Skip Navigation

ICES Journal of Marine Science: Journal du Conseil 2005 62(4):808-817; doi:10.1016/j.icesjms.2005.01.016
This Article
Right arrow Full Text Freely available
Right arrow FREE Full Text (PDF) Freely available
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Alert me to new issues of the journal
Right arrow Add to My Personal Archive
Right arrow Download to citation manager
Right arrowRequest Permissions
Google Scholar
Right arrow Articles by Thorley, J.L.
Right arrow Articles by Youngson, A.F.
Right arrow Search for Related Content
PubMed
Right arrow Articles by Thorley, J.L.
Right arrow Articles by Youngson, A.F.
Social Bookmarking
Add to CiteULike   Add to Connotea   Add to Del.icio.us  
What's this?

© 2005 International Council for the Exploration of the Sea

Congruence between automatic fish counter data and rod catches of Atlantic salmon (Salmo salar) in Scottish rivers

J.L. Thorleya,*, D.M.R. Eatherleya, A.B. Stephenb, I. Simpsonc, J.C. MacLeanc and A.F. Youngsona

a FRS Freshwater Laboratory Faskally, Pitlochry, Perthshire, PH16 5LB, Scotland, UK
b Scottish and Southern Energy plc Clunie Power Station, Pitlochry, Perthshire, PH16 5NF, Scotland, UK
c FRS Freshwater Laboratory Field Station, 16 River Street, Montrose, DD10 8DL, Scotland, UK

*Correspondence to J. L. Thorley: tel: +44 1224 294444; fax: +44 1796 473523. e-mail: j.thorley{at}marlab.ac.uk.

The potential utility of rod catch and automatic fish counter data as measures of Atlantic salmon (Salmo salar) abundance in Scottish rivers was assessed. The trend (long-term) and residual (short-term) variation in the net annual count for 12 counters were compared with the trend and residual variation in either the annual or spring (February–May) rod catch, as appropriate, for the fisheries district in which the counter is located. Trends were fitted using a cubic smoothing spline and compared using reference bands. In eight of the 12 short-term comparisons, the residuals were significantly correlated. The four incongruent short-term comparisons involved the shortest time-series (≤12 years) or lowest rod catches. In eight of the 12 long-term comparisons, the trends fell within the reference bands in 50% or more of the years. Rod catch and counter data both contain useful information about Atlantic salmon abundance, albeit on different temporal and spatial scales, which should be integrated into assessment schemes.

Keywords: Atlantic salmon, automatic fish counter, reference band, rod catch, Salmo salar

Received 25 May 2004; accepted 17 January 2005.


Add to CiteULike CiteULike   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us    What's this?


This article has been cited by other articles:


Home page
 ICES J. Mar. Sci.Home page
J. S. Renfree, S. A. Hayes, and D. A. Demer
Sound-scattering spectra of steelhead (Oncorhynchus mykiss), coho (O. kisutch), and Chinook (O. tshawytscha) salmonids
ICES J. Mar. Sci., July 1, 2009; 66(6): 1091 - 1099.
[Abstract] [Full Text] [PDF]


Disclaimer: Please note that abstracts for content published before 1996 were created through digital scanning and may therefore not exactly replicate the text of the original print issues. All efforts have been made to ensure accuracy, but the Publisher will not be held responsible for any remaining inaccuracies. If you require any further clarification, please contact our Customer Services Department.