we must take responsibility for sustaining marine resources. >> reporter: the japan fisheries association, the largest organization of its kind, introduced this new eco-labeling system three years ago. their screening process is rigorous. it's based on guidelines set by the united nations food and agricultural org. they're proud of their procedure for being faster and cheaper than other eco-labeling systems. more efficient cooperatives are applying for this labeling system. in central japan, the local fishing industry limited the quota of these extremely small to maintain levels of 2 billion. and in northern japan, fresh water clam fishing is now restricted based on results of scientific research. >> translator: japan's local fisheries have long been concerned with developing sustainability. consumers haven't been aware of our efforts until recently. by using these ecolabels, we hope they will continue to support our activities. >>> in the foothills on the rocky mountains in the u.s., there's conflict as the number of gray wolves increases, they attack more livestock. so the farmers want