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Large variation in lipid content, ΣPCB and δ13C within individual Atlantic salmon (Salmo salar)

Persson, M E; Larsson, Per LU ; Holmqvist, Niklas LU and Stenroth, Patrik LU (2007) In Environmental Pollution 145(1). p.131-137
Abstract
Abstract

Many studies that investigate pollutant levels, or use stable isotope ratios to define trophic level or animal origin, use different standard ways of sampling (dorsal, whole filet or whole body samples). This study shows that lipid content, ΣPCB and δ13C display large differences within muscle samples taken from a single Atlantic salmon. Lipid- and PCB-content was lowest in tail muscles, intermediate in anterior-dorsal muscles and highest in the stomach (abdominal) muscle area. Stable isotopes of carbon (δ13C) showed a lipid accumulation in the stomach muscle area and a depletion in tail muscles. We conclude that it is important to choose an appropriate sample location within an animal based on what processes are to be... (More)
Abstract

Many studies that investigate pollutant levels, or use stable isotope ratios to define trophic level or animal origin, use different standard ways of sampling (dorsal, whole filet or whole body samples). This study shows that lipid content, ΣPCB and δ13C display large differences within muscle samples taken from a single Atlantic salmon. Lipid- and PCB-content was lowest in tail muscles, intermediate in anterior-dorsal muscles and highest in the stomach (abdominal) muscle area. Stable isotopes of carbon (δ13C) showed a lipid accumulation in the stomach muscle area and a depletion in tail muscles. We conclude that it is important to choose an appropriate sample location within an animal based on what processes are to be studied. Care should be taken when attributing persistent pollutant levels or stable isotope data to specific environmental processes before controlling for within-animal variation in these variables.





Lipid content, ΣPCB and δ13C vary to a large extent within Atlantic salmon, therefore, the sample technique for individual fish is of outmost importance for proper interpretation of data. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Environmental Pollution
volume
145
issue
1
pages
131 - 137
publisher
Elsevier
external identifiers
  • wos:000242348600016
  • scopus:33750221053
ISSN
0269-7491
DOI
10.1016/j.envpol.2006.03.036
language
English
LU publication?
yes
id
a4869290-c26a-46c8-ac2c-c5b1ba92de5e (old id 162615)
date added to LUP
2007-06-27 11:26:56
date last changed
2017-01-01 07:11:08
@article{a4869290-c26a-46c8-ac2c-c5b1ba92de5e,
  abstract     = {Abstract<br/><br>
Many studies that investigate pollutant levels, or use stable isotope ratios to define trophic level or animal origin, use different standard ways of sampling (dorsal, whole filet or whole body samples). This study shows that lipid content, ΣPCB and δ13C display large differences within muscle samples taken from a single Atlantic salmon. Lipid- and PCB-content was lowest in tail muscles, intermediate in anterior-dorsal muscles and highest in the stomach (abdominal) muscle area. Stable isotopes of carbon (δ13C) showed a lipid accumulation in the stomach muscle area and a depletion in tail muscles. We conclude that it is important to choose an appropriate sample location within an animal based on what processes are to be studied. Care should be taken when attributing persistent pollutant levels or stable isotope data to specific environmental processes before controlling for within-animal variation in these variables. <br/><br>
<br/><br>
<br/><br>
Lipid content, ΣPCB and δ13C vary to a large extent within Atlantic salmon, therefore, the sample technique for individual fish is of outmost importance for proper interpretation of data.},
  author       = {Persson, M E and Larsson, Per and Holmqvist, Niklas and Stenroth, Patrik},
  issn         = {0269-7491},
  language     = {eng},
  number       = {1},
  pages        = {131--137},
  publisher    = {Elsevier},
  series       = {Environmental Pollution},
  title        = {Large variation in lipid content, ΣPCB and δ13C within individual Atlantic salmon (Salmo salar)},
  url          = {http://dx.doi.org/10.1016/j.envpol.2006.03.036},
  volume       = {145},
  year         = {2007},
}