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💧 Freshwater 🌡️ Tropical

Hoplisoma Tenebrosum

Hoplisoma tenebrosum Tencatt, Ohara, Carvalho, Grant & Britto, 2025
Max Length
5.5 cm
Max Weight
-
Lifespan
-
Trophic Level
3
Depth
-
Climate
Tropical
Resilience
High
Vulnerability
10.00/100
Typical Length
-
Depth Zone
demersal

📖 Overview

Hoplisoma Tenebrosum (Hoplisoma tenebrosum), first described by Tencatt, Ohara, Carvalho, Grant & Britto, 2025 is a small fish. Adults typically reach 5.50 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.

Scientific Name
Hoplisoma tenebrosum
Authority
Tencatt, Ohara, Carvalho, Grant & Britto, 2025
Habitat
Freshwater
Climate
Tropical
Body Shape
Short and / or deep
Max Length
5.5 cm
Trophic Level
3
Resilience
High
Vulnerability
10.00/100
Salinity
0–0.5 ppt

🔬 Taxonomy

Genus
Hoplisoma
Hoplisoma
Species
Hoplisoma Tenebrosum
Hoplisoma tenebrosum

🐟 Physical Description

Dorsal spines (total): 2; Dorsal soft rays (total): 7 - 9; Anal soft rays: 5 - 6. This species is distinguished by the following set of characters: ventral surface of trunk with small- to relatively large-sized coalescent platelets, forming a typical mosaic-like pattern; small, whitish to brownish yellow or pale yellow/beige blotches on the predorsal portion of body; two or three longitudinal dark brown or black stripes on flanks; fewer pale blotches on the body; large, smoothly arched dark brown or black patch present, extending from the anterior portion of parieto-supraoccipital towards the region of interopercle, transversally crossing the orbit and forming a typical mask-like blotch; mosaic-like pattern of plates entirely or almost entirely covering the ventral surface of trunk .: short and / or deep; Cross section: flattened.

🌀 Behaviour

Behavioural data for Hoplisoma Tenebrosum 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 South America: Brazil.

🌿 Ecology

Zone Preferences
💧 Freshwater ⬇️ Benthic
Trophic Level
3±0.4

📐 Morphometrics

Length–Weight Relationship: W = 0.02455 × L3 (TL)
Max TL
5.5cm
Dorsal Spines
2
Dorsal Rays
8
Anal Rays
6

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
10.00/100
Low vulnerability
Trophic Level
3
Predator
Body Shape
Short and / or deep
Climate Zone
Tropical
Described By
Tencatt, Ohara, Carvalho, Grant & Britto, 2025

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