Functional diversity of artificial nurseries in port areas and their trophic connectivity with adjacent ecosystems
Figure 1 : Artificial nursery Biohut colonized by coastal organisms
Artificial nurseries; Functional diversity; Trophic connectivity; Ecological restoration; Coastal engineering
Francesca ROSSI (ECOSEAS), Sebastien Fonbonne (ECOCEAN), Gilles Lecaillon (ECOCEAN)
Alix VARENNE (PhD student)



anrt        cifre

From 06/01/2021 until 05/31/2024

Coastal grey artificial structures can greatly modify communities and ecosystem functioning, often decreasing biodiversity and enhancing biological invasions. The artificialisation of these habitats does not allow real measures of restoration. However, it is possible to ameliorate biodiversity and functioning and reconcile these systems with nature. The private company Ecocean ( has designed artificial nurseries called Biohut in order to facilitate the recruitment of fishes in ports.

The aim of this thesis is to improve the understanding of trophic relationships within these nurseries and with the surroundings and make hypotheses about the role of Biohut in influencing trophic connectivity of these areas. We will use bulk stable isotopes (SI) in order to establish trophic connections and define the trophic role of these Biohut. We will also sample for species and functional diversity in order to improve knowledge about the role of Biohut in imporving port reconciliation.


This PhD thesis is funded by the ANRT (association national recherche technologie) with the CIFRE program.

Francesca ROSSI (This email address is being protected from spambots. You need JavaScript enabled to view it. ; ECOSEAS)