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information on Chinook salmon occurrences by basin in South America, which was obtained from the literature and from unpublished information obtained from research monitoring efforts conducted in Chile, Argentina, and Uruguay.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America\"., Adult Chinook salmon occurrences in South America were gathered from peer-reviewed journal articles and unpublished information obtained from research monitoring efforts conducted in Chile (Millennium Nucleus of Austral Invasive Salmonids, INVASAL), Argentina (CONICET), and Uruguay (National Direction of Aquatic Resources, DINARA, MGAP) between 2006 and 2022. For our literature review, we used the keywords “Oncorhynchus tshawytscha”, or “non-native Chinook salmon”, and “Distribution”, or “South America”, or “Patagonia”. Research monitoring programs included intense field sampling efforts in freshwater and estuarine environments (i.e., netting, angling, trolling, electrofishing, and environmental DNA), opportunistic and pilot sampling efforts in marine environments, as well as recreational fishery records with posterior field surveys or visual (photos or videos) confirmation.
For each Chinook salmon occurrence, we incorporated information about the name of the basin (location), its geogr..., This file can be opened with Microsoft Excel or any program that can read .xlsx files.