Periphyton: Autoradiography of Zinc-65 Adsorption

Science  01 May 1970:
Vol. 168, Issue 3931, pp. 576-577
DOI: 10.1126/science.168.3931.576


The major site of sorption of zinc-65 in natural, matlike periphyton is on the upper surface of the community. There is a diffusion gradient within the community. Expression of results from short-term spiking experiments should thus be presented on an areal rather than gravimetric basis.