Anoxic Events

Anoxic Event - New Glasgow - July 9, 2018

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 have recorded anoxic events during 2018 is provided below.  A map of these sites is available and Historical information, from 2008 to 2017, is available.  A map that highlights the intensity of anoxic events across PEI from 2013 to 2017 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.

2018* Anoxic Events

  • Baltic River (both Hunter's Creek and Baltic Creek)
  • Barbara Weit River
  • Brackley Bay
  • Covehead Bay
  • Dunk River
  • Hunter River
  • Indian River
  • Midgell River
  • Mill River (upper Mill River, Hills River and Meggison's Creek)
  • Montrose River (upper Kildare River and upper Montrose River)
  • Southwest River (upper Southwest River, Tuplin Creek, Long River and Durant Creek)
  • Stanley River (Granville Creek)
  • Wilmot River (estuary and unnamed pond)
  • Winter River

* Last updated October 1, 2018

Who can I contact for more information?

Cindy Crane (Surface Water Biologist)
4th Floor, Jones Building
11 Kent Street
Charlottetown, PEI C1A 7N8
Telephone: (902) 368-5179
Fax: (902) 368-5830

Published date: 
August 21, 2018