@article{fdi:010074439,
  title = {{C}ircadian behaviour of {T}ectus ({T}rochus) niloticus in the southwest {P}acific inferred from accelerometry},
  author = {{J}olivet, {A}. and {C}hauvaud, {L}. and {T}hebault, {J}. and {R}obson, {A}. {A}. and {D}umas, {P}ascal and {A}mos, {G}. and {L}orrain, {A}nne},
  editor = {},
  language = {{ENG}},
  abstract = {{B}ackground: {B}ehaviour and time spent active and inactive are key factors in animal ecology, with important consequences for bioenergetics. {F}or the first time, here, we equipped the gastropod {T}ectus (= {T}rochus) niloticus with accelerometers to describe activity rhythms at two sites in the {S}outhwest {P}acific with different temperature regimes: {N}ew {C}aledonia and {V}anuatu. {R}esults: {B}ased on a 24-hour cycle, {T}. niloticus activity began at dusk and gradually stopped during the night, before sunrise. {T}his nocturnal behaviour was characterised by short (duration < 30 s), low intensity (acceleration < 0.12 g) movements and was probably associated with foraging behaviour. {W}e assumed that activity ceased once the animal was satiated. {O}ur analysis of two size groups in {V}anuatu (80-90 mm vs. 120-140 mm, basal shell diameter) revealed a size effect; smaller specimens displayed greater activity, reflected by more intense and longer movements while migrating at night toward the edge of the reef. {T}his nocturnal behaviour is not uncommon for grazing gastropods and is mainly associated with attempting to avoid visual predators whilst feeding. {C}onclusions: {T}he use of accelerometers coupled with light and temperature sensors provided detailed information on topshell behaviour and physiology under natural conditions. {T}hese data provide a foundation for identifying potential changes in the fine-scale behaviour of {T}. niloticus in response to environmental changes, which is essential in animal ecology and stock conservation.},
  keywords = {{INVERTEBRE} {AQUATIQUE} ; {RYTHME} {BIOLOGIQUE} ; {MIGRATION} ; {PHYSIOLOGIE} {ANIMALE} ; {ACCELEROMETRIE} ; {A}ctivity ; {A}ccelerometry ; 24-hour periodicity ; {T}ectus niloticus ; {F}oraging ; {M}igration ; {PACIFIQUE} ; {NOUVELLE} {CALEDONIE} ; {VANUATU}},
  booktitle = {},
  journal = {{M}ovement {E}cology},
  volume = {3},
  numero = {},
  pages = {art. 26 [12 ]},
  ISSN = {2051-3933},
  year = {2015},
  DOI = {10.1186/s40462-015-0054-5},
  URL = {https://www.documentation.ird.fr/hor/fdi:010074439},
}