Subject: migratory paths of whales

Greg Early (gearly@neaq.org)
Tue, 09 Nov 1999 09:23:20 -0500

Mike,

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The general idea is that whales migrate from feeding areas, where the
water tends to be colder and more productive to breeding areas that are
warmer, but have less food.  Generally this means the large whales are
only feeding during part of the year (when they are on their feeding
grounds).  Some scientists think that being large is an adaptation that
makes it easier for a whale to make these long trips, so the larger the
whale the longer the trip between feeding and breeding grounds.  The
catch is that we do not have a very good idea about the routs the whales
take to get from one place to the next (or how much variation there is in
migratory behavior).  But the general rule seems to be, in the northern
hemisphere humpback whales are north in the summer and go south for the
winter. Not a bad life, if you think about it...


Blue whales (in the north atlantic look like they spend the winter in
warmer water in the mid-ocean (probably not eating...but we are not sure
about that one)and in the spring migrate to feeding grounds around
shallower, more productive water near the Canadian , Greenland, Iceland
and Norwegian coasts.


Here is a map of some humpback migration.


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regards,


ge




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.At 07:02 PM 11/03/99 -0800, you wrote:

>

>Hi Greg. I'm writing a story as a school project but I really need a

>little info. I need to know the general areas, paths, or routes of two

>whales: humpbacks and blues. I just need general areas that they might

>cover, please. My name is Mike and my E-mail is
:barbmike@earthlink.net.

>I'm in the San Fransisco area. Thanks again.

>

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Greg Early

Edgerton Research Laboratory				

New England Aquarium

Central Wharf

Boston, Mass 02110

617-973-5246 (phone)

617-723-6207 (FAX)		

gearly@neaq.org