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💧 Freshwater Least Concern 🐠 Aquarium 🌡️ Tropical

Spatuloricaria Tuira

Spatuloricaria tuira Fichberg, Oyakawa & de Pinna, 2014
Max Length
46 cm
Max Weight
-
Lifespan
-
Trophic Level
2.3
Depth
-
Climate
Tropical
Resilience
Low
Vulnerability
55.00/100
Typical Length
-
Depth Zone
demersal

📖 Overview

Occurs on the bottom of medium to large rivers, in association with rocky or sandy substrates in fast-flowing sectors .

Scientific Name
Spatuloricaria tuira
Authority
Fichberg, Oyakawa & de Pinna, 2014
Habitat
Freshwater
Climate
Tropical
IUCN Status
LC
Max Length
46 cm
Trophic Level
2.3
Resilience
Low
Vulnerability
55.00/100
Salinity
0–0.5 ppt

🐟 Physical Description

Dorsal soft rays (total): 8; Anal soft rays: 6. Spatuloricaria tuirais distinguished from all other congeners except Spatuloricaria nudiventris by its abdominal surface completely naked or rarely with few, very small plates (vs. abdominal region covered with plates) and by the absence of preanal plates (vs. presence of one to four preanal plates). It can be differentiated from S. nudiventris and S. fimbriata by having five transversal dark brown bands on the dorsal region (vs. four transversal dark brown dorsal bands in S. nudiventris and S. fimbriata) and by having dark-brown irregular stripes on the dorsal region of the head and predorsal area (vs. absence of such stripes in S. nudiventris and S. fimbriata). This species has the smallest males recorded among species of Spatuloricaria, with mature individuals ranging from 8.55 to 15.39 cm SL and seems to be the only one in the genus where mature males are smaller than mature females (the opposite is the case in other species of Spatuloricaria). However, additional materials of some of the other species are needed to further verify these observations .

🌀 Behaviour

Behavioural data for Spatuloricaria Tuira is currently being reviewed.

🦐 Diet

algae
aquatic plants
detritus

🥚 Reproduction

🐣 Oviparous
Spawning Season
spring
Spawn Location
Substrate
Fertilization
External

🌍 Habitat & Distribution

Freshwater; demersal. Tropical South America: Rio Xingu and the Rio Tapajós drainages in Brazil.

🌿 Ecology

Zone Preferences
💧 Freshwater ⬇️ Benthic
Trophic Level
2.3±0.2

📐 Morphometrics

Length–Weight Relationship: W = 0.0024 × L3 (TL)
Max TL
46cm
Dorsal Rays
8
Anal Rays
6

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2018

📊 Population Risk & Fisheries

Population Resilience
Low
Minimum doubling time
Fishing Vulnerability
55.00/100
Moderate-High vulnerability
Trophic Level
2.3
Omnivore / Planktivore
Climate Zone
Tropical
Described By
Fichberg, Oyakawa & de Pinna, 2014

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