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💧 Freshwater Least Concern 🌡️ Tropical

Holopristis Yinyang

Holopristis yinyang Lima & Sousa, 2009
Max Length
2.9 cm
Max Weight
-
Lifespan
-
Trophic Level
3
Depth
-
Climate
Tropical
Resilience
-
Vulnerability
10.00/100
Typical Length
-
Depth Zone
-

📖 Overview

Caught in moderately large (2-6 m wide) streams, with clear water, carrying little suspended sediment. Also collected from dark-colored waters or muddy, silt-laden waters .

Scientific Name
Holopristis yinyang
Authority
Lima & Sousa, 2009
Habitat
Freshwater
Climate
Tropical
Body Shape
Short and / or deep
IUCN Status
LC
Max Length
2.9 cm
Trophic Level
3
Vulnerability
10.00/100
Salinity
0–0.5 ppt

🔬 Taxonomy

Genus
Holopristis
Holopristis
Species
Holopristis Yinyang
Holopristis yinyang

🐟 Physical Description

Dorsal spines (total): 2; Dorsal soft rays (total): 9; Anal spines: 3 - 4; Anal soft rays: 19 - 23; Vertebrae: 33 - 34. Distinguished from all other species of the genus Hemigrammus by having (in life) an orange blotch, located between two dark humeral blotches, immediately ahead and slightly above the posterior, darker second humeral blotch. Differs further from all congeners, except Hemigrammus haraldi, Hemigrammus luelingi, Hemigrammus neptunus, Hemigrammus ocellifer, Hemigrammus pretoensis, and Hemigrammus pulcher, by the possession of two humeral blotches. Diagnosed from all these species by the absence of a blotch on the caudal peduncle (vs. caudal peduncle blotch present).: short and / or deep.

🌀 Behaviour

Behavioural data for Holopristis Yinyang is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

🐣 Oviparous
Spawning Season
spring
Spawn Location
Substrate
Fertilization
External

🌍 Habitat & Distribution

Freshwater; benthopelagic. Tropical

🌿 Ecology

Zone Preferences
💧 Freshwater
Trophic Level
3±0.4

📐 Morphometrics

Length–Weight Relationship: W = 0.01698 × L3.05 (TL)
Max TL
2.9cm
Dorsal Spines
2
Dorsal Rays
9
Anal Spines
4
Anal Rays
21
Vertebrae
34

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2018

📊 Population Risk & Fisheries

Fishing Vulnerability
10.00/100
Low vulnerability
Trophic Level
3
Predator
Body Shape
Short and / or deep
Climate Zone
Tropical
Described By
Lima & Sousa, 2009

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