Temporal stability and rates of post-depositional change in geochemical signatures of brown trout Salmo trutta scales

This study investigates temporal stability in the scale microchemistry of brown trout Salmo trutta in feeder streams of a large heterogeneous lake catchment and rates of change after migration into the lake. Laser‐ablation inductively coupled plasma mass spectrometry was used to quantify the element...

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Bibliographic Details
Published in:Journal of fish biology 2016-09, Vol.89 (3), p.1704-1719
Main Authors: Ryan, D., Shephard, S., Kelly, F. L.
Format: Article
Language:English
Subjects:
Animal Structures - chemistry
Animal Structures - metabolism
Animals
Ireland
LA-ICP-MS
lake catchment
Mass Spectrometry
Metals - analysis
Rivers - chemistry
scale microchemistry
temporal variation
Time Factors
Trout - anatomy & histology
Trout - classification
Trout - metabolism
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Summary:This study investigates temporal stability in the scale microchemistry of brown trout Salmo trutta in feeder streams of a large heterogeneous lake catchment and rates of change after migration into the lake. Laser‐ablation inductively coupled plasma mass spectrometry was used to quantify the elemental concentrations of Na, Mg, Mn, Cu, Zn, Ba and Sr in archived (1997–2002) scales of juvenile S. trutta collected from six major feeder streams of Lough Mask, County Mayo, Ireland. Water‐element Ca ratios within these streams were determined for the fish sampling period and for a later period (2013–2015). Salmo trutta scale Sr and Ba concentrations were significantly (P 
ISSN:0022-1112
1095-8649
DOI:10.1111/jfb.13081