Calcium deposition and otolith check formation during periods of stress in coho salmon, Oncorhynchus kisutch

Steven Campana*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

66 Citations (Scopus)

Abstract

1. 1. Periods of stress can disrupt daily growth increment formation on a fish otolith, producing a check (discontinuity). Calcium-45 was used to monitor calcium deposition on the sagittae of coho salmon, Oncorhynchus kisutch, during periods of check formation. 2. 2. 45Ca deposition on the otolith continued for 12 hr after transfer from 45Ca water. 3. 3. Stress applied during 45Ca immersion reduced 45Ca deposition. 4. 4. Stress applied immediately after transfer from 45Ca water had no effect on 45Ca deposition. 5. 5. Stress indirectly disrupted 45Ca deposition on the otolith through a reduction in branchial uptake of calcium. 6. 6. Stress did not result in resorption of otolith calcium.

Original languageEnglish
Pages (from-to)215-220
Number of pages6
JournalComparative Biochemistry and Physiology -- Part A: Physiology
Volume75
Issue number2
DOIs
Publication statusPublished - 1983

Bibliographical note

Copyright © 1983 Published by Elsevier Inc.

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