Carbon and Oxygen Isotope Records from Tridacna derasa Shells: Toward Establishing a Reliable Proxy for Sea Surface Environments

• Published in: PloS one Vol. 11; no. 6; p. e0157659
• Main Authors: Yamanashi, Junpei, Takayanagi, Hideko, Isaji, Ayaka, Asami, Ryuji, Iryu, Yasufumi
• Format: Journal Article
• Language: English
• Published: United States Public Library of Science 21.06.2016; Public Library of Science (PLoS)
• Subjects: Analysis; Animal Shells - chemistry; Animals; Aragonite; Archives & records; Banding; Biology and Life Sciences; Bivalvia; Bivalvia - chemistry; Calcification; Carbon; Carbon - analysis; Carbon dioxide; Carbon Isotopes; Chemical analysis; Climate; Climate change; Coral reefs; Cross sections; Earth Sciences; Geography; Geology; Growth models; Islands; Isotopes; Japan; Medicine and Health Sciences; Metabolism; Mollusca; Mytilus edulis; Oceans and Seas; Ontogeny; Oxygen; Oxygen - analysis; Oxygen Isotopes; Paleontology; Photosynthesis; Physical Sciences; Salinity; Science; Seasonal variability; Seawater; Shells; Studies; Surface Properties; Temperature; Tridacna derasa; Water analysis; Ryukyu Islands; Japan

We report the carbon (δ13C) and oxygen (δ18O) isotope records of three modern Tridacna derasa shells from Ishigaki-jima, southwestern Japan. The high-resolution δ13C profiles of samples from the inner shell layer on cross-sections fall within similar narrow ranges and display no regular variations o...