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💧 Freshwater Least Concern 🌡️ Subtropical

Rize trout

Salmo rizeensis Turan, Kottelat & Engin, 2010
Max Length
25 cm
Max Weight
-
Lifespan
-
Trophic Level
3.5
Depth
-
Climate
Subtropical
Resilience
Medium
Vulnerability
38.00/100
Typical Length
-
Depth Zone
-

📖 Overview

Occurs in small pools of streams with cold, clear and very swift flowing water, with high concentration of dissolved oxygen and substrate consisting of rocks, stones and few pebbles. Spends whole life and spawns in the upper reaches. Does not undertake migration during spawning period. Spawns in September-October. Overwinters into sand or gravel or under rocks and stones in small streams. Seems to stop feeding during winter as all specimens collected in winter had empty stomach .

Scientific Name
Salmo rizeensis
Authority
Turan, Kottelat & Engin, 2010
Habitat
Freshwater
Climate
Subtropical
Body Shape
Fusiform / normal
IUCN Status
LC
Max Length
25 cm
Trophic Level
3.5
Resilience
Medium
Vulnerability
38.00/100
Salinity
0–0.5 ppt

🐟 Physical Description

Anal soft rays: 11; Vertebrae: 55 - 57. Distinguished from all its congeners in Turkey and adjacent areas by the combination of the following characters: small size, maximum length of about 25 cm SL; body brownish in life; black spots on body, small to medium (usually smaller than pupil), ocellated, restricted to back (missing in mid-dorsal area in front of dorsal fin) and to upper part of flank, few (decreasing in number with size); red spots few, small, ocellated, not very conspicuous, usually organized in three or four irregular longitudinal rows on median and lower part of flank, their appearance, size and number not changing with size; head long (27.8-31.1% SL in males, 25.3-27.4 in females), 1.2-1.4 times body depth at dorsal fin origin in male, distinctly sexually dimorphic; maxilla long (length 9.6-12.1 % SL in males, 8.6-9.8 in females), reaching beyond eye in both adults and juveniles, upper edge straight or slightly convex posteriorly in males; adipose fin slender, upper edge straight or very slightly convex anteriorly . : fusiform / normal.

🌀 Behaviour

Behavioural data for Rize trout is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

🐣 Oviparous 🪺 Nest Builder 🛡️ Egg Guarder
Spawning Season
spring
Spawn Location
Nest
Fertilization
External

🌍 Habitat & Distribution

Freshwater; benthopelagic. Subtropical west and Coruh drainage in the east.

🌿 Ecology

Zone Preferences
💧 Freshwater
Trophic Level
3.5±0.5

📐 Morphometrics

Length–Weight Relationship: W = 0.01047 × L3.03 (TL)
Max TL
25cm
Anal Rays
11
Vertebrae
56

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2013

📊 Population Risk & Fisheries

Population Resilience
Medium
Minimum doubling time
Fishing Vulnerability
38.00/100
Moderate vulnerability
Trophic Level
3.5
Predator
Body Shape
Fusiform / normal
Climate Zone
Subtropical
Described By
Turan, Kottelat & Engin, 2010

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