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💧 Freshwater Vulnerable 🌡️ Tropical

Variable cory

Hoplisoma diphyes Axenrot & Kullander, 2003
Max Length
4.5 cm
Max Weight
-
Lifespan
-
Trophic Level
3
Depth
-
Climate
Tropical
Resilience
High
Vulnerability
10.00/100
Typical Length
-
Depth Zone
demersal

📖 Overview

Facultative air-breathing ; Usually occurs in areas with sandy bottom, bank vegetation entering water or with marginal aquatic plants, dark, clear or slightly turbid water and limited associated fauna . Mimicked by Otocinclus mimulus; . Mimicry is unusual because the two species occupy different microhabitats and it is hypothesized to operate with a primarily visual predator moving between the microhabitats, tentatively identified as the cichlid Crenicichla lepidota .

Scientific Name
Hoplisoma diphyes
Authority
Axenrot & Kullander, 2003
Habitat
Freshwater
Climate
Tropical
Body Shape
Fusiform / normal
IUCN Status
VU
Max Length
4.5 cm
Trophic Level
3
Resilience
High
Vulnerability
10.00/100
Salinity
0–0.5 ppt

🔬 Taxonomy

Genus
Hoplisoma
Hoplisoma
Species
Variable cory
Hoplisoma diphyes

🐟 Physical Description

Vertebrae: 18 - 19. Relatively low scute numbers (dorsal/ventral row, 23-24/20-21, pre-adipose scutes 2-4, usually 3), series of 4-6 distinct spots or a continuous midlateral band along the middle of the side instead of 2-3 large dark blotches; dorsal and pectoral fins not elongated in either sex; distinct stripes in dorsal and caudal fins .: fusiform / normal.

🌀 Behaviour

Behavioural data for Variable cory is currently being reviewed.

🦐 Diet

Diet information for Variable cory is currently being compiled.

🥚 Reproduction

Reproduction data for Variable cory is currently being compiled.

🌍 Habitat & Distribution

Freshwater; demersal. Tropical South America: restricted to tributaries of río Monday and río Acaray, ringht bank tributaries of río Paraná, Paraguay.

🌿 Ecology

Zone Preferences
💧 Freshwater ⬇️ Benthic
Trophic Level
3±0.4

📐 Morphometrics

Length–Weight Relationship: W = 0.0182 × L3.02 (TL)
Max TL
4.5cm
Vertebrae
19

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Vulnerable
Assessment Date
2021

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
10.00/100
Low vulnerability
Trophic Level
3
Predator
Body Shape
Fusiform / normal
Climate Zone
Tropical
Described By
Axenrot & Kullander, 2003

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