Effects of low pCO2 conditions on sea urchin larval size.
Effects of low pCO2 conditions on sea urchin larval size.
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低 pCO2 条件对海胆幼虫大小的影响。
DOI：
10.1111/maec.12044
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发表时间：
2013
期刊：
影响因子：
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通讯作者：
Tsuneo Ono and Yoshihisa Shirayama
中科院分区：
文献类型：
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作者：
Ryota Suwa;Yukihiro Nojiri;Tsuneo Ono and Yoshihisa Shirayama
海洋酸化是大气中二氧化碳浓度增加对海洋钙化物种的影响造成的，预计这种影响今后将更加明显。到本世纪末，大气中的pCO 2水平将比工业化前的280 ppm水平翻一番。然而，工业化前pCO2水平对海洋生物的影响在很大程度上仍然未知。在这项研究中，我们调查了工业化前的pCO2条件对海胆pluteus幼虫大小的影响，众所周知，海胆容易受到海洋酸化的影响。在工业化前的pCO2水平下饲养的美花刺水蚤幼虫的大小相对于现在的显著增加，并且在暴露3天后，随着pCO2水平从工业化前的水平增加到未来的水平，厚刺花蝽的大小减小。在这项研究中，它表明，海胆幼虫响应工业化前的pCO2水平。即使在目前的pCO2水平下，海洋酸化也可能影响一些敏感的海洋钙化物。
Ocean acidification results from an increase in the concentrations of atmospheric carbon dioxide (CO2) impacts on marine calcifying species, which is predicted to become more pronounced in the future. By the end of this century, atmospheric pCO2levels will have doubled relative to the pre‐industrial levels of 280 ppm. However, the effects of pre‐industrial pCO2levels on marine organisms remain largely unknown. In this study, we investigated the effects of pre‐industrial pCO2conditions on the size of the pluteus larvae of sea urchins, which are known to be vulnerable to ocean acidification. The larval size ofHemicentrotus pulcherrimussignificantly increased when reared at pre‐industrial pCO2level relative to the present one, and the size ofAnthocidaris crassispinalarvae decreased as the pCO2levels increased from the pre‐industrial level to the near future ones after 3 days' exposure. In this study, it is suggested that echinoid larvae responded to pre‐industrial pCO2levels. Ocean acidification may be affecting some sensitive marine calcifiers even at the present pCO2level.