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Ocean acidification changes the male fitness landscape

Title: Ocean Acidification Changes The Male Fitness Landscape.
Name(s): Campbell, Anna L., author
Levitan, Don R., author
Hosken, David J., author
Lewis, Ceri, author
Type of Resource: text
Genre: Text
Date Issued: 2016-08-17
Physical Form: computer
online resource
Extent: 1 online resource
Language(s): English
Abstract/Description: Sperm competition is extremely common in many ecologically important marine taxa. Ocean acidification (OA) is driving rapid changes to the marine environments in which freely spawned sperm operate, yet the consequences of OA on sperm performance are poorly understood in the context of sperm competition. Here, we investigated the impacts of OA (+ 1000 mu atm pCO(2)) on sperm competitiveness for the sea urchin Paracentrotus lividus. Males with faster sperm had greater competitive fertilisation success in both seawater conditions. Similarly, males with more motile sperm had greater sperm competitiveness, but only under current pCO(2) levels. Under OA the strength of this association was significantly reduced and there were male sperm performance rank changes under OA, such that the best males in current conditions are not necessarily best under OA. Therefore OA will likely change the male fitness landscape, providing a mechanism by which environmental change alters the genetic landscape of marine species.
Identifier: FSU_libsubv1_wos_000381496800001 (IID), 10.1038/srep31250 (DOI)
Keywords: arenicola-marina, egg size, fertilization success, gamete age, motility, near-future levels, ph, sea-urchin, spawning marine invertebrate, sperm competition
Publication Note: The publisher’s version of record is available at
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Owner Institution: FSU
Is Part Of: Scientific Reports.
Issue: vol. 6

Choose the citation style.
Campbell, A. L., Levitan, D. R., Hosken, D. J., & Lewis, C. (2016). Ocean Acidification Changes The Male Fitness Landscape. Scientific Reports. Retrieved from