The effect of dissolved copper on the increase in length of four species of intertidal fucoid algae |
| |
| Authors: | Tor Strömgren |
| |
| Institution: | University of Trondheim, Royal Norwegian Society of Sciences and Letters, The Museum, Erling Skakkes gt. 47B, N-7000 Trondheim, Norway |
| |
| Abstract: | The growth of Pelvetia canaliculata (L.) Dec. et Thur., Fucus spiralis L., Fucus vesiculosus L. and Fucus serratus L. is measured in various concentrations of copper (12–970 μg/litre) during a period of ten days. Significant reductions in growth were observed at 12 μg/litre of copper added for P. canaliculata and F. spiralis, at 25 μg/litre for F. serratus and at 50 μg/litre for F. vesiculosus. There is a linear relationship between the percentage reduction (z) in growth rate and the product of time (x) and concentration (y), giving the equation z = kx × xy. The constant k is specific and may be used as a measure of resistance capacity to copper exposure. When previous data on Ascophyllum nodosum (L.) Le Jolis are included the five large Fucoids in the intertidal area may be ranked as follows according to their resistance capacity: . |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
