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This bioluminescent bay is actually on the north coast, near Fajardo, Puerto Rico. It's called Laguna
Grande, and is part of the Cabezas de San Juan Natural Reserve. The bioluminescence is actually far
above and beyond what is seen in Parguera these days, and is equivalent to Mosquito Bay in Vieques,
Puerto Rico. It is truly amazing, and if you have a chance to come and see it, I'm sure you'll agree.
Thanks to all for your comments, suggestions and help regarding the fish sounds.
--Craig
----- Original Message -----
From: Bonnie McCay
Sent: 3/30/2005 12:45:25 PM
To: [log in to unmask]
Subject: Re: Doppler effect and squeaky door fish
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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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