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💧 Freshwater Critically Endangered 🌡️ Tropical

Characidium Grajahuense

Characidium grajahuense Travassos, 1944
Max Length
-
Max Weight
-
Lifespan
-
Trophic Level
3.5
Depth
-
Climate
Tropical
Resilience
-
Vulnerability
10.00/100
Typical Length
-
Depth Zone
-

📖 Overview

Characidium Grajahuense (Characidium grajahuense), first described by Travassos, 1944 is a fish in the family Crenuchidae (order Characiformes). It inhabits freshwater systems including rivers, streams, and lakes. It occurs in Tropical waters. It feeds on a mix of small fish and invertebrates as a mid-level predator. On the IUCN Red List, it is classified as Critically Endangered.

Scientific Name
Characidium grajahuense
Authority
Travassos, 1944
Habitat
Freshwater
Climate
Tropical
IUCN Status
CR
Trophic Level
3.5
Vulnerability
10.00/100
Salinity
0–0.5 ppt

🐟 Physical Description

Physical description for Characidium Grajahuense is currently being compiled.

🌀 Behaviour

Behavioural data for Characidium Grajahuense is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

🐣 Oviparous
Spawning Season
spring
Spawn Location
Substrate
Fertilization
External

🌍 Habitat & Distribution

Freshwater; benthopelagic. Tropical South America: coastal streams between Guanabara Bay and Mangaratiba, Rio de Janeiro, Brazil.

🌿 Ecology

Zone Preferences
💧 Freshwater
Trophic Level
3.5±0.3

📐 Morphometrics

Length–Weight Relationship: W = 0.01023 × L3.08 (TL)

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Critically Endangered
Assessment Date
2018

📊 Population Risk & Fisheries

Fishing Vulnerability
10.00/100
Low vulnerability
Trophic Level
3.5
Predator
Climate Zone
Tropical
Described By
Travassos, 1944

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