3 What types of animals are affected by oil spills? Any aquatic organism or shorebird is affected by oil spills.How are animals affected by oilspills?HypothermiaPoisoning/internal damageIncreased predationDecreased reproductionHabitat destruction
4 HypothermiaThe fur of animals and the feathers of birds have air spaces between them that acts as an insulator to keep them warm.The oil causes the feathers or fur to stick together preventing it from acting as an insulator.This can cause their body temperature to drop too much, potentially causing death
5 Poisoning/Internal Damage IngestionUlcersDamage RBC’sDamage to kidneys, liver,immune systemOil vaporsEye and lung irritationDrowsiness- can cause drowningBiomagnificaton-the amount of oil increases in concentration as it moves through the food chain.
6 Increased PredationOil weighs down feathers and fur of organisms, making it difficult for them to escape predators.
7 Decreased Reproduction Oil can affect the eggsDisruption of reproductive hormones and behaviors
15 1989- Exxon Valdez Oil Spill Prince William Sound, AlaskaSpilled about 11 million gallons of oil after hitting a reefLed to 1990 Oil Pollution ActEstimated killing of250,000 seabirds2,800 sea otters300 harbor seals250 bald eaglesat least a dozen killer whalesbillions of salmon and herring eggs
21 What Happened?Explosion of Natural gas on the Deepwater Horizon oil rig caused it to collapseWhen the platform sank, it ruptured the riser (the pipe that connects the well at the ocean floor to the drilling platform on the surface), causing the oil to gush out.Attempts to shut down the flow failed when a safety device called a blowout preventer (BOP) could not be activated.
24 Long term effects of the BP oil spill Sick dolphinsHigher rate of turtle strandingsUnbalanced food web- the spill occurred during prime breeding seasonDecreased fish and wildlife populationsDecline in recreation