An esturary is considered to be anoxic when at least two of the following criteria have been observed:
- milky white or green discolouration of the water,
- H2S or 'rotten turnip' odour, and
- low (near zero) dissolved oxygen readings.
A map of anoxic events for 2013 is available. A map that highlights the intensity of anoxic events across PEI from 2009 to 2013 is also provided.
Historical information, from 2004 to 2013, is available.
Please note that information provided may not capture every anoxic estuary in PEI for a particular year. Some events may not have not been reported to, or documented by, the Department of Environment, Labour and Justice.
Meggison's Creek (Photo taken 10 July 2013)
|2013* Anoxic Events|
|Barbara Weit River
Bentick Cove (Clarks Brook)
Brackley Bay (Black River)
Covehead Bay (Bell's Creek and Auld's Creek)
Hunter River (New Glasgow)
Mill River (Upper Mill River, Meggison's Creek and Long Creek)
Southwest River (Upper Southwest, Long River, Paynter's Creek, Harding Creek, and Durant Creek)
Trout River (Coleman)
Trout / Stanley River (Granville Creek and Founds River)
Wheatley River (Crooked Creek and Oyster Bed Bridge)
* Current to December 12, 2013
If you have questions related to anoxic events in PEI, please contact the PEI Department of Environment, Labour and Justice at (902) 368-5044.