[NatureNS] red tide?

From: Christopher Majka <c.majka@ns.sympatico.ca>
To: naturens@chebucto.ns.ca
Date: Tue, 5 Aug 2008 11:50:01 -0300
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Scotia, Canada&amp;nbsp; B3H 3A6&lt;/d

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Hi Marg,

On 5-Aug-08, at 9:35 AM, Margaret E.Millard wrote:

> Over the years, I spent a number of evenings wandering quietly along  
> Port Mouton Bay, mostly Summerville and Carter's beaches after dark  
> and at this time of year I have seen a number of times this  
> 'phosphoresence' which is what I was told it was. It always  
> fascinated me.

Bear in mind that bioluminescene (a.k.a. phosphoresence) is produced  
by a variety of marine organisms besides dinoflagellates. Some of my  
favourites are ctenophores (comb jellys). The "sea grape"  
Pleurobrachia pileus, common in this area, has often been reported as  
bioluminescent although there seems to be some question as to whether  
this may be a species in the related genus Euplokamis. In any event,  
most ctenophores are bioluminescent.

Those interested in the subject should check out the bioluminescence  
web page:

http://www.lifesci.ucsb.edu/~biolum/

Which has lots of sensational photos of various bioluminescent  
organisms, and a lot of information on the subject.

Cheers!

Chris

Christopher Majka
Nova Scotia Museum, 1747 Summer St., Halifax, Nova Scotia, Canada  B3H  
3A6
c.majka@ns.sympatico.ca




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<html><body style=3D"word-wrap: break-word; -webkit-nbsp-mode: space; =
-webkit-line-break: after-white-space; ">Hi Marg,<div><br><div><div>On =
5-Aug-08, at 9:35 AM, Margaret E.Millard wrote:</div><br =
class=3D"Apple-interchange-newline"><blockquote type=3D"cite"><div>Over =
the years, I spent a number of evenings wandering quietly along Port =
Mouton Bay, mostly Summerville and Carter's beaches after dark and at =
this time of year I have seen a number of times this 'phosphoresence' =
which is what I was told it was. It always fascinated =
me.<br></div></blockquote><br></div><div>Bear in mind that =
bioluminescene (a.k.a.&nbsp;phosphoresence) is produced by a variety of =
marine&nbsp;organisms&nbsp;besides dinoflagellates. Some of my =
favourites are ctenophores (comb jellys). The "sea grape" =
<i>Pleurobrachia pileus</i>, common in this area, has often been =
reported as bioluminescent although there seems to be some question as =
to whether this may be a species in the related genus <i>Euplokamis</i>. =
In any event, most ctenophores are =
bioluminescent.</div><div><br></div><div>Those interested in the subject =
should check out the bioluminescence web =
page:</div><div><br></div><div><a =
href=3D"http://www.lifesci.ucsb.edu/~biolum/">http://www.lifesci.ucsb.edu/=
~biolum/</a></div><div><br></div><div>Which has lots of sensational =
photos of various bioluminescent organisms, and a lot of information on =
the =
subject.</div><div><br></div><div>Cheers!</div><div><br></div><div>Chris</=
div><div><br></div><div apple-content-edited=3D"true"> <span =
class=3D"Apple-style-span" style=3D"border-collapse: separate; =
border-spacing: 0px 0px; color: rgb(0, 0, 0); font-family: Helvetica; =
font-size: 12px; font-style: normal; font-variant: normal; font-weight: =
normal; letter-spacing: normal; line-height: normal; text-align: auto; =
-khtml-text-decorations-in-effect: none; text-indent: 0px; =
-apple-text-size-adjust: auto; text-transform: none; orphans: 2; =
white-space: normal; widows: 2; word-spacing: 0px; "><div =
style=3D"word-wrap: break-word; -khtml-nbsp-mode: space; =
-khtml-line-break: after-white-space; "><div>Christopher =
Majka</div><div>Nova Scotia Museum, 1747 Summer St., Halifax, Nova =
Scotia, Canada&nbsp; B3H 3A6</div><div><a =
href=3D"mailto:c.majka@ns.sympatico.ca">c.majka@ns.sympatico.ca</a></div><=
div><br class=3D"khtml-block-placeholder"></div></div><br =
class=3D"Apple-interchange-newline"></span> =
</div><br></div></body></html>=

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