What’s the Difference? Harmful Algal Blooms and Controlled Algae Growth

Introduction

Harmful Algal Blooms (HABs) occur when there are extraordinary amounts of algae growth in a particular waterway. HABs can release toxins in the water that are harmful to humans and make consumption or use of a water body difficult. Pets, such as dogs, have been killed by blooms in various regions. Additionally, natural aquatic wildlife such as fish and plants, are often killed off during the occurrence of a HAB which can create ecosystem damage in the long term. A lot of people often ask the question, “why should I grow algae if it’s causing all this damage in the wild?” Well, there’s a big difference between the algae we grow in a controlled environment and the runaway algal blooms that can occur in the wild. This article will hopefully clear up the difference between these two occurrences.

How do Algal Blooms Occur?

HABs tend to occur when conditions for algae growth are overwhelmingly positive. Variables that influence HABs are temperature, nutrient concentration, and wind/current flow. Temperature influences the algae by providing a comfortable environment that enhances growth. Warmer water temperatures allow algae cultures to move more efficiently and absorb more sunlight instead of sinking to the bottom of a water body. Nutrients are absorbed by algae in…