Editing Algal bloom (section)

== Management ==
There are three major categories for management of algal blooms consisting of mitigation, prevention, and control.<ref>{{Cite journal |last=Anderson |first=Donald M. |date=July 2009 |title=Approaches to monitoring, control and management of harmful algal blooms (HABs) |journal=Ocean & Coastal Management |language=en |volume=52 |issue=7 |pages=342–347 |doi=10.1016/j.ocecoaman.2009.04.006 |pmc=2818325 |pmid=20161650|bibcode=2009OCM....52..342A }}</ref> 
Within mitigation, routine monitoring programs are implemented for toxins in shellfish for early warnings <ref>Shellfish Killers: An Optimized Early Warning Program to Mitigate HAB Impacts on Shellfish in the Pacific Northwest - NCCOS - National Centers for Coastal Ocean Science. (2021). NCCOS - National Centers for Coastal Ocean Science. https://coastalscience.noaa.gov/project/shellfish-killers-an-optimized-early-warning-program-for-the-mitigation-of-hab-impacts-on-shellfish-in-the-pacific-northwest/</ref> and an overall surveillance of the area to monitor and quantify harmful algal blooms.<ref>Harmful Algal Bloom Monitoring System. (n.d.). NCCOS Coastal Science Website. https://coastalscience.noaa.gov/science-areas/habs/hab-monitoring-system/</ref> The HAB levels of the shellfish will be determined and can manage restrictions to keep contaminated shellfish off the food market. Moving fish pens away from algal blooms is also another form of mitigation. 
Within prevention, we can reduce surface runoff carrying excess nutrients by increasing the amount of permeable surfaces and vegetation. Permeable surfaces help absorb the runoff before it can make its way into the waterway. We can put into place permeable streets and parking lots which help allow for the pollution from vehicles and other runoff nutrients to be soaked up and/or slowed. Vegetation filters, absorbs, and slows the runoff which also helps to reduce the amount of excess nutrients making their way into the waterway. Examples of planted vegetation to help reduce runoff include rain gardens, replacing grass with native plants, planting trees in yards and along waterways, and even rooftop gardens. Farmers can reduce their impact on our waterways by planting cover crops, planting forested buffers, reducing their fertilizer use, and putting up fences to keep livestock out of streams.<ref>Chesapeake Bay Foundation. (2010). Polluted Runoff. Chesapeake Bay Foundation. https://www.cbf.org/issues/polluted-runoff/index.html</ref> Within control, there are mechanical, biological, chemical, genetic and environmental controls. Mechanical control involves dispersing clay into the water to aggregate with the HAB leading to less of these HAB to go through the process of sedimentation. Biological control varies largely and can be used through pheromones or releasing sterile males to reduce reproduction. Chemical control uses toxic chemical release. However, it may cause problems of mortality of other non targeted organisms. Genetic control involves genetically engineering species in their environmental tolerances and reproduction processes. However, there are problems of harming indigenous organisms. For environmental control, it can use water circulation and aeration.