The CARBODIET project, led by MISPECES in Spain, examines the application of biocharBiochar is a carbon-rich material created from biomass decomposition in low-oxygen conditions. It has important applications in environmental remediation, soil improvement, agriculture, carbon sequestration, energy storage, and sustainable materials, promoting efficiency and reducing waste in various contexts while addressing climate change challenges. More as a functional feed additive in aquaculture, specifically for turbot and sole production. The initiative evaluates biochar’s role in improving fish health, feed efficiency, and environmental performance within marine aquaculture systems. The project reflects broader industry efforts to explore sustainable feed innovations that address environmental pressures while supporting production efficiency in European aquaculture.

A central challenge addressed by the CARBODIET project is the need for sustainable feed additives that enhance aquaculture productivity without increasing environmental impacts. Aquaculture operations face pressures related to water quality management, feed utilization efficiency, and animal health outcomes. Traditional feed inputs may contribute to waste generation and water contamination, which can affect production performance and regulatory compliance. The project therefore targets the development of feed strategies that support both operational efficiency and environmental sustainability within intensive marine farming systems.

The proposed solution involves incorporating biochar into fish feed formulations for turbot and sole. The project evaluates how biochar functions within digestive processes and its potential effects on nutrient absorption, gut health, and waste reduction. Researchers assess the additive’s capacity to improve feed conversion and reduce the environmental footprint of aquaculture operations. Through controlled trials, the CARBODIET initiative examines the performance of biochar-enhanced feed and its role as a functional dietary component that supports sustainable aquaculture management practices.

Project outcomes indicate that biochar shows potential as a functional feed additive in marine aquaculture systems. The findings suggest improvements in feed efficiency and fish health indicators, alongside environmental benefits associated with reduced waste outputs. The project also demonstrates the feasibility of integrating biochar into commercial aquaculture feed strategies. These results contribute to ongoing research on sustainable aquaculture inputs and highlight biochar’s emerging role in supporting resource-efficient seafood production. The CARBODIET initiative provides evidence that biochar-based solutions may address key operational and environmental challenges in marine aquaculture while aligning with broader sustainability objectives in the sector.