Publications
NIBIOs employees contribute to several hundred scientific articles and research reports every year. You can browse or search in our collection which contains references and links to these publications as well as other research and dissemination activities. The collection is continously updated with new and historical material.
2021
Abstract
No abstract has been registered
Authors
Albert Imsland Patrick Reynolds Thor Arne Hangstad Lauri Teemu Kapari Simo Maduna Snorre Hagen Ólöf Dóra Bartels Jónsdóttir Frank Spetland Ken Ståle LindbergAbstract
To investigate the possible family influence on sea lice grazing of lumpfish on Atlantic salmon, ten families of lumpfish (N = 480) with a mean (± SD) weight of 54.8 ± 9.2 g were distributed among ten sea cages (5 × 5 × 5 m) each stocked with 400 Atlantic salmon with a mean (± SD) weight of 621.4 ± 9.2 g. All the ten cages were stocked with 48 lumpfish (12% stocking density). The stocking of cages was such that each cage consisted of two random families where full- and paternal half-sib families were randomly allocated to the different cages. There were clear differences in sea lice grazing efficacy, growth and cataract prevalence between the ten families assessed in this study. Lumpfish from families 2, 6 and 10 had the lowest mean weights but showed comparable growth rates compared to the other families throughout the study and this may be as a direct result of genetic influence. In addition, fish from these families had a significantly higher incidence of lice grazing of both L. salmonis and C. elongatus compared to the other families. Using mixed linear model to analyse the data revealed significant family and paternal effect on sea lice grazing. There was a trend for a reduction in sea lice grazing with increased size within each family. The results indicated that it was the smallest size classes of lumpfish (40–140 g) which exhibited higher sea lice grazing potential compared to the larger size classes within families. There were no clear differences in the lice grazing potential between male and female lumpfish within and between families. Overall, present findings showed that sea lice grazing of both L. salmonis and C. elongatus can be enhanced using targeted family production and if this behaviour has a genetic basis it may further enhanced through selection and targeted breeding programs.
Authors
Geir Wæhler Gustavsen Helge Berglann Elisabeth Jenssen Signe Kårstad Divina Gracia P. RodriguezAbstract
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Authors
Annika Herrero Cornelya Klutsch Katja Holmala Simo Maduna Alexander Kopatz Hans Geir Eiken Snorre HagenAbstract
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Abstract
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Authors
Živa Fišer Giovanna Aronne Tsipe Aavik Meleksen Akin Paraskevi Alizoti Filippos Aravanopoulos Gianluigi Bacchetta Manica Balant Dalibor Ballian Oz Barazani Andrea Francesca Bellia Nadine Bernhardt Magda Bou Dagher Kharrat Adrian Bugeja Douglas Michael Burkart Dušica Ćalić André Carapeto Tor Carlsen Silvia Castro Guy Colling Joana Cursach Sara Cvetanoska Cvetanka Cvetkoska Renata Ćušterevska Laura Daco Kalina Danova Aida Dervishi Gordana Djukanović Snežana Dragićević Andreas Ensslin Marianne Evju Giuseppe Fenu Ana Francisco Pedro Pablo Gallego Marta Galloni Anatolie Ganea Birgit Gemeinholzer Peter Glasnović Sandrine Godefroid Mette Thomsen Melinda Halassy Aveliina Helm Marko Hyvärinen Jasmin Joshi Amra Kazić Michael Kiehn Marcin Klisz Anneleen Kool Olav Skarpaas Goran Zdunic Elke ZippelAbstract
No abstract has been registered
Authors
Gaute Velle Lennart Edsman Charlotte Evangelista Stein Ivar Johnsen Martin Malmstrøm Trude Vrålstad Hugo de Boer Katrine Eldegard Kjetil Hindar Lars Robert Hole Johanna Järnegren Kyrre Linné Kausrud Inger Elisabeth Måren Erlend Birkeland Nilsen Eli Knispel Rueness Eva Bonsak Thorstad Anders NielsenAbstract
Source at <a href=https://vkm.no/>https://vkm.no/</a>