Chaetomorpha aerea

Chaetomorpha aerea is a species of filamentous green algae belonging to the Cladophoraceae family. Recognized as a valuable agricultural crop in aquaculture, it is widely utilized for its high capacity to uptake nutrients. The plant grows in dense, tangled mats of unbranched green filaments, with individual cells that can be quite distinct to the naked eye.

The origin of Chaetomorpha aerea is global, with natural populations found in temperate to tropical marine environments. In an agricultural setting, it is cultivated in controlled marine environments, such as algae scrubbers, refugiums, and large-scale industrial basins. Its ability to grow without a substrate makes it an ideal candidate for intensive farming systems where space is a constraint.

Regarding agrotechnical requirements, the culture thrives in environments with high light intensity and adequate circulation. Stability in water parameters, particularly salinity and alkalinity, is essential for maintaining growth rates. Unlike many other algae, it does not require significant soil input, but relies heavily on the availability of dissolved nitrates and phosphates within the water column.

The primary economic use for this species is biological water filtration. By effectively absorbing excess nutrients, it helps maintain water quality in fish farming and coral propagation facilities. Furthermore, the harvested biomass is frequently used as a supplemental feed for herbivorous marine organisms, contributing to a sustainable and circular aquaculture production model.

Managing the health of Chaetomorpha aerea requires strict attention to biological controls and water cleanliness. Common issues that farmers face during the growing cycle include:

• infection by pathogenic marine fungi;
• overgrowth by invasive diatom species;
• predation by specialized amphipods;
• degradation due to light deficiency or stagnant water flow.