FN Archimer Export Format
PT J
TI Functional traits unravel temporal changes in fish biomass production on artificial reefs
BT 
AF Cresson, Pierre
   Le Direach, Laurence
   Rouanet, Elodie
   Goberville, Eric
   Astruch, Patrick
   Ourgaud, Mélanie
   Harmelin-Vivien, Mireille
AS 1:1;2:2;3:2;4:3;5:2;6:4;7:2,4;
FF 1:PDG-RBE-HMMN-LRHBL;2:;3:;4:;5:;6:;7:;
C1 Ifremer, Laboratoire Resources Halieutiques Manche Mer du Nord, F-62200, Boulogne sur Mer, France
   GIS Posidonie, OSU Institut Pythéas, Aix-Marseille Univ., Campus de Luminy, F-13288, Marseille, France
   Unité Biologie des organismes et écosystèmes aquatiques (BOREA), Muséum National d’Histoire Naturelle, Sorbonne Université, Université de Caen Normandie, Université des Antilles, CNRS, IRD, CP53, 61, Rue Buffon, 75005, Paris, France
   Aix Marseille Univ., Université; de Toulon, CNRS, IRD, Mediterranean Institute of Oceanography (MIO) UM 110, F-13288, Marseille, France
C2 IFREMER, FRANCE
   GIS POSIDONIE, FRANCE
   MNHN, FRANCE
   UNIV AIX MARSEILLE, FRANCE
SI BOULOGNE
SE PDG-RBE-HMMN-LRHBL
IN WOS Ifremer UPR
   copubli-france
   copubli-univ-france
IF 2.727
TC 36
UR https://archimer.ifremer.fr/doc/00484/59577/62566.pdf
LA English
DT Article
DE ;Artificial reefs;Mediterranean sea;Fish biomass production;Isotopic functional indices
AB Artificial reefs (ARs) are deployed worldwide as they are expected to support fisheries management. While the underlying mechanisms remain widely debated, production was recently determined as the most probable cause of increases in fish biomass. Changes in fish biomass in a temperate AR system were investigated from December 2008 to November 2015 by considering seven distinct functional groups, and isotopic functional indices were used to identify how these changes may have affected organic matter (OM) fluxes. Contrasting patterns of change were observed between functional trophic groups, highlighting that combining the biomass of all species present in a community is inappropriate for assessing AR-induced effects. Benthic sedentary species predominated (>75% of the total biomass) through massive production, with a 68-fold increase in mean biomass over the study period. Mobile species tended to vary seasonally, suggesting only a slight influence of AR. Zooplanktivores biomass decreased over the 6-year period, as a possible result of changes in environmental conditions. Isotopic indices helped to reveal both the community maturation and the importance of local OM sources not only in supporting fish biomass production but also in attracting pelagic species. Our results corroborate that production and attraction are two extremes of a range of contrasting patterns and highlight the importance of considering the specific responses of functional components of fish communities to accurately describe changes in AR functioning. Functional attributes such as trophic traits, habitat use and dispersal abilities must not be overlooked as they modulate fish species responses to the deployment of man-made rocky substrates. 
PY 2019
PD MAR
SO Marine Environmental Research
SN 0141-1136
PU Elsevier BV
VL 145
UT 000463281500013
BP 137
EP 146
DI 10.1016/j.marenvres.2019.02.018
ID 59577
ER

EF