Zobrazeno 1 - 10
of 76
pro vyhledávání: '"Jo A. Alfredsen"'
Publikováno v:
Animal Biotelemetry, Vol 12, Iss 1, Pp 1-11 (2024)
Abstract Juvenile Atlantic salmon (Salmo salar), known as post-smolt as they enter the sea, undergo an arduous migration from their natal rivers to their feeding grounds in the North Atlantic Ocean. It has become increasingly important to understand
Externí odkaz:
https://doaj.org/article/b1fe8f15e8204604930843401b4b78f6
Autor:
Eirik Svendsen, Finn Økland, Martin Føre, Lise L. Randeberg, Bengt Finstad, Rolf E. Olsen, Jo A. Alfredsen
Publikováno v:
Animal Biotelemetry, Vol 9, Iss 1, Pp 1-12 (2021)
Abstract Background Welfare challenges in salmon farming highlights the need to improve understanding of the fish’s response to its environment and rearing operations. This can be achieved by monitoring physiological responses such as heart rate (H
Externí odkaz:
https://doaj.org/article/8d5f5599761d45cf90a73fa3363cdf41
Synchrony and multimodality in the timing of Atlantic salmon smolt migration in two Norwegian fjords
Autor:
Helge B. Bjerck, Henning A. Urke, Thrond O. Haugen, Jo Arve Alfredsen, John Birger Ulvund, Torstein Kristensen
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-14 (2021)
Abstract The timing of the smolt migration of Atlantic salmon (Salmo salar) is a phenological trait increasingly important to the fitness of this species. Understanding when and how smolts migrate to the sea is crucial to understanding how salmon pop
Externí odkaz:
https://doaj.org/article/d6a535ad16f349db816055eb20e0ed0a
Autor:
Knut Tore Alfredsen, Henning Andre Urke, Torstein Kristensen, Marte Kvakland, Aage Gronningsater, Anders Gjørwad Hagen, Jo Arve Alfredsen
Publikováno v:
Animal Biotelemetry, Vol 9, Iss 1, Pp 1-14 (2021)
Abstract Background Behaviour of potential host fish during chemical treatment against the ectoparasite Gyrodactylus salaris is a vital factor in designing treatment strategies, evaluating risk factors and establishing insights into previously failed
Externí odkaz:
https://doaj.org/article/8ebe1e528695466e962be41885e02064
Publikováno v:
Frontiers in Marine Science, Vol 9 (2022)
Over the last few decades, acoustic fish telemetry has developed into a viable approach for remote monitoring of fish behaviour in the marine environment. Simultaneously, unmanned surface and underwater vehicles have found extensive use as scalable,
Externí odkaz:
https://doaj.org/article/1d4a8db8a75446e8861fd89f3bbd6616
Autor:
Turid Synnøve Aas, Trine Ytrestøyl, Torbjørn Åsgård, Kristoffer Rist Skøien, Morten Omholt Alver, Jo Arve Alfredsen
Publikováno v:
Journal of Agricultural and Marine Sciences, Vol 25, Iss 0, Pp 20-26 (2020)
In intensive salmon farming, it is common practice to spread the feed over a large surface area, assuming that spreading of the feed increases feed intake in the fish. However, the impact on the feed pellets during spreading results in feed loss due
Externí odkaz:
https://doaj.org/article/067f14cbbca64899954cbc4c6bfbfc61
Publikováno v:
Smart Animal Production ISBN: 9783031225833
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3a672d303a2108486a35155b77800daf
https://doi.org/10.1007/978-3-031-22584-0_9
https://doi.org/10.1007/978-3-031-22584-0_9
Autor:
Jo Arve Alfredsen, Turid Synnøve Aas, Morten Omholt Alver, Trine Ytrestøyl, Kristoffer Rist Skøien, Torbjørn Åsgård
Publikováno v:
Journal of Agricultural and Marine Sciences, Vol 25, Iss 0, Pp 20-26 (2020)
Journal of Agricultural and Marine Sciences
Journal of Agricultural and Marine Sciences
In intensive salmon farming, it is common practice to spread the feed over a large surface area, assuming that spreading of the feed increases feed intake in the fish. However, the impact on the feed pellets during spreading results in feed loss due
Autor:
Rolf Erik Olsen, Finn Økland, Jo Arve Alfredsen, Eirik Svendsen, Lise L. Randeberg, Bengt Finstad, Martin Føre
Publikováno v:
Animal Biotelemetry, Vol 9, Iss 1, Pp 1-12 (2021)
Animal Biotelemetry
Animal Biotelemetry
BackgroundWelfare challenges in salmon farming highlights the need to improve understanding of the fish’s response to its environment and rearing operations. This can be achieved by monitoring physiological responses such as heart rate (HR) for ind
Autor:
Henning Andre Urke, Knut Alfredsen, Torstein Kristensen, Aage Gronningsater, Anders Gjørwad Hagen, Marte Kvakland, Jo Arve Alfredsen
Publikováno v:
Animal Biotelemetry, Vol 9, Iss 1, Pp 1-14 (2021)
Animal Biotelemetry
Animal Biotelemetry
Background Behaviour of potential host fish during chemical treatment against the ectoparasite Gyrodactylus salaris is a vital factor in designing treatment strategies, evaluating risk factors and establishing insights into previously failed treatmen