FN Archimer Export Format
PT J
TI Sharks surf the slope: Current updrafts reduce energy expenditure for aggregating marine predators
BT 
AF Papastamatiou, Yannis P.
   Iosilevskii, Gil
   Di Santo, Valentina
   Huveneers, Charlie
   Hattab, Tarek
   Planes, Serge
   Ballesta, Laurent
   Mourier, Johann
AS 1:1;2:2;3:3;4:4;5:5;6:6,7;7:8;8:9;
FF 1:;2:;3:;4:;5:PDG-RBE-MARBEC-LHM;6:;7:;8:;
C1 Institute of the Environment Department of Biological Sciences Florida International University North Miami FL ,USA
   Faculty of Aerospace Engineering Technion Haifa ,Israel
   Division of Functional Morphology Department of Zoology Stockholm University Stockholm ,Sweden
   College of Science and Engineering Flinders University Bedford Park South Australia ,Australia
   MARBEC, Univ Montpellier CNRS IFREMER IRD Sète, France
   PSL Research University EPHE‐UPVD‐CNRS USR 3278 CRIOBE Perpignan ,France
   Laboratoire d'Excellence “CORAIL” USR 3278 CNRS‐EPHE‐UPVD CRIOBE Perpignan ,France
   Andromede Oceanology Carnon ,France
   MARBEC, Univ Montpellier CNRS IFREMER IRD Sète, France
C2 UNIV FLORIDA INT, USA
   AEROSPACE ENGINEERING, ISRAEL
   UNIV STOCKOLM, SWEDEN
   UNIV FLINDERS, AUSTRALIA
   IFREMER, FRANCE
   UNIV PERPIGNAN, FRANCE
   UNIV PERPIGNAN, FRANCE
   ANDROMEDE OCEANOLOGIE, FRANCE
   IRD, FRANCE
SI SETE
SE PDG-RBE-MARBEC-LHM
UM MARBEC
IN WOS Ifremer UMR
   WOS Cotutelle UMR
   copubli-france
   copubli-p187
   copubli-europe
   copubli-univ-france
   copubli-int-hors-europe
IF 5.608
TC 18
UR https://archimer.ifremer.fr/doc/00699/81095/89493.pdf
LA English
DT Article
DE ;biologging;energy seascape;grey reef sharks;tides
AB An animal's energy landscape considers the power requirements associated with residing in or moving through habitats. Within marine environments, these landscapes can be dynamic as water currents will influence animal power requirements and can change rapidly over diel and tidal cycles. In channels and along slopes with strong currents, updraft zones may reduce energy expenditure of negatively buoyant fishes that are also obligate swimmers. Despite marine predators often residing within high-current area, no study has investigated the potential role of the energetic landscape in driving such habitat selectivity. Over 500 grey reef sharks Carcharhinus amblyrhynchos reside in the southern channel of Fakarava Atoll, French Polynesia. We used diver observations, acoustic telemetry and biologging to show that sharks use regions of predicted updrafts and switch their core area of space use based on tidal state (incoming versus outgoing). During incoming tides, sharks form tight groups and display shuttling behaviour (moving to the front of the group and letting the current move them to the back) to maintain themselves in these potential updraft zones. During outgoing tides, group dispersion increases, swimming depths decrease and shuttling behaviours cease. These changes are likely due to shifts in the nature and location of the updraft zones, as well as turbulence during outgoing tides. Using a biomechanical model, we estimate that routine metabolic rates for sharks may be reduced by 10%–15% when in updraft zones. Grey reef sharks save energy using predicted updraft zones in channels and ‘surfing the slope’. Analogous to birds using wind-driven updraft zones, negatively buoyant marine animals may use current-induced updraft zones to reduce energy expenditure. Updrafts should be incorporated into dynamic energy landscapes and may partially explain the distribution, behaviour and potentially abundance of marine predators. 
PY 2021
PD OCT
SO Journal Of Animal Ecology
SN 0021-8790
PU Wiley
VL 90
IS 10
UT 000661020500001
BP 2302
EP 2314
DI 10.1111/1365-2656.13536
ID 81095
ER

EF