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Auteur (up) Bonola, M.; Girondot, M.; Robin, J.-P.; Martin, J.; Siegwalt, F.; Jeantet, L.; Lelong, P.; Grand, C.; Chambault, P.; Etienne, D.; Gresser, J.; Hielard, G.; Arque, A.; Regis, S.; Lecerf, N.; Frouin, C.; Lefebvre, F.; Sutter, E.; Vedie, F.; Barnerias, C.; Thieulle, L.; Bordes, R.; Guimera, C.; Aubert, N.; Bouaziz, M.; Pinson, A.; Flora, F.; Duru, M.; Benhalilou, A.; Murgale, C.; Maillet, T.; Andreani, L.; Campistron, G.; Sikora, M.; Rateau, F.; George, F.; Eggenspieler, J.; Woignier, T.; Allenou, J.-P.; Louis-Jean, L.; Chanteur, B.; Beranger, C.; Crillon, J.; Brador, A.; Habold, C.; Maho, Y.L.; Chevallier, D. doi  openurl
  Titre Fine scale geographic residence and annual primary production drive body condition of wild immature green turtles (Chelonia mydas) in Martinique Island (Lesser Antilles) Type Article scientifique
  Année 2019 Publication Revue Abrégée Biol. Open  
  Volume 8 Numéro 12 Pages bio048058  
  Mots-Clés abundance; Biometry; Body condition; Body mass; condition indexes; fitness; Green turtles; growth-rates; Juveniles; length-weight relationships; mass; patterns; regressions; sea-turtles; size  
  Résumé The change of animal biometrics (body mass and body size) can reveal important information about their living environment as well as determine the survival potential and reproductive success of individuals and thus the persistence of populations. However, weighing individuals like marine turtles in the field presents important logistical difficulties. In this context, estimating body mass (BM) based on body size is a crucial issue. Furthermore, the determinants of the variability of the parameters for this relationship can provide information about the quality of the environment and the manner in which individuals exploit the available resources. This is of particular importance in young individuals where growth quality might be a determinant of adult fitness. Our study aimed to validate the use of different body measurements to estimate BM, which can be difficult to obtain in the field, and explore the determinants of the relationship between BM and size in juvenile green turtles. Juvenile green turtles were caught, measured, and weighed over 6 years (2011 2012; 2015 2018) at six bays to the west of Martinique Island (Lesser Antilles). Using different datasets from this global database, we were able to show that the BM of individuals can be predicted from body measurements with an error of less than 2%. We built several datasets including different morphological and time-location information to test the accuracy of the mass prediction. We show a yearly and north – south pattern for the relationship between BM and body measurements. The year effect for the relationship of BM and size is strongly correlated with net primary production but not with sea surface temperature or cyclonic events. We also found that if the bay locations and year effects were removed from the analysis, the mass prediction degraded slightly but was still less than 3% on average. Further investigations of the feeding habitats in Martinique turtles are still needed to better understand these effects and to link them with geographic and oceanographic conditions.  
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  Auteur institutionnel Thèse  
  Editeur Lieu de Publication Éditeur  
  Langue English Langue du Résumé Titre Original  
  Éditeur de collection Titre de collection Titre de collection Abrégé  
  Volume de collection Numéro de collection Edition  
  ISSN 2046-6390 ISBN Médium  
  Région Expédition Conférence  
  Notes WOS:000506171400016 Approuvé pas de  
  Numéro d'Appel MARBEC @ isabelle.vidal-ayouba @ collection 2697  
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