You might also consider direct measurements of 3D coordinate positions using a coordinate measuring machine. We have an appropriate device (FARO arm) for your size range at the Palaeontological Museum, University of Zuerich, and there are many other options.
Oyvind Hammer University of Oslo and University of Zuerich > 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? == Replies will be sent to list. For more information see http://life.bio.sunysb.edu/morph/morphmet.html.
