Biomass production in algae farming is typically measured by assessing the concentration of algae cells in the culture and tracking how much biomass accumulates over time. One common method is measuring optical density, where light is passed through a sample and the amount absorbed indicates cell concentration. For a more direct measurement, samples can be filtered, dried, and weighed to determine dry weight, which represents the actual biomass produced.
Regular sampling at different points in the growth cycle helps estimate productivity rates and allows farmers to adjust conditions to maximize yields. Biomass measurements can also be used to calculate productivity per unit area or volume, giving a clearer picture of overall farm efficiency. Accurate biomass data helps ensure optimal harvesting times and supports decisions on nutrient supply, light exposure, and other environmental factors.