I'm a bit disappointed that no-one answered this message. It's not much about specimen collecting, but very relevant to human use of shellfish. I'm constantly amazed that local Filipino villagers regularly hunt Lambis lambis (Gang-a) - and I do myself, but there always seem to be plenty of them about - how? On Thu, 14 Sep 2006 02:37:14 -0400, Richard Parker <[log in to unmask]> wrote: >I am doing a bit of study of seashore foraging, and could do with some help >on estimating regeneration times for food shellfish, in particular: > >Lambis lambis >Tridacna gigas and squamosa >Cypraea tigris >Cassis cornuta > >ie >how quickly do they reach maturity ? >do they have swimming larvae that can spread easily ? >what are their depth ranges ? >if they are left totally alone, what would be their population density? > >Some of my findings to date are at my website: >http://www.coconutstudio.com/Shell%20Middens.htm > >Someone might also be able to advise the name of the weird spiny chiton >shown > at: >http://www.coconutstudio.com/Shoreline%20Foraging.htm > > >regards > >Richard > >---------------------------------------------------------------------- >[log in to unmask] - a forum for informal discussions on molluscs >To leave this list, click on the following web link: >http://listserv.uga.edu/cgi-bin/wa?SUBED1=conch-l&A=1 >Type your email address and name in the appropriate box and >click leave the list. >---------------------------------------------------------------------- ---------------------------------------------------------------------- [log in to unmask] - a forum for informal discussions on molluscs To leave this list, click on the following web link: http://listserv.uga.edu/cgi-bin/wa?SUBED1=conch-l&A=1 Type your email address and name in the appropriate box and click leave the list. ----------------------------------------------------------------------