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💧 Freshwater Near Threatened 🐠 Aquarium 🌡️ Tropical

Dark Mahseer

Tor ater Roberts, 1999
Max Length
33.2 cm
Max Weight
-
Lifespan
-
Trophic Level
2.8
Depth
-
Climate
Tropical
Resilience
Medium
Vulnerability
44.00/100
Typical Length
-
Depth Zone
pelagic

📖 Overview

Dark Mahseer (Tor ater) is a ray-finned fish of the family Cyprinidae. It inhabits freshwater waters in pelagic environments. This species can reach a maximum total length of 33.2 cm. With a trophic level of 2.8, it is an omnivore, consuming both plant and animal matter. It is assessed as Near Threatened on the IUCN Red List.

Scientific Name
Tor ater
Authority
Roberts, 1999
Habitat
Freshwater
Climate
Tropical
Body Shape
Fusiform / normal
IUCN Status
NT
Max Length
33.2 cm
Trophic Level
2.8
Resilience
Medium
Vulnerability
44.00/100
Salinity
0–0.5 ppt

🔬 Taxonomy

🐟 Physical Description

Vertebrae: 43. A relatively small scaled species with the following characters: scales in lateral series 30-31; predorsal scales 11-12; transverse scale rows 5/1/2; mental lobe well-developed but very short; vertebrae 28+15=43; adults and subadults with a dark midlateral stripe on body and all fins very dark, almost black.: fusiform / normal; Cross section: oval.

🌀 Behaviour

Behavioural data for Dark Mahseer is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

🐣 Oviparous
Spawning Season
spring
Spawn Location
Substrate
Fertilization
External

🌍 Habitat & Distribution

Freshwater; pelagic. Tropical known only from the Nam Theun watershed (Mekong basin) at Ban Talang in central Laos.

🌿 Ecology

Zone Preferences
💧 Freshwater 🐟 Pelagic
Trophic Level
2.8±0.2

📐 Morphometrics

Length–Weight Relationship: W = 0.00955 × L3.02 (TL)
Max TL
33.2cm
Vertebrae
43

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Near Threatened
Assessment Date
2018

📊 Population Risk & Fisheries

Population Resilience
Medium
Minimum doubling time
Fishing Vulnerability
44.00/100
Moderate vulnerability
Trophic Level
2.8
Omnivore / Planktivore
Body Shape
Fusiform / normal
Climate Zone
Tropical
Described By
Roberts, 1999

🌐 Names & Taxonomy

Language Common Names
🇬🇧English Dark Mahseer
🌍CES mahsír černý
🌍EST Must mahsir

🗺️ 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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