Best Agar
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Red alga found on rocky coasts of Portugal and Morocco, the primary commercial source of high-quality agar in Europe, supporting a significant wild-harvesting industry.
*Gelidium amansii* is a red seaweed widely harvested in East Asia, recognized globally as a premium source of high-grade bacteriological agar used in scientific research.
*Gracilaria gracilis* is a red macroalga primarily cultivated in regions like Namibia for agar extraction, an essential gelling agent used in food and microbiology labs.
Red alga (family Gelidiaceae) of the northeastern Atlantic and Mediterranean, a traditional commercial source of agar harvested in Portugal and Morocco.
Red alga native to Chile and New Zealand, one of Chile's most commercially important aquaculture seaweeds, farmed since the 1980s primarily as a source of agar.
Red alga (family Gelidiaceae) of temperate and tropical Atlantic and Pacific coasts, a minor commercial agar source and close relative of Gelidium species.
Red alga (family Gracilariaceae) of the Mediterranean and eastern Atlantic, historically harvested as a source of agar; formerly classified within the genus Gracilaria.
A wiry red alga of the North Atlantic historically harvested for agar production in Russia and Scandinavia, where commercial extraction continued through much of the 20th century.
A red alga once forming massive underwater accumulations in the northwestern Black Sea called Zernov's Phyllophora field, historically regarded as the world's largest phytobenthic deposit.
Red alga native to East Asia, now a globally invasive species introduced to Atlantic and Pacific coasts via oyster aquaculture; a commercially important source of agar.
