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💧 Freshwater Least Concern 🐠 Aquarium 🌡️ Tropical

Hassar Orestis

Hassar orestis Steindachner, 1875
Max Length
29.8 cm
Max Weight
-
Lifespan
-
Trophic Level
2.8
Depth
-
Climate
Tropical
Resilience
High
Vulnerability
27.00/100
Typical Length
-
Depth Zone
demersal

📖 Overview

Hassar Orestis (Hassar orestis) is a ray-finned fish of the family Doradidae. It inhabits freshwater waters in benthic environments. This species can reach a maximum total length of 29.8 cm. With a trophic level of 2.8, it is an omnivore, consuming both plant and animal matter. It is assessed as Least Concern on the IUCN Red List.

Scientific Name
Hassar orestis
Authority
Steindachner, 1875
Habitat
Freshwater
Climate
Tropical
IUCN Status
LC
Max Length
29.8 cm
Trophic Level
2.8
Resilience
High
Vulnerability
27.00/100
Salinity
0–0.5 ppt

🔬 Taxonomy

🐟 Physical Description

Physical description for Hassar Orestis is currently being compiled.

🌀 Behaviour

Behavioural data for Hassar Orestis is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

🐣 Oviparous
Spawning Season
spring
Spawn Location
Substrate
Fertilization
External

🌍 Habitat & Distribution

Freshwater; demersal. Tropical South America: Amazon, Orinoco and Essequibo River basins.

🌿 Ecology

Zone Preferences
💧 Freshwater ⬇️ Benthic
Trophic Level
2.8±0.4

📐 Morphometrics

Length–Weight Relationship: W = 0.01 × L2.92 (TL)
Max TL
29.8cm

🌡️ 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
27.00/100
Low vulnerability
Trophic Level
2.8
Omnivore / Planktivore
Climate Zone
Tropical
Described By
Steindachner, 1875

🌐 Names & Taxonomy

Scientific Synonyms

Scientific Name Author Year Status
Hassar notospilus Eigenmann 1912 Synonym
Hassar ucayalensis Fowler 1940 Heterotypic
Hemidoras notospilus Eigenmann 1912 Synonym
Oxydoras orestis Steindachner 1875 Synonym

🗺️ Global Occurrence Map

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

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

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