Environment

Marine Plastics

Switching over to Floats That Have a Low Risk of Becoming Plastics That Outflow into the Ocean

Goal of the Nissui Group
By the end of FY2024, the Nissui Group will cease the use of polystyrene foam floats in nylon covers for use in aquaculture and completely switch over to floats that have a lower risk of becoming plastic that outflows into the ocean.

As one of our measures to address the problem of marine plastics, the Nissui Group is working to prevent plastic fishing equipment from outflowing into the ocean.
The Nissui Group is engaged in the farming of salmon and trout outside Japan, and of yellowtail, tuna, coho salmon, mackerel, red sea bream, and others in Japan. Traditionally, mostly polystyrene foam floats wrapped in nylon covers have been used in marine aquaculture operations in Japan (Note 1), but compared to other types of floats, the nylon covers inferior in terms of strength, and there are concerns over the risk that, if they happen to tear, the polystyrene inside them could break apart and outflow into the ocean. Given that problem, in FY2019, we conducted a study on the number of nylon-covered polystyrene foam floats owned and their use by the Group as a whole (as of July 2019, the Group had 18,828 such floats). Furthermore, we made the decision to cease the use of such floats entirely throughout the Nissui Group by the end of FY2024 and replace them with floats that have a lower risk of outflowing into the ocean.(Note 2) The Group as a whole will continue to study the use of fishery gear with a lower risk of outflowing out into the ocean and to work to address the problem of marine plastic through our businesses.

Floats used in marine aquaculture

Floats used in marine aquaculture

Before switchover: Nylon-covered polystyrene foam floats

Before switchover: Nylon-covered polystyrene foam floats

【画像】矢印
Post-switchover example: PE-coated polystyrene foam floats
Post-switchover example: PE-coated polystyrene foam floats

Post-switchover example: PE-coated polystyrene foam floats

(Note 1): We were able to confirm that the marine aquaculture fisheries of Group companies outside Japan are not using nylon-covered polystyrene foam floats.
(Note 2): PE-coated polystyrene foam floats or hollow resin floats.

system, 日本水産株式会社 CSR部CSR課, 外部協力者, 日本水産株式会社 広報課, 日本水産株式会社 人事部人事課

Support of a Venture Addressing the Problem of Plastics Flowing into the Ocean (Pirika Inc.)

Marine litter including plastics is said to originate from the land, mainly from the cities but its discharge routes are not known. From fiscal 2018, Nissui has been a supporter of Pirika Inc., which is committed to the Albatross Project that aims to investigate the facts surrounding plastics flowing into the ocean and has commenced concrete approaches in dealing with the problems of the marine environment and the problem of plastics flowing into the ocean, which are directly connected to Nissui’s business.

Details of the Albatross Project which aims to investigate the facts surrounding the problem of plastics flowing into the ocean

●STEP1

Development of research methods : Develop an effective method of research on the flow of plastics into the ocean.

●STEP2

Clarification of the flow mechanism : Study the mechanism of plastics flowing into the ocean (flow routes and flow items) and narrow down the problem.

●STEP3

Study and implementation of measures : Study, prioritize and implement measures to combat the problem of plastics flowing into the ocean.

【Picture】Pirika Inc.

Pirika Inc.

system, 日本水産株式会社 CSR部CSR課, 外部協力者, 日本水産株式会社 広報課