Data by waterbody

Heather Picot Walton heather.walton at
Tue Apr 11 21:35:44 EDT 2000

Dear Colleague:

I write to request the following information for as many waterbodies as
possible (including streams, rivers, lakes, bays, estuaries, seas,
oceanside coastal zones, continental shelves, open oceans, etc):

1) Surface area of each waterbody (square kilometers).
   (I particularly need information on small lakes and streams.)
2) Number of native species.
3) Number of non-native species.
4) Number of extinct/extirpated species (during historical time).
5) Literature references or contacts.

I recognize that exact numbers may not be available-- 
even estimates and taxonomically-specific (for example, fish only) personal
communications would be VERY helpful.  

Please e-mail/postal mail/fax/phone me any ideas, along with unpublished
data, reprints, and other publications (address below).  

This data will be compiled in a forthcoming book chapter, which we
think will be useful to anyone interested in the present state of our
aquatic systems.  

Thank you in advance for your help,
Heather P. Walton

  Heather P. Walton
  Doctoral student
  Nicholas School of the Environment
  Duke University Marine Laboratory     Email: heather.walton at
  135 Duke Marine Lab Road              Phone:(252)504-7530
  Beaufort, NC, USA 28516-9721          Fax:(252)504-7648

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