| diversity and distribution of methanotrophic archaea at cold seeps. | in this study we investigated by using 16s rrna-based methods the distribution and biomass of archaea in samples from (i) sediments above outcropping methane hydrate at hydrate ridge (cascadia margin off oregon) and (ii) massive microbial mats enclosing carbonate reefs (crimea area, black sea). the archaeal diversity was low in both locations; there were only four (hydrate ridge) and five (black sea) different phylogenetic clusters of sequences, most of which belonged to the methanotrophic archa ... | 2005 | 15640223 |