Study of the history, biology, and evolution of the Aquitaine pike Esox aquitanicus

The Aquitanian pike, Esox aquitanicus, is a recently discovered (2014) endemic species of the southwestern France. Due to its recent identification, few details are known about its biology and ecology.

Like the common pike, Esox lucius, it is listed as a vulnerable species on the French national IUCN Red List. This species is threatened by habitat modification and competition with the common pike.

In order to preserve this species, it is imperative to conduct in-depth studies. These studies will serve as the basis for the implementation of adequate management and protection measures to safeguard this vulnerable species.

The objective of my research is to explore the history, biology, and ecology of this species. To this end, we will examine the historical distribution of Esox aquitanicus since the Paleolithic, using bone remains from the collections of the National Museum of Natural History, as well as those from different archaeological sites. Another aspect of this research project will be to study the crucial reproduction period, using techniques such as environmental DNA and otolithometry. This period can be influenced by both fishing activities and the increase in winter temperatures. Finally, we will analyze the parasites of the Aquitanian pike in order to better understand its parasite fauna and the potential threats to Esox aquitanicus.

These studies will help to improve our understanding of this unique species and to develop effective conservation strategies to protect it.