A comparison of muscle‐ and scale‐derived δ 13 C and δ 15 N across three life‐history stages of Atlantic salmon, Salmo salar
Abstract Stable isotope signatures were obtained from paired scale and muscle tissue samples from smolt, post‐smolt and one‐sea‐winter adult Atlantic salmon ( Salmo salar ). Post‐smolt and adult scales were separated into central and outer (marine) portions with analyses carried out on the marine gr...
Published in: | Rapid Communications in Mass Spectrometry |
---|---|
Main Authors: | , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Wiley
2008
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1002/rcm.3674 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Frcm.3674 https://onlinelibrary.wiley.com/doi/full/10.1002/rcm.3674 |
id |
crwiley:10.1002/rcm.3674 |
---|---|
record_format |
openpolar |
spelling |
crwiley:10.1002/rcm.3674 2024-06-23T07:51:21+00:00 A comparison of muscle‐ and scale‐derived δ 13 C and δ 15 N across three life‐history stages of Atlantic salmon, Salmo salar Sinnatamby, R. Niloshini Dempson, J. Brian Power, Michael 2008 http://dx.doi.org/10.1002/rcm.3674 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Frcm.3674 https://onlinelibrary.wiley.com/doi/full/10.1002/rcm.3674 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Rapid Communications in Mass Spectrometry volume 22, issue 18, page 2773-2778 ISSN 0951-4198 1097-0231 journal-article 2008 crwiley https://doi.org/10.1002/rcm.3674 2024-05-31T08:13:20Z Abstract Stable isotope signatures were obtained from paired scale and muscle tissue samples from smolt, post‐smolt and one‐sea‐winter adult Atlantic salmon ( Salmo salar ). Post‐smolt and adult scales were separated into central and outer (marine) portions with analyses carried out on the marine growth section of both life‐history stages and the central portion for the adult scales. Muscle and scale δ 13 C and δ 15 N signatures were assessed (1) to determine whether a linear relationship exists between tissue types, (2) to determine if a constant offset exists between tissue signatures across all life‐history stages, and (3) to evaluate whether underplating imparts a significant bias to life‐history scale segments that would preclude their use in retrospective analyses of any ontogenetic dietary changes between life‐history stages. Significant correlations were found to exist between muscle and scale stable isotope signatures obtained from smolts ( δ 13 C and δ 15 N) and adults ( δ 15 N). Both the muscle and the scale signatures captured the dietary shift associated with the transition from freshwater to the marine environment. Post‐smolt and adult scales were depleted relative to muscle tissue, which may be attributed to isotopic differences in amino acid composition between muscle and scale tissues. The results suggest that scales may better represent dietary carbon sources because they are not influenced by lipid dynamics. The scale, however, appears less responsive to short‐term shifts in diet relative to muscle and, therefore, must be used only to infer seasonally integrated dietary patterns for slow‐growing life‐history stages. Copyright © 2008 John Wiley & Sons, Ltd. Article in Journal/Newspaper Atlantic salmon Salmo salar Wiley Online Library Rapid Communications in Mass Spectrometry 22 18 2773 2778 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
Abstract Stable isotope signatures were obtained from paired scale and muscle tissue samples from smolt, post‐smolt and one‐sea‐winter adult Atlantic salmon ( Salmo salar ). Post‐smolt and adult scales were separated into central and outer (marine) portions with analyses carried out on the marine growth section of both life‐history stages and the central portion for the adult scales. Muscle and scale δ 13 C and δ 15 N signatures were assessed (1) to determine whether a linear relationship exists between tissue types, (2) to determine if a constant offset exists between tissue signatures across all life‐history stages, and (3) to evaluate whether underplating imparts a significant bias to life‐history scale segments that would preclude their use in retrospective analyses of any ontogenetic dietary changes between life‐history stages. Significant correlations were found to exist between muscle and scale stable isotope signatures obtained from smolts ( δ 13 C and δ 15 N) and adults ( δ 15 N). Both the muscle and the scale signatures captured the dietary shift associated with the transition from freshwater to the marine environment. Post‐smolt and adult scales were depleted relative to muscle tissue, which may be attributed to isotopic differences in amino acid composition between muscle and scale tissues. The results suggest that scales may better represent dietary carbon sources because they are not influenced by lipid dynamics. The scale, however, appears less responsive to short‐term shifts in diet relative to muscle and, therefore, must be used only to infer seasonally integrated dietary patterns for slow‐growing life‐history stages. Copyright © 2008 John Wiley & Sons, Ltd. |
format |
Article in Journal/Newspaper |
author |
Sinnatamby, R. Niloshini Dempson, J. Brian Power, Michael |
spellingShingle |
Sinnatamby, R. Niloshini Dempson, J. Brian Power, Michael A comparison of muscle‐ and scale‐derived δ 13 C and δ 15 N across three life‐history stages of Atlantic salmon, Salmo salar |
author_facet |
Sinnatamby, R. Niloshini Dempson, J. Brian Power, Michael |
author_sort |
Sinnatamby, R. Niloshini |
title |
A comparison of muscle‐ and scale‐derived δ 13 C and δ 15 N across three life‐history stages of Atlantic salmon, Salmo salar |
title_short |
A comparison of muscle‐ and scale‐derived δ 13 C and δ 15 N across three life‐history stages of Atlantic salmon, Salmo salar |
title_full |
A comparison of muscle‐ and scale‐derived δ 13 C and δ 15 N across three life‐history stages of Atlantic salmon, Salmo salar |
title_fullStr |
A comparison of muscle‐ and scale‐derived δ 13 C and δ 15 N across three life‐history stages of Atlantic salmon, Salmo salar |
title_full_unstemmed |
A comparison of muscle‐ and scale‐derived δ 13 C and δ 15 N across three life‐history stages of Atlantic salmon, Salmo salar |
title_sort |
comparison of muscle‐ and scale‐derived δ 13 c and δ 15 n across three life‐history stages of atlantic salmon, salmo salar |
publisher |
Wiley |
publishDate |
2008 |
url |
http://dx.doi.org/10.1002/rcm.3674 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Frcm.3674 https://onlinelibrary.wiley.com/doi/full/10.1002/rcm.3674 |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
Rapid Communications in Mass Spectrometry volume 22, issue 18, page 2773-2778 ISSN 0951-4198 1097-0231 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/rcm.3674 |
container_title |
Rapid Communications in Mass Spectrometry |
container_volume |
22 |
container_issue |
18 |
container_start_page |
2773 |
op_container_end_page |
2778 |
_version_ |
1802642417456775168 |