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Hi Jim & All, Aug 5, 2010
The Gulf spill raises once again four questions. Perhaps someone on this list can shed some light.
Is the use of dispersants (wetting agents) strictly cosmetic ?
Do these wetting agents have direct adverse effects on marine life ?
Do they indirectly have adverse effects by dispersing the oil and thus increasing the oil/water interface ?
Has a search for aerobic organisms that are able to use crude oil components as an energy source been undertaken ? Natural outcrops of oil-bearing shale would be likely sites for example. Seeding a spill area with an oil consuming organism might be an efficient way to clean up; especially trace amounts.
Yt, Dave Webster, Kentville
----- Original Message -----
From: James W. Wolford
To: NatureNS ; Dave Shutler ; Colleen Barber ; Marty Leonard ; Andy Horn ; Ian McLaren
Sent: Wednesday, August 04, 2010 5:01 PM
Subject: [NatureNS] Canadian gannets & winter in Gulf of Mexico -- study needed
AUG. 4, 2010 - This afternoon on good old CBC Radio, Bill Montevecchi, very well-known seabird biologist of Newfoundland (Memorial Univ.? Biology?), was wishing for funding (from Canadian government?) for a satellite-tagging study of NORTHERN GANNETS of breeding colonies of Newfoundland and Quebec and perhaps Arctic Canada, in order to be able to follow the migration and overwintering survival? of perhaps 50 gannets from each of the three regions, since many/most? of them will be flying to overwinter in the treacherous oily Gulf of Mexico (thanks to the massive spill of 651 million litres of crude oil since the deep well off Louisiana exploded on April 20/10).
Montevecchi mentioned the picturesque, large colony at Cape St. Mary's in NF and the larger colony on Bonaventure Island off Perce (Gaspe Peninsula, Quebec), the latter being perhaps the largest gannet colony in the world. He mentioned some fascinating natural history of the gannets at the end of their nesting cycle: two weeks before the youngsters can fly, the "fledglings" jump off the cliffs to hopefully land in the water rather than hitting rocks, leaving their parents behind for courtship for the following year, and then swim from Newfoundland (and Quebec?) to Nova Scotia until they can fly. Later the adults follow them, eventually to the dangerous Gulf of Mexico.
[I heard this at about 1:30 p.m., whatever CBC show plays then, so perhaps interested people can later find a podcast, whatever that is, of the program. I don't know what the show was nor the host or reporter.]
Cheers from Jim in Wolfville
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<DIV><FONT size=2>Hi Jim & All,
Aug 5, 2010</FONT></DIV>
<DIV><FONT size=2> The Gulf spill raises once again four
questions. Perhaps someone on this list can shed some light.</FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT size=2> Is the use of dispersants (wetting agents)
strictly cosmetic ?</FONT></DIV>
<DIV><FONT size=2> Do these wetting agents have direct adverse
effects on marine life ?</FONT></DIV>
<DIV><FONT size=2> Do they indirectly have adverse effects by
dispersing the oil and thus increasing the oil/water interface ?</FONT></DIV>
<DIV><FONT size=2> Has a search for aerobic organisms that are
able to use crude oil components as an energy source been undertaken
? Natural outcrops of oil-bearing shale would be likely sites
for example. Seeding a spill area with an oil consuming organism might be an
efficient way to clean up; especially trace amounts.</FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT size=2>Yt, Dave Webster, Kentville</FONT></DIV>
<BLOCKQUOTE
style="BORDER-LEFT: #000000 2px solid; PADDING-LEFT: 5px; PADDING-RIGHT: 0px; MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px">
<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="FONT: 10pt arial; BACKGROUND: #e4e4e4; font-color: black"><B>From:</B>
<A title=jimwolford@eastlink.ca href="mailto:jimwolford@eastlink.ca">James W.
Wolford</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A title=naturens@chebucto.ns.ca
href="mailto:naturens@chebucto.ns.ca">NatureNS</A> ; <A
title=dave.shutler@acadiau.ca href="mailto:dave.shutler@acadiau.ca">Dave
Shutler</A> ; <A title=colleen.barber@smu.ca
href="mailto:colleen.barber@smu.ca">Colleen Barber</A> ; <A
title=mleonard@dal.ca href="mailto:mleonard@dal.ca">Marty Leonard</A> ; <A
title=aghorn@dal.ca href="mailto:aghorn@dal.ca">Andy Horn</A> ; <A
title=iamclar@dal.ca href="mailto:iamclar@dal.ca">Ian McLaren</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Wednesday, August 04, 2010 5:01
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> [NatureNS] Canadian gannets
& winter in Gulf of Mexico -- study needed</DIV>
<DIV><BR></DIV>
<DIV style="MARGIN: 0px"><FONT style="FONT: 17px Arial" size=5
face=Arial><B>AUG. 4, 2010</B> - This afternoon on good old <B>CBC Radio</B>,
<B>Bill Montevecchi</B>, very well-known seabird biologist of Newfoundland
(Memorial Univ.? Biology?), was wishing for funding (from Canadian
government?) for a satellite-tagging study of <B>NORTHERN GANNETS</B> of
breeding colonies of Newfoundland and Quebec and perhaps Arctic Canada, in
order to be able to follow the migration and overwintering survival? of
perhaps 50 gannets from each of the three regions, since many/most? of them
will be flying to <B>overwinter in the treacherous oily Gulf of Mexico
</B>(thanks to the massive spill of 651 million litres of crude oil since the
deep well off Louisiana exploded on April 20/10).</FONT></DIV>
<DIV style="MARGIN: 0px; MIN-HEIGHT: 21px; FONT: 17px Arial"><BR></DIV>
<DIV style="MARGIN: 0px"><FONT style="FONT: 17px Arial" size=5
face=Arial>Montevecchi mentioned the picturesque, large colony at Cape St.
Mary's in NF and the larger colony on Bonaventure Island off Perce (Gaspe
Peninsula, Quebec), the latter being perhaps the largest gannet colony in the
world. He mentioned some <B>fascinating natural history of the gannets
at the end of their nesting cycle</B>: two weeks before the youngsters can
fly, the "fledglings" jump off the cliffs to hopefully land in the water
rather than hitting rocks, leaving their parents behind for courtship for the
following year, and then swim from Newfoundland (and Quebec?) to Nova
Scotia until they can fly. Later the adults follow them, eventually to
the dangerous Gulf of Mexico.</FONT></DIV>
<DIV style="MARGIN: 0px; MIN-HEIGHT: 21px; FONT: 17px Arial"><BR></DIV>
<DIV style="MARGIN: 0px"><FONT style="FONT: 17px Arial" size=5 face=Arial>[I
heard this at about 1:30 p.m., whatever CBC show plays then, so perhaps
interested people can later find a podcast, whatever that is, of the
program. I don't know what the show was nor the host or reporter.]
</FONT></DIV>
<DIV style="MARGIN: 0px"><FONT style="FONT: 17px Arial" size=5
face=Arial><BR></FONT></DIV>
<DIV style="MARGIN: 0px"><FONT style="FONT: 17px Arial" size=5
face=Arial>Cheers from Jim in Wolfville</FONT></DIV>
<P>
<HR>
<P></P><BR>No virus found in this incoming message.<BR>Checked by AVG -
www.avg.com <BR>Version: 9.0.851 / Virus Database: 271.1.1/3049 - Release
Date: 08/03/10 11:22:00<BR></BLOCKQUOTE></BODY></HTML>
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