{"id":129816,"date":"2025-05-07T15:45:05","date_gmt":"2025-05-07T15:45:05","guid":{"rendered":"https:\/\/teknomers.com\/en\/think-they-know-why-the-worlds-largest-herring-population-stopped-spawning-at-more-news-more-og-romsdal-local-news-tv-and-radio\/"},"modified":"2025-05-07T15:45:07","modified_gmt":"2025-05-07T15:45:07","slug":"think-they-know-why-the-worlds-largest-herring-population-stopped-spawning-at-more-news-more-og-romsdal-local-news-tv-and-radio","status":"publish","type":"post","link":"https:\/\/teknomers.com\/en\/think-they-know-why-the-worlds-largest-herring-population-stopped-spawning-at-more-news-more-og-romsdal-local-news-tv-and-radio\/","title":{"rendered":"Think they know why the world’s largest herring population stopped spawning at M\u00f8re – news M\u00f8re og Romsdal – local news, TV and radio"},"content":{"rendered":"\n

Summary of the case The world’s largest herring population has moved 800 kilometers over the past five years to spawn in Lofoten in the city for the Moorish coast. Researchers believe the cause is a “collective memory loss” due to overfishing of older fish, which usually transfers knowledge of spawning grounds to younger generations. Silda, who was born in 2016, established a new migration pattern, and the older fish followed. The relocation can have consequences for ecosystems along the coast and for herring itself, since conditions are better on M\u00f8re. The researchers hope that herring can return to M\u00f8re if there is more fish in the stock. The summary is created by a Ki-service from Openai. The content is quality assured by journalists from news before publishing. It is not just the tourists who draw to Lofoten. For the past five years, millions of herring have also dropped tender, and rather stopped further north to make children, ie spawning. Marine researcher Aril Slotte says the cause is what he calls a “collective memory loss”. – The oldest fish are usually driven with social competence transfer to the younger ones. When new recruits come in, they simply depend on meeting some of the elderly who sit on the knowledge, so that they can learn where it is wise to walk. One overfishing, especially directed at old fish, has meant that there have been few left from the oldest generations. – There were not enough teachers left to show the road. There are so many of the young people who do not sit with knowledge, that they simply control the stimism, says Slotte. Thus, one of the great mysteria along the coast in recent years can be solved. Marine researcher Aril Slotte says the new report provides important insights on the herring stock. Photo: Kjartan M\u00e6stad \/ Institute of Marine Research Braut Over 100 years old tradition For over 100 years, the herring stock has sparked outside the Moorish coast. But in 2021 it changed abruptly and quite unexplained. Now researchers at the Institute of Marine Research and colleagues in Iceland and the Faroe Islands they may have solved the riddle. The study is published in the acclaimed journal Nature. – We believe that this is an important issue that can have value for other parts of the world, where there are also populations that go in shoal, says Slotte. You can read the entire study here: New research: Silda moved north over research is based on data from the world’s largest herring stock, Norwegian spring spawning herring, from 1988-2024. Established new pattern It is Silda that was born in 2016 that is behind the new trend of heading towards Lofoten and further north to spawn. According to the study, the large year class from this year made somewhat absolutely groundbreaking: They established their own migration pattern. In these areas off the coast of Nordland, the Institute of Marine Research found spawning herring during the voyage that ended in February in 2024. The further north the younger was the spawning herring. Illustration: The Institute of Marine Research in 2021 were the grown -up and mature, but lacked “olds” with experience enough to know where it was best to go. In the years 2017 to 2022, there was overfishing, and this went especially beyond the oldest fish. In the end, there were so few of the old ones that they simply raised themselves with the young people, says Slotte. – And then the old people left their famous spawning grounds on M\u00f8re and began to spawn at Lofoten in the city, where the young people had established themselves. Those who fish on the stock may thus have helped to cause changes in the migration pattern. He thinks the researchers have a responsibility to advise in the future whether the fishing should go to preserve the culture of the stock. The newcomers in the herring stock are basically dependent on the transfer of competence from the elderly to learn where it is best to spawn and obtain food. Photo: Are Salthaug \/ Institute of Marine Research can have consequences the move to Lofoten is hardly the smartest herring. According to the researchers, conditions are best on M\u00f8re – and in addition, the change raws ecosystems along the coast. – It applies to everyone who depends on this spawning, such as the puffins who nest on the bird mountain on R\u00f8st. And then it can go beyond the stock itself. We think it is best for it to spawn on M\u00f8re where conditions are very good. Have marked the change Sigurd Ved\u00f8y in the Norwegian Herring Sales Team says it is not abnormal with changes in spawning patterns when looking at a longer time perspective. – When it comes to the stock, it turns all the time, but the development looks positive now. It has been good year classes in recent years, so we are excited about how it develops. Can return the researchers have a hope that herring can return to M\u00f8re. But they don’t know when it can happen. – This spawning field has been important for the last 100 years. So it is likely that there may be a development if you get new recruitment to the stock and that there will be more fish, says Slotte. According to him, the stock tends to spread over a larger area if it increases. – Then they can come to the south again to the historically important spawning grounds on M\u00f8re. The research is based on many different types of data, between others: catch data, acoustic research, marking of fish and biological data. Photo: Leif N\u00f8ttestad Published 07.05.2025, at. 17.01 Updated 07.05.2025, at. 17.19
\n

\n
ttn-69 <\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

Summary of the case The world’s largest herring population has moved 800 kilometers over the past five years to spawn in Lofoten in the city for the Moorish coast. Researchers believe the cause is a “collective memory loss” due to overfishing of older fish, which usually transfers knowledge of spawning grounds to younger generations. Silda, […]<\/p>\n","protected":false},"author":1,"featured_media":129817,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[6333,1549,151,701,16,974,152,702,6962,866,166],"class_list":["post-129816","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-general","tag-herring","tag-largest","tag-local","tag-more","tag-news","tag-population","tag-radio","tag-romsdal","tag-spawning","tag-stopped","tag-worlds"],"_links":{"self":[{"href":"https:\/\/teknomers.com\/en\/wp-json\/wp\/v2\/posts\/129816","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/teknomers.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/teknomers.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/teknomers.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/teknomers.com\/en\/wp-json\/wp\/v2\/comments?post=129816"}],"version-history":[{"count":0,"href":"https:\/\/teknomers.com\/en\/wp-json\/wp\/v2\/posts\/129816\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/teknomers.com\/en\/wp-json\/wp\/v2\/media\/129817"}],"wp:attachment":[{"href":"https:\/\/teknomers.com\/en\/wp-json\/wp\/v2\/media?parent=129816"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/teknomers.com\/en\/wp-json\/wp\/v2\/categories?post=129816"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/teknomers.com\/en\/wp-json\/wp\/v2\/tags?post=129816"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}