Vol. 12 No. 1 (2017)
Articles

Marking techniques in the Marbled Newt (<em>Triturus marmoratus</em>): PIT-Tag and tracking device implant protocols

Hugo Le Chevalier
CNRS, ENFA, UMR5174 EDB (Laboratoire Evolution et Diversité Biologique), Université Paul Sabatier, Toulouse, France
Olivier Calvez
Station d’Ecologie Théorique et Expérimentale CNRS, UMR 5321
Albert Martinez-Silvestre
Centre de Recuperació d'Amfibis i Rèptils de Catalunya CRARC
Damien Picard
GECCO Groupe Ecologie et Conservation des Vertébrés, Université d’Angers
Sandra Guérin
GECCO Groupe Ecologie et Conservation des Vertébrés, Université d’Angers
Francis Isselin-Nondedeu
Departement Aménagement et Environnement Ecole Polytechnique de l’Université François Rabelais de Tours, CNRS ; UMR 7324 CITERES équipe IPAPE
Alexandre Ribéron
CNRS, ENFA, UMR5174 EDB (Laboratoire Evolution et Diversité Biologique), Université Paul Sabatier, Toulouse, France
Audrey Trochet
CNRS, ENFA, UMR5174 EDB (Laboratoire Evolution et Diversité Biologique), Université Paul Sabatier, Toulouse, France
Published June 30, 2017
How to Cite
Le Chevalier, H., Calvez, O., Martinez-Silvestre, A., Picard, D., Guérin, S., Isselin-Nondedeu, F., Ribéron, A., & Trochet, A. (2017). Marking techniques in the Marbled Newt (<em>Triturus marmoratus</em&gt;): PIT-Tag and tracking device implant protocols. Acta Herpetologica, 12(1), 79-88. https://doi.org/10.13128/Acta_Herpetol-19158

Abstract

Individual marking has become essential for studying population dynamics and ecological requirements. However, marking small-bodied species such as amphibians is becoming a challenge in the last decades. Amphibian surveys may require to mark manually individuals, using toe clipping, polymers and pigments, or passive integrated transponders (PIT-tags). Even if ethics committees have recently recommend avoiding toe clipping in amphibians, the use of PIT-tags led to controversial results because low tag retention reported in some studies. Here, we describe a protocol of potentially life-long PIT-tag marking in a protected species, the marbled newt Triturus marmoratus. In addition, we also detailed a second procedure of surgery for the implantation of transmitters needed in radio-tracking surveys. During both procedures, we found that the newt phase (either aquatic or terrestrial) strongly affected the anesthesia duration. Indeed, newts in aquatic phase were more quickly anesthetized than newts under terrestrial phase. We then recommend to pay attention of this physiological particularity when performing this kind of procedure. Improving our knowledge on ecological requirements and population dynamics of this species is crucial for management and conservation plans, and could be extended to other large newts.

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