About 300km (186 miles) south of Dar es Salaam and near the ruins of Kilwa Kisiwani, the fishing town of Kilwa Masoko has a new port designed to accommodate fishing vessels far larger than the boats that have long worked this stretch of Tanzania’s coast. The fishing port had passed its completion inspection, China’s ambassador to Tanzania Chen Mingjian said last week, while hailing it Tanzania’s first large-scale modern fishing harbour. Designed to land 60,000 tonnes of fish a year, it aims to...