Echinoid Egg Fertilization in Warmed and Acidified Seawater
Ho, M.A., Price, C., King, C.K., Virtue, P. and Byrne, M. 2013. Effects of ocean warming and acidification on fertilization in the Antarctic echinoid Sterechinus neumayeri across a range of sperm concentrations. Marine Environmental Research 90: 136-141.
The five researchers' work confirmed "the importance of considering both ocean warming and acidification," noting that "decreased pH did not affect fertilization" but that "warming enhanced fertilization ... likely through stimulation of sperm motility and reduced water viscosity." And as expressed in the concluding sentence of their paper's abstract, Ho et al. state that their results indicate that "fertilization in S. neumayeri, even at low sperm levels potentially found in nature, is resilient to near-future ocean warming and acidification."
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