The University of Southampton
University of Southampton Institutional Repository

Scale microchemistry as a tool to investigate the origin of wild and farmed Salmo salar

Adey, E.A., Black, K.D., Sawyer, T., Shimmield, T.M. and Trueman, C.N. (2009) Scale microchemistry as a tool to investigate the origin of wild and farmed Salmo salar Marine Ecology Progress Series, 390, pp. 225-235. (doi:10.3354/meps08161).

Record type: Article

Abstract

Atlantic salmon Salmo salar are extensively farmed throughout their natural range, and
unintentional interactions between farmed fish and wild populations have been implicated in the
decline of wild salmon. The trace element composition of salmon scales distinguishes wild from
farmed fish, and potentially provides a rapid and cheap method to assess the extent of escaped
farmed fish within a wild population. Scale samples from wild and farmed fish from sites throughout
Scotland were analysed for a large number of trace elements using inductively coupled plasma mass
spectrometry (ICP-MS). Discriminant function analysis of the resulting data classified wild and
farmed fish with 98% accuracy. Mn is identified as the element contributing most to the dissimilarity
between wild and farmed fish, with scales from farmed fish yielding significantly higher concentrations
of Mn. Scale chemistry also differed between farms. 87% of samples taken from six farm sites
around the west coast of Scotland were correctly classified to their farm of origin. Scale chemistry
provides a powerful tool to determine the origin of S. salar, despite the potential for post-depositional
change in elemental concentrations of scale bioapatite.

Full text not available from this repository.

More information

Published date: 18 September 2009
Keywords: Fish, Microchemistry, Trace element, Food forensics, Origin, Ecology, Aquaculture

Identifiers

Local EPrints ID: 68799
URI: http://eprints.soton.ac.uk/id/eprint/68799
ISSN: 0171-8630
PURE UUID: ea99dcbb-d3bd-4e83-aa02-621b05fab2a0

Catalogue record

Date deposited: 01 Oct 2009
Last modified: 19 Jul 2017 00:15

Export record

Altmetrics

Contributors

Author: E.A. Adey
Author: K.D. Black
Author: T. Sawyer
Author: T.M. Shimmield
Author: C.N. Trueman

University divisions

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×