Spain claimed a protectorate over the coast of Guinea from Cape Bojador to Cap Blanc, too.

Southernmost point - the southern tip of Ras Nouadhibou/(Cap Blanc)

Upwelling occurs year-round at Cap Blanc (Ras Nouadhibou) and northward.

SACW, to the south of Cap Blanc, is richer in nutrients than NACW.

Primary production to the south of Cap Blanc is limited by the occurrence of upwelling events.

Barber and Smith (1981) estimated that on the shelf off Cap Blanc, regenerated nitrogen accounted for 72% of total nitrogen.

In 1884 Spain claimed a protectorate over the coast from Cape Bojador to Cap Blanc.

The Portuguese had established a trading fort at Arguin, southeast of Cap Blanc (present-day Ras Nouadhibou), in 1455.

He called it Cap Blanc, and Malle Barre (the Bad Bar) was the name given to a harbor on the east side of the Cape.

Champlain had already written, "Which we named Cap Blanc (Cape White), because they were sands and downs (sables et dunes) which appeared thus."