PIXE analyses of polished otoliths for identification of anadromous whitefish in the Baltic Sea

A1 Journal article (refereed)


Internal Authors/Editors


Publication Details

List of Authors: Jan-Olof Lill, Yvette Heimbrand, Joakim Slotte, Mikael Himberg, Ann-Britt Florin, Henry Hägerstrand
Publisher: ELSEVIER SCIENCE BV
Publication year: 2015
Journal: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms
Journal acronym: NUCL INSTRUM METH B
Volume number: 363
Start page: 66
End page: 69
Number of pages: 4
ISSN: 0168-583X
eISSN: 1872-9584


Abstract

In this work we describe an application of particle-induced X-ray emission (PIXE) to the elemental analysis of polished otoliths of whitefish. Two spots on polished otoliths were irradiated; one spot in the core region of the otolith and another one close to the edge. The irradiations were performed in air with a collimated 0.5 mm proton beam. The ratio of the strontium concentrations in the two spots was used to distinguish between different ecotypes (river, sea, lake) of whitefish. Criteria on the ratios were suggested for identification of the whitefish forms. The results were compared to results of mu-beam PIXE scans as well as multi-point scans with the 0.5 mm proton beam. The measuring set-up and the results are discussed. (C) 2015 Elsevier B.V. All rights reserved.


Keywords

Baltic Sea, Otolith, PIXE, Whitefish

Last updated on 2019-21-10 at 04:01