TEMPORAL AND SPATIAL ABUNDANCE OF NAKED AMEBAS (GYMNAMOEBAE) IN MARINE BENTHIC SEDIMENTS OF THE CLYDE-SEA AREA, SCOTLAND
TEMPORAL AND SPATIAL ABUNDANCE OF NAKED AMEBAS (GYMNAMOEBAE) IN MARINE BENTHIC SEDIMENTS OF THE CLYDE-SEA AREA, SCOTLAND
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DOI：
10.1111/j.1550-7408.1995.tb01624.x
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发表时间：
1995-11-01
影响因子：
2.2
通讯作者：
ROGERSON, A
中科院分区：
文献类型：
--
作者：
BUTLER, H;ROGERSON, A
1991年对苏格兰克莱德海域沉积物中底栖裸变形虫的丰度进行了研究。选择了四个不同的沉积物粒度和有机碳含量的网站进行研究。变形虫是通过富集培养方法计数的，发现其数量很重要，有一次达到了14，883变形虫/cm（3）的密度。在较细的沉积物中，它们最丰富，并且在时间上最稳定，平均为2，224个细胞/cm（3），在桑迪沉积物中，它们更低，变化更大，全年平均为874个细胞/cm（3）。一般来说，变形虫最丰富的表层沉积物层。记录了大约70种不同的形态类型，61%的所有变形虫的长度小于10 μ m。这是第一次详细的定量研究底栖海洋gymanamoeulae和裸变形虫和鞭毛虫是在该地区的沉积物中占主导地位的间隙动物。此外，裸泳动物在原生动物生物量总量（不包括有孔虫）中所占比例最大，显然需要在今后的海底碳流模型中加以考虑。
The abundances of benthic naked amoebae in the sediments of the Clyde Sea Area, Scotland, were studied throughout 1991. Four sites differing in sediment grain size and organic carbon content were chosen for study. Amoebae were enumerated by enrichment cultivation methods and found to be numerically important, attaining densities of up to 14,883 amoebae/cm(3) on one occasion. They were most abundant, and temporally stable, in finer sediments where they averaged 2,224 cells/cm(3) and lower and more variable in the sandy sediments, averaging 874 cells/cm(3) throughout the year. In general, amoebae were most abundant in the surface sediment layers. Around 70 different morphotypes were recorded, and 61% of all amoebae counted were less than 10 mu m in length. This is the first detailed quantitative study of benthic marine gymanamoebae and shows that naked amoebae and flagellates are numerically the dominant interstitial fauna in sediments of this area. Moreover, the gymnamoebae comprised the largest proportion of total protozoan biomass (excluding foraminiferans) and clearly need to be considered in future models of benthic carbon flow.