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💧 Freshwater Near Threatened 🐠 Aquarium 🌡️ Tropical

Holdridges toothcarp

Brachyrhaphis holdridgei Bussing, 1967
Max Length
5 cm
Max Weight
-
Lifespan
-
Trophic Level
3.5
Depth
-
Climate
Tropical
Resilience
High
Vulnerability
28.00/100
Typical Length
-
Depth Zone
pelagic

📖 Overview

Inhabits stagnant waters or creeks with low current velocity between 35 and 620 m elevation; in temperatures from 21 to 37°C; swims in small groups over muddy bottoms. Feeds on terrestrial insects .

Scientific Name
Brachyrhaphis holdridgei
Authority
Bussing, 1967
Habitat
Freshwater
Climate
Tropical
Body Shape
Elongated
IUCN Status
NT
Max Length
5 cm
Trophic Level
3.5
Resilience
High
Vulnerability
28.00/100
Migration
Non-migratory
Water Temp
21–37 °C
Salinity
0–0.5 ppt

🐟 Physical Description

Anal fin almost as long as or longer than head length. Dorsal fin rays long and almost reach the base of the caudal fin, lacking a distance equal to or less than the eye diameter. Sides of the body with 10 - 12 dark bars and 3 or 4 series of spots which correspond to the longitudinal scale rows along the body. Dark caudal fin margin with a vertical series of short dark streaks a little closer to the base than to the posterior margin of the tail. Dorsal fin red-orange with black stripes on the base. Body gray with a tenuous pink or orange hue .: elongated; Cross section: oval.

🌀 Behaviour

Behavioural data for Holdridges toothcarp is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

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

🌍 Habitat & Distribution

Freshwater; pelagic; non-migratory. Tropical; 21°C - 37°C Central America: Río Prinzapolka, Nicaragua to the Río Pacuare, Costa Rica.

🌿 Ecology

Zone Preferences
💧 Freshwater 🐟 Pelagic
Migration
Non-migratory
Trophic Level
3.5±0.5
Food Items

terrestrial insects (Ref

📐 Morphometrics

Length–Weight Relationship: W = 0.00851 × L3.15 (TL)
Max TL
5cm

🌡️ Water Parameters & Tolerance

Temperature Range
21–37°C
Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Near Threatened
Assessment Date
2020

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
28.00/100
Low vulnerability
Trophic Level
3.5
Predator
Body Shape
Elongated
Climate Zone
Tropical
Described By
Bussing, 1967

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