A community meeting to discuss the algal bloom affecting the south coast will be held on Thursday 24 April at the Middleton Pioneer Hall.

Hosted by activist groups The Wild South and Rising Tide, the Toxic Surf forum aims to provide information and canvas solutions.

Organisers say the algal bloom has killed thousands of beautiful sea creatures, made beachgoers sick and left the community wondering what to do.

RecFish SA reports that PIRSA has closed the commercial harvesting of pipis between the Murray Mouth and 10km South of the mouth to ensure dead or dying Pipis are not sent for human consumption.

The forum will offer an evening of food, film and guest speakers from 6pm to 8.30pm.

Featured speakers will include estuarine ecologist Faith Coleman, local Ramindjeri cultural leader Cedric Varcoe and Aunty Angelena Harradine Buckskin.

Local surfer and photographer Anthony Rowland, who first raised the alarm on the algal bloom in March, will also attend.

Parsons and Waitpinga beaches at Victor Harbor were closed for several weeks and the horse tram service to Granite Island was suspended, due to effects of the microalgae Karenia Mikimotoi.

This followed widespread reports of surfers and beachgoers suffering symptoms including coughing and breathing difficulties, itchy eyes and blurred vision and dead fish and marine creatures washing up on beaches across the south coast.

SA Health has advised people to avoid swimming in affected areas and avoid discoloured water.

Entry to the forum is free but event organisers are asking people to register to attend.

Find out more about The Wild South and Rising Tide on Facebook.