Monitoring and regulating marine oligochaete by measuring electrical signals

August 10, 2022

The application in environment diagnosis and purification technology for sustainable aquaculture is expected

A cooperative study group of the RIKEN CSRS and Japan Fisheries Research and Education Agency succeeded in the real-time measurement of electrical signals produced by activities of marine oligochaete living in aquaculture farms.

Aquaculture in coastal environments has an increasingly important role in the world’s food supply. However, overfeeding could cause environmental troubles and leads to fish diseases and red tides.

The study group sampled sediments from the bottom of a fish farm and traced electric signals generated by marine oligochaete living there. They found that the electric signals can be used as an indicator to estimate the proper amount of feeding. They also found that the electric signals can be used to artificially regulate the movement and metabolism of marine oligochaete.

The findings of this study will contribute to developing means for the environmental diagnosis and purification in aquaculture farms based on a real-time monitoring of electric signals.

Original article
Frontiers in Microbiology doi:10.3389/fmicb.2022.907703
N. Shono, M. Ito, A. Umezawa, K. Sakata, A. Li, J. Kikuchi, K. Ito, R. Nakamura,
"Tracing and Regulating Redox Homeostasis of Model Benthic Ecosystems for Sustainable Aquaculture in Coastal Environments".
Ryuhei Nakamura; Team Leader
Biofunctional Catalyst Research Team
Jun Kikuchi; Team Leader
Environmental Metabolic Analysis Research Team