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💧 Freshwater 🌡️ Tropical

Eigenmannia Dutrai

Eigenmannia dutrai Peixoto, Pastana & Ballen, 2021
Max Length
26 cm
Max Weight
-
Lifespan
-
Trophic Level
3.1
Depth
-
Climate
Tropical
Resilience
-
Vulnerability
14.00/100
Typical Length
-
Depth Zone
-

📖 Overview

Eigenmannia Dutrai (Eigenmannia dutrai), first described by Peixoto, Pastana & Ballen, 2021 is a medium-sized fish in the family Sternopygidae (order Gymnotiformes). Adults typically reach 26.00 cm in maximum length. It inhabits freshwater systems including rivers, streams, and lakes. It occurs in Tropical waters. It is broadly omnivorous, taking invertebrates, plant matter, and detritus.

Scientific Name
Eigenmannia dutrai
Authority
Peixoto, Pastana & Ballen, 2021
Habitat
Freshwater
Climate
Tropical
Body Shape
Elongated
Max Length
26 cm
Trophic Level
3.1
Vulnerability
14.00/100
Salinity
0–0.5 ppt

🐟 Physical Description

Anal soft rays: 171 - 206. This species is distinguished by the following characters: presence of superior midlateral stripe; subterminal mouth; depth of posterodorsal expansion on infraorbitals 1 + 2 and approximately equal TL of infraorbitals 1 + 2; dentary teeth 35-36; premaxillary teeth 23-29; scale rows above LL 12-15; coronomeckelian bone that corresponds to 25% of length of Meckel's cartilage; origin of the superior midlateral stripe at vertical between the bases of 18th and 30th anal-fin rays; anterior displaced haemal spine, slightly cylindrical; precaudal vertebrae, 14-16; pectoral-fin rays, Ii,14-16; anal-fin rays, 171-206 .: elongated; Cross section: compressed.

🌀 Behaviour

Behavioural data for Eigenmannia Dutrai 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: Brazil.

🌿 Ecology

Zone Preferences
💧 Freshwater
Trophic Level
3.1±0.3

📐 Morphometrics

Length–Weight Relationship: W = 0.00355 × L2.97 (TL)
Max TL
26cm
Anal Rays
189

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

📊 Population Risk & Fisheries

Fishing Vulnerability
14.00/100
Low vulnerability
Trophic Level
3.1
Predator
Body Shape
Elongated
Climate Zone
Tropical
Described By
Peixoto, Pastana & Ballen, 2021

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