sentences:  The river currently passes through Ngonye Falls National Park, Mosi-oa-Tunya National Park, and Lower Zambezi National Park (in Zambia), and Zambezi National Park, Victoria Falls National Park, Matusadona National Park, Mana Pools National Park, and the Middle Zambezi Biosphere Reserve (in Zimbabwe).As of 2017 the situation of overfishing in the upper Zambezi and its tributaries was considered dire, in part due to weak enforcement of the respective fisheries acts and regulations.The fish stocks of Lake Liambezi in the eastern Caprivi were found to be totally depleted, and surveys indicated a decline in the whole Zambezi-Kwando-Chobe river system.