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💧 Freshwater Least Concern 🌡️ Tropical

Dark stonebasher

Pollimyrus nigricans Boulenger, 1906
Max Length
10 cm
Max Weight
-
Lifespan
-
Trophic Level
3.4
Depth
-
Climate
Tropical
Resilience
Medium
Vulnerability
12.00/100
Typical Length
-
Depth Zone
demersal

📖 Overview

Favors the shallow mud bottom waters near fringing vegetation such as papyrus and Vossia . Feeds on aquatic insects, mainly chironomid larvae , on Caridina and caenid larvae , but also on algae and plankton . A male to female ratio of 1:10.5 has been noted for this species; it breeds continuously throughout the year with obvious peaks during the rains . Anadromous . Migrates up the rivers to spawn in temporary pools and streams . Oviparous .

Scientific Name
Pollimyrus nigricans
Authority
Boulenger, 1906
Habitat
Freshwater
Climate
Tropical
Body Shape
Short and / or deep
IUCN Status
LC
Max Length
10 cm
Trophic Level
3.4
Resilience
Medium
Vulnerability
12.00/100
Migration
Potamodromous
Salinity
0–0.5 ppt

🔬 Taxonomy

🐟 Physical Description

: short and / or deep.

🌀 Behaviour

Behavioural data for Dark stonebasher 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; potamodromous . Tropical

🌿 Ecology

Zone Preferences
💧 Freshwater ⬇️ Benthic
Migration
Potamodromous
Trophic Level
3.4±0.5
Food Items

aquatic insects, mainly chironomid larvae (Ref

📐 Morphometrics

Length–Weight Relationship: W = 0.01622 × L2.99 (TL)
Max TL
10cm

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2015

📊 Population Risk & Fisheries

Population Resilience
Medium
Minimum doubling time
Fishing Vulnerability
12.00/100
Low vulnerability
Trophic Level
3.4
Predator
Body Shape
Short and / or deep
Climate Zone
Tropical
Described By
Boulenger, 1906

🌐 Names & Taxonomy

Language Common Names
🇬🇧English Dark Stonebasher
🌍CES rypoun chmurný

Scientific Synonyms

Scientific Name Author Year Status
Marcusenius nigricans Boulenger 1906 Synonym

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 36 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

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