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💧 Freshwater Least Concern 🌡️ Tropical

Hemigrammus Silimoni

Hemigrammus silimoni Britski & Lima, 2008
Max Length
3.3 cm
Max Weight
-
Lifespan
-
Trophic Level
3.2
Depth
-
Climate
Tropical
Resilience
High
Vulnerability
10.00/100
Typical Length
-
Depth Zone
-

📖 Overview

The type locality is about 50 m wide and 1.7 to 2.0 m deep, with swift-running, crystal-clear waters and with bottom comprising of sand and rocks. Reported to occur in areas of slack current near the river bank. Gut contents include algae and other vegetal matter .

Scientific Name
Hemigrammus silimoni
Authority
Britski & Lima, 2008
Habitat
Freshwater
Climate
Tropical
Body Shape
Fusiform / normal
IUCN Status
LC
Max Length
3.3 cm
Trophic Level
3.2
Resilience
High
Vulnerability
10.00/100
Salinity
0–0.5 ppt

🐟 Physical Description

Dorsal soft rays (total): 11. The lower portion of the dorsal caudal-fin lobe with conspicuous ocellated caudal-fin blotch which is an autapomorphy which separates the new species from all congeners, and in fact from all remaining Characidae. The other members of Hemigrammus differ by having black pigmentation on the caudal fin either confined to the caudal-fin base (e.g., species belonging to the Hemigrammus ocellifer and Hemigrammus tridens groups, sensu), or as a discrete terminal bar (Hemigrammus marginatus), or finally as symmetrically-arranged black spots on the dorsal and ventral caudal-fin lobes (Hemigrammus bleheri and Hemigrammus rhodostomus) . : fusiform / normal.

🌀 Behaviour

Behavioural data for Hemigrammus Silimoni is currently being reviewed.

🦐 Diet

Diet information for Hemigrammus Silimoni is currently being compiled.

🥚 Reproduction

Reproduction data for Hemigrammus Silimoni is currently being compiled.

🌍 Habitat & Distribution

Freshwater; benthopelagic. Tropical South America: upper Rio Juruena, a tributary of the Rio Tapajós in Brazil.

🌿 Ecology

Zone Preferences
💧 Freshwater
Trophic Level
3.2±0.4

📐 Morphometrics

Length–Weight Relationship: W = 0.01259 × L3.05 (TL)
Max TL
3.3cm
Dorsal Rays
11

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2018

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
10.00/100
Low vulnerability
Trophic Level
3.2
Predator
Body Shape
Fusiform / normal
Climate Zone
Tropical
Described By
Britski & Lima, 2008

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