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💧 Freshwater Extinct 🌡️ Subtropical

Catarina pupfish

Megupsilon aporus Miller & Walters, 1972
Max Length
4 cm
Max Weight
-
Lifespan
-
Trophic Level
2.7
Depth
-
Climate
Subtropical
Resilience
-
Vulnerability
10.00/100
Typical Length
-
Depth Zone
demersal

📖 Overview

An egg lying carnivorous fish which prefers rocky substrate near vegetation. Aquarium conditions: pH=7.3, H=12, 10°C water temperature . Not a seasonal killifish . A popular media fish.

Scientific Name
Megupsilon aporus
Authority
Miller & Walters, 1972
Habitat
Freshwater
Climate
Subtropical
Body Shape
Fusiform / normal
IUCN Status
EX
Max Length
4 cm
Trophic Level
2.7
Vulnerability
10.00/100
Migration
Non-migratory
Water Temp
18–22 °C
Salinity
0–0.5 ppt

🐟 Physical Description

Dorsal soft rays (total): 9 - 11; Anal soft rays: 9 - 11. : fusiform / normal.

🌀 Behaviour

Behavioural data for Catarina pupfish 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: 7.4 - ? ; dH range: 10.5 - ?; non-migratory . Subtropical; 18°C - 22°C ; 26°N - 25°N Central America: El Potosí, Nuevo Leon, Mexico.

🌿 Ecology

Zone Preferences
💧 Freshwater ⬇️ Benthic
Migration
Non-migratory
Trophic Level
2.7±0.2

📐 Morphometrics

Length–Weight Relationship: W = 0.0138 × L3.14 (TL)
Max TL
4cm
Dorsal Rays
10
Anal Rays
10

🌡️ Water Parameters & Tolerance

Temperature Range
18–22°C
Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Extinct
Assessment Date
2018

📊 Population Risk & Fisheries

Fishing Vulnerability
10.00/100
Low vulnerability
Trophic Level
2.7
Omnivore / Planktivore
Body Shape
Fusiform / normal
Climate Zone
Subtropical
Described By
Miller & Walters, 1972

🌐 Names & Taxonomy

Language Common Names
🇬🇧English Catarina pupfish
🌍CES halančíkovec katarinský
🇷🇺Russian Мегупсилон
🇪🇸Spanish Cachorrito Enano de Potosi

🗺️ 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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