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💧 Freshwater Least Concern 🌡️ Tropical

Tetra

Hemigrammus iota Durbin, 1909
Max Length
2.1 cm
Max Weight
Lifespan
Trophic Level
3
Depth
Climate
Tropical
Resilience
High
Vulnerability
10.00/100
Typical Length
Depth Zone

📖 Overview

Tetra (Hemigrammus iota) is a ray-finned fish of the family Acestrorhamphidae. It inhabits freshwater waters. This species can reach a maximum total length of 2.1 cm. With a trophic level of 3, it is a low-level carnivore, feeding on invertebrates and small organisms. It is assessed as Least Concern on the IUCN Red List.

Scientific Name
Hemigrammus iota
Authority
Durbin, 1909
Habitat
Freshwater
Climate
Tropical
IUCN Status
LC
Max Length
2.1 cm
Trophic Level
3
Resilience
High
Vulnerability
10.00/100
Salinity
0–0.5 ppt

🐟 Physical Description

Physical description for Tetra is currently being compiled.

🌀 Behaviour

Behavioural data for Tetra is currently being reviewed.

🦐 Diet

Diet information for Tetra is currently being compiled.

🥚 Reproduction

Reproduction data for Tetra is currently being compiled.

🌍 Habitat & Distribution

Freshwater; benthopelagic. Tropical South America: Essequibo River basin.

🌿 Ecology

Zone Preferences
💧 Freshwater
Trophic Level
3±0.4

📐 Morphometrics

Length–Weight Relationship: W = 0.00589 × L3.16 (TL)
Max TL
2.1cm

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2020

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
10.00/100
Low vulnerability
Trophic Level
3
Predator
Climate Zone
Tropical
Described By
Durbin, 1909

🌐 Names & Taxonomy

Language Common Names
🇬🇧English Tetra
🌍CES tetra jota

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) — 1 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

Aquareap Community Observations
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