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💧 Freshwater Least Concern 🌡️ Tropical

Sternopygus Obtusirostris

Sternopygus obtusirostris Steindachner, 1881
Max Length
56 cm
Max Weight
-
Lifespan
-
Trophic Level
3.2
Depth
-
Climate
Tropical
Resilience
-
Vulnerability
27.00/100
Typical Length
-
Depth Zone
-

📖 Overview

Inhabits blackwater rivers and their seasonally inundated floodplain lakes and forests . Feeds on invertebrates .

Scientific Name
Sternopygus obtusirostris
Authority
Steindachner, 1881
Habitat
Freshwater
Climate
Tropical
IUCN Status
LC
Max Length
56 cm
Trophic Level
3.2
Vulnerability
27.00/100
Salinity
0–0.5 ppt

🐟 Physical Description

Dorsal spines (total): 0; Dorsal soft rays (total): 0; Anal soft rays: 195 - 312. Body and head of living specimens uniformly black or very dark purple-brown with no humeral spot or patch; juveniles undergo striking pigmentation change from uniformly black by day to very pale with two distinct vertical saddle-like markings at night; dorsal margin of head well rounded (very convex) in adults .

🌀 Behaviour

Behavioural data for Sternopygus Obtusirostris is currently being reviewed.

🦐 Diet

Diet information for Sternopygus Obtusirostris is currently being compiled.

🥚 Reproduction

Reproduction data for Sternopygus Obtusirostris is currently being compiled.

🌍 Habitat & Distribution

Freshwater; benthopelagic; pH range: 3.0 - 6.0. Tropical South America: main stem of Amazon River, lower Negro River basin in Brazil.

🌿 Ecology

Zone Preferences
💧 Freshwater
Trophic Level
3.2±0.42
Food Items

invertebrates (Ref

📐 Morphometrics

Length–Weight Relationship: W = 0.00347 × L3.01 (TL)
Max TL
56cm
Anal Rays
254

🌡️ Water Parameters & Tolerance

pH Range
3–6
Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2020

📊 Population Risk & Fisheries

Fishing Vulnerability
27.00/100
Low vulnerability
Trophic Level
3.2
Predator
Climate Zone
Tropical
Described By
Steindachner, 1881

👥 Community & Contribute

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