Algal blooms correlated with aquaculture production

That's the conclusion of 109 scientists reporting to UNESCO after spending seven years analysing almost 10,000 harmful algal blooms that have occurred over the past 33 years. They report:

The number of recorded harmful algal bloom events over time was strongly correlated with intensified aquaculture production in all regions with data suitable for the study.

Clearly there's a major gap in our understanding of the way the nutrient-rich filth caused by fish faeces and wasted food creates those poisonous algal blooms.

This huge research project was led by our own Prof. Gustaaf M. Hallegraeff of the University of Tasmania.