Effects of the Deepwater Horizon oil spill on protected marine species

Last modified: 
December 14, 2019 - 7:12am
Type: Journal Article
Year of publication: 2017
Date published: 01/2017
Authors: BP Wallace, T Brosnan, D McLamb, T Rowles, E Ruder, B Schroeder, L Schwacke, B Stacy, L Sullivan, R Takeshita, D Wehner
Journal title: Endangered Species Research
Volume: 33
Pages: 1 - 7
ISSN: 1863-5407

The Deepwater Horizon (DWH) incident was the largest offshore oil spill in the history of the United States, contaminating surface waters, the water column, deep-sea corals and benthos, nearshore and coastal ecosystems, and natural resources across 5 states and an ocean area of more than 112000 km2 in the Gulf of Mexico (GoM). Protected marine species—sea turtles and marine mammals, in particular—were a main focus of the DWH Natural Resource Damage Assessment (NRDA). The DWH spill overlapped in time and space with sea turtle and marine mammal habitats and life stages throughout the northern GoM. Thus, the DWH NRDA Trustees (2016; www.gulfspillrestoration.noaa.gov/restoration-planning/gulf-plan/) performed several activities to assess adverse effects of oil exposure on sea turtles and marine mammals to quantify the full extent and nature of the impacts to these taxa across the region. A synopsis of the Trustees’ assessment activities and conclusions is presented in the DWH NRDA Programmatic Damage Assessment and Restoration Plan (DWH NRDA Trustees 2016). This Theme Section presents several of these specific sea turtle and marine mammal assessment activities and associated findings. This Overview provides a context for the Theme Section papers, introduces basic NRDA concepts and discusses generally why and how protected marine species were assessed in the DWH NRDA.

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