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💧 Freshwater 🌡️ Tropical

Nemadoras Cristinae

Nemadoras cristinae Sabaj Pérez, Arce H., Sousa & Birindelli, 2014
Max Length
12.4 cm
Max Weight
-
Lifespan
-
Trophic Level
2.8
Depth
-
Climate
Tropical
Resilience
High
Vulnerability
15.00/100
Typical Length
-
Depth Zone
demersal

📖 Overview

Occurs in the main channels of whitewater (sediment rich) rivers. Collected using gill nets, bottom trawls to depths of 0.6-13.9 m, and long floating nets pulled by canoe in the main channels of large rivers. Feeds on larval insects .

Scientific Name
Nemadoras cristinae
Authority
Sabaj Pérez, Arce H., Sousa & Birindelli, 2014
Habitat
Freshwater
Climate
Tropical
Max Length
12.4 cm
Trophic Level
2.8
Resilience
High
Vulnerability
15.00/100
Salinity
0–0.5 ppt

🐟 Physical Description

Dorsal spines (total): 2; Dorsal soft rays (total): 6. Nemadoras cristinae differs from all congeners by the possession of the following characters: 3-9 premaxillary teeth in approximately two rows in juveniles and adults; outermost teeth weakly spatulate and innermost more acicular (vs. premaxillary edentulous in adults of all congeners and limited to 1-6 acicular teeth in juveniles of N. elongatus, N. humeralis, N. leporhinus and N. ternetzi); and mental barbels with extremely elongate (filiform) papillae, length of longest about 4-7 times its width at base (vs. papillae shorter, length of longest

🌀 Behaviour

Behavioural data for Nemadoras Cristinae is currently being reviewed.

🦐 Diet

Diet information for Nemadoras Cristinae is currently being compiled.

🥚 Reproduction

Reproduction data for Nemadoras Cristinae is currently being compiled.

🌍 Habitat & Distribution

Freshwater; demersal. Tropical South America: upper Meta (Orinoco drainage)in Colombia, upper Amazonas circa Iquitos and río Santiago (tributary of Marañon) in Peru; middle Amazonas (Solimões) from mouth of Putumayo/Iça to that of Madeira, Brazil; and Madeira basin from its mouth to rio Madre de Dios in Peru.

🌿 Ecology

Zone Preferences
💧 Freshwater ⬇️ Benthic
Trophic Level
2.8±0.4
Food Items

larval insects (Ref

📐 Morphometrics

Length–Weight Relationship: W = 0.01479 × L2.99 (TL)
Max TL
12.4cm
Dorsal Spines
2
Dorsal Rays
6

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
15.00/100
Low vulnerability
Trophic Level
2.8
Omnivore / Planktivore
Climate Zone
Tropical
Described By
Sabaj Pérez, Arce H., Sousa & Birindelli, 2014

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