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💧 Freshwater 🌡️ Tropical

Onychostoma Dongnaiense

Onychostoma dongnaiense Hoang, Pham & Tran, 2015
Max Length
2 cm
Max Weight
-
Lifespan
-
Trophic Level
3
Depth
-
Climate
Tropical
Resilience
High
Vulnerability
10.00/100
Typical Length
-
Depth Zone
-

📖 Overview

Inhabits clear water but also lives in silty water. Occurs in swift currents over bedrock, large boulders and cobble substrates covered with periphyton. Feeds on algae and animals living in the algae. Shares habitat with Mystacoleucus obtusirostris, Osteochilus vittatus, Poropuntius deauratus, Channa gachua, Yasuhikotakia morleti, and Acantopsis dialuzona. The following water conditions were recorded: Dissolved oxygen 82.7−91.4%; conductivity 12−25 μS.cm-1 ; and flow velocity 0.12−0.77 m/s .

Scientific Name
Onychostoma dongnaiense
Authority
Hoang, Pham & Tran, 2015
Habitat
Freshwater
Climate
Tropical
Body Shape
Elongated
Max Length
2 cm
Trophic Level
3
Resilience
High
Vulnerability
10.00/100
Water Temp
26–28 °C
Salinity
0–0.5 ppt

🐟 Physical Description

Dorsal soft rays (total): 12; Anal soft rays: 8. Onychostoma dongnaiensis can be diagnosed from other species of Onychostoma by a combination of the following characters: mouth wide (width 1.4?1.6 times in HW); 14-15 predorsal scales; body depth high (3.1?3.4 times in SL); eye diameter small (4.2?4.9 times in HL), barbels absent in adults and juveniles; dorsal fin with a strong serrated last simple ray; and dorsal-fin length high (3.8?4.5 times in SL) .: elongated.

🌀 Behaviour

Behavioural data for Onychostoma Dongnaiense is currently being reviewed.

🦐 Diet

Diet information for Onychostoma Dongnaiense is currently being compiled.

🥚 Reproduction

Reproduction data for Onychostoma Dongnaiense is currently being compiled.

🌍 Habitat & Distribution

Freshwater; benthopelagic; pH range: 7.0 - 7.6. Tropical; 26°C - 28°C

🌿 Ecology

Zone Preferences
💧 Freshwater
Trophic Level
3±0.3
Food Items

algae and animals living in the algae

📐 Morphometrics

Length–Weight Relationship: W = 0.00912 × L3.08 (TL)
Max TL
2cm
Dorsal Rays
12
Anal Rays
8

🌡️ Water Parameters & Tolerance

Temperature Range
26–28°C
pH Range
7–7.6
Salinity Range
0–0.5ppt

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
10.00/100
Low vulnerability
Trophic Level
3
Predator
Body Shape
Elongated
Climate Zone
Tropical
Described By
Hoang, Pham & Tran, 2015

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