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💧 Freshwater Least Concern 🌡️ Tropical

Acestrocephalus Stigmatus

Acestrocephalus stigmatus Menezes, 2006
Max Length
13.5 cm
Max Weight
-
Lifespan
-
Trophic Level
3.7
Depth
-
Climate
Tropical
Resilience
-
Vulnerability
10.00/100
Typical Length
-
Depth Zone
-

📖 Overview

Acestrocephalus Stigmatus (Acestrocephalus stigmatus) is a ray-finned fish of the family Characidae. It inhabits freshwater waters. This species can reach a maximum total length of 13.5 cm. With a trophic level of 3.7, it is a mid-level predator. It is assessed as Least Concern on the IUCN Red List.

Scientific Name
Acestrocephalus stigmatus
Authority
Menezes, 2006
Habitat
Freshwater
Climate
Tropical
Body Shape
Fusiform / normal
IUCN Status
LC
Max Length
13.5 cm
Trophic Level
3.7
Vulnerability
10.00/100
Salinity
0–0.5 ppt

🐟 Physical Description

Dorsal soft rays (total): 11; Anal soft rays: 33 - 35; Vertebrae: 38 - 39. Distinguished from all species of Acestrocephalusexcept Acestrocephalus boehlkei and Acestrocephalus maculosus by having a dark humeral blotch. Differs from Acestrocephalus boehlkei in having fewer anal-fin rays 29-31 (vs. 34-36) and fewer scale rows around caudal peduncle 22-23 (vs. 25); and from Acestrocephalus maculosus in having more anal-fin rays 29-31 (vs. 25-27). The muscular hiatus of the pseudotympanum in Acestrocephalus stigmatus is narrower than that of Acestrocephalus boehlkei, but much more developed than that of Acestrocephalus maculosus . : fusiform / normal.

🌀 Behaviour

Behavioural data for Acestrocephalus Stigmatus is currently being reviewed.

🦐 Diet

Diet information for Acestrocephalus Stigmatus is currently being compiled.

🥚 Reproduction

Reproduction data for Acestrocephalus Stigmatus is currently being compiled.

🌍 Habitat & Distribution

Freshwater; benthopelagic. Tropical South America: Rio Tocantins, Rio das Mortes (tributary of Rio Araguaia) and Rio Xingu in Brazil.

🌿 Ecology

Zone Preferences
💧 Freshwater
Trophic Level
3.7±0.6

📐 Morphometrics

Length–Weight Relationship: W = 0.00891 × L3.09 (TL)
Max TL
13.5cm
Dorsal Rays
11
Anal Rays
34
Vertebrae
39

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2018

📊 Population Risk & Fisheries

Fishing Vulnerability
10.00/100
Low vulnerability
Trophic Level
3.7
Predator
Body Shape
Fusiform / normal
Climate Zone
Tropical
Described By
Menezes, 2006

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