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| Catherine, A; Troussellier, Marc; Bernard, C. |
| This study describes the design and application of a stratified sampling strategy of waterbodies to assess and analyze the distribution of cyanobacteria at a regional scale (Ile-de-France, IDF). Ten groups of hydrographical zones were defined within the IDF on the basis of their anthropogenic and geomorphologic characteristics. Sampling effort (n = 50) was then randomly allocated according to the number of waterbodies in each group. This sampling strategy was tested in August 2006, using a field probe to estimate total phyto-plankton as well as cyanobacteria biomasses. The sampled waterbodies exhibited a wide range of phytoplankton (<1-375 mu g equiv.Chla L-1) and cyanobacteria biomasses (<1-278 mu g equiv. Chla L-1). 72% of the waterbodies in the... |
| Tipo: Text |
Palavras-chave: Sampling strategy; Land use; Lakes and reservoirs; Geographic information system; Cyanobacteria. |
| Ano: 2008 |
URL: http://archimer.ifremer.fr/doc/2008/publication-5302.pdf |
