Abstract:The volutid gastropod Zidona dufresnei is an important fishery resource from the Southwestern Atlantic Ocean. This species exhibits strong interpopulation differences in life history features, which lead to postulate the existence of two morphotype ('normal' and 'dwarf'). In this study, we combine and compare traditional and geometric morphometrics to capture shell shape variation of Z. dufresnei among three populations from Mar del Plata (37° S) to San Matías Gulf (42° S) to test the hypothesis that the pheno… Show more
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