Invasive species are a real problem in Canada, and one species in particular, the freshwater jellyfish species of the genus Craspedacusta sowerbii—C. sowerbii, or the peach blossom jellyfish—are as widespread as they are also poorly understood.
The Peach Blossom Jellyfish is native to China and an invasive species in Canada. Credit: Florian Lüskow, Author provided, and one species in particular, the freshwater jellyfish species of the genus Craspedacusta sowerbii—C. sowerbii, or the peach blossom jellyfish—are as widespread as they are also poorly understood.
Unfortunately, however, we still have very limited information about the range of its presence in Canada, how it got here, how it spreads and what its essential impact on freshwater ecosystems across Canada may be. No mitigation and management strategy has yet been developed and many fundamental questions about the species ecology are unanswered.The Craspedacusta species is a subtropical but adaptable organism that favors moderate- to high-water temperatures.
Our research shows that this trend is not restricted to B.C., but is expected to happen in other provinces such as Alberta, Ontario and Québec too. Craspedacusta sowerbii irregularly occurs in the Great Lakes area on both sides of the Canada-United States border since the 1930s.The current state of provincial monitoring and reporting on this species is, unfortunately, lackluster., no province currently includes these in annual reports and statistics.
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