Abundance of the giant diatom ethmodiscus in the southwest atlantic ocean and central pacific gyre
Abundance of the giant diatom ethmodiscus in the southwest atlantic ocean and central pacific gyre
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DOI：
10.1080/0269249x.1993.9705248
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发表时间：
1993
期刊：
影响因子：
1.8
通讯作者：
T. Villareal
中科院分区：
文献类型：
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作者：
T. Villareal
在中太平洋环流和西南大西洋/加勒比海的样品中测定了巨大硅藻筛盘藻的丰度。太平洋的平均丰度为0.08 cells m−3。大西洋/加勒比海的丰度范围为0.03-4.7个细胞m−3，具有广泛的（150倍）空间和时间变异性。三次为期两年的巡航的平均丰度分别为0.14、0.77和1.85个细胞m−3。筛属雷克斯（Rattray）Wiseman和Hendey是所有样本中的优势筛属物种从巴哈马到卡丽鲍礁，伯利兹。在太平洋5400米处的沉积物捕集器中，观察到了明显的活细胞。根据这些新资料，简要讨论了深海沉积物中筛藻软泥的起源。
Abundance of the giant diatom Ethmodiscus was determined in samples from the central Pacific gyre and southwest Atlantic Ocean/Caribbean Sea. Pacific Ocean abundance averaged 0.08 cells m−3 at the surface. Atlantic Ocean/Caribbean Sea abundance ranged from 0.03–4.7 cells m−3 with extensive (150-fold) spatial and temporal variability. Average abundances for three cruises over 2 yr were 0.14, 0.77, and 1.85 cells m−3. Ethmodiscus rex (Rattray) Wiseman & Hendey was the dominant Ethmodiscus species in all samples from the Bahamas to Carrie Bow Cay, Belize. Apparently viable cells were noted in both upward and downward facing sediment traps at 5400 m in the Pacific Ocean. The origin of Ethmodiscus oozes in deep-sea sediments is briefly discussed in relation to these new data.