Morphology and ultrastructure of Siberian sturgeon (<i>Acipenser baerii</i>) spermatozoa using scanning and transmission electron microscopy

Abstract

A principal components analysis explained the individual morphological variation fairly well. Of the total accumulated variance, 41.45% was accounted for by parameters related to the head and midpiece of the sperm and the length of the flagellum. Comparing the present study with previous studies of morphology of sturgeon spermatozoa, there were large inter- or intra-specific differences that could be valuable taxonomically.