Page 141 - Sjæklen2005

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sælen svømmer med ryggen opad eller nedad.
styres af en miljøgruppe sammensat af repræsentanter for
Energistyrelsen, Skov- og Naturstyrelsen og elselskaberne
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af eksperter på de forskellige fagområder har løbende eva-
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Noter
1. Artiklens forfattere takker specialestuderende René
Coning Jensen, Biologisk Institut, Syddansk Universitet for
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2. Jakob Tougaard, Svend Tougaard og Thyge Jensen:
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Summary
Studies on how seals use the North Sea were carried out
during 2003-2005 in cooperation with Kiel University and
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transmitters, and data loggers which collect very detailed
information on seal behaviour and save it in an internal
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data can be used, while theARGOS transmitter can determine
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The results support previous studies, and it is clear that the
seals in the Wadden Sea use the North Sea as a foraging area
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The preliminary information from the data loggers which
were recovered shows a clear pattern of different behaviour
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behaviour can be clearly distinguished: the seal swims down
vertically to the bottom and remains there for a few minutes
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again swims vertically down to continue foraging at the
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These studies will be extended when additional data
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0
5
10
15
20
25
04:32:00 04:37:00 04:42:00 04:47:00 04:52:00
(m) Dykkedybde
8,0
7,5
7,0
6,5
6,0
04:32:00 04:37:00 04:42:00 04:47:00 04:52:00
(grader) Temperatur
-90
-60
-30
0
30
60
90
04:32:00 04:37:00 04:42:00 04:47:00 04:52:00
(grader) Svømmevinkel
04:32:00 04:37:00 04:42:00 04:47:00 04:52:00
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