Article: Thousands introduced annually: the aquarium pathway for nonâindigenous plants to the St Lawrence Seaway
Frontiers in ecology and the environment. 2007 Dec., v. 5, no. 10
2007
Abstract: ... system and found that thousands of nonâindigenous plant propagules are introduced to the St Lawrence ...
| Abstract | Nonâindigenous species are both economically and ecologically costly. Invasions are occurring at an accelerating rate worldwide and therefore present a critical challenge to natural resource managers. The aquarium trade is commonly recognized as a pathway for nonâindigenous plants, but few regulations exist to curb such introductions. In addition, very few studies have attempted to quantify the number of propagules introduced through the aquarium trade each year, probably because it is difficult to directly measure the number of propagules introduced. Here, we use a novel approach to quantify propagule numbers by analyzing each step in the path to introduction and synthesizing this information to calculate propagule pressure for each species. We used the aquarium plant trade in Montreal, Quebec, Canada, as our study system and found that thousands of nonâindigenous plant propagules are introduced to the St Lawrence Seaway each year, through the Montreal aquarium trade alone. Two known invaders are among those species with the highest measured propagule pressure. |
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| Keywords | aquarium plants ; introduced plants ; managers ; trade ; Quebec |
| Language | English |
| Dates of publication | 2007-12 |
| Size | p. 528-532. |
| Publishing place | Ecological Society of America |
| Document type | Article |
| ZDB-ID | 2110853-5 |
| ISSN | 1540-9309 ; 1540-9295 |
| ISSN (online) | 1540-9309 |
| ISSN | 1540-9295 |
| DOI | 10.1890/060137 |
| Database | NAL-Catalogue (AGRICOLA) |
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