The stone brusher, a new sampler for submerged epilithic material in shallow streams and lakes
2006 (English)In: Hydrobiologia, ISSN 0018-8158, E-ISSN 1573-5117, Vol. 560, no 1, 385-392 p.Article in journal (Refereed) Published
The Stone Brusher is designed to take qualitative or semi-quantitative samples of material attached tostones at 7–50 cm depth in running or stagnant waters. The epilithic material is dislodged from the stonesurface with a rotating brush enclosed in a chamber and the material is drawn up directly into the samplebottle with an air-cylinder. The operator takes a sample quickly and without putting hands into the water.The sampling area is about 28 cm2. The sampler is made of plastic, stainless steel and aluminium andweighs 3.1 kg. The equipment is robust and easily handled and it is constructed to meet the demand forstandardized sampling for research and environmental monitoring and to improve working conditions forsampling personnel. The equipment allows sampling from bedrock and large stones that cannot be liftedfrom the bottom and it can be used for reliable sampling also in fast-flowing streams where the dislodgedmaterial is easily flushed away. Using Near-Infrared Spectroscopy and diatom analyses, this new sampler isevaluated in comparison to the recognized toothbrush method, which indicates that the Stone Brusherreduces sampling variability compared with the toothbrush method.
Place, publisher, year, edition, pages
The Hague: Junk , 2006. Vol. 560, no 1, 385-392 p.
algae, environmental monitoring, epilithic, lakes, sampler, streams
IdentifiersURN: urn:nbn:se:umu:diva-2420DOI: 10.1007/s10750-005-1514-5OAI: oai:DiVA.org:umu-2420DiVA: diva2:140403