You are welcome Felicia. Wish you the best with your
research.
Shelling regards, Carlos

--- Felicia Zahida <[log in to unmask]> wrote:
> Dear Carlos,
>
> Sorry, the line was so bad so that I could not
> respond
> you immediatelly.
>
> Thanks for your information, it seems that you were
> done similar research before ?
>
> I'll try the best using your suggestion. thank you.
>
> Felicia
>
> --- Carlos Afonso <[log in to unmask]> wrote:
> > Hello Felicia,
> >
> > For this type of analysis with shrimp, one
> normally
> > uses individual total and carapace length in
> > millimetres and, individual weight in grams.  I
> > still
> > haven’t read similar publications related with
> > seashells but I’m sure there are at least a few.
> Any
> > way I suspect that the essential data you will
> need
> > is
> > the total height and width (e.g. for a Cypraea).
> > Knowing which individuals are mature or immature
> is
> > relevant but not essential. If you measure a large
> > quantity of individuals that represent all sizes
> of
> > the existing stock, FISAT will give you more
> details
> > on the parameters you are seeking for. What you
> must
> > find out thought is the longevity for the specie
> or
> > species you are working with, for comparison. If
> now
> > works exist, consider yours as a first contribute;
> > sure more will come out after woods :-).
> >
> > I suggest you contact CSIRO Marine Laboratories.
> PO
> > Box 120. Cleveland. 4163. Australia. They have
> some
> > pretty good publications with microcomputer
> > programs,
> > like FISAT, for local shrimp stocks. They might
> also
> > have some publications related with shellfish;
> it’s
> > worth trying for.
> >
> > Also try to acquire, Sparre, P. & Venema, S. C.,
> > (1998) – Introduction to tropical fish stock
> > assessment. FAO FISHERIES TECHNICAL PAPER 306/1.
> > Part
> > 1: Manual, Rev.2. FAO. Rome, 407 p. This
> publication
> > might also help you out with these and other
> dough’s
> > for your work.
> >
> > Wish you the best of luck with your work and hope
> > you
> > find good results so that one day you can tell us
> > all
> > about them, her on the list.
> > The best of regards,
> > Carlos Afonso from South Portugal
> >
> >
> >
> >
> >
> >
> > --- Felicia Zahida <[log in to unmask]> wrote:
> > > Dear All,
> > >
> > > I do interest to do some stock analysis on
> shells,
> > > since there is a tendency to harvest shells as
> > much
> > > as
> > > possible in our beaches areas.
> > >
> > > My surfing resulting in the availability of
> stock
> > > analysis program called FISAT 2000 (FAO-ICLARM
> > Stock
> > > Analaysis Tools) released by FAO and ICLARM.
> This
> > > program originally designed to fishes and
> > lobsters.
> > >
> > > Please respond me immediatelly if you do have an
> > > experience in this case of study. My question is
> > > what
> > > shells character(s) should I use to determine
> > > whether
> > > my shells is mature or young ? Is the aperture
> > width
> > > ?
> > > or what ? Shells width? shells lengths?
> > >
> > > Thank you for your kind response in advance.
> > >
> > > Felicia Zahida
> > > Faculty of Biology
> > > Atma Jaya Yogyakarta University
> > > Jl. Babarsari 44
> > > Yogyakarta 55281 Indonesia
> > > [log in to unmask]
> > > [log in to unmask]
> > >
> > >
> > >
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