Species that are considered uncertain risk need a more in-depth assessment beyond the Risk Summary to better define the species’ risk to U.S. environments.
The history of invasiveness for Alosa chrysochloris is not documented. There are records of this species introduced outside its native range. Some introductions seem to have resulted in reproducing populations but there were no records found of any impacts of these introductions. The climate match is high. The majority of the areas with a high match are within the native range of Alosa chrysochloris; however there are areas with high match outside of the native range, particularly the Great Lakes basin and the East Coast. The certainty of assessment is medium. The overall risk assessment category is uncertain. This species is native to a very large portion of the United States which makes interpretation of the climate match results difficult.
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Uncertain Risk
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