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Heat draws in whales and dolphins

Heat draws in whales and dolphins

Old Jul 23rd 2006, 6:45 pm
  #1  
Delirium Tremens
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Default Heat draws in whales and dolphins

Heat draws in whales and dolphins

Scientists believe the current heatwave may be contributing to the
unusually large numbers of whales and dolphins off Scotland's east
coast.

The sea around Aberdeenshire is proving to be a particular hot spot for
marine mammals, with many more minke whales recorded than normal.

The whales, which grow to about 28ft, have been seen congregating
inshore near Aberdeen and further north.

They have also been seen feeding close to the surface in the Moray
Firth.


The increase in sightings probably reflects the marked rise in sea
surface temperatures which has taken place in recent years
Dr Peter Evans
Sea Watch Foundation

Other unusual sightings over the past week include: a fin whale at
North Berwick; a whale, believed to be a pilot whale, at St Cyrus; six
risso's dolphins off Girdleness near Aberdeen and large groups of
white-beaked dolphins further offshore.

Groups of up to a dozen common dolphins have also been seen at
Fraserburgh and a humpback whale in the Outer Hebrides.

Dr Peter Evans, director of the Sea Watch Foundation, a marine
conservation charity and research organisation, said: "Harbour
porpoises and bottlenose dolphins are more or less resident in the
Moray Firth and off the Aberdeenshire coast, but common dolphins occur
mainly around the south-west of Britain.

"And risso's dolphins are rare in the North Sea, although they have
been seen a number of times in the last couple of years.

Risso's dolphin
Rare Risso's dolphins have been spotted in the North Sea

"The increase in sightings of these species in this area probably
reflects the marked rise in sea surface temperatures which has taken
place in recent years.

"We are still analysing figures, but we believe there are more
sightings of both whales and dolphins in eastern Scotland this year
compared to the same period last year."

He added that sightings of minkes off the west coast were particularly
welcome as there was a decline in their numbers in the area last year
due to a regional shortage of sprats on which they feed.

National Whale and Dolphin Watch takes place from 12-20 August around
the coast of Britain.

The event is organised annually by the Sea Watch Foundation, to raise
awareness of the 28 marine mammal species known to visit British and
Irish waters.

Sightings are used by Sea Watch scientists to aid their research into
the effects on whales and dolphins of factors such as global warming,
marine pollution, and fishing.
 
Old Jul 23rd 2006, 8:23 pm
  #2  
Gerrit 't Hart
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Default Re: Heat draws in whales and dolphins

"Delirium Tremens" <[email protected]> wrote in message
news:[email protected] oups.com...
    > Heat draws in whales and dolphins
    > Scientists believe the current heatwave may be contributing to the
    > unusually large numbers of whales and dolphins off Scotland's east
    > coast.

Or could it have something to do with the fact that there are less whales
being killed than in the past and the species are increasing in numbers?
That's what's happening with the numbers of Humpback and Right whales here
in Australia.

Gerrit - Oz
 
Old Jul 23rd 2006, 8:46 pm
  #3  
Delirium Tremens
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Posts: n/a
Default Re: Heat draws in whales and dolphins

Gerrit 't Hart wrote:
    > "Delirium Tremens" <[email protected]> wrote in message
    > news:[email protected] oups.com...
    > > Heat draws in whales and dolphins
    > >
    > > Scientists believe the current heatwave may be contributing to the
    > > unusually large numbers of whales and dolphins off Scotland's east
    > > coast.
    > >
    > Or could it have something to do with the fact that there are less whales
    > being killed than in the past and the species are increasing in numbers?
    > That's what's happening with the numbers of Humpback and Right whales here
    > in Australia.
    >
    > Gerrit - Oz

best not to live close to Norway then.......
 
Old Jul 23rd 2006, 8:49 pm
  #4  
Brian Walker
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Default Re: Heat draws in whales and dolphins

"Delirium Tremens" <[email protected]> wrote in
news:[email protected] oups.com:

    > The increase in sightings probably reflects the marked rise in sea
    > surface temperatures which has taken place in recent years

Can You quantify the changes in sea temperature ?
 
Old Jul 23rd 2006, 8:54 pm
  #5  
Delirium Tremens
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Default Re: Heat draws in whales and dolphins

Brian Walker wrote:
    > "Delirium Tremens" <[email protected]> wrote in
    > news:[email protected] oups.com:
    > > The increase in sightings probably reflects the marked rise in sea
    > > surface temperatures which has taken place in recent years
    >
    > Can You quantify the changes in sea temperature ?

me personally ?
 
Old Jul 23rd 2006, 10:50 pm
  #6  
Brian Walker
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Posts: n/a
Default Re: Heat draws in whales and dolphins

"Delirium Tremens" <[email protected]> wrote in
news:[email protected] oups.com:

    >
    > Brian Walker wrote:
    >> "Delirium Tremens" <[email protected]> wrote in
    >> news:[email protected] oups.com:
    >> > The increase in sightings probably reflects the marked rise in sea
    >> > surface temperatures which has taken place in recent years
    >>
    >> Can You quantify the changes in sea temperature ?
    >
    > me personally ?
    >

Yes , or the source of the data.
 
Old Jul 23rd 2006, 11:01 pm
  #7  
Delirium Tremens
Guest
 
Posts: n/a
Default Re: Heat draws in whales and dolphins

Brian Walker wrote:
    > "Delirium Tremens" <[email protected]> wrote in
    > news:[email protected] oups.com:
    > >
    > > Brian Walker wrote:
    > >> "Delirium Tremens" <[email protected]> wrote in
    > >> news:[email protected] oups.com:
    > >>
    > >> > The increase in sightings probably reflects the marked rise in sea
    > >> > surface temperatures which has taken place in recent years
    > >>
    > >> Can You quantify the changes in sea temperature ?
    > >
    > > me personally ?
    > >
    > Yes , or the source of the data.

[email protected]
 

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