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💧 Freshwater Near Threatened 🌡️ Temperate

Aquitanian pike

Esox aquitanicus Denys, Dettai, Persat, Hautecoeur & Keith, 2014
Max Length
41.6 cm
Max Weight
-
Lifespan
-
Trophic Level
3.8
Depth
-
Climate
Temperate
Resilience
Medium
Vulnerability
43.00/100
Typical Length
-
Depth Zone
-

📖 Overview

E. aquitanicus should have similar ecological characteristics as E. lucius in terms of habitat, behavior, and predation, because no difference were mentioned about ecological traits between Aquitanian and the other French pike populations, except an earlier spawning in February instead of March-April. Its size can exceed 1000 mm TL (Dégrave, pers. comm.) A pike of 1370 mm was mentioned by Laporte in Lake Cazeau, right in the heart of the distribution area of E. aquitanicus. However, we cannot exclude early stockings of E. lucius. When there is cohabitation between the two species, the Aquitanian pike is able to hybridize with the northern pike (present study)

Scientific Name
Esox aquitanicus
Authority
Denys, Dettai, Persat, Hautecoeur & Keith, 2014
Habitat
Freshwater
Climate
Temperate
IUCN Status
NT
Max Length
41.6 cm
Trophic Level
3.8
Resilience
Medium
Vulnerability
43.00/100
Salinity
0–0.5 ppt

🐟 Physical Description

Physical description for Aquitanian pike is currently being compiled.

🌀 Behaviour

Behavioural data for Aquitanian pike 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. Temperate; 43°N - 46°N, 2°W - 1°E known most southern location.

🌿 Ecology

Zone Preferences
💧 Freshwater
Trophic Level
3.8±0.4

📐 Morphometrics

Length–Weight Relationship: W = 0.00501 × L3.07 (TL)
Max TL
41.6cm

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Near Threatened
Assessment Date
2023

📊 Population Risk & Fisheries

Population Resilience
Medium
Minimum doubling time
Fishing Vulnerability
43.00/100
Moderate vulnerability
Trophic Level
3.8
Predator
Climate Zone
Temperate
Described By
Denys, Dettai, Persat, Hautecoeur & Keith, 2014

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