Birds face loss of buoyancy and waterproofing, ingestion of contaminated prey, and disruption of thermal regulation. Light, volatile components evaporate relatively quickly, reducing the mass but sometimes increasing ground-level ozone and toxic exposure for coastal communities.
Oil Spill Response Technology and Prevention Strategies
Ecological Impacts and Toxicity The toxicity of petroleum compounds affects organisms at every trophic level, from microscopic plankton to top predators. Natural Seeps and Human Activities A significant portion of oil in the ocean originates from natural seeps, where petroleum escapes from underground reservoirs through the seafloor, contributing an estimated 200,000 to 600,000 tonnes annually.
Non-point sources are more diffuse, primarily involving urban and industrial runoff that carries hydrocarbons from roads and factories into waterways, as well as chronic discharges from drilling operations. Exposure can occur through ingestion, absorption, or inhalation, leading to acute mortality in sensitive species or chronic sub-lethal effects that impair reproduction and growth.
Oil Spill Response Technology and Prevention Strategies
Specific Impacts on Marine Life Marine mammals and sea turtles can suffer from hypothermia when oil compromises the insulating properties of their fur or feathers. Mechanical containment and recovery using booms and skimmers is often the first line of defense, but its effectiveness depends heavily on weather conditions and the thickness of the slick.
More About Oil in the ocean
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