Advocates are calling for a ban on bottom trawling in the Hauraki Gulf after finding snapper with poor condition and flaky fillets. Bianca Ranson of Forest and Bird claims overfishing and other issues are contributing to the problem. Fisheries New Zealand agrees that the cause is complex and is considering various factors. The Hauraki Gulf is facing a crisis due to flooding, forestry, agriculture, development, pollution, and overfishing, and urgent action is needed, say advocates.