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sperm flagellar motility

Zygote (1)

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Ocean acidification reduces sperm flagellar motility in broadcast spawning reef invertebrates
Masaya Morita, Ryota Suwa, Akira Iguchi, Masako Nakamura, Kazuaki Shimada, Kazuhiko Sakai, Atsushi Suzuki
Journal:

Zygote / Volume 18 / Issue 2 / May 2010

Published online by Cambridge University Press:

20 November 2009, pp. 103-107
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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.