Dear colleagues,

I am currently thinking of using a morphometric analysis in order to
evaluate ontogenic growth patterns in a large sized fish species.

Most of the papers I have read on large fish morphometry rely on
box-truss distances and use calliper measurements, or use digital images
and geometric morphometrics methods, considering mostly a 2D view.
However, I am experiencing some difficulties in establishing a
methodology that can be correctly applied to juvenile (e.g. 200 mm) and
adult (over 90 cm) forms, where the 3D component may play a significant
role and unbent 2D images are difficult to acquire. Can this be made by
considering some kind of 3D truss in calliper measurements? is there a
specific procedure for capturing useful digital images of fish within
such large size range?

Can anyone give me an advice on this issue?


Thanks,

Nuno

_________________________________________
Nuno Prista
Instituto de Oceanografia,
Faculdade de Ci=EAncias da Universidade de Lisboa
1749-016 Lisboa,
Portugal
Phone: +351 21 750 00 00 (then 20303)
Fax:     +351 21 750 00 09
Email:   [EMAIL PROTECTED]
==
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For more information see http://life.bio.sunysb.edu/morph/morphmet.html.

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