FN Archimer Export Format
PT J
TI Which concrete substrate suits you? Ostrea edulis larval preferences and implications for shellfish restoration in Europe
BT 
AF POTET, Marine
   Fabien, Aurélie
   Chaudemanche, Samuel
   Sebaidi, Nassim
   GUILLET, Theo
   Gachelin, Sonia
   Cochet, Hélène
   Boutouil, Mohamed
   POUVREAU, Stephane
AS 1:1;2:2;3:2;4:2;5:1;6:3;7:4;8:2;9:1;
FF 1:PDG-RBE-PFOM-LPI;2:;3:;4:;5:PDG-RBE-PFOM-LPI;6:;7:;8:;9:PDG-RBE-PFOM-LPI;
C1 Ifremer, Laboratory of Environmental Marine Sciences (UMR 6539 LEMAR), 29280 Plouzané, France
   COMUE Normandie Université, Laboratoire ESITC, ESITC Caen, 1 rue Pierre & Marie Curie, Épron, France
   Comité Régional Conchylicole de Bretagne Sud, 56400 Auray, France
   Bureau d'études COCHET Environnement, 56550 Locoal Mendon, France
C2 IFREMER, FRANCE
   UNIV NORMANDIE, FRANCE
   CRC, FRANCE
   COCHET ENVIRONNEMENT, FRANCE
SI ARGENTON
SE PDG-RBE-PFOM-LPI
UM LEMAR
IN WOS Ifremer UMR
   copubli-france
   copubli-univ-france
IF 4.379
TC 18
UR https://archimer.ifremer.fr/doc/00679/79093/81652.pdf
LA English
DT Article
DE ;Ostrea edulis;Larval recruitment;Artificial reef;Concrete;Seashell by-products;Restoration
AB The European flat oyster, Ostrea edulis, is an important ecosystem engineer that has been progressively disappearing from European coasts over the last century mainly due to overexploitation, habitat degradation and disease. It is now the subject of many conservation and restoration programs throughout Europe, including the Flat Oyster REcoVERy (FOREVER) project in France. Protecting and managing the remaining populations has become a nature conservation priority because this species is able to build biogenic reefs, very specific habitats that provide many ecosystem functions and services. The availability of suitable hard substrates for larval fixation is a critical factor during this reef-building process. Although natural substrates are in short supply, production and deployment is an easy step to help oyster reef restoration. The present study was carried out to improve artificial reef design and the composition of the concrete used to build them, focusing on the impact of concrete formulation and surface texture on larval settlement in the field. Nine bio-sourced concrete formulations and ten surface textures were evaluated. The number of settled larvae counted on each concrete substrate reflected their preferences, and results demonstrated that microscale surface texture has a greater impact on recruitment than concrete formulation, with larvae preferring to settle in depressions on a rough rock-like texture and avoiding flat, horizontal and exposed areas. Physical and mechanical properties of the different formulations were also evaluated. Although they had almost no impact on recruitment, these results could be helpful for artificial reef-building (in terms of 3D design, durability, manufacture and deployment) and guide choices of materials that should be used and the proportion and granulometry of incorporated shells to obtain the best surface texture. 
PY 2021
PD APR
SO Ecological Engineering
SN 0925-8574
PU Elsevier
VL 162
UT 000632442200005
DI 10.1016/j.ecoleng.2021.106159
ID 79093
ER

EF