31 December 2021

Ontario prohibits Marmorkrebs

Welcome to the Environmental Registry of Ontario.
The Gananoque Reporter reminds me of a story I have been watching for almost two years: Marmorkrebs have been added to a list of prohibited species in Ontario under the Invasive Species Act.


Marbled crayfish (Procambarus virginalis) and Louisiana red swamp crayfish (Procambarus clarkii) prohibited in Ontario, as of 1 January 2022. Happy new year. 


What does this mean in practical terms?


Prohibited species cannot be brought into Ontario, deposited, released, possessed or transported in Ontario and cannot be propagated, bought, sold or traded in Ontario.

The regulation includes species-specific exceptions to certain prohibitions, including: Marbled Crayfish, Red Swamp Crayfish: Exceptions allow for incidental capture of these species while fishing in Ontario.


This is a weird exemption, because as there are no marbled crayfish to be caught in Ontario, as far as I know.


This is the most significant regulation concerning marbled crayfish in North America to date, because Ontario is the largest and most populous jurisdiction that has yet tried to regulate marbled crayfish.

We’ll see if it works.


That I am just learning about this today – one day before it takes effect – emphasizes yet again how hard it is to keep track of this sort of legislation. I have alerts set for marbled crayfish and try to track this material as closely as possible. I am making an effort. But this passed me by for eight whole months.


Related posts 


Canadian province of Ontario asks for input on Marmorkrebs (February 2020)


Ontario seeks public comment on regulating marbled crayfish (April 2021)


External links


New Ontario boating rules Jan. 1 to stem spread of aquatic invasive species


Regulating 13 invasive species and watercraft as a carrier of invasive species under Ontario’s Invasive Species Act, 2015 (decision)


Regulating 13 invasive species and watercraft as a carrier of invasive species under the Ontario Invasive Species Act, 2015 (Analysis, April 2021)

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