Hydrodynamic determination of the moving direction of an artificial fin by a harbour seal (Phoca vitulina)
نویسندگان
چکیده
منابع مشابه
Hydrodynamic determination of the moving direction of an artificial fin by a harbour seal (Phoca vitulina).
Harbour seals can use their vibrissal system to detect and follow hydrodynamic trails left by moving objects. In this study we determined the maximum time after which a harbour seal could indicate the moving direction of an artificial fish tail and analysed the hydrodynamic parameters allowing the discrimination. Hydrodynamic trails were generated using a fin-like paddle moving from left to rig...
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The immune system of many mammalian species is not fully developed at birth, with newborns obtaining temporary immunological protection from maternal antibodies. Little is known of the immune system of the harbour seal, and developmental aspects of its immune system have not been systematically studied. We collected blood and milk samples from nine free-ranging mother-pup pairs throughout the l...
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METICILLIN-resistant Staphylococcus aureus (MRSA) is an important zoonosis that has increased in prevalence over the past decade, with up to 2 per cent of human beings acting as carriers, posing a risk to incontact animals (Tattevin and others 2009, Loeffler and Lloyd 2010, Couto and others 2011). Pulsed-field gel electrophoresis has been used to separate MRSA strains into community-associated ...
متن کاملTracking of biogenic hydrodynamic trails in harbour seals (Phoca vitulina).
For seals hunting in dark and murky waters one source of sensory information for locating prey consists of fish-generated water movements, which they can detect using their highly sensitive mystacial vibrissae. As water movements in the wake of fishes can persist for several minutes, hydrodynamic trails of considerable length are generated. It has been demonstrated that seals can use their vibr...
متن کاملHydrodynamic discrimination of wakes caused by objects of different size or shape in a harbour seal (Phoca vitulina).
Harbour seals can use their mystacial vibrissae to detect and track hydrodynamic wakes. We investigated the ability of a harbour seal to discriminate objects of different size or shape by their hydrodynamic signature and used particle image velocimetry to identify the hydrodynamic parameters that a seal may be using to do so. Hydrodynamic trails were generated by different sized or shaped paddl...
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ژورنال
عنوان ژورنال: Journal of Experimental Biology
سال: 2010
ISSN: 1477-9145,0022-0949
DOI: 10.1242/jeb.041699