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💧 Freshwater Endangered 🌡️ Tropical

Fourspotted toothcarp

Phallichthys quadripunctatus Bussing, 1979
Max Length
3.5 cm
Max Weight
-
Lifespan
-
Trophic Level
2
Depth
-
Climate
Tropical
Resilience
High
Vulnerability
20.00/100
Typical Length
-
Depth Zone
pelagic

📖 Overview

Collected from two creeks with slow current and from a small stagnant puddle at 40 m elevation; at temperatures between 26-34°C. Swims in small aggregations among vegetation or in shallow waters. Feeds on diatoms, desmids and detritus . Observed to occur in 10 to 50 cm deep .

Scientific Name
Phallichthys quadripunctatus
Authority
Bussing, 1979
Habitat
Freshwater
Climate
Tropical
Body Shape
Elongated
IUCN Status
EN
Max Length
3.5 cm
Trophic Level
2
Resilience
High
Vulnerability
20.00/100
Water Temp
20–40 °C
Salinity
0–0.5 ppt

🐟 Physical Description

Body robust and of moderate depth. Males with long gonopodium, but not reaching base of tail. Each side with 4 (rarely 3 or 5) round or oval black blotches the size of the pupil .: elongated.

🌀 Behaviour

Behavioural data for Fourspotted toothcarp is currently being reviewed.

🦐 Diet

algae
aquatic plants
detritus

🥚 Reproduction

🐣 Viviparous 🤰 Viviparous
Spawning Season
spring
Spawn Location
Substrate
Fertilization
Internal

Gestation period is 24 days. Gives birth to 5-20 young, rarely more.

🌍 Habitat & Distribution

Freshwater; pelagic; pH range: 7.0 - ? ; dH range: ? - 12. Tropical; 20°C - 40°C Central America: Rio Sixaola, Costa Rica.

🌿 Ecology

Zone Preferences
💧 Freshwater 🐟 Pelagic
Trophic Level
2
Food Items

diatoms, desmids and detritus (Ref

📐 Morphometrics

Length–Weight Relationship: W = 0.00851 × L3.15 (TL)
Max TL
3.5cm

🌡️ Water Parameters & Tolerance

Temperature Range
20–40°C
Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Endangered
Assessment Date
2019

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
20.00/100
Low vulnerability
Trophic Level
2
Omnivore / Planktivore
Body Shape
Elongated
Climate Zone
Tropical
Described By
Bussing, 1979

🦠 Common Diseases

The following diseases are known to affect Fourspotted toothcarp.

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