New Zealand Journal of Marine and Freshwater Research abstracts
Morphometric variation in Haliotis iris (Mollusca:Gastropoda): analysis
of 61 populations
PAUL E. McSHANE
DAVID R. SCHIEL*
STEVE F. MERCER
TALBOT MURRAY
Fisheries Research Centre
MAF Fisheries
Greta Point
P.O. Box 297
Wellington, New Zealand
*Present address, Zoology Dept, University of Canterbury, Private Bag 4800,
Christchurch, New Zealand.
Abstract Relationships of shell height, shell width, shell
weight, foot weight, dry foot weight, and total weight were examined with shell
length for Haliotis iris from different localities. Mean length varied
among 61 localities explaining more than 70% of the variation in the other
parameters which covaried with length. Significant sources of variation in mean
length included latitude (sea surface temperature) and relative exposure.
Variation in all morphometric parameters occurred among localities but such
variation, although significant, was generally not large (< 10 %
of mean values). Although the spatial scales examined included 100s of km, the
largest morphometric variation shown was between neighboring localities (200 m
apart). This and the high residual variation in any morphometric parameter for
H. iris from any location indicated that morphometric variation occurred
over small spatial scales. The suggestion that some localities of H.
iris were "stunted" with small average lengths and had individuals with
relatively peaked shells and greater weights compared with those from other
localities, was not supported by our results.
Keywords abalone; Haliotis iris; morphometric
variation; populations; growth; New Zealand
New Zealand Journal of Marine and Freshwater Research, 1994: Vol. 28:
357-364
0028-8330/94/2804-0357 $2.50/0 (c) The Royal Society of New Zealand
1994
PDF file of entire paper: medium quality (2128K); (scanned from paper original: notes about this process)
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