AN ATTEMPT TO ANALYZE FISH OTOLITHS BY IN-AIR PIXE

Authors
ARAI N SAKAMOTO W MAEDA K
Citation
N. Arai et al., AN ATTEMPT TO ANALYZE FISH OTOLITHS BY IN-AIR PIXE, Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms, 109, 1996, pp. 341-344
Citations number
13
Categorie Soggetti
Physics, Nuclear","Nuclear Sciences & Tecnology","Instument & Instrumentation
Journal title
Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms → ACNP
ISSN journal
0168583X
Volume
109
Year of publication
1996
Pages
341 - 344
Database
ISI
SICI code
0168-583X(1996)109:<341:AATAFO>2.0.ZU;2-B
Abstract
Fish otoliths are generally composed of aragonite crystals. A large nu mber of trace elements such as Sr, Fe, Mn, and Zn are included in the crystal. Especially, Sr enters the crystals much among those metals in the process of precipitation of the calcium carbonate. In addition, i t is expected that Sr/Ca concentration ratios can indicate ambient tem perature. In-air PIXE was adopted to analyze trace elements in otolith s of juvenile red sea bream. Preliminary results indicated that the Sr /Ca ratios of the otoliths increased proportional to rearing temperatu re and that PIXE was a fast and convenient technique for determination of several elements in fish otoliths.