Spanish researchers use acoustic detection to track fish behavior during feeding

The Andalusia Aquaculture Technological Center (CTAQUA) has collaborated with the company LABLINEAL 4MEDIKS / CEALVET, which works to identify changes in the behavior of fish (Dicentrarchus labrax) during feeding through acoustic detection.

The company, specialized in the development of botanical-based assets, has developed VocalData, an artificial intelligence (AI) tool that extracts bird vocalizations to determine the animals' welfare levels and productive indices.

"With the proof of concept, we aimed to validate the functionality and measurements of the equipment, the material's durability, and the data presentation for analysis and storage," explained Frederic Fonlut, project technician at CTAQUA.

This collaboration is part of the 'Andalucía Agrotech EDIH' project, a public-private partnership led by the Ministry of Agriculture, Fisheries, Water, and Rural Development of the Government of Andalusia, which seeks to promote digital transformation in the agri-food sector through the adoption of advanced technologies, the promotion of innovation and collaboration, and connection with the European digital ecosystem.

Conclusions

During the feeding period, VocalData detected low-frequency patterns within the audible range generated by the fish or by the sound of the feed as it descended through the tank.

LABLINEAL also highlights that placing the sensor at the mid-height of the fish tank is essential for determining movements during feeding. These findings will help improve real-time detection of the fish feeding period.

"The sensor used has met the objectives set and allowed the company to test the device under real cultivation conditions in the RAS system, confirming its proper functioning, sound capture, digitalization, as well as data reception, presentation, and storage," concluded Fonlut.