Table 1.

Top 10 most invasive species in our dataset, as defined by an invasiveness index resulting from a combination of colonization (% of total sampled sites where present) and prevalence (average relative abundance % where present), and their date of introduction.

Rank	Scientific name	Common name	Date of introduction	Invasiveness index	Colonization (% of total sampled sites with species presence)	Prevalence (average % of fish community where species present)
1	Cyprinus carpio	Common carp	1500*	359.60	17.50	20.55
2	Oncorhynchus mykiss	Rainbow trout	1880	184.91	6.21	29.77
3	Pseudorasbora parva	Topmouth gudgeon	1980*	172.34	18.03	9.56
4	Carassius auratus	Goldfish	1900*	154.46	18.50	8.35
5	Silurus glanis	Wels catfish	1950	150.77	8.99	16.78
6	Rhodeus sericeus	Amur bitterling	1990	132.90	14.62	9.09
7	Gambusia holbrooki	Mosquitofish	1930	76.81	5.31	14.46
8	Lepomis gibbosus	Pumpkinseed	1880	67.51	10.15	6.65
9	Abramis brama	Common bream	1970	65.02	4.78	13.59
10	Ameiurus melas	Black bullhead	1880	56.28	3.89	14.48

*Marks uncertain year of introduction.