| Tekijä (t): | Niemelä, E. Hassinen, E. Høstmark, M. S. Kalske, T. H. |
|---|---|
| Aineiston nimi: | Median dates of capture and cumulative catches are indicating clear variations in the migration periods between small, medium and large salmon and in the salmon fishery practices between municipalities in Northern Norway in Finnmark |
| Verkko-osoite: | https://www.suomenkalakirjasto.fi/wp-content/uploads/2023/02/REPORT-XII-Median-dates-and-cumulative-catches-in-Finnmark-municipalities.pdf |
| Aineistolaji: | moniste |
| Asiasanat: | atlantinlohi, Finnmark, lohisaaliit, pyynti, vaelluskalat |
| Kustantaja: | Kolarctic CPC |
| Painopaikka: | |
| Vuosi: | 2023 |
| Sivumäärä: | 24 |
| ISBN/ISSN: | 978-82-94021-11-6 |
| Lehti/sarja ym.: | Kolarctic CBC – Project |
| Lisätietoa: | Report 12 (XII) Abstract Daily salmon catches for small, medium and large salmon make it possible to analyze long-term changes in the median date of capture within and between areas more precisely than the weekly catches from the accumulated data. Daily accumulation of catches for small, medium and large salmon presented with cumulative curves or with medium dates of capture makes it more accurately to observe temporal and spatial differences in the timing of catches. Medium dates of capture and cumulative catch curves are differing significantly between municipalities in Finnmark and these differences are valid for small, medium and large salmon. Generally, medium dates of capture for small, medium and large salmon are varying temporally and simultaneously in the municipalities In the same way. Temporal changes in the median dates of capture are caused by normal variations in the annual migration timing of salmon caused for example by sea temperatures. Changes in fishing restrictions like the start and closing date in fishing and allowed fishing days weekly are affecting the cumulative catch curves and thus also the medium date of capture. |
| Sijainti: | Vain verkkojulkaisuna |