ISSN:
1095-8649
Source:
Blackwell Publishing Journal Backfiles 1879-2005
Topics:
Biology
Notes:
Over 25 years rod catches of Atlantic salmon Salmo salar increased proportionately as stock size increased (r2=0·581, P〈0·001), with no overall trend between exploitation rate and stock size (r2=0·016, P〉0·5). On a 15 year sub-set of these data annual effort (P=0·804) and flow (P=0·339) had little significance relative to stock size (P〈0·01) on variation in rod catches. Stock size, time, effort and flows had no influence on inter-annual variation of rod exploitation rate (r2=0·094, P=0·880). Pairwise correlation between variables confirmed these results. In 1998, weekly effort contributed significantly to overall catch variation (P〈0·001), while weekly flow did not (P=0·438). These results are discussed in relation to the utility of rod catch data for deriving estimates of stock for spawning target compliance purposes.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1111/j.1095-8649.2001.tb00511.x
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