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Echinobase
ECB-ART-41584
Zygote 2010 May 01;182:103-7. doi: 10.1017/S0967199409990177.
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Ocean acidification reduces sperm flagellar motility in broadcast spawning reef invertebrates.

Morita M , Suwa R , Iguchi A , Nakamura M , Shimada K , Sakai K , Suzuki A .


Abstract
Ocean acidification is now recognized as a threat to marine ecosystems; however, the effect of ocean acidification on fertilization in marine organisms is still largely unknown. In this study, we focused on sperm flagellar motility in broadcast spawning reef invertebrates (a coral and a sea cucumber). Below pH 7.7, the pH predicted to occur within the next 100 years, sperm flagellar motility was seriously impaired in these organisms. Considering that sperm flagellar motility is indispensable for transporting the paternal haploid genome for fertilization, fertilization taking place in seawater may decline in the not too distant future. Urgent surveys are necessary for a better understanding of the physiological consequences of ocean acidification on sperm flagellar motility in a wide range of marine invertebrates.

PubMed ID: 20370935
Article link: Zygote


Genes referenced: LOC100887844