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dc.contributor.authorMarras, Sen
dc.contributor.authorNoda, Ten
dc.contributor.authorSteffensen, JFen
dc.contributor.authorSvendsen, MBSen
dc.contributor.authorKrause, Jen
dc.contributor.authorWilson, ADMen
dc.contributor.authorKurvers, RHJMen
dc.contributor.authorHerbert-Read, Jen
dc.contributor.authorBoswell, KMen
dc.contributor.authorDomenici, Pen
dc.date.accessioned2018-05-09T10:17:58Z
dc.date.available2018-05-09T10:17:58Z
dc.date.issued2015-10en
dc.identifier.urihttp://hdl.handle.net/10026.1/11448
dc.description.abstract

Billfishes are considered among the fastest swimmers in the oceans. Despite early estimates of extremely high speeds, more recent work showed that these predators (e.g., blue marlin) spend most of their time swimming slowly, rarely exceeding 2 m s(-1). Predator-prey interactions provide a context within which one may expect maximal speeds both by predators and prey. Beyond speed, however, an important component determining the outcome of predator-prey encounters is unsteady swimming (i.e., turning and accelerating). Although large predators are faster than their small prey, the latter show higher performance in unsteady swimming. To contrast the evading behaviors of their highly maneuverable prey, sailfish and other large aquatic predators possess morphological adaptations, such as elongated bills, which can be moved more rapidly than the whole body itself, facilitating capture of the prey. Therefore, it is an open question whether such supposedly very fast swimmers do use high-speed bursts when feeding on evasive prey, in addition to using their bill for slashing prey. Here, we measured the swimming behavior of sailfish by using high-frequency accelerometry and high-speed video observations during predator-prey interactions. These measurements allowed analyses of tail beat frequencies to estimate swimming speeds. Our results suggest that sailfish burst at speeds of about 7 m s(-1) and do not exceed swimming speeds of 10 m s(-1) during predator-prey interactions. These speeds are much lower than previous estimates. In addition, the oscillations of the bill during swimming with, and without, extension of the dorsal fin (i.e., the sail) were measured. We suggest that extension of the dorsal fin may allow sailfish to improve the control of the bill and minimize its yaw, hence preventing disturbance of the prey. Therefore, sailfish, like other large predators, may rely mainly on accuracy of movement and the use of the extensions of their bodies, rather than resorting to top speeds when hunting evasive prey.

en
dc.format.extent719 - 727en
dc.languageengen
dc.language.isoengen
dc.subjectAccelerometryen
dc.subjectAnimalsen
dc.subjectBiomechanical Phenomenaen
dc.subjectFishesen
dc.subjectPredatory Behavioren
dc.subjectSwimmingen
dc.subjectVideo Recordingen
dc.titleNot So Fast: Swimming Behavior of Sailfish during Predator-Prey Interactions using High-Speed Video and Accelerometry.en
dc.typeJournal Article
plymouth.author-urlhttps://www.ncbi.nlm.nih.gov/pubmed/25898843en
plymouth.issue4en
plymouth.volume55en
plymouth.publication-statusPublisheden
plymouth.journalIntegr Comp Biolen
dc.identifier.doi10.1093/icb/icv017en
plymouth.organisational-group/Plymouth
plymouth.organisational-group/Plymouth/Faculty of Science and Engineering
plymouth.organisational-group/Plymouth/Faculty of Science and Engineering/School of Biological and Marine Sciences
plymouth.organisational-group/Plymouth/REF 2021 Researchers by UoA
plymouth.organisational-group/Plymouth/REF 2021 Researchers by UoA/UoA07 Earth Systems and Environmental Sciences
plymouth.organisational-group/Plymouth/Users by role
plymouth.organisational-group/Plymouth/Users by role/Academics
dc.publisher.placeEnglanden
dc.identifier.eissn1557-7023en
dc.rights.embargoperiodNot knownen
rioxxterms.versionofrecord10.1093/icb/icv017en
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserveden
rioxxterms.typeJournal Article/Reviewen


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