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💧 Freshwater Least Concern 🐠 Aquarium 🌡️ Subtropical

Alburnus Istanbulensis

Alburnus istanbulensis Battalgil, 1941
Max Length
18 cm
Max Weight
-
Lifespan
-
Trophic Level
2.8
Depth
-
Climate
Subtropical
Resilience
Medium
Vulnerability
39.00/100
Typical Length
-
Depth Zone
-

📖 Overview

Occurs in rivers and lakes. Forages in lower section of rivers, close to the surface. Undertakes migration to upper reaches of tributaries for spawning. Spawns in riffles with heavy current on gravel bottom .

Scientific Name
Alburnus istanbulensis
Authority
Battalgil, 1941
Habitat
Freshwater
Climate
Subtropical
Body Shape
Fusiform / normal
IUCN Status
LC
Max Length
18 cm
Trophic Level
2.8
Resilience
Medium
Vulnerability
39.00/100
Salinity
0–0.5 ppt

🐟 Physical Description

Diagnosed from congeners in Aegean and Black Sea basin by the following characters: origin of anal fin about ½ -1½ scales behind dorsal fin base; lateral line with 57-63 + 3-4 scales; anal fin with 13-15½ branched rays (mode 14½ ); base of paired fin hyaline or grey in spawners; 24-35 gill rakes (mode 31); length of gill raker at angle of upper and lower limbs of first gill arch 30-55% of opposite inner gill filament; ventral keel exposed for 8-12 scales in front of anus; caudal peduncle depth 1.8-2.3 times in its length; and nuptial males with few, large tubercles .: fusiform / normal.

🌀 Behaviour

Behavioural data for Alburnus Istanbulensis 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. Subtropical

🌿 Ecology

Zone Preferences
💧 Freshwater
Trophic Level
2.8±0.3

📐 Morphometrics

Length–Weight Relationship: W = 0.00661 × L3.13 (TL)
Max TL
18cm

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2022

📊 Population Risk & Fisheries

Population Resilience
Medium
Minimum doubling time
Fishing Vulnerability
39.00/100
Moderate vulnerability
Trophic Level
2.8
Omnivore / Planktivore
Body Shape
Fusiform / normal
Climate Zone
Subtropical
Described By
Battalgil, 1941

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