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Stable Isotopes in Barnacles as a Tool to Understand Green Sea Turtle (Chelonia Mydas) Regional Movement Patterns : Volume 12, Issue 6 (23/03/2015)

By Detjen, M.

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Book Id: WPLBN0003985711
Format Type: PDF Article :
File Size: Pages 15
Reproduction Date: 2015

Title: Stable Isotopes in Barnacles as a Tool to Understand Green Sea Turtle (Chelonia Mydas) Regional Movement Patterns : Volume 12, Issue 6 (23/03/2015)  
Author: Detjen, M.
Volume: Vol. 12, Issue 6
Language: English
Subject: Science, Biogeosciences, Discussions
Collections: Periodicals: Journal and Magazine Collection, Copernicus GmbH
Publication Date:
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications


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Sterling, E., Gómez, A., & Detjen, M. (2015). Stable Isotopes in Barnacles as a Tool to Understand Green Sea Turtle (Chelonia Mydas) Regional Movement Patterns : Volume 12, Issue 6 (23/03/2015). Retrieved from

Description: Department of Ecology, Evolution and Environmental Biology, Columbia University, 1200 Amsterdam Avenue, New York, NY 10027, USA. Sea turtles are migratory animals that travel long distances between their feeding and breeding grounds. Traditional methods for researching sea turtle migratory behavior have important disadvantages, and the development of alternatives would enhance our ability to monitor and manage these globally endangered species. Here we report on the isotope signatures in green sea turtle (Chelonia mydas) barnacles (Platylepas sp.) and discuss their potential relevance as tools with which to study green sea turtle migration and habitat use patterns. We analyzed oxygen (δ18O) and carbon (δ13C) isotope ratios in barnacle calcite layers from specimens collected from green turtles captured at the Palmyra Atoll National Wildlife Refuge (PANWR) in the Central Pacific. Carbon isotopes were not informative in this study. However, the oxygen isotope results suggest likely regional movement patterns when mapped onto a predictive oxygen isotope map of the Pacific. Barnacle proxies could therefore complement other methods in understanding regional movement patterns, informing more effective conservation policy that takes into account connectivity between populations.

Stable isotopes in barnacles as a tool to understand green sea turtle (Chelonia mydas) regional movement patterns

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