The Alberta government has reopened most of the fisheries in southern Alberta.

The province took the unusual step of closing numerous fishing spots earlier this month as high temperatures endangered fish.

"Given the cooler weather and rain throughout southern Alberta, water temperatures have decreased and the threat to fish mortality has diminished such that angling may resume in most areas," Alberta Environment and Parks said in a release.

Fishing is allowed on all rivers and streams except for St. Mary's river downstream of the St. Mary's reservoir and its tributaries