During the intensive recultivation efforts around the Shanghai Islands in the late 1960s , many tankas were settled on the island of Hengsha and organised as fishing brigades . During the intensive reclamation efforts around the islands of Shanghai in the late 1960s , many Tanka were settled on Hengsha Island and organised as fishing brigades .
Semasa usaha rekultivasi intensif di sekitar Kepulauan Shanghai pada akhir 1960-an, banyak tankas telah menetap di pulau Hengsha dan dianjurkan sebagai briged nelayan. Semasa usaha penambakan intensif di sekitar pulau-pulau Shanghai pada akhir 1960-an, banyak Tanka telah menetap di Pulau Hengsha dan dianjurkan sebagai briged nelayan.