{"refrec":{"BRefID":437648,"RR":"<b>Martín López, L.M.; Isojunno, S.; Cade, D.E.; Colson, K.; Paradinas, I.; Miller, P.J.O.; Fahlman, A.; Hickmott, L.S.; Visser, F.</b> (2025). Naval sonar induces an anaerobic swimming gait in beaked whales. <i>NPG Scientific Reports 15(1)</i>: 38686. <a href=\"https://dx.doi.org/10.1038/s41598-025-22490-5\" target=\"_blank\">https://dx.doi.org/10.1038/s41598-025-22490-5</a>","BEntID":435479,"PublicFlag":1,"CheckedFlag":0,"wosflag":1,"vabbflag":1,"RefStringPartII":". <i>NPG Scientific Reports 15(1)</i>: 38686. <a href=\"https://dx.doi.org/10.1038/s41598-025-22490-5\" target=\"_blank\">https://dx.doi.org/10.1038/s41598-025-22490-5</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":0,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Martín López, L.M.; Isojunno, S.; Cade, D.E.; Colson, K.; Paradinas, I.; Miller, P.J.O.; Fahlman, A.; Hickmott, L.S.; Visser, F.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Martín López, L.M. <i>et al.</i>","Englishabstract":"<span style=\"background-color:rgb(255,255,255);color:rgb(34,34,34);\">Naval sonar can disrupt beaked whale diving behaviour, in some cases leading to lethal strandings. Diving disruption likely involves a physiological response, which remains poorly understood. Beaked whales may exceed their aerobic dive limit during long-duration deep-foraging dives and later in those dives, during ascent, initiate a unique strong gait (B-strokes), hypothesized to recruit anaerobic fast-twitch fibres. We compared the use of B-strokes during exposed and unexposed dives in four species of beaked whales. Contrasting the highly context-specific use of B-strokes during ascents from deep-dives in baseline conditions, during sonar exposure, B-strokes were used during descent and ascent phases of both deep and shallow dives. B-stroke onset occurred during all sonar exposure periods with levels above 100&nbsp;dB re 1&nbsp;µPa that lasted more than three minutes. The use of B-strokes during descent indicates these animals start using an oxygen-saving strategy earlier in exposed (16 ± 13&nbsp;min) vs. unexposed dives (33 ± 14&nbsp;min). This change in swimming gait when exposed to an external threat likely evolved to enable flexible escape responses from predators. However, if prolonged, such responses could lead to physiological changes that contribute to gas bubble formation and growth that could lead to animals stranding.</span>","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Naval sonar induces an anaerobic swimming gait in beaked whales","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2026-04-21 01:33:43.132851","timezone_type":1,"timezone":"+02:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":"Beaked whales; Anthropogenic noise; Behavioural response; Naval sonar; Diving physiology; Marine mammals","OtherDescriptors":null,"Notes":null,"AnaPub":2025,"MonPub":null,"DateUpdate":"2026-02-13","DateCreate":"2026-02-13","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":null,"VABBcode":null,"OpenAcc":1,"DOI":"10.1038/s41598-025-22490-5"},"refs":null,"anarec":{"AnaID":437648,"PubliDate":2025,"Pagination":"38686","XtraPublOfAnaID":null,"ISBN":null,"Volume":"15","Issue":"1","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":208093,"SerRR":"Scientific Reports (Nature Publishing Group). Nature Publishing Group: London.  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