[Top] [All Lists]

Re: quantifying habitat with acoustics?

Subject: Re: quantifying habitat with acoustics?
From: Patrick Schneider <>
Date: Mon, 15 Apr 2002 08:38:42 -0700
Hi Tania,
 if what you want is something like an image reflecting the topography
 of your areas sea bottom, then probably the best will be to use a side
 scan sonar.
 However, if you want to obtain data on height and coverage of seaweeds
 in your area, together with a rough bathymetry of that area, then your
    best bet is using vertical acoustics.
 I recommend you have a look at the following sites:
 <a  href=""; 
rel="nofollow"></A> , particularly:
 <a  href=""; 
rel="nofollow"></A> and
 <a  href=""; 
 <a  href=""; 
rel="nofollow"></A> (see under 
 I have recently done two projects on SAV (Submerged Aquatic
 Vegetation) detection. In both cases this included also establishing
 bathymetric maps and the evaluation of bottom types. By the way, with
 the same tool you get also estimates of fish abundance and spatial
 distribution, so you can assess your entire system with one single
 tool. And it's cheaper than a multibeam...
 Feel free to contact me if you feel this is what you are interested
 in. I will be away from my office until April 22.
 Tania Siemens wrote:
  > Hello,
  > My name is Tania Siemens and I am studying the way in which fish 
 habitat is
  > changed by an invasive aquatic weed in a mangrove lagoon in the 
  > Islands.  I would like to use acoustics to characterize the vertical
  > structure of habitat.  I think it might be possible to lower a sideways
  > looking (small) acoustic device and record the images, which would
  > function as a index of habitat
  > structure.  This way I could quantitatively compare this habitat
  > structure (heterogeneity vs. homogeneity) to invaded (grass) and non
  > invaded
  > (mangroves) sites.
  > Do you know of any such acoustic devise that might work for me? 
 Can you
  > refer me to someone who has done a similar study or might be able 
 to give
  > me some direction?
  > Thank you,
  > Tania Siemens
  > Tania J. Siemens
  > Phone: (607) 255-3191
  > Graduate Student                                                 Fax:
  > (607) 255-0349
  > Department of Natural Resources                                Email:
  > Fernow Hall, Cornell University
  > Ithaca, NY  14853
                 IMPORTANT: If you use Micro$oft OUTLOOK,
         remove it from your computer to help reduce mail abuse.
                       If you cannot live without it:
    1. Remove my e-mail from its addressbook - Use a post-it note instead.
    2. Ask your local administrator how to configure it to make it safer.
 Dipl.-Biol. Patrick Schneider         tel/fax   +34-934 360 810
 C./San Antonio Maria Claret,186,4-2   cellular  +34-617 591 300
 08025 Barcelona                       [EMAIL PROTECTED]
 <a  href=""; rel="nofollow"></A>
 "Der vernünftige Mensch richtet sich in der Welt ein; aber der
    unvernünftige Mensch versucht, die Welt auf sich einzurichten -
    daher hängt der gesamte Fortschritt von den unvernünftigen Menschen 
    -- Manfred Rommel (*1928)

<Prev in Thread] Current Thread [Next in Thread>

The University of NSW School of Computer and Engineering takes no responsibility for the contents of this archive. It is purely a compilation of material sent by many people to the Bioacoustics-L mailing list. It has not been checked for accuracy nor its content verified in any way. If you wish to get material removed from the archive or have other queries about the archive e-mail Andrew Taylor at this address: andrewt@cse.unsw.EDU.AU