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Hi All, Oct 10, 2011
Some 5-10 years ago there was a TV program (CBC or ATV) discussing effects of seal activities on fisheries somewhere in Nfld. The seals in question tended to eat only guts and, e.g. many fish caught in gill nets were being de-gutted by seals and such damaged fish had to be discarded. In addition nets (don't recall what kind) were frequently damaged by seal feeding.
Perhaps someone can refresh the screen. Have I got it straight ? Is gut feeding general ? etc.
Yt, Dave Webster, Kentville
----- Original Message -----
From: Richard Stern
To: naturens@chebucto.ns.ca
Sent: Monday, October 10, 2011 4:12 PM
Subject: Re: [NatureNS] re foods of culled seals? -- was Seal Cull
Hi,
With all the scientific observations, and data that has been collected, on seals in recent years, by those who are both in favor of, and opposed to, a seal cull, surely somewhere there must be a detailed analysis of the contents of adult seals' stomachs? And surely there's someone on NatureNS who knows this info?
For what it's worth, here's what seems to be a valid reference I found by googling --
The single biggest island-breeding colony is on Sable Island (85,000, increasing at almost 12% per annum). Other major sites in the western Atlantic are in the Gulf of St. Lawrence (69,000). (and from Wikipedia ----- The grey seal feeds on a wide variety of fish, mostly benthic or demersal species, taken at depths down to 70 m (230 ft) or more. Sand eels (Ammodytes spp) are important in its diet in many localities. Cod and other gadids, flatfish, herring and skates are also important locally. However, it is clear that the grey seal will eat whatever is available, including octopus and lobsters. The average daily food requirement is estimated to be 5 kg (11 lb), though the seal does not feed every day and it fasts during the breeding season.
Doing the math, therefore, it would seem that the Sable Island population alone would eat up to 425,000 Kg of fish per annum - considerable competition for Homo sapiens.
Richard
On Mon, Oct 10, 2011 at 3:31 PM, James W. Wolford <jimwolford@eastlink.ca> wrote:
Jeannie, I stand to be corrected, but I think a very large proportion of the "harvested" seals in recent years has been young pups only several weeks old and a bit post-weaning, and therefore would have no solid food yet in their guts. But if any cull that goes on consists of older seals that are shot, then it might make sense to sample their stomachs for foods consumed.
Cheers from Jim in Wolfville.
Begin forwarded message:
From: jeannies@ns.sympatico.ca
Date: October 10, 2011 10:26:54 AM ADT
To: naturens@chebucto.ns.ca
Cc: Gary Myers <gemyers@eastlink.ca>
Subject: Re: [NatureNS] Seal Cull
Reply-To: naturens@chebucto.ns.ca
With all the seal slaughtering that's going on...did not ONE person think to open one up and see what type of fish they're consuming???
Jeannie Shermerhorn
---- Gary Myers <gemyers@eastlink.ca> wrote:
The announcement that Fisheries and Oceans was proposing a 70,000 animal cull as an experiment followed by a further 70,000 experimentation kill the following year was made Sep 15 this year. Co-incidentally that date was the 40th anniversary of the founding of Greenpeace and CBC carried the two stories consecutively all day. My first reaction was to check to see if that was international prank day or some such. Surely someone needs to give their head a god shake. Gary Myers Morden NS
--
#################
Richard Stern,
Port Williams, NS, Canada
sternrichard@gmail.com
###################
------------------------------------------------------------------------------
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Checked by AVG - www.avg.com
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--Boundary_(ID_1ZSpkcwApNaSIvB6qbriTQ)
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<DIV><FONT size=2>Hi All,
Oct 10,
2011</FONT></DIV>
<DIV><FONT size=2> Some 5-10 years ago there was a TV program
(CBC or ATV) discussing effects of seal activities on fisheries somewhere in
Nfld. The seals in question tended to eat only guts and, e.g. many fish caught
in gill nets were being de-gutted by seals and such damaged fish had
to be discarded. In addition nets (don't recall what kind) were frequently
damaged by seal feeding. </FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT size=2> Perhaps someone can refresh the screen.
Have I got it straight ? Is gut feeding general ? etc.</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"
dir=ltr>
<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="FONT: 10pt arial; BACKGROUND: #e4e4e4; font-color: black"><B>From:</B>
<A title=sternrichard@gmail.com href="mailto:sternrichard@gmail.com">Richard
Stern</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A title=naturens@chebucto.ns.ca
href="mailto:naturens@chebucto.ns.ca">naturens@chebucto.ns.ca</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Monday, October 10, 2011 4:12
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [NatureNS] re foods of
culled seals? -- was Seal Cull</DIV>
<DIV><BR></DIV>Hi,<BR><BR>With all the scientific observations, and data that
has been collected, on seals in recent years, by those who are both in favor
of, and opposed to, a seal cull, surely somewhere there must be a detailed
analysis of the contents of adult seals' stomachs? And surely there's someone
on NatureNS who knows this info?<BR>For what it's worth, here's what seems to
be a valid reference I found by googling --<BR><BR>The single biggest
island-breeding colony is on Sable Island (85,000, increasing at almost 12%
per annum). Other major sites in the western Atlantic are in the Gulf of St.
Lawrence (69,000). (and from Wikipedia ----- The grey seal feeds on a
wide variety of <A title=Fish
href="http://en.wikipedia.org/wiki/Fish">fish</A>, mostly <A class=mw-redirect
title=Benthic href="http://en.wikipedia.org/wiki/Benthic">benthic</A> or <A
class=mw-redirect title=Demersal
href="http://en.wikipedia.org/wiki/Demersal">demersal</A> species, taken at
depths down to 70 m (230 ft) or more. <A title="Sand eel"
href="http://en.wikipedia.org/wiki/Sand_eel">Sand eels</A> (<I>Ammodytes
spp</I>) are important in its diet in many localities. <A title=Cod
href="http://en.wikipedia.org/wiki/Cod">Cod</A> and other <A title=Gadidae
href="http://en.wikipedia.org/wiki/Gadidae">gadids</A>, <A title=Flatfish
href="http://en.wikipedia.org/wiki/Flatfish">flatfish</A>, <A title=Herring
href="http://en.wikipedia.org/wiki/Herring">herring</A><SUP> </SUP><SUP>
</SUP>and skates
are also important locally. However, it is clear that the grey seal will eat
whatever is available, including <A title=Octopus
href="http://en.wikipedia.org/wiki/Octopus">octopus</A> and <A title=Lobster
href="http://en.wikipedia.org/wiki/Lobster">lobsters</A>. The average daily
food requirement is estimated to be 5 kg (11 lb), though the seal
does not feed every day and it fasts during the breeding season.<BR><BR>Doing
the math, therefore, it would seem that the Sable Island population alone
would eat up to 425,000 Kg of fish per annum - considerable competition for
Homo sapiens.<BR><BR>Richard<BR><BR><BR><BR>
<DIV class=gmail_quote>On Mon, Oct 10, 2011 at 3:31 PM, James W. Wolford <SPAN
dir=ltr><<A
href="mailto:jimwolford@eastlink.ca">jimwolford@eastlink.ca</A>></SPAN>
wrote:<BR>
<BLOCKQUOTE
style="BORDER-LEFT: #ccc 1px solid; MARGIN: 0px 0px 0px 0.8ex; PADDING-LEFT: 1ex"
class=gmail_quote>
<DIV style="WORD-WRAP: break-word">Jeannie, I stand to be corrected, but I
think a very large proportion of the "harvested" seals in recent years has
been young pups only several weeks old and a bit post-weaning, and therefore
would have no solid food yet in their guts. But if any cull that goes
on consists of older seals that are shot, then it might make sense to sample
their stomachs for foods consumed.
<DIV><BR></DIV>
<DIV>Cheers from Jim in Wolfville. <BR>
<DIV><BR>
<DIV>Begin forwarded message:</DIV><BR>
<BLOCKQUOTE type="cite">
<DIV style="MARGIN: 0px"><FONT
style="FONT: 12px Helvetica; COLOR: #000000" color=#000000 size=3
face=Helvetica><B>From: </B></FONT><FONT style="FONT: 12px Helvetica"
size=3 face=Helvetica><A href="mailto:jeannies@ns.sympatico.ca"
target=_blank>jeannies@ns.sympatico.ca</A></FONT></DIV>
<DIV style="MARGIN: 0px"><FONT
style="FONT: 12px Helvetica; COLOR: #000000" color=#000000 size=3
face=Helvetica><B>Date: </B></FONT><FONT style="FONT: 12px Helvetica"
size=3 face=Helvetica>October 10, 2011 10:26:54 AM ADT</FONT></DIV>
<DIV style="MARGIN: 0px"><FONT
style="FONT: 12px Helvetica; COLOR: #000000" color=#000000 size=3
face=Helvetica><B>To: </B></FONT><FONT style="FONT: 12px Helvetica" size=3
face=Helvetica><A href="mailto:naturens@chebucto.ns.ca"
target=_blank>naturens@chebucto.ns.ca</A></FONT></DIV>
<DIV style="MARGIN: 0px"><FONT
style="FONT: 12px Helvetica; COLOR: #000000" color=#000000 size=3
face=Helvetica><B>Cc: </B></FONT><FONT style="FONT: 12px Helvetica" size=3
face=Helvetica>Gary Myers <<A href="mailto:gemyers@eastlink.ca"
target=_blank>gemyers@eastlink.ca</A>></FONT></DIV>
<DIV style="MARGIN: 0px"><FONT
style="FONT: 12px Helvetica; COLOR: #000000" color=#000000 size=3
face=Helvetica><B>Subject: </B></FONT><FONT style="FONT: 12px Helvetica"
size=3 face=Helvetica><B>Re: [NatureNS] Seal Cull</B></FONT></DIV>
<DIV style="MARGIN: 0px"><FONT
style="FONT: 12px Helvetica; COLOR: #000000" color=#000000 size=3
face=Helvetica><B>Reply-To: </B></FONT><FONT style="FONT: 12px Helvetica"
size=3 face=Helvetica><A href="mailto:naturens@chebucto.ns.ca"
target=_blank>naturens@chebucto.ns.ca</A></FONT></DIV>
<DIV style="MARGIN: 0px; MIN-HEIGHT: 14px"><BR></DIV>
<DIV style="MARGIN: 0px">With all the seal slaughtering that's going
on...did not ONE person think to open one up and see what type of fish
they're consuming???</DIV>
<DIV style="MARGIN: 0px">Jeannie Shermerhorn</DIV>
<DIV style="MARGIN: 0px; MIN-HEIGHT: 14px"><BR></DIV>
<DIV style="MARGIN: 0px; MIN-HEIGHT: 14px"><BR></DIV>
<DIV style="MARGIN: 0px; MIN-HEIGHT: 14px"><BR></DIV>
<DIV style="MARGIN: 0px">---- Gary Myers <<A
href="mailto:gemyers@eastlink.ca"
target=_blank>gemyers@eastlink.ca</A>> wrote:<SPAN> </SPAN></DIV>
<BLOCKQUOTE type="cite">
<DIV style="MARGIN: 0px">The announcement that Fisheries and Oceans was
proposing a 70,000 animal cull as an experiment followed by a further
70,000 experimentation kill the following year was made Sep 15 this
year.<SPAN> </SPAN>Co-incidentally that date was the 40th
anniversary of the founding of Greenpeace and CBC carried the two
stories consecutively all day.<SPAN> </SPAN>My first reaction was
to check to see if that was international prank day or some
such.<SPAN> </SPAN>Surely someone needs to give their head a god
shake.<SPAN> </SPAN>Gary Myers Morden
NS</DIV></BLOCKQUOTE></BLOCKQUOTE></DIV><BR></DIV></DIV></BLOCKQUOTE></DIV><BR><BR
clear=all><BR>-- <BR>#################<BR>Richard Stern, <BR>Port Williams,
NS, Canada<BR><A href="mailto:sternrichard@gmail.com"
target=_blank>sternrichard@gmail.com</A><BR>###################<BR>
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<P class=avgcert align=left color="#000000">No virus found in this
message.<BR>Checked by AVG - <A
href="http://www.avg.com">www.avg.com</A><BR>Version: 10.0.1410 / Virus
Database: 1520/3941 - Release Date: 10/06/11</P></BLOCKQUOTE></BODY></HTML>
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