Evidence that grey seals (<i>Halichoerus grypus</i>) use above-water vision to locate baited buoys
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چکیده
منابع مشابه
Grey seals use anthropogenic signals from acoustic tags to locate fish: evidence from a simulated foraging task
Anthropogenic noise can have negative effects on animal behaviour and physiology. However, noise is often introduced systematically and potentially provides information for navigation or prey detection. Here, we show that grey seals (Halichoerus grypus) learn to use sounds from acoustic fish tags as an indicator of food location. In 20 randomized trials each, 10 grey seals individually explored...
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Heart rate, swimming speed and diving depth data were collected from free-ranging grey seals, Halichoerus grypus, as they foraged and travelled in the sea around the Hebrides Islands off western Scotland. Information was collected on a tracking yacht using a combination of sonic and radio telemetry. Diving heart rate declined as a function of dive duration. In long dives, grey seals employed ex...
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ژورنال
عنوان ژورنال: NAMMCO Scientific Publications
سال: 2007
ISSN: 2309-2491,1560-2206
DOI: 10.7557/3.2736