首页> 美国卫生研究院文献>other >Effect of Type and Concentration of Ballasting Particles on Sinking Rate of Marine Snow Produced by the Appendicularian Oikopleura dioica
【2h】

Effect of Type and Concentration of Ballasting Particles on Sinking Rate of Marine Snow Produced by the Appendicularian Oikopleura dioica

机译:压载颗粒的类型和浓度对垂尾O科海洋积雪下沉速率的影响 ica

代理获取
本网站仅为用户提供外文OA文献查询和代理获取服务,本网站没有原文。下单后我们将采用程序或人工为您竭诚获取高质量的原文,但由于OA文献来源多样且变更频繁,仍可能出现获取不到、文献不完整或与标题不符等情况,如果获取不到我们将提供退款服务。请知悉。

摘要

Ballast material (organic, opal, calcite, lithogenic) is suggested to affect sinking speed of aggregates in the ocean. Here, we tested this hypothesis by incubating appendicularians in suspensions of different algae or Saharan dust, and observing the sinking speed of the marine snow formed by their discarded houses. We show that calcite increases the sinking speeds of aggregates by ~100% and lithogenic material by ~150% while opal only has a minor effect. Furthermore the effect of ballast particle concentration was causing a 33 m d-1 increase in sinking speed for a 5×105 µm3 ml-1 increase in particle concentration, near independent on ballast type. We finally compare our observations to the literature and stress the need to generate aggregates similar to those in nature in order to get realistic estimates of the impact of ballast particles on sinking speeds.
机译:建议压载物质(有机,蛋白石,方解石,成岩作用)影响聚集体在海洋中的下沉速度。在这里,我们通过在不同藻类或撒哈拉尘埃的悬浮液中孵化阑尾虫,并观察其废弃房屋形成的海洋积雪的下沉速度,来检验这一假设。我们显示方解石将聚集体的下沉速度提高了约100%,将成岩物质的下沉速度提高了约150%,而蛋白石的影响较小。此外,道ast颗粒浓度的影响导致沉降速度增加33 m d -1 ,持续5×10 5 µm 3 ml < sup> -1 的颗粒浓度增加,几乎与镇流器类型无关。最后,我们将我们的观察结果与文献进行比较,并强调需要生成与自然界相似的聚集体,以便获得对压载颗粒对沉没速度影响的真实估计。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
代理获取

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号