Winnicki A., Tomasik L., 1976. “Spermatocrit” as a method for biological evaluation of fish sperm. Acta Ichthyol. Piscat. 6 (2): 3-8.
A volume of trout (Salmo trutta L.) spermatozoa relative a sperm volume unit (“spermatocrit”) was studied by means of a microhematocrit centrifuge. It was found out that the method allowed density differences between sperm of various individuals to be assessed quickly and precisely; an amount of water absorbed by spermatozoa during their activation can be measured by this method as well.