Subject: Data seal 10/17/97 Gooch (fwd)

mike williamson (
Fri, 17 Oct 1997 12:58:27 -0400 (EDT)

Attached is a "Week 1 " update.  Looks like "Gooch" is trying for
France.....why will these aniamsl not do what I want....


Week 1...  During this first week since release, we have received 26 data
messages and 6 location fixes.  This is a rather small number of signals,
however it appears to be a pattern that we receive fewer signals immediately
after release.  The tag will signal every time it senses the surface of the
water, or when #4 is hauled out.  It appears (from the small number of
messages) that he has not hauled out for a significant amount of time,
although he may have spent time out of the water at times when there was no
satellite overhead.  Other reasons for the small number of signals may be
rough sea conditions (blocking transmission), or power fluctuation in the
tag (this tag was "on the shelf" for several months and battery strength may
improve with use).

	Locations:  Immediately after release #4  appeared to head north following
the coast.  During this time it appears that he spent much of the 12th and
13th swimming on the surface and doing quick shallow dives.  We received no
location from 10/13-10/15.  On 10/15 we received a location from the tag
roughly 50 miles east of Cape Elizabeth.  This location would explain the
difficulty of tracking him for the past two days as rougher sea conditions
offshore would make it difficult for the tag to send a clear signal to the
satellite.   The weather in this area this week has been stormy as well
probably adding to the rough sea conditions. 

Dive Data:  Of the 26 messages we have received only 12 have been received
without errors.  No messages have been sent while hauled out and it appears
that #4 has not spent a great deal of time (if any) out of the water.  The
diving information we have shows that #4 has been doing between 60-130 dives
in a six hour period.  The deepest dives have been to just over 100 feet.
Since 10/15 most of his dives have been to between 50-65 feet.  Prior to
this it appears that most of his dives were relatively quick, although  some
dives were as long as 4-6 minutes.

The diving pattern we received today (10/15) appears to indicate foraging
and we will be watching closely to see if this keeps up.

                      J. Michael Williamson
Principal Investigator-WhaleNet <>
                   Associate Professor-Science
  Wheelock College, 200 The Riverway, Boston, MA 02215
             voice: 617.734.5200, ext. 256
            fax:    617.734.8666, or 978.468.0073

"Follow in my wake, you've not that much at stake,
For I have plowed the seas, and smoothed the troubled waters"
                        Jimmy Buffett