Deepwater redfish and spawns free-living larvae. "S. mentella" is very similar in appearance to the Acadian redfish ("Sebastes fasciatus"). In 2010, Greenpeace International has added the deepwater redfish to its seafood red list. "The Greenpeace International seafood red list is a list of fish that are commonly sold around the world, and which have a very high risk of being sourced from unsustainable fisheries." Deepwater redfish The deepwater redfish ("Sebastes mentella"), also known as the beaked redfish, ocean perch, Atlantic redfish, Norway haddock, red perch, golden redfish, or hemdurgan, may reach a size of , but is usually less than . It
Port of Ngqura paleo-channel that runs through the site and Jahleel Island that is situated 1 km off-shore. The paleo channel provides the opportunity to provide a deepwater port without the need to dredge large quantities of consolidated material, which results in huge savings in capital dredging. The environmental sensitivity (birdlife / penguin population) of Jahleel Island restricted any development within 500 m of the island. The position of the main breakwater had to be such that the required exclusion zone around Jahleel Island was adhered to. One of the coastal processes considered relevant during the design of the port was sediment transport.