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💧 Freshwater Least Concern 🌡️ Tropical

Whale Catfish

Denticetopsis praecox Ferraris & Brown, 1991
Max Length
5.3 cm
Max Weight
-
Lifespan
-
Trophic Level
3.4
Depth
-
Climate
Tropical
Resilience
-
Vulnerability
10.00/100
Typical Length
-
Depth Zone
demersal

📖 Overview

Whale Catfish (Denticetopsis praecox), first described by Ferraris & Brown, 1991 is a small fish in the family Cetopsidae (order Siluriformes). Adults typically reach 5.30 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. On the IUCN Red List, it is classified as Least Concern.

Scientific Name
Denticetopsis praecox
Authority
Ferraris & Brown, 1991
Habitat
Freshwater
Climate
Tropical
IUCN Status
LC
Max Length
5.3 cm
Trophic Level
3.4
Vulnerability
10.00/100
Salinity
0–0.5 ppt

🔬 Taxonomy

🐟 Physical Description

Dorsal spines (total): 1; Dorsal soft rays (total): 6; Anal soft rays: 25 - 30; Vertebrae: 39 - 40. Readily distinguished from other members of the genus by its color pattern consisting of a dark brown dorsum, speckled to dark sides, light venter, pale fins and a large dark spot on the basal half of the dorsal fin. Among the smallest species in the family, maturing between 30-40 mm SL.

🌀 Behaviour

Behavioural data for Whale Catfish 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; pH range: 4.3 - 5.0. Tropical South America: upper Negro River basin.

🌿 Ecology

Zone Preferences
💧 Freshwater ⬇️ Benthic
Trophic Level
3.4±0.4

📐 Morphometrics

Length–Weight Relationship: W = 0.0055 × L3.13 (TL)
Max TL
5.3cm
Dorsal Spines
1
Dorsal Rays
6
Anal Rays
28
Vertebrae
40

🌡️ Water Parameters & Tolerance

pH Range
4.3–5
Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2020

📊 Population Risk & Fisheries

Fishing Vulnerability
10.00/100
Low vulnerability
Trophic Level
3.4
Predator
Climate Zone
Tropical
Described By
Ferraris & Brown, 1991

🌐 Names & Taxonomy

Language Common Names
🇬🇧English Whale Catfish
🏳️Catalan 始齿鲸鲇
🌍CES velrybovec neblinský

Scientific Synonyms

Scientific Name Author Year Status
Pseudocetopsis praecox Ferraris & Brown 1991 Synonym

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 2 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

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