Data from: Contemporary distribution of non-native Chinook salmon (Oncorhynchus tshawytscha) in South America

The dataset incorporates information on Chinook salmon occurrences by
basin in South America, which was obtained from the literature and from
unpublished information obtained from research monitoring efforts
conducted in Chile, Argentina, and Uruguay. The information was divided
into two periods: historical (prior to 2006) and contemporary information
(2006 onwards). Year or range of years in which the observation was taken
was also included. This dataset was used to construct Fig. 1 of the
manuscript "Contemporary distribution of non-native Chinook salmon
(Oncorhynchus tshawytscha) in South America".