Microalgae Industry Statistics

Key Takeaways

• 1The global aquaculture sector produced 82.1 million tonnes in 2018, and microalgae-based feeds (e.g., live feeds for hatcheries) are part of this downstream supply chain
• 2FAO reported that global aquaculture production reached 51.5 million tonnes in 2010 and 82.1 million tonnes by 2018, indicating growing demand for microalgae inputs to hatcheries
• 3FAO’s State of World Fisheries and Aquaculture notes continued growth in aquaculture output since 2010, creating structural demand for phytoplankton and microalgae-based live feed
• 4Microalgae can achieve significant heavy-metal removal from contaminated water; review studies often report over 50% reductions across multiple metals depending on pH, dose, and contact time
• 5Microalgae-based CO2 capture is frequently evaluated using greenhouse-gas accounting frameworks; studies compute potential carbon capture by combining flue-gas CO2 concentrations with algal productivity
• 6Microalgae biomass typically contains significant proteins; literature commonly reports protein fractions around 40–60% dry weight for Spirulina (species- and growth-dependent)
• 7Life-cycle assessments of microalgae photobioreactors show that electricity generation mix can swing total greenhouse-gas results by multiples (often >2x) across grid scenarios
• 8CO2 utilization rates in algal cultivation can be high in well-mixed systems; studies report CO2 transfer efficiencies from ~10% to >50% depending on sparging configuration and gas-liquid mass transfer
• 9Astaxanthin content in Haematococcus pluvialis biomass can reach very high levels under stress induction; studies report >1% dry weight astaxanthin in some production conditions
• 10EU microbiological limits: Enterobacteriaceae must be absent in 25 g and E. coli must be absent in 1 g for dried algae intended for food use (Regulation-style guidance summarized in EU-aligned specifications)
• 11US dietary supplement labeling: FDA classifies microalgae-derived supplements under dietary supplement rules (21 CFR 101.36) requiring identity/labeling content including ingredient amounts
• 12ISO 22000:2018 certification base reached 32,000 organizations globally in 2023 (standard for food safety management applicable to food-grade microalgae)
• 13The European Food Safety Authority (EFSA) evaluates safety of microalgae-derived novel foods and supplements; EFSA has issued multiple opinions on microalgae products including Arthrospira (Spirulina)
• 14European Commission maximum levels for contaminants in food-grade algae and algal products are regulated under EU food safety frameworks, influencing microalgae producer compliance costs and specs
• 15EU Regulation (EC) No 1333/2008 governs food additives, including some algal-derived additives used in food applications, shaping regulatory compliance for downstream products

Aquaculture is rapidly expanding and microalgae are increasingly vital for feeds, nutrients, and high value products.