{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,30]],"date-time":"2026-07-30T22:57:35Z","timestamp":1785452255174,"version":"3.56.0"},"reference-count":42,"publisher":"Wiley","issue":"8","license":[{"start":{"date-parts":[[2014,1,15]],"date-time":"2014-01-15T00:00:00Z","timestamp":1389744000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"DOI":"10.13039\/501100000396","name":"Technology Strategy Board","doi-asserted-by":"crossref","id":[{"id":"10.13039\/501100000396","id-type":"DOI","asserted-by":"crossref"}]}],"content-domain":{"domain":["scijournals.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Pest Management Science"],"published-print":{"date-parts":[[2014,8]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>BACKGROUND<\/jats:title><jats:p><jats:bold>Cleaner\u2010fish (wrasse, Labridae) are increasingly deployed within the Atlantic salmon (<jats:italic>Salmo salar<\/jats:italic> L.) industry as a biological control against sea\u2010lice (<jats:italic>Lepeophtheirus salmonis<\/jats:italic> Kr\u00f8yer). Two tank\u2010based trials were performed to test the effect of farmed ballan wrasse (<jats:italic>Labrus bergylta<\/jats:italic> Ascanius) body mass and supplementary feeding on the delousing of Atlantic salmon post\u2010smolts with an initial infection level of \u223c12 lice salmon<jats:sup>\u22121<\/jats:sup> and a \u223c5% wrasse:salmon ratio<\/jats:bold>.<\/jats:p><\/jats:sec><jats:sec><jats:title>RESULTS<\/jats:title><jats:p><jats:bold>Sea\u2010louse levels below 0.5 lice salmon<jats:sup>\u22121<\/jats:sup> were obtained within 84\u2009h, and preferential preying upon larger motile stages was found. The wrasse body mass and the availability of fresh, opened blue mussels (<jats:italic>Mytilus edulis<\/jats:italic> L.) did not significantly affect delousing efficiency. The functional predator response was linear, showing no minimum prey density threshold for sea\u2010louse foraging and no satiation plateau, in spite of the high consumption rates measured. Sea\u2010louse infection levels declined following a one\u2010phase exponential decay model, with a standardised decline time constant of 0.8\u20131.3% h<jats:sup>\u22121<\/jats:sup> for each wrasse stocked per 100 salmon<\/jats:bold>.<\/jats:p><\/jats:sec><jats:sec><jats:title>CONCLUSIONS<\/jats:title><jats:p><jats:bold>Farmed ballan wrasse are confirmed as highly effective therapeutic and preventive biological controls against sea\u2010lice. The study supports the current minimum hatchery size target (10\u2009mm total length) and the use of supplementary feeding to sustain the wrasse stocks in operation. The functional predator response and the standardised decline time constant of sea\u2010louse abundance are proposed as useful indicators of delousing efficiency. \u00a9 2013 Society of Chemical Industry<\/jats:bold><\/jats:p><\/jats:sec>","DOI":"10.1002\/ps.3692","type":"journal-article","created":{"date-parts":[[2013,11,29]],"date-time":"2013-11-29T12:32:59Z","timestamp":1385728379000},"page":"1274-1282","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":72,"title":["Delousing efficiency of farmed ballan wrasse (<i>Labrus bergylta<\/i>) against <i>Lepeophtheirus salmonis<\/i> infecting Atlantic salmon (<i>Salmo salar<\/i>) post\u2010smolts"],"prefix":"10.1002","volume":"70","author":[{"given":"Eric","family":"Leclercq","sequence":"first","affiliation":[{"name":"Institute of Aquaculture University of Stirling Stirling Scotland UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Andrew","family":"Davie","sequence":"additional","affiliation":[{"name":"Institute of Aquaculture University of Stirling Stirling Scotland UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Herv\u00e9","family":"Migaud","sequence":"additional","affiliation":[{"name":"Institute of Aquaculture University of Stirling Stirling Scotland UK"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2014,1,15]]},"reference":[{"issue":"1","key":"e_1_2_7_2_1","article-title":"The availability and use of chemotherapeutic sea\u2010lice control products","volume":"69","author":"Roth M","year":"2000","journal-title":"Contrib Zool"},{"key":"e_1_2_7_3_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1365-2761.2008.01011.x"},{"key":"e_1_2_7_4_1","first-page":"185","article-title":"Aspects of the biology of the parasitic copepods Lepeophtheirus salmonis and Caligus elongatus on farmed salmonids, and their treatment","volume":"81","author":"Wootten R","year":"1982","journal-title":"Proc R Soc Edinb"},{"key":"e_1_2_7_5_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1095-8649.1996.tb01813.x"},{"key":"e_1_2_7_6_1","unstructured":"MichieI Causes of downgrading in the salmon farming industry inFarmed Fish Quality ed. by Kestin SC and Warriss PD. 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