Matsukata Hiroki no Super Trawling happened in 1995.

Most places where trawling is still an issue the only way to prevent trawling is taking extensive research of species change in the oceans due to trawling and presenting the reasearch to the local government. This will take a long time however if legislation is put in place to stop trawling there can be great benefits to the environement.

Schemes like this are ongoing in countries like Cambodia where the compant is working with the government to prevent trawling and protect seahorse and nudibranch.

when constitutes trawling within the meaning of rule 26

Matsukata Hiroki no Super Trawling was created on 1995-08-25.

Primitive fishermen use trawling. It is a pretty obvious advance upon just setting a net.