Phytoplankton East of Valdés Peninsula, Argentina42.6S 63.4W
A small, greenish blue phytoplankton bloom can be observed off the coast of Argentina, east of the Valdes Peninsula. Blooms in this area tend to develop where the warm, salty waters of the subtropical Brazil Current flow south and meet the colder, fresher waters brought north from the Southern Ocean by the Falklands (Malvinas) Current.
Where these currents collide along the continental shelf-known to oceanographers as a shelf-break front-turbulent eddies form and pull nutrients up from the deep ocean. This area of convergence is known as the Brazil-Falklands Confluence.