2021
DOI: 10.18261/issn.1504-3118-2021-04-06
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Ørretens viktigste næringsdyr på Hardangervidda

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“…Temperature was early identified as a controlling factor in marine fisheries (Rollefsen 1948), and with a significant positive relationship between recruitment and temperature for species like cod Gadus morhua L. 1758, haddock Melanogrammus aeglefinus L. 1758 and herring Clupea harengus L. 1758 (Bogstad et al 2013). Although at a smaller scale compared to the marine fisheries, the low annual brown trout yield obtained from lakes on Hardangervidda during the 1920s and the first years of the 1930s, followed by a substantial increase in yields during the next years, have been explained by changes in snow depth and summer temperatures (Sunde 1937;Rognerud et al 2003;Qvenild 2004). These environmental conditions influence…”
Section: Discussionmentioning
confidence: 99%
“…Temperature was early identified as a controlling factor in marine fisheries (Rollefsen 1948), and with a significant positive relationship between recruitment and temperature for species like cod Gadus morhua L. 1758, haddock Melanogrammus aeglefinus L. 1758 and herring Clupea harengus L. 1758 (Bogstad et al 2013). Although at a smaller scale compared to the marine fisheries, the low annual brown trout yield obtained from lakes on Hardangervidda during the 1920s and the first years of the 1930s, followed by a substantial increase in yields during the next years, have been explained by changes in snow depth and summer temperatures (Sunde 1937;Rognerud et al 2003;Qvenild 2004). These environmental conditions influence…”
Section: Discussionmentioning
confidence: 99%