The groups who lodged the fisheries claims were the Ngāi Tahu and Muriwhenua Māori.
The Ngāi Tahu Māori are from the southern region of New Zealand and the Muriwhenua Māori are from the far north of New Zealand.
These groups had eel weirs and other fish traps on the river and they also had all their fishing rights. Their eel traps were destroyed in order to make way for river steamers. They also lost some of the rights to fishing as more Pakeha settlers began to arrive in New Zealand and because of this more laws and restrictions were being made.
They protested for their rights offshore as well as in lakes, rivers, foreshores, and harbours and both groups lodged fisheries claims with the Waitangi Tribunal in the 1980s.
The claim was settled in December 1992 with the Treaty of Waitangi Fisheries Claim Settlement Act.
The government agreed to give the Māori 20% of the quota (fixed share) for each new species that went into the Quota Management System. (used to manage fish stocks in New Zealand).