Popularity and propagule pressure: Determinants of introduction and establishment of aquarium fish
Author ORCID Identifier
Document Type
Article
Publication Date
2006
Publication Title
Biological Invasions
Volume
8
Issue
2
First Page
377
Last Page
382
Abstract
Propagule pressure is frequently cited as an important determinant of invasion success for terrestrial taxa, but its importance for aquatic species is unclear. Using data on aquarium fishes in stores and historical records of fish introduced and established in Canadian and United States waters, we show clear relationships exist between frequency of occurrence in shops and likelihood of introduction and of establishment. Introduced and established taxa are also typically larger than those available from stores, consistent with the propagule pressure hypothesis in that larger fish may be released more frequently due to outgrowing their aquaria. Attempts to reduce the numbers of introductions may be the most practical mechanism to reduce the number of new successful invasions. © Springer 2006.
DOI
10.1007/s10530-004-2310-2
Recommended Citation
Duggan, I. C.; Rixon, C. A.M.; and MacIsaac, Hugh J., "Popularity and propagule pressure: Determinants of introduction and establishment of aquarium fish" (2006). Biological Invasions, 8, 2, 377-382.
https://scholar.uwindsor.ca/biologypub/542