Atomic emission and proton microprobe studies of the ion content of otoliths of chinook salmon aimed at recovering the temperature life history of individuals.
Atomic emission experiments on whole otoliths of the chinook salmon (Oncorhynchus tshawytcha) show that a statistically significant relationship exists between otolith ion content (Fr, Zn, Mn, Na, Sr, P), ambient temperature, body length and otolith weight amongst individuals maintained under controlled diet and water conditions. Direct proton microprobe studies confirm these results and suggest that it may be possible to recover the temperature life history of individual fishes from the otolith.
D000375:Aging; D000818:Animals; D001831:Body Temperature; D004577:Electron Probe Microanalysis / Q000379:methods; D007477:Ions; D008670:Metals / Q000032:analysis*; D010037:Otolithic Membrane / Q000033:anatomy & histology / Q000254:growth & development*; D012444:Saccule and Utricle / Q000254:growth & development*; D012474:Salmon / Q000254:growth & development*; D013696:Temperature
D007477:Ions; D008670:Metals