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💧 Freshwater Endangered 🌡️ Tropical

Garcialebias Nigrofasciatus

Garcialebias nigrofasciatus Costa & Cheffe, 2001
Max Length
5.8 cm
Max Weight
-
Lifespan
-
Trophic Level
3.2
Depth
-
Climate
Tropical
Resilience
High
Vulnerability
10.00/100
Typical Length
-
Depth Zone
-

📖 Overview

Garcialebias Nigrofasciatus (Garcialebias nigrofasciatus) is a ray-finned fish. It inhabits freshwater waters. This species can reach a maximum total length of 5.8 cm. With a trophic level of 3.2, it is a low-level carnivore, feeding on invertebrates and small organisms. It is assessed as Endangered on the IUCN Red List.

Scientific Name
Garcialebias nigrofasciatus
Authority
Costa & Cheffe, 2001
Habitat
Freshwater
Climate
Tropical
Body Shape
Elongated
IUCN Status
EN
Max Length
5.8 cm
Trophic Level
3.2
Resilience
High
Vulnerability
10.00/100
Migration
Non-migratory
Salinity
0–0.5 ppt

🔬 Taxonomy

Genus
Garcialebias
Garcialebias
Species
Garcialebias Nigrofasciatus
Garcialebias nigrofasciatus

🐟 Physical Description

Dorsal spines (total): 0; Dorsal soft rays (total): 16 - 23; Anal spines: 0; Anal soft rays: 18 - 26; Vertebrae: 27 - 30. Two apomorphic color patterns, body bright gray with dark gray to black stripes in males (versus light gray or no stripes) and a vertically paired black blotch on caudal peduncle of juveniles and females (versus small spots irregularly arranged, or a single round dorsally positioned spot, or no spots on caudal peduncle). Males with light blue stripes parallel to rays on the basal half of unpaired fins and a black blotch anteriorly bordered by a narrow blue line on posterior portion of dorsal and anal fins. Scales on longitudinal series 26-28, supraorbital neuromasts 16-19, pharyngobranchial teeth 2-5. Dorsal fin origin anterior to anal fin origin in females. Caudal fin rounded.: elongated.

🌀 Behaviour

Behavioural data for Garcialebias Nigrofasciatus 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; non-migratory. Tropical South America: inner drainages between laguna dos Patos and lagoa Mirim, southern Brazil.

🌿 Ecology

Zone Preferences
💧 Freshwater
Migration
Non-migratory
Trophic Level
3.2±0.4

📐 Morphometrics

Length–Weight Relationship: W = 0.00813 × L3.21 (TL)
Max TL
5.8cm
Dorsal Rays
20
Anal Rays
22
Vertebrae
29

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Endangered
Assessment Date
2018

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
10.00/100
Low vulnerability
Trophic Level
3.2
Predator
Body Shape
Elongated
Climate Zone
Tropical
Described By
Costa & Cheffe, 2001

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