Maurice A. Lock

TL;DR: Morphological evidence suggests grazing of the epilithon by invertebrates, and clearly shows that the cellular components of this sessile community grow in distinct microcolonies within a continuous fibrous anionic matrix composed of bacterial and algal glycocalyces.

TL;DR: In this article, the potential importance of soil water as a source of dissolved organic carbon (DOC) in headwater streams is addressed by comparing organic chemistries of soil waters in the riparian zone with an adjacent stream at an upland site in mid-Wales during one year.

TL;DR: The factors affecting the measurement of electron transport system (ETS) activity in river biofilm through the reduction of 2-(p-iodophenyl)-3-(p-,p-nitrophenyl)-5-phenyl tetrazolium chloride (INT) to iodonitrotetramolium formazan (INT-formazan) have been studied.

TL;DR: It is suggested that the “microcosms” of Cocconeis and their underlying cells not only serve as an inoculum to recolonize the surface when conditions permit but enhance immigration by interrupting flow patterns across the surface.

TL;DR: The oligotrophic biofilm was found to contain about twice as much extracellular esterase activity as the more eutrophic River Clywedog biofilm, although these activities also fluctuated during the colonization period.