Bray, R. A.

Cribb, T. H.

Hall, K.

University of Queensland eSpace

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Gyliauchenid Trematodes and Morphometrics: Is size phylogenetically informative?
Article · September 2000
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Kathryn Hall
Queensland Museum
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Thomas H Cribb
The University of Queensland
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Rodney A Bray
Natural History Museum, London
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Cite abstract as: 
Hall, K.A., Cribb, T.H. & Bray, R.A. (2000). Gyliauchenid trematodes and morphometrics: is 
size phylogenetically informative? Joint meeting of the New Zealand Society for Parasitology 
and Australian Society for Parasitology, September, 2000. 
 
Gyliauchenid trematodes and morphometrics: is size 
phylogenetically informative? 
 
Kathryn A. Hall, Thomas H. Cribb and Rodney A. Bray 
 
Abstract: 
Gyliauchenid trematodes have been collected from herbivorous fishes from the Great Barrier 
Reef, Ningaloo Reef, New Caledonia, and French Polynesia.  The taxonomic work arising from 
these collections has generated a large amount of morphometric data for at least 25 species of 
gyliauchenid.  These data were coded for use in a cladistic analysis.  The use of morphometric 
data in cladistic analyses is still quite controversial; e.g. are continuous data amenable to (able to 
be efficiently coded for) cladistic treatment? and are these data phylogenetically informative?  
We performed two morphometric cladistic analyses; the first based on gap coding and the second 
using a gap-weighting method.  Each analysis was then subjected to standard methods of 
parsimony.  In addition to these cladistic methods, we generated phenograms using multivariate 
cluster techniques.  We assessed the performance of both the cladistic and phenetic approaches 
to the treatment of morphometric data by comparison with phylogenies inferred using sequence 
information from both mitochondrial and ribosomal genes.  Preliminary analysis indicates that 
morphometric data has a considerable capacity for resolving phylogenies at the specific level. 
 
 
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Gyliauchenid Trematodes and Morphometrics: Is size phylogenetically informative?

https://espace.library.uq.edu.au/view/UQ:147492/UQ147492_Abstract.pdf

Gyliauchenid Trematodes and Morphometrics: Is size phylogenetically informative?

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