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海洋酸盐的上升运输通过迁移藻

Tracy A Villareal¹, Cynthia Pilskaln², Mark Brzezinski³

¹Marine Science Institute, The University of Texas at Austin, 750 Channel View Drive, Port Aransas, Texas 78373, USA.

|April 19, 2018

概括

海洋中的大型浮游生物垂直迁移, 这些曾经被低估的藻会大大增加对海面的酸盐运输,

科学领域:

海洋生物学
海洋学
植物浮游生物生态

背景情况:

寡质环流是垂直迁移的大型浮游生物的所在地.
这种迁移运输酸盐,促进新的生产.
鉴于这些细胞的稀有性和不可见性,量化这种贡献是具有挑战性的.

研究的目的:

量化Rhizosolenia藻对北太平洋酸盐运输的贡献.
评估这些地毯作为新的来源的重要性.

主要方法:

远程视频观测被用于研究树脂.
观测覆盖了北太平洋中部的上方150米.
计算了植物浮游生物介导的酸盐运输.

主要成果:

植物介导的酸盐运输量增加了8倍.
航行平均值显示的质流量为18-97μmol N m−2 d−1.
在各个站点,运输达到171μmolNm−2d−1,占出口产量的59%.

结论:

里索索利尼亚是一种至关重要的,以前未被采样的新源.
这种上升的营养物质运输对区域元素循环产生重大影响.
大型浮游生物的垂直迁移对海洋生产力起着至关重要的作用.

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