Patagonian Shelf Patagonian Shelf The Patagonian or Argentine Shelf is part of the South American continental shelf belonging to the Argentine Sea on the Atlantic seaboard, south of about 35°S. It adjoins the coasts of Uruguay, Argentina and the Falkland Islands. Various authorities quote different dimensions of the shelf, depending on how they define its limits. Quoted statistics cites its area as being from 1.2 to 2.7 million square kilometres and its maximum width as being between 760 and 850 kilometres. The shelf itself can be divided into a 100 km band where the seabed slopes at about then a wide plain
Patagonian crested duck crested duck is not endangered. Although its global population is unknown, there are thought to be around 10,000 breeding pairs in the Falkland Islands. Its sibling subspecies, the Andean crested duck, is extremely rare even in captive collections. One of the main predators of the Patagonian crested duck is the black-crowned night heron. Adult ducks have few other predators though the younger ducklings are subject to predation by brown skuas. Patagonian crested duck The Patagonian crested duck ("Lophonetta specularioides specularioides"), also known as the southern crested duck, or the grey duck in the Falkland Islands, is the nominate of two