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💧 Freshwater Least Concern 🐠 Aquarium 🌡️ Subtropical

Phoxinus Bigerri

Phoxinus bigerri Kottelat, 2007
Max Length
6.6 cm
Max Weight
-
Lifespan
-
Trophic Level
3
Depth
-
Climate
Subtropical
Resilience
High
Vulnerability
22.00/100
Typical Length
-
Depth Zone
-

📖 Overview

Found in clear water with moderate current, about 50 cm depth . Adults inhabit streams and creeks in foothills with clear and cold water, and gravel to stone bottom. They occur in groups and feed predominantly on aquatic invertebrates .

Scientific Name
Phoxinus bigerri
Authority
Kottelat, 2007
Habitat
Freshwater
Climate
Subtropical
Body Shape
Elongated
IUCN Status
LC
Max Length
6.6 cm
Trophic Level
3
Resilience
High
Vulnerability
22.00/100
Migration
Potamodromous
Salinity
0–0.5 ppt

🐟 Physical Description

Diagnosed from its congeners in Europe by the possession of the following characters: origin of anal fin below or behind base of last dorsal ray; in adults, anal fin length about equal to caudal peduncle length; anal fin margin straight to convex; distance between tip of first and last branched anal rays 1.1-1.8 times depth of caudal peduncle (with fin stretched out); dorsal head profile almost horizontal above eye, then abruptly descending towards tip of snout; patches of breast scales separated by unscaled area or connected anteriorly by 1-2 rows of scales; lateral line usually reaching almost to end of caudal peduncle; in preserved individuals, flank with a midlateral row of vertically elongated blotches whose depth is about 1/3-1/2 of body depth at same position; caudal peduncle depth 2.3-3.1 times in its length; interorbital width 33-43% HL; marked hump at nape in largest individuals .: elongated.

🌀 Behaviour

Behavioural data for Phoxinus Bigerri 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; potamodromous . Subtropical

🌿 Ecology

Zone Preferences
💧 Freshwater
Migration
Potamodromous
Trophic Level
3±0.4

📐 Morphometrics

Length–Weight Relationship: W = 0.00589 × L3.13 (TL)
Max TL
6.6cm

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2024

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
22.00/100
Low vulnerability
Trophic Level
3
Predator
Body Shape
Elongated
Climate Zone
Subtropical
Described By
Kottelat, 2007

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