{"id":25385,"date":"2024-01-04T10:22:20","date_gmt":"2024-01-04T09:22:20","guid":{"rendered":"https:\/\/nr.no\/en\/?post_type=bc_project&#038;p=25385"},"modified":"2025-01-09T10:46:38","modified_gmt":"2025-01-09T09:46:38","slug":"estimating-population-density-and-disease-transmission-in-salmon-farms","status":"publish","type":"bc_project","link":"https:\/\/nr.no\/en\/projects\/estimating-population-density-and-disease-transmission-in-salmon-farms\/","title":{"rendered":"Modelling population density and disease transmission in salmon farms"},"content":{"rendered":"\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:66.66%\">\n<p class=\"has-sizing-large\"><strong>We have developed models to estimate population density in salmon farms, and to predict how diseases spread among the fish. The models are also used to simulate various scenarios in order to examine how different control measures may alleviate the burden of diseases.   <\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"580\" src=\"https:\/\/nr.no\/content\/uploads\/sites\/2\/2024\/01\/simulation-magne-1024x580.jpg\" alt=\"The figure shows a simulation scenario over time using various control strategies between 2019 and 2029, highlighted in different colours. To the left of the graph is a historical records in black.\" class=\"wp-image-25416\" style=\"width:800px\" srcset=\"https:\/\/nr.no\/content\/uploads\/sites\/2\/2024\/01\/simulation-magne-1024x580.jpg 1024w, https:\/\/nr.no\/content\/uploads\/sites\/2\/2024\/01\/simulation-magne-300x170.jpg 300w, https:\/\/nr.no\/content\/uploads\/sites\/2\/2024\/01\/simulation-magne-768x435.jpg 768w, https:\/\/nr.no\/content\/uploads\/sites\/2\/2024\/01\/simulation-magne.jpg 1348w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\"><em>Reported number of ISA cases until 2018 and simulated number of cases from 2019 under six different control strategies.&nbsp;<\/em>Figure: NR.<\/figcaption><\/figure>\n\n\n\n<p>Salmon farming is one of Norway&#8217;s largest export industries, and an important supplier of seafood globally. A significant contributor to the Norwegian economy, salmon farming provides jobs and stability for numerous coastal communities in the country.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Reducing disease burden in salmon farming<\/h3>\n\n\n\n<p>The parasitic salmon louse and virus diseases such as Pancreas Disease (PD) and Infectious Salmon Anaemia (ISA) threaten the sustainability of salmon farming. In collaboration with the Norwegian Veterinary Institute (NVI), we have developed models for the spread of lice and virus diseases. We have also used the models for scenario simulation (what-if analysis) to investigate the effect of measures for reducing the burden of these diseases. Such measures include vaccination, culling of infected fish stock and relocating fish farms.&nbsp;<\/p>\n\n\n\n<p>Our models have been utilised in various projects for Norwegian authorities, aquaculture organisations, and private companies, both during and after the project period. <\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:33.33%\">\n<h3 class=\"wp-block-heading\">To learn more about this project, please contact:<\/h3>\n\n\n\t\t<div id=\"post-type-multi-block_12c5f6619abd4c768dbd0ba5c99775c9\" class=\"wp-block-post-type-multi type-manual style-card-bc_employee t2-grid\">\n\t\t\t\t\t\t\t<div class=\"t2-grid-item-col-12\">\n\t\t\t\t\t\t<a href=\"https:\/\/nr.no\/en\/employees\/magne-aldrin\/\" class='card-employee'>\n\t\t\t\t\t<figure>\n\t\t\t\t<img decoding=\"async\" src=\"https:\/\/nr.no\/content\/uploads\/sites\/2\/2024\/10\/magne-aldrin-1.jpg\" alt=\"\">\n\t\t\t<\/figure>\n\t\t\t\t<div class=\"card-employee__content\">\n\t\t\t<p class=\"card-employee__name\">Magne Aldrin<\/p>\n\t\t\t\t\t\t\t<p class=\"card-employee__position\">Research Leader<\/p>\n\t\t\t\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 24 24\" height=\"24\" width=\"24\" class=\"t2-icon t2-icon-arrowforward\" aria-hidden=\"true\" focusable=\"false\"><path d=\"M15.9 4.259a1.438 1.438 0 0 1-.147.037c-.139.031-.339.201-.421.359-.084.161-.084.529-.001.685.035.066 1.361 1.416 2.947 3l2.882 2.88-10.19.02c-8.543.017-10.206.029-10.29.075-.282.155-.413.372-.413.685 0 .313.131.53.413.685.084.046 1.747.058 10.29.075l10.19.02-2.882 2.88c-1.586 1.584-2.912 2.934-2.947 3-.077.145-.085.521-.013.66a.849.849 0 0 0 .342.35c.156.082.526.081.68-.001.066-.035 1.735-1.681 3.709-3.656 2.526-2.53 3.606-3.637 3.65-3.742A.892.892 0 0 0 23.76 12a.892.892 0 0 0-.061-.271c-.044-.105-1.124-1.212-3.65-3.742-1.974-1.975-3.634-3.616-3.689-3.645-.105-.055-.392-.107-.46-.083\"\/><\/svg>\n\t\t<\/div>\n\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\n\n\n<div class=\"wp-block-group has-primary-200-background-color has-background\">\n<p>Project: Host Density and pathogen transmission in salmon aquaculture: effects of increased production and pathogen control policies&nbsp;<\/p>\n\n\n\n<p>Partner: Norwegian Veterinary Institute (NVI)<\/p>\n\n\n\n<p>Funding: The Research Council of Norway<\/p>\n\n\n\n<p>Period: 2016 &#8211; 2020<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-group\">\n<p><strong>Further reading<\/strong><\/p>\n\n\n\n<p><a rel=\"noreferrer noopener\" href=\"10.1016\/j.epidem.2021.100508\" data-type=\"link\" data-id=\"doi:10.1016\/j.epidem.2021.100508\" target=\"_blank\">Simulated effects of increasing salmonid production on sea lice populations in Norway<\/a> &#8211; ScienceDirect, 09.10.2021.<\/p>\n\n\n\n<p><a rel=\"noreferrer noopener\" href=\"10.1016\/j.epidem.2021.100502\" target=\"_blank\">Realtime case study simulations of transmission of Pancreas Disease (PD) in Norwegian salmonid farming for disease control purpose &#8211; National Library of Medicine<\/a>, 25.09.2021.<\/p>\n\n\n\n<p><a href=\"https:\/\/doi.org\/10.1016\/j.prevetmed.2021.105360\">Evaluating effects of different control strategies for Infectious Salmon Anaemia (ISA) in marine salmonid <\/a><a rel=\"noreferrer noopener\" href=\"https:\/\/doi.org\/10.1016\/j.prevetmed.2021.105360\" target=\"_blank\">farming<\/a><a href=\"https:\/\/doi.org\/10.1016\/j.prevetmed.2021.105360\"> by scenario simulation using a transmission model<\/a> &#8211; ScienceDirect, 16.04.2021.<\/p>\n\n\n\n<p><a href=\"https:\/\/doi.org\/10.1016\/j.epidem.2018.08.001\" target=\"_blank\" rel=\"noreferrer noopener\">A partly structured model for the abundance of salmon lice in salmonid farms<\/a> &#8211; ScienceDirect, 18.08.2018.<\/p>\n<\/div>\n<\/div>\n<\/div>\n","protected":false},"featured_media":25424,"template":"","meta":{"_acf_changed":false,"_trash_the_other_posts":false,"editor_notices":[],"footnotes":""},"class_list":["post-25385","bc_project","type-bc_project","status-publish","has-post-thumbnail"],"acf":[],"_links":{"self":[{"href":"https:\/\/nr.no\/en\/wp-json\/wp\/v2\/bc_project\/25385","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/nr.no\/en\/wp-json\/wp\/v2\/bc_project"}],"about":[{"href":"https:\/\/nr.no\/en\/wp-json\/wp\/v2\/types\/bc_project"}],"version-history":[{"count":6,"href":"https:\/\/nr.no\/en\/wp-json\/wp\/v2\/bc_project\/25385\/revisions"}],"predecessor-version":[{"id":33808,"href":"https:\/\/nr.no\/en\/wp-json\/wp\/v2\/bc_project\/25385\/revisions\/33808"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nr.no\/en\/wp-json\/wp\/v2\/media\/25424"}],"wp:attachment":[{"href":"https:\/\/nr.no\/en\/wp-json\/wp\/v2\/media?parent=25385"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}