Algae-eating oysters... Jeollabuk-do's eco-friendly aquaculture technology evolves

Published Feb 6, 2026

Tridge summary

The advancement of eco-friendly aquaculture technology utilizing mudfish (saebang-i) is gaining momentum. Recently, Jeonbuk Province announced that it has jointly filed three patents for eco-friendly aquaculture technology using mudfish with the National Institute of Ecology. The patents filed this time include: △ a method for cultivating and producing green algae as feed organisms for mudfish, △ a method for raising mudfish using green algae as feed organisms, and △ a method for improving water quality and restoring aquatic plants in eutrophic water bodies using mudfish. The core of this technology lies in directly cultivating harmless green algae and using them as feed for mudfish. Since commercial compound feed is not used, feed costs can be significantly reduced, and due to the characteristic of mudfish eating green algae, it leads to a reduction in green algae and improvement in water quality.

Original content

The advancement of eco-friendly aquaculture technology using toha (juvenile black seabream) is gaining momentum. Jeollabuk-do Province recently announced that it has jointly filed three patents for eco-friendly aquaculture technology using toha with the National Institute of Ecology. The patents filed this time include methods for △cultivating and producing green algae as feed for toha △aquaculture of toha using green algae as feed △and improving water quality and restoring aquatic plants in eutrophic waters using toha. The core of the technology lies in directly cultivating harmless green algae and using it as feed for toha. This approach significantly reduces feed costs as it does not use commercial compound feed, and it also reduces green algae and improves water quality due to the characteristic of toha feeding on green algae, thereby differentiating it from existing aquaculture technologies. The four patents previously held by Jeollabuk-do focused on waterless aquaculture ...
Source: Fisheco

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