Originally Posted by macg
Just a note on semantics: From what I've heard, the auratus in Hawaii are currently classified as an Introduced Species, rather than an Invasive Species. The former denoting a species that has established a local population, but is not known to spread to a degree believed to cause damage to the environment, human economy or human health. (wikipedia for exact definitions)
"Potential impacts have been stated but no significant impact has been reported. Due to lack of information
, the certainty of assessment is low. More information is needed
to elevate the assessment to medium or high certainty." (emphasis mine)
Absence of evidence, and all that.