Published: Friday, 5 May 2017
Modified: Friday, 27 January 2023
Long distance fish transport with fine bubbles, less fish stress and more sustainable.
Jemima Owen-Jones from gasworld.com reports
In 2012, Japan-based company, Marine Biotechnology, began developing a CO2 anesthesia method for fish transport. It wanted to temporarily sleep the fish for long-distance transportation so it could improve fish quality by having less stress and being able to transport more fish in the same amount of water. The concept should enable fish transport both inside and outside of Japan. The company developed a ‘live fish container’ concept. The container releases ultrafine bubbles of oxygen and CO2 into artificial seawater, this water environment makes the fish sleep. A 10-liter cylinder of oxygen and one 5 kg cylinder of liquid CO2 mounted on the containers is good for 40 hours of transport.
The containers have already completed several journeys i.e. an 800 km journey from Nagasaki to a restaurant in Tokyo, which took around 17 hours. President Nakashima his future goals include shipping live squid. Squids are very delicate creatures and are sensitive to changes in their environment. It is extremely difficult to transport them live. We want to use our containers so that people can eat the most delicious seafood no matter where they are in the world.
Photo by mathieu_matiu / CC BY