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Yes, the Baia dos Fosforos in La Parguera, Puero Rico, is a spectacular
wonder. Except when the moon is full. There is also great concern that
development in the area, especially the dry hills above the bay, is changing
the conditions for the phosporescent organisms.
Bonnie
Bonnie J. McCay
Board of Governors Distinguished Service Professor
Department of Human Ecology
Cook College, Rutgers the State University
55 Dudley Road
New Brunswick, New Jersey 08901
USA
phone: 732-932-9153 x 314 or 301
fax: 732-932-6667
email: [log in to unmask]
http://cook.rutgers.edu/~humeco/
-----Original Message-----
From: Scientific forum on fish and fisheries
[mailto:[log in to unmask]] On Behalf Of Bill Silvert
Sent: Wednesday, March 30, 2005 11:17 AM
To: [log in to unmask]
Subject: Doppler effect and squeaky door fish
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I'm not sure what you mean by softer, but the Doppler effect refers to a
lowering of the frequency of sound, not a decrease in volume.
For those who haven't seen it, this bioluminescence in what I believe is
called La Baia dos Fosforos is really spectacular - this is not the piddly
glow we often think of as phosphorescence, nor even the light of massed
fireflies, but almost fireworks in the water.
Bill Silvert
----- Original Message -----
From: <[log in to unmask]>
To: <[log in to unmask]>
Sent: Tuesday, March 29, 2005 2:32 PM
Subject: squeaky door fish
> Kayakers observing bioluminescence (obviously at night) in a bay in
> eastern Puerto Rico are reporting fairly loud sounds they hear from
> their kayaks as "sounding like a squeaky door being
> opened and closed" that gets louder as the organism (presumably a fish or
> school of fish)
> approaches, and due to Doppler effects, softer after it passes by.
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