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    Re: Noisy Sea Surface
    From: Keith Williams
    Date: 2003 Nov 15, 10:56 +0530

    In New Zealand, we hear this noise almost everywhere, when at rest - at
    least in the Northern (ie warmer) part of the country. Its very
    noticeable in the marina where I berth my boat - it has quite clear
    water (can see down at least three feet in even the worst of conditions)
    and lots of both tiny and larger (poss 1 metre?) fish; it is a blind bay
    so there is no significant flow. I think that where there is any
    significant stream the noise doesn't occur.
    We also enjoy occasions of amazing phosphorescence which displays
    individual fish down to a couple of metres, which makes me sure that
    this noise is not related to the presence of fish. Nor is it related to
    the presence of phosphorescence.
    Its pretty unnerving to hear such a lot of noise and not know what
    causes it. I hesitated to bring up this topic in this list, but now it
    on-going I would love to hear of any real diagnosis. Krill seems
    possible IF they have some scratching or munching abilities. In my
    desperation to conceive of a likely cause I even considered whether
    there might be a continuous process of semi-explosive decay of
    micro-organisms, which sometimes yields phosphorescence and sometimes
    This could well be a retirement project for me if there are as yet no
    definitive answers, lets see...
    Keith Williams

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