Anoxic events are a common occurrence in Island estuaries during the summer months. The symptoms of an anoxic event include:
- milky white or green discolouration of the water,
- H2S or 'rotten turnip' odour, and
- low (near zero) dissolved oxygen readings.
A list of sites that recorded anoxic events during 2016 is provided below. A map of these sites is also available
Historical information, from 2006 to 2016, is available. A map that highlights the intensity of anoxic events across PEI from 2012 to 2016 is also provided.
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 Communities, Land and Environment.
2017* Anoxic Events
- Brackley Bay (Black River)
- Cardigan River
- Covehead Bay
- French River
- Hope River
- Hunter River
- Lake of Shining Waters**
- Mill River
- Oyster Creek (Cascumpec)
- Southwest River (including lower Sutherland Creek)
- Trout/Stanley River (including upper Trout River, upper Founds River and upper Granville Creek)
- Wheatley River
- Winter River
* Last updated October 12, 2017
** Freshwater Pond