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首页> 外文期刊>Water, Air, and Soil Pollution >TESTING SCANDIUM METHOD TO QUANTIFY SUSPENDED PARTICLES ADHESION TO THE EXTERNAL SURFACE OF PERIPHYTON COMMUNITIES
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TESTING SCANDIUM METHOD TO QUANTIFY SUSPENDED PARTICLES ADHESION TO THE EXTERNAL SURFACE OF PERIPHYTON COMMUNITIES

机译:测试SC法量化附着在附生体外表面的悬浮颗粒

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摘要

Aquarium experiments were performed to quantify the inorganic fraction of suspended particles deposited on the external surface of aquatic biota. The mass of suspended particles retained on the surfaces of microalgae growing on submerged substrates and the algal biomass were determined by comparing the scandium content of suspended material with that in algal communities. Scandium, a predominantly soil-associated trace element, has been used as a 'tracer' for the inorganic component of suspended particles, because this element is geologically ubiquitous in soils, and it is recognized that it cannot cross natural membranes of plants and other organisms. The algal biomass determined using the scandium content was compared with biomass values calculated using phytopigments as estimates of periphyton biomass. The results indicate that the suspended particle mass adhering to the external periphyton surface may accounted for up to 55% of the total mass collected on submerged artificial substrates.
机译:进行水族箱实验以量化沉积在水生生物外表面上的悬浮颗粒的无机部分。通过将悬浮物质的with含量与藻类群落中的content含量进行比较,可以确定保留在淹没基质上的微藻表面和藻类生物量上保留的悬浮颗粒的质量。 dium是一种主要与土壤相关的微量元素,已被用作悬浮颗粒无机成分的“示踪剂”,因为该元素在地质上在土壤中普遍存在,并且公认它不能穿越植物和其他生物的天然膜。 。将使用the含量确定的藻类生物量与使用植物色素计算的生物量值进行比较,以估算植物周围生物量。结果表明,附着在浮游生物外部表面的悬浮颗粒质量可能占淹没在人工基质上的总质量的55%。

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