{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,18]],"date-time":"2026-08-18T01:09:28Z","timestamp":1787015368306,"version":"build-2736575974"},"reference-count":55,"publisher":"Wiley","issue":"4","license":[{"start":{"date-parts":[[2024,12,9]],"date-time":"2024-12-09T00:00:00Z","timestamp":1733702400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Journal of Fish Biology"],"published-print":{"date-parts":[[2025,4]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>\n                    In areas with high densities of salmon farming, spillover of the ectoparasitic salmon louse\n                    <jats:italic>Lepeophtheirus salmonis<\/jats:italic>\n                    poses a major threat to wild anadromous salmonids. By combining experimentally salmon louse infestation (mean\u2009\u00b1\u2009standard deviation\u2009=\u20090.25\u2009\u00b1\u20090.25 lice g\n                    <jats:sup>\u22121<\/jats:sup>\n                    fish) with acoustic telemetry, we studied the behavior of wild first\u2010time migrating sea trout\n                    <jats:italic>Salmo trutta<\/jats:italic>\n                    (\n                    <jats:italic>n<\/jats:italic>\n                    \u2009=\u200958, fork length\u2009=\u2009138\u2013204\u2009mm) from late June to September in a marine area with naturally low infestation pressure. We observed that a similar proportion of sea trout from the control and exposed groups returned to fresh water both temporarily and permanently. However, sea trout from the control group spent nearly twice the amount of time in the fjord before first freshwater detection compared to exposed individuals (32 vs. 17\u2009days), and statistical models indicated a dose\u2013response of louse burden on the timing of freshwater return. This effect was combined with evidence of negative impacts of salmon louse burden on overall marine residency. Sea trout predominantly utilized waters within their natal fjord during the marine migration, with exposed fish spending significantly more time close to their home river than sea trout from the control group. In summary, the behavioral modifications caused by salmon lice could reduce individual marine growth, increase long\u2010term mortality, and ultimately harm recruitment at the population level.\n                  <\/jats:p>","DOI":"10.1111\/jfb.15993","type":"journal-article","created":{"date-parts":[[2024,12,9]],"date-time":"2024-12-09T03:45:42Z","timestamp":1733715942000},"page":"1083-1094","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["In situ infestation of sea trout\n                    <i>Salmo trutta<\/i>\n                    with salmon louse\n                    <i>Lepeophtheirus salmonis<\/i>\n                    reveals parasite\u2010induced behavioral modifications"],"prefix":"10.1111","volume":"106","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-9456-3976","authenticated-orcid":false,"given":"John Fredrik","family":"Str\u00f8m","sequence":"first","affiliation":[{"name":"Institute of Marine Research  Troms\u00f8 Norway"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Rune","family":"Nilsen","sequence":"additional","affiliation":[{"name":"Institute of Marine Research  Troms\u00f8 Norway"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Thomas","family":"B\u00f8hn","sequence":"additional","affiliation":[{"name":"Institute of Marine Research  Troms\u00f8 Norway"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Rosa Maria","family":"Serra\u2010Llinares","sequence":"additional","affiliation":[{"name":"Institute of Marine Research  Troms\u00f8 Norway"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jofrid","family":"Skar\u00f0hamar","sequence":"additional","affiliation":[{"name":"Institute of Marine Research  Troms\u00f8 Norway"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"\u00d8rjan","family":"Karlsen","sequence":"additional","affiliation":[{"name":"Institute of Marine Research  Bergen Norway"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"P\u00e5l Arne","family":"Bj\u00f8rn","sequence":"additional","affiliation":[{"name":"Institute of Marine Research  Troms\u00f8 Norway"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2024,12,9]]},"reference":[{"key":"e_1_2_8_2_1","doi-asserted-by":"publisher","DOI":"10.1111\/jfb.15024"},{"key":"e_1_2_8_3_1","doi-asserted-by":"publisher","DOI":"10.1007\/s10236-020-01378-0"},{"key":"e_1_2_8_4_1","doi-asserted-by":"publisher","DOI":"10.1139\/f96-231"},{"key":"e_1_2_8_5_1","doi-asserted-by":"publisher","DOI":"10.1023\/A:1007354632039"},{"key":"e_1_2_8_6_1","first-page":"60","article-title":"The physiological effects of salmon lice infection on sea trout post smolts","volume":"73","author":"Bj\u00f8rn P. 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