Intrathermocline eddies at the Juan Fernandez Archipelago, southeastern Pacific Ocean

Plant Conservation in the Juan Fernandez Archipelago, Chile

Oceanic archipelagos often hold very specialized floras with high degrees of endemism. These floras are frequently highly vulnerable to disturbance by natural causes and human intervention. The Juan Fernandez Islands (Chile) in the Pacific Ocean are a small archipelago of only three islands. Since discovery in 1574 by Juan Fernandez, human activities have altered floristic composition and survi...

Dynamic Compensation in the Central Pacific Ocean 4 Juan

ABsTRAcr Thc intermediate-wavelength geoid (A #)oo km) and sea-fbor topography fields in the central Pacific Ocean have been studied in terms of static and dynamic compensation models. Topographic fcatures on the sea-floor with As lo00 km haw been found to be wmpcnsatcd both regionally, by thc elastic strength of the lithosphere, and locally, by displacing mantle material to reach isostatic adj...

Biology and Conservation of the Juan Fernández Archipelago Seabird Community

Mesoscale eddies drive increased silica export in the subtropical Pacific Ocean.

Mesoscale eddies may play a critical role in ocean biogeochemistry by increasing nutrient supply, primary production, and efficiency of the biological pump, that is, the ratio of carbon export to primary production in otherwise nutrient-deficient waters. We examined a diatom bloom within a cold-core cyclonic eddy off Hawaii. Eddy primary production, community biomass, and size composition were ...

Biostratigraphic evidence for dramatic Holocene uplift of Robinson Crusoe Island, Juan Fernández Ridge, SE Pacific Ocean

Hotspot oceanic islands typically experience subsidence due to several processes related to migration of the oceanic plate away from the mantle plume and surface flexural loading. However, many other processes can interrupt subsidence, some of which may be associated with catastrophic events. A study of the biostratigraphy and sedimentology of Holocene deposits on Robinson Crusoe Island (RCI) o...