Newton, M. and Barry, J. and Dodd, J.A. and Lucas, M.C. and Boylan, P. and Adams, C.E. (2016) 'Does size matter? A test of size-specific mortality in Atlantic salmon Salmo salar smolts tagged with acoustic transmitters.', Journal of fish biology., 89 (3). pp. 1641-1650.
Mortality rates of wild Atlantic salmon Salmo salar smolts implanted with acoustic transmitters were assessed to determine if mortality was size dependent. The routinely accepted, but widely debated, ‘2% transmitter mass: body mass’ rule in biotelemetry was tested by extending the transmitter burden up to 12·7% of body mass in small [mean fork length (LF) 138·3 mm, range 115–168 mm] downstream migrating S. salar smolts. Over the short timescale of emigration (range 11·9–44·5 days) through the lower river and estuary, mortality was not related to S. salar size, nor was a relationship found between mortality probability and transmitter mass: body mass or transmitter length: LF ratios. This study provides further evidence that smolt migration studies can deviate from the ‘2% rule’ of thumb, to more appropriate study-specific measures, which enables the use of fishes representative of the body size in natural populations without undue effects.
|Full text:||(AM) Accepted Manuscript|
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|Publisher Web site:||http://dx.doi.org/10.1111/jfb.13066|
|Publisher statement:||This is the accepted version of the following article: Newton, M., Barry, J., Dodd, J. A., Lucas, M. C., Boylan, P. and Adams, C. E. (2016), Does size matter? A test of size-specific mortality in Atlantic salmon Salmo salar smolts tagged with acoustic transmitters. Journal of Fish Biology, which has been published in final form at http://dx.doi.org/10.1111/jfb.13066. This article may be used for non-commercial purposes in accordance With Wiley Terms and Conditions for self-archiving.|
|Date accepted:||23 May 2016|
|Date deposited:||23 August 2016|
|Date of first online publication:||28 June 2016|
|Date first made open access:||28 June 2017|
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