FN Archimer Export Format
PT J
TI Effects of Oceanic Salinity on Body Condition in Sea Snakes
BT 
AF BRISCHOUX, Francois
   ROLLAND, Virginie
   BONNET, Xavier
   CAILLAUD, Matthieu
   SHINE, Richard
AS 1:1,2;2:3;3:1;4:4;5:5;
FF 1:;2:;3:;4:PDG-ODE-DYNECO-PHYSED;5:;
C1 CEBC CNRS UPR 1934, Ctr Etud Biol Chize, F-79360 Villiers En Bois, France.
   Univ Florida, Dept Biol, Gainesville, FL 32611 USA.
   State university, Dept Biol Sci, Jonesboro, AR 72467 USA.
   IFREMER, LEADNC, F-98846 Noumea, Nouvelle Caledonie, France.
   Univ Sydney, Sch Biol Sci A08, Sydney, NSW 2006, Australia.
C2 CNRS, FRANCE
   UNIV FLORIDA, USA
   ARKANSAS STATE UNIV, USA
   IFREMER, FRANCE
   UNIV SYDNEY, AUSTRALIA
SI BREST
SE PDG-ODE-DYNECO-PHYSED
IN WOS Ifremer jusqu'en 2018
   copubli-france
   copubli-int-hors-europe
IF 3.02
TC 17
UR https://archimer.ifremer.fr/doc/00089/20064/20739.pdf
LA English
DT Article
AB Since the transition from terrestrial to marine environments poses strong osmoregulatory and energetic challenges, temporal and spatial fluctuations in oceanic salinity might influence salt and water balance (and hence, body condition) in marine tetrapods. We assessed the effects of salinity on three species of sea snakes studied by mark-recapture in coral-reef habitats in the Neo-Caledonian Lagoon. These three species include one fully aquatic hydrophiine (Emydocephalus annulatus), one primarily aquatic laticaudine (Laticauda laticaudata), and one frequently terrestrial laticaudine (Laticauda saintgironsi). We explored how oceanic salinity affected the snakes' body condition across various temporal and spatial scales relevant to each species' ecology, using linear mixed models and multimodel inference. Mean annual salinity exerted a consistent and negative effect on the body condition of all three snake species. The most terrestrial taxon (L. saintgironsi) was sensitive to salinity over a short temporal scale, corresponding to the duration of a typical marine foraging trip for this species. In contrast, links between oceanic salinity and body condition in the fully aquatic E. annulatus and the highly aquatic L. laticaudata were strongest at a long-term (annual) scale. The sophisticated salt-excreting systems of sea snakes allow them to exploit marine environments, but do not completely overcome the osmoregulatory challenges posed by oceanic conditions. Future studies could usefully explore such effects in other secondarily marine taxa such as seabirds, turtles, and marine mammals.
PY 2012
PD AUG
SO Integrative And Comparative Biology
SN 1540-7063
PU Oxford Univ Press Inc
VL 52
IS 2
UT 000306648900004
BP 235
EP 244
DI 10.1093/icb/ics081
ID 20064
ER

EF