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- Title
Effect of salinity on strontium:calcium ratios in the otoliths of Sakhalin taimen, Hucho perryi.
- Authors
Arai, Takaomi
- Abstract
In order to determine the salinity effect on otolith strontium (Sr):calcium (Ca) ratios, the Sr and Ca contents of otoliths of Sakhalin taimen, Hucho perryi, reared for 60 days in four salinities (freshwater, one-third seawater, two-thirds seawater, and full seawater) were examined. The Ca and Sr contents and the resultant Sr:Ca ratios in the rearing water increased linearly with salinity. Otolith Sr:Ca ratios were also found to be positively correlated with salinity. However, the Sr:Ca did not correspond to temperature fluctuations during the experiment. These results indicate that Sr:Ca ratios in otoliths can be used to reconstruct the migratory history of the fish by differentiating when the fish migrated between freshwater and seawater.
- Subjects
FISHES; SALINITY; CALCIUM; STRONTIUM; OTOLITHS; ANIMAL migration
- Publication
Fisheries Science, 2010, Vol 76, Issue 3, p451
- ISSN
0919-9268
- Publication type
Article
- DOI
10.1007/s12562-010-0235-5