The sperm motility pattern in ecotoxicological tests. The CRYO-Ecotest as a case study

Ecotoxicology and Environmental Safety
Adele FabbrociniGiovanni Sansone

Abstract

Changes in environmental stressors inevitably lead to an increasing need for innovative and more flexible monitoring tools. The aim of this work has been the characterization of the motility pattern of the cryopreserved sea bream semen after exposure to a dumpsite leachate sample, for the identification of the best representative parameters to be used as endpoints in an ecotoxicological bioassay. Sperm motility has been evaluated either by visual and by computer-assisted analysis; parameters concerning motility on activation and those describing it in the times after activation (duration parameters) have been assessed, discerning them in terms of sensitivity, reliability and methodology of assessment by means of multivariate analyses. The EC50 values of the evaluated endpoints ranged between 2.3 and 4.5ml/L, except for the total motile percentage (aTM, 7.0ml/L), which proved to be the less sensitive among all the tested parameters. According to the multivariate analyses, a difference in sensitivity among "activation" endpoints in respect of "duration" ones can be inferred; on the contrary, endpoints seem to be equally informative either describing total motile sperm or the rapid sub-population, as well as the assessment methodo...Continue Reading

References

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Citations

Jun 18, 2017·Ecotoxicology and Environmental Safety·Adele FabbrociniRaffaele D'Adamo
Mar 12, 2018·Environmental Science and Pollution Research International·Tímea KollárÁkos Horváth
Apr 10, 2018·Reproduction, Fertility, and Development·Gerhard van der HorstJohn D D Bishop
May 24, 2018·Reproduction : the Official Journal of the Society for the Study of Fertility·F Buchelly ImbachíA Cesari
Jul 26, 2018·Fish Physiology and Biochemistry·Tímea KollárÁkos Horváth
Feb 28, 2021·Marine Environmental Research·Adele FabbrociniRaffaele D'Adamo

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