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💧 Freshwater Endangered 🌡️ Tropical

Gray corydoras

Hoplisoma griseum Holly, 1940
Max Length
4.2 cm
Max Weight
-
Lifespan
-
Trophic Level
3
Depth
-
Climate
Tropical
Resilience
High
Vulnerability
10.00/100
Typical Length
-
Depth Zone
demersal

📖 Overview

Gray corydoras (Hoplisoma griseum), first described by Holly, 1940 is a tiny fish. Adults typically reach 4.20 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. On the IUCN Red List, it is classified as Endangered.

Scientific Name
Hoplisoma griseum
Authority
Holly, 1940
Habitat
Freshwater
Climate
Tropical
IUCN Status
EN
Max Length
4.2 cm
Trophic Level
3
Resilience
High
Vulnerability
10.00/100
Water Temp
22–26 °C
Salinity
0–0.5 ppt

🔬 Taxonomy

Genus
Hoplisoma
Hoplisoma
Species
Gray corydoras
Hoplisoma griseum

🐟 Physical Description

Physical description for Gray corydoras is currently being compiled.

🌀 Behaviour

Behavioural data for Gray corydoras is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

Fecundity
2–4eggs

The female holds 2-4 eggs between her pelvic fins, where the male fertilizes them for about 30 seconds. Only then the female swims to a suitable spot, where she attaches the very sticky eggs. The pair repeats this process until about 100 eggs have been fertilized and attached .

🌍 Habitat & Distribution

Freshwater; demersal; pH range: 6.0 - 8.0; dH range: 2 - 25. Tropical; 22°C - 26°C South America: Amazon River basin.

🌿 Ecology

Zone Preferences
💧 Freshwater ⬇️ Benthic
Trophic Level
3±0.4

📐 Morphometrics

Length–Weight Relationship: W = 0.00741 × L3.14 (TL)
Max TL
4.2cm

🌡️ Water Parameters & Tolerance

Temperature Range
22–26°C
pH Range
6–8
Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Endangered
Assessment Date
2020

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
10.00/100
Low vulnerability
Trophic Level
3
Predator
Climate Zone
Tropical
Described By
Holly, 1940

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