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💧 Freshwater Extinct 🌡️ Temperate

Coregonus Obliterus

Coregonus obliterus Selz & Seehausen, 2023
Max Length
28.8 cm
Max Weight
-
Lifespan
-
Trophic Level
3.4
Depth
-
Climate
Temperate
Resilience
Medium
Vulnerability
41.00/100
Typical Length
-
Depth Zone
-

📖 Overview

Coregonus Obliterus (Coregonus obliterus), first described by Selz & Seehausen, 2023 is a medium-sized fish in the family Salmonidae (order Salmoniformes). Adults typically reach 28.80 cm in maximum length. It inhabits freshwater systems including rivers, streams, and lakes. It occurs in Temperate waters. It feeds on a mix of small fish and invertebrates as a mid-level predator. On the IUCN Red List, it is classified as Extinct.

Scientific Name
Coregonus obliterus
Authority
Selz & Seehausen, 2023
Habitat
Freshwater
Climate
Temperate
IUCN Status
EX
Max Length
28.8 cm
Trophic Level
3.4
Resilience
Medium
Vulnerability
41.00/100
Salinity
0–0.5 ppt

🐟 Physical Description

It is a small whitefish species with average pigmentation on its fins and body, characterized by an elongated, slender body (body depth: 22.7-26.1% SL, average 24.3), a short mouth (maxilla length: 17-21.7% HL, average 19.6), and a pronounced rostral plate. The species has very large eyes (eye diameter: 21.5-24.7% HL, average 23.2) with a subtle triangular or occasionally roundish eye socket. Its gill rakers are few and very short (longest gill raker: 7.6-10.6% HL, average 8.8), with a total count of 21-26.

🌀 Behaviour

Behavioural data for Coregonus Obliterus 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. Temperate

🌿 Ecology

Zone Preferences
💧 Freshwater
Trophic Level
3.4±0.3

📐 Morphometrics

Length–Weight Relationship: W = 0.00457 × L3.13 (TL)
Max TL
28.8cm

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Extinct
Assessment Date
2023

📊 Population Risk & Fisheries

Population Resilience
Medium
Minimum doubling time
Fishing Vulnerability
41.00/100
Moderate vulnerability
Trophic Level
3.4
Predator
Climate Zone
Temperate
Described By
Selz & Seehausen, 2023

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