| multiple origins and incursions of the atlantic barnacle chthamalus proteus in the pacific. | chthamalus proteus, a barnacle native to the caribbean and western atlantic, was introduced to the pacific within the last few decades. using direct sequencing of mitochondrial dna (coi), we characterized genetic variation in native and introduced populations and searched for genetic matches between regions to determine if there were multiple geographical sources and introduction points for this barnacle. in the native range, we found great genetic differences among populations (max. f(st) = 0.6 ... | 2005 | 16202091 |