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Oxygen isotope composition (δ18O) in Sandbar Shark teeth as a proxy to environment: developmental and morphofunctional variability
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Biology Education Centre.
2019 (English)Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
Abstract [en]

Oxygen isotope composition is a well-known environmental proxy, studied in both fossil and living organisms. In this research project, the ratio of δ18O was studied in the biomineral of enameloid tissue of Sandbar Shark teeth. All the sharks were kept in the tropical ocean tank of the Blackpool Sea Life Center (UK). The δ18O in 6 lateral teeth from different individuals have been measured by SIMS and had average ratio of about 21‰. 20 teeth of different morphotypes and developmental ages from one individual have been measured by TC-EA MS and showed average δ18O values of 22‰, with no significant difference between the teeth of different morphotypes and developmental ages.

Place, publisher, year, edition, pages
2019. , p. 11
Keywords [en]
Oxygen isotopes, Sandbar Shark, enameloid, shark teeth
National Category
Developmental Biology
Identifiers
URN: urn:nbn:se:uu:diva-383521OAI: oai:DiVA.org:uu-383521DiVA, id: diva2:1316759
Presentation
2019-03-20, Biology Education Centre, Norbyvägen 18D, 752 36 Uppsala, 13:45 (English)
Supervisors
Available from: 2019-06-13 Created: 2019-05-20 Last updated: 2019-06-14Bibliographically approved

Open Access in DiVA

The full text will be freely available from 2020-05-31 19:54
Available from 2020-05-31 19:54

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