the caudal fin; absence of black patterning on pectoral and pelvic fins; conspicuous marking on body and paired fins (some large specimens may be almost completely dark brown) and the dorsal and caudal fins have several rows of conspicuous black dots; longitudinal groove on the snout between patches of large tubercles in males; absence of dorsal extensions or ridges along the dorsal side of the pectoral-fin rays; the pelvic fin not reaching the anal fin; and the anal fin not reaching the base of the caudal fin .: elongated; Cross section: oval.

🌀 Behaviour

Behavioural data for Sewellia Pudens is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

🐣 Oviparous
Spawning Season
spring
Spawn Location
Substrate
Fertilization
External

🌍 Habitat & Distribution

Freshwater; demersal. Tropical

🌿 Ecology

Zone Preferences
💧 Freshwater ⬇️ Benthic
Trophic Level
3.5±0.4

📐 Morphometrics

Length–Weight Relationship: W = 0.00646 × L3.11 (TL)
Max TL
4.9cm
Dorsal Rays
10
Anal Rays
6

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

📊 Population Risk & Fisheries

Fishing Vulnerability
10.00/100
Low vulnerability
Trophic Level
3.5
Predator
Body Shape
Elongated
Climate Zone
Tropical
Described By
Kottelat, 2025

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