The DMA's coastline is heavily modified by urban development which has destroyed much of the primary dune habitat. It still, however, hosts numerous tropical and sub-tropical animals and plants, many of which occur only in this area. Most fish and invertebrate species targeted by recreational and commercial fishers are either fully or over-exploited. In particular, several species of reef fishes e.g. seventy four and red steenbras are now endangered. Water quality along the DMA's coast is generally good, except for areas around the Umlass and Reunion canals.
Plastic pollution remains a problem along the entire coast.
Heavy harvesting of the DMA's marine resources over many years has reduced the diversity and quantity of economically valuable species available for harvest. This, in turn, has reduced the value of the commercial and recreational fishing opportunities. Some species are, however, providing a sustainable harvest, including those targeted by shore anglers and invertebrate collectors. Urban development has, in some cases, impacted on the sustainability of Durban's beaches. In order to ensure the sustainability of the beaches expensive sand replenishment exercises have been introduced.