Anthropogenic effects on the marine environment adjacent to Palmer Station, Antarctica

Anthropogenic impacts on marine ecosystems in Antarctica.

Antarctica is the most isolated continent on Earth, but it has not escaped the negative impacts of human activity. The unique marine ecosystems of Antarctica and their endemic faunas are affected on local and regional scales by overharvesting, pollution, and the introduction of alien species. Global climate change is also having deleterious impacts: rising sea temperatures and ocean acidificati...

The Palmer LTER: A Long-Term Ecological Research Program at Palmer Station, Antarctica

Effects of marine reserves on adjacent fisheries.

Marine reserves have been widely promoted as conservation and fishery management tools. There are robust demonstrations of conservation benefits, but fishery benefits remain controversial. We show that marine reserves in Florida (United States) and St. Lucia have enhanced adjacent fisheries. Within 5 years of creation, a network of five small reserves in St. Lucia increased adjacent catches of ...

Palmer LTER: The first profiles of marine snow aggregate abundance from Antarctica

Various, and at times contradictory, conclusions have been drawn regarding the mo es of vertical export of particu late material during and after blooms in the southern oceans. For example, Wefer and Fischer (1991) reported that sedi ment-trap samples were dominated by fecal pellets, indicat ing that zooplankton grazing dominated the packaging and removal of phytoplankton. In contrast, Von Bodu...

Sources of Anthropogenic Sound in the Marine Environment

Anthropogenic sound is created in the ocean both purposefully and unintentionally. The result is noise pollution that is high-intensity and acute, as well as lower-level and chronic. The locations of noise pollution are along well-traveled paths in the sea and particularly encompass coastal and continental shelf waters. Increased use of the sea for commercial shipping, geophysical exploration, ...