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首页> 外文期刊>Environmental Science & Technology >Effects of CO_2 and Seawater Acidification on the Early Stages of Saccharina japonica Development
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Effects of CO_2 and Seawater Acidification on the Early Stages of Saccharina japonica Development

机译：CO_2和海水酸化对日本糖藻发育早期的影响

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摘要

In this paper, we demonstrated that ocean acidification (OA) had significant negative effects on the microscopic development of Saccharina japonica in a short-term exposure experiment under a range of light conditions. Under elevated CO_2, the alga showed a significant reduction in meiospore germination, fecundity, and reproductive success. Larger female and male gametophytes were noted to occur under high CO_2 conditions and high light magnified these positive effects. Under conditions of low light combined with high P_(CO_2), the differentiation of gametophytes was delayed until the end of the experiment. In contrast, gametophytes were able to survive after having been subjected to a long-term acclimation period, of 105 days. Although the elevated P_(CO_2) resulted in a significant increase in sporophyte length, the biomass abundance (expressed as individual density attached to the seed fiber) was reduced significantly. Further stress resistance experiments showed that, although the acidified samples had lower resistance to high light and high temperature conditions, they displayed higher acclimation to CO_2-saturated seawater conditions compared with the control groups. These combined results indicate that OA has a severe negative effect on S. japonica, which may result in future shifts in species dominance and community structure.
机译：在本文中，我们证明了在一系列光照条件下的短期暴露实验中，海洋酸化（OA）对日本糖蜜的微观发育具有显着的负面影响。在CO_2升高的情况下，藻类显示出中孢子萌发，繁殖力和繁殖成功的显着减少。注意到较大的雌雄配子体在高CO_2条件下发生，强光放大了这些积极作用。在弱光和高P_（CO_2）结合的条件下，配子体的分化被推迟到实验结束。相反，配子体在经历了105天的长期适应后便能够存活。尽管升高的P_（CO_2）导致孢子体长度显着增加，但生物量丰度（表示为附着在种子纤维上的单个密度）显着降低。进一步的抗应力实验表明，尽管酸化的样品对强光和高温条件的抵抗力较低，但与对照组相比，它们对CO_2饱和海水条件的适应性更高。这些综合结果表明，OA对日本血吸虫具有严重的负面影响，这可能会导致未来物种优势和群落结构发生变化。

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  • 来源
    《Environmental Science & Technology》 |2015年第6期|3548-3556|共9页
  • 作者

    Dong Xu; Dongsheng Wang; Bin Li; Xiao Fan; Xiao W. Zhang; Nai H. Ye; Yitao Wang; Shanli Mou; Zhimeng Zhuang;

  • 作者单位

    Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, Shandong 266071, China;

    College of Marine Science and Engineering, Qingdao Agricultural University, Qingdao, Shandong 266109, China;

    Shandong Marine Resource and Environment Research Institute, Yantai, Shandong 264006 China;

    Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, Shandong 266071, China;

    Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, Shandong 266071, China;

    Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, Shandong 266071, China;

    College of Marine Science and Engineering, Qingdao Agricultural University, Qingdao, Shandong 266109, China;

    Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, Shandong 266071, China;

    Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, Shandong 266071, China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
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