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An inside look at the science of cleaning up and fixing the mess of marine pollution


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When Planning for Disasters, an Effort to Combine Environmental and Human Health Data

Two men clean up oil on a beach.

Workers clean oil from a beach in Louisiana following the 2010 Deepwater Horizon spill. (NOAA)

Immediately following the Deepwater Horizon oil spill of 2010, there was a high demand for government agencies, including NOAA, to provide public data related to the spill very quickly. Because of the far-reaching effects of the spill on living things, those demands included data on human health as well as the environment and cleanup.

In mid-September of 2014, a group of scientists including social and public health experts, biologists, oceanographers, chemists, atmospheric scientists, and data management experts convened in Shepherdstown, West Virginia, to discuss ways they could better integrate their respective environmental and health data during disasters. The goal was to figure out how to bring together these usually quite separate types of data and then share them with the public during future disasters, such as oils spills, hurricanes, tornadoes, and floods.

The Deepwater Horizon spill experience has shown government agencies that there are monitoring opportunities which, if taken, could provide valuable data on both the environment and, for example, the workers that are involved in the cleanup. Looking back, it was discovered that at the same time that “vessels of opportunity” were out in the Gulf of Mexico assisting with the spill response and collecting data on environmental conditions, the workers on those vessels could have been identified and monitored for future health conditions, providing pertinent data to health agencies.

A lot of environmental response data already are contained in NOAA’s online mapping tool, the Environmental Response Management Application (ERMA®), such as the oil’s location on the water surface and on beaches throughout the Deepwater Horizon spill, chemicals found in sediment and animal tissue samples, and areas of dispersant use. ERMA also pulls together in a centralized format and displays Environmental Sensitivity Index data, which include vulnerable shoreline, biological, and human use resources present in coastal areas; ship locations; weather; and ocean currents. Study plans developed to assess the environmental impacts of the spill for the Natural Resource Damage Assessment and the resulting data collected can be found at www.gulfspillrestoration.noaa.gov/oil-spill/gulf-spill-data.

Screen shot of ERMA mapping program showing Gulf of Mexico with Deepwater Horizon oil spill data.

ERMA Deepwater Gulf Response contains a wide array of publicly available data related to the 2010 Deepwater Horizon oil spill in the Gulf of Mexico. Here, you can see cumulative levels of oiling on the ocean surface throughout the spill, shorelines affected, and the location of the damaged wellhead. (NOAA)

Health agencies, on the other hand, are interested in data on people’s exposure to oil and dispersants, effects of in situ burning on air quality, and heat stress in regard to worker health. They need information on both long-term and short-term health risks so that they can determine if impacted areas are safe for the communities. Ideally, data such as what are found in ERMA could be imported into health agencies’ data management systems which contain human impact data, creating a more complete picture.

Putting out the combined information to the public quickly and transparently will promote a more accurate representation of a disaster’s aftermath and associated risks to both people and environment.

Funded by NOAA’s Gulf of Mexico Disaster Response Center and facilitated by the University of New Hampshire’s Coastal Response Research Center, this workshop sparked ideas for better and more efficient collaboration between agencies dealing with environmental and human health data. By setting up integrated systems now, we will be better prepared to respond to and learn from man-made and natural disasters in the future. As a result of this workshop, participants formed an ongoing working group to move some of the best practices forward. More information can be found at crrc.unh.edu/workshops/EDDM.

Dr. Amy Merten, of OR&R’s Assessment and Restoration Division co-authored this blog.


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Marine Life in Gulf of Mexico Faces Multiple Challenges

Editor’s Note: This is a revised posting by Maggie Broadwater of NOAA’s National Centers for Coastal Ocean Science that has corrected some factual misstatements in the original post.

photo of a bottlenose dolphin calf.

A bottlenose dolphin calf in the Gulf of Mexico. (NOAA)

Animals living in coastal waters can face a number of environmental stressors—both from nature and from humans—which, in turn, may have compounding effects. This may be the case for marine life in the Gulf of Mexico which experiences both oil spills and the presence of toxic algae blooms.

On the Lookout

Marine sentinels, like bottlenose dolphins in the Gulf of Mexico, share this coastal environment with humans and consume food from many of the same sources. As marine sentinels, these marine mammals are similar to the proverbial “canary in the coal mine.” Studying bottlenose dolphins may alert us humans to the presence of chemical pollutants, pathogens, and toxins from algae (simple ocean plants) that may be in Gulf waters.

Texas Gulf waters, for an example, are a haven for a diverse array of harmful algae. Additional environmental threats for this area include oil spills, stormwater and agricultural runoff, and industrial pollution.

Recently, we have been learning about the potential effects of oil on bottlenose dolphin populations in the Gulf of Mexico as a result of the Deepwater Horizon oil spill in April 2010. Dolphins with exposure to oil may develop lung disease and adrenal impacts, and be less able to deal with stress.

Certain types of algae produce toxins that can harm fish, mammals, and birds and cause illness in humans. During harmful algal blooms, which occur when colonies of algae “bloom” or grow out of control, the high toxin levels observed often result in illness or death for some marine life, and low-level exposure may compromise their health and increase their susceptibility to other stressors.

However, we know very little about the combined effects from both oil and harmful algal blooms.

A barge loaded with marine fuel oil sits partially submerged in the Houston Ship Channel, March 22, 2014. The bulk carrier Summer Wind, reported a collision between the Summer Wind and a barge, containing 924,000 gallons of fuel oil, towed by the motor vessel Miss Susan. (U.S. Coast Guard)

A barge loaded with marine fuel oil sits partially submerged in the Houston Ship Channel, March 22, 2014. The bulk carrier Summer Wind, reported a collision between the Summer Wind and a barge, containing 924,000 gallons of fuel oil, towed by the motor vessel Miss Susan. (U.S. Coast Guard)

Familiar Waters

Prior to the Galveston Bay oil spill, Texas officials closed Galveston Bay to the harvesting of oysters, clams, and mussels on March 14, 2014 after detecting elevated levels of Dinophysis. These harmful algae can produce toxins that result in diarrhetic shellfish poisoning when people eat contaminated shellfish. Four days later, on March 18, trained volunteers from NOAA’s Phytoplankton Monitoring Network detected Pseudo-nitzschia in Galveston Bay. NOAA Harmful Algal Bloom scientist Steve Morton, Ph.D., confirmed the presence of Pseudo-nitzchia multiseries, a type of algae known as a diatom that produces a potent neurotoxin affecting humans, birds, and marine mammals. NOAA’s Harmful Algal Bloom Analytical Response Team confirmed the toxin was present and notified Texas officials.

When Oil and Algae Mix

Studying marine mammal strandings and deaths helps NOAA scientists and coastal managers understand the effects of harmful algal blooms across seasons, years, and geographical regions. We know that acute exposure to algal toxins through diet can cause death in marine mammals, and that even exposures to these toxins that don’t kill the animal may result in serious long-term effects, including chronic epilepsy, heart disease, and reproductive failure.

But in many cases, we are still working to figure out which level of exposure to these toxins makes an animal ill and which leads to death. We also don’t yet know the effects of long-term low-level toxin exposure, exposure to multiple toxins at the same time, or repeated exposure to the same or multiple toxins. Current NOAA research is addressing many of these questions.

A dolphin mortality event may have many contributing factors; harmful algae may only be one piece in the puzzle. Thus, we do not yet know what effects recent Dinophysis and Pseudo-nitzchia blooms may have on the current marine mammal populations living in Texas coastal waters. Coastal managers and researchers are on alert for marine mammal strandings that may be associated with exposure to harmful algae, but the story is unfolding, and is very complex.

Photo of volunteer with a microscope.

Galveston volunteer with NOAA’s Phytoplankton Monitoring Network helps identify toxic algae. (NOAA)

On March 22, 2014, four days after harmful algae were found in Galveston Bay, the M/V Summer Wind collided with oil tank-barge Kirby 27706 in Galveston Bay near Texas City, releasing approximately 168,000 gallons of thick, sticky fuel oil. The Port of Houston was closed until March 27. State and federal agencies are responding via the Unified Command. NOAA is providing scientific support and Natural Resource Damage Assessment personnel are working to identify injured natural resources and restoration needs. Much of the oil has come ashore and survey teams are evaluating the shorelines to make cleanup recommendations.

Time will tell if the harmful algal toxins and oil in Galveston Bay have a major negative effect on the marine mammals, fish, and sea turtles that live in surrounding waters. Fortunately, NOAA scientists with a range of expertise—from dolphins to harmful algae to oil spills—are on the job.

Maggie BroadwaterMaggie Broadwater is a Research Chemist and serves as coordinator for NOAA’s Harmful Algal Bloom Analytical Response Team at the National Centers for Coastal Ocean Science in Charleston, S.C.  Dr. Broadwater earned a Ph.D. in Biochemistry from the Medical University of South Carolina in 2012 and has a M.S. in Biomedical Sciences and a B.S. in Biochemistry.


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Latest Research Finds Serious Heart Troubles When Oil and Young Tuna Mix

Atlantic bluefin tuna prepares to eat a smaller fish.

Atlantic bluefin tuna are a very ecologically and economically valuable species. However, populations in the Gulf of Mexico are at historically low levels. (Copyright: Gilbert Van Ryckevorsel/TAG A Giant)

In May of 2010, when the Deepwater Horizon rig was drilling for oil in the open waters of the Gulf of Mexico, schools of tuna and other large fish would have been moving into the northern Gulf. This is where, each spring and summer, they lay delicate, transparent eggs that float and hatch near the ocean surface. After the oil well suffered a catastrophic blowout and released 4.9 million barrels of oil, these fish eggs may have been exposed to the huge slicks of oil floating up through the same warm waters.

An international team of researchers from NOAA, Stanford University, the University of Miami, and Australia recently published a study in the journal Proceedings of the National Academy of Sciences exploring what happens when tuna mix with oil early in life.

“What we’re interested in is how the Deepwater Horizon accident in the Gulf of Mexico would have impacted open-ocean fishes that spawn in this region, such as tunas, marlins, and swordfishes,” said Stanford University scientist Barbara Block.

This study is part of ongoing research to determine how the waters, lands, and life of the Gulf of Mexico were harmed by the Deepwater Horizon oil spill and response. It also builds on decades of research examining the impacts of crude oil on fish, first pioneered after the 1989 Exxon Valdez oil spill in Alaska. Based on those studies, NOAA and the rest of the research team knew that crude oil was toxic to young fish and taught them to look carefully at their developing hearts.

“One of the most important findings was the discovery that the developing fish heart is very sensitive to certain chemicals derived from crude oil,” said Nat Scholz of NOAA’s Northwest Fisheries Science Center.

This is why in this latest study they examined oil’s impacts on young bluefin tuna, yellowfin tuna, and amberjack, all large fish that hunt at the top of the food chain and reproduce in the warm waters of the open ocean. The researchers exposed fertilized fish eggs to small droplets of crude oil collected from the surface and the wellhead from the Deepwater Horizon spill, using concentrations comparable to those during the spill. Next, they put the transparent eggs and young fish under the microscope to observe the oil’s impacts at different stages of development. Using a technology similar to doing ultrasounds on humans, the researchers were able create a digital record of the fishes’ beating hearts.

All three species of fish showed dramatic effects from the oil, regardless of how weathered (broken down) it was. Severely malformed and malfunctioning hearts was the most severe impact. Depending on the oil concentration, the developing fish had slow and irregular heartbeats and excess fluid around the heart. Other serious effects, including spine, eye, and jaw deformities, were a result of this heart failure.

Top: A normal young yellowfin tuna. Bottom: A deformed yellowfin tuna exposed to oil during development.

A normal yellowfin tuna larva not long after hatching (top), and a larva exposed to Deepwater Horizon crude oil as it developed in the egg (bottom). The oil-exposed larva shows a suite of abnormalities including excess fluid building up around the heart due to heart failure and poor growth of fins and eyes. (NOAA)

“Crude oil shuts down key cellular processes in fish heart cells that regulate beat-to-beat function,” noted Block, referencing another study by this team.

As the oil concentration, particularly the levels of polycyclic aromatic hydrocarbons (PAHs), went up, so did the severity of the effects on the fish. Severely affected fish with heart defects are unlikely to survive. Others looked normal on the outside but had underlying issues like irregular heartbeats. This could mean that while some fish survived directly swimming through oil, heart conditions could follow them through life, impairing their (very important) swimming ability and perhaps leading to an earlier-than-natural death.

“The heart is one of the first organs to appear, and it starts beating before it’s completely built,” said NOAA Fisheries biologist John Incardona. “Anything that alters heart rhythm during embryonic development will likely impact the final shape of the heart and the ability of the adult fish to survive in the wild.”

Even at low levels, oil can have severe effects on young fish, not only in the short-term but throughout the course of their lives. These subtle but serious impacts are a lesson still obvious in the recovery of marine animals and habitats still happening 25 years after the Exxon Valdez oil spill.


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What Are Kids Reading About Oil Spills?

This is a post by Dr. Alan Mearns, NOAA Senior Staff Scientist.

Kids reading books in a book store.

Credit: Carolien Dekeersmaeker/Creative Commons Attribution-NonCommercial 2.0 Generic License

What are your children and their teachers reading? We might want to pay closer attention. The stories we tell our children are a reflection of how we see the world, and we want to make sure these stories have good information about our world.

I occasionally accompany my wife, a preschool teacher, to local children’s bookstores, and more often than not, find books about oil spills and other disasters.  Recently, I took a closer look at the quality of the information found in a sampling of children’s books on oil spills.

An Oil Spill Ecologist Dives into Kids’ Books

So far, the eight or so books I’ve looked at focus on one of the two major oil spills in the American mind: the 1989 Exxon Valdez oil spill in Alaska or the 2010 Deepwater Horizon spill in the Gulf of Mexico.

A number are heart-warming stories about wildlife speaking about their experience in oil and the nice people who captured, cleaned, and released them. Birds, especially pelicans, and sea otters often play a starring role in telling these stories. Several present case histories of the oil spills, their causes, and cleanup. Some books place oil spills in the context of our heavy reliance on oil, but many ignore why there’s so much oil being transported in the first place.

One book’s color drawings show oil spill cleanup methods so well you can actually see how they work—and which I think could even be used in trainings on oil spill science.

Something that may not be top-of-mind for many parents but which I appreciate is the presence of glossaries, indices, and citations for further reading. These resources can help adults and kids evaluate whether statements about these oil spills are supported by reliable information or not.

Reading Recommendations

When reading a book—whether it is about oil spills or not—with kids you know, keep the following recommendations in mind:

  • Make sure the story informs, as well as entertains.
  • Ask where the “facts” in the story came from.
  • Look for reputable, original sources of information.
  • Ask why different sources might be motivated to show information the way they do.
  • Talk to kids about thinking critically about where information comes from.

Learn more about the ocean, pollution, and creatures that live there from our list of resources for teachers and students.

Dr. Alan Mearns.Dr. Alan Mearns is Ecologist and Senior Staff Scientist with the Office of Response and Restoration’s Emergency Response Division in Seattle. He has over 40 years of experience in ecology and pollution assessment and response, with a focus on wastewater discharges and oil spills along the Pacific Coast and Alaska. He has worked in locations as varied as the Arctic Ocean, southern California, Israel, and Australia, and has participated in spill responses around the U.S. and abroad.


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Our Top 10 New Year’s Resolutions for 2014

In 2013, a NOAA team collected 14 metric tons of fishing gear, plastic, and other debris from the shoreline and waters around Hawaii's Midway Atoll. We're looking forward to keeping our coasts clean in 2014 too! (NOAA)

In 2013, a NOAA team collected 14 metric tons of fishing gear, plastic, and other debris from the shoreline and waters around Hawaii’s Midway Atoll. We’re looking forward to keeping our coasts clean in 2014 too! (NOAA)

With the end of 2013, many are reflecting on how the past year went. For NOAA’s Office of Response and Restoration, we think we handled things pretty well, despite seeing some unusual challenges come our way (e.g., grounded drilling rig, molasses spill, 70 foot stranded dock). After all, being prepared—and preparing others—for the worst is a major focus in our work.

Despite our many accomplishments of the last year, however, we know that we should always be striving to improve how we respond to oil and chemical spills, assess and restore damaged ecosystems, and reduce the threat of marine debris.

So, without further ado, here are our top 10 resolutions for 2014:

  1. Lose “wait.” That is, we’re increasing our capacity to process damage assessment cases and get dollars for restoration out the door more quickly.
  2. Get more mobile. We’re making several of our websites friendlier for mobile devices. In particular, stay tuned to response.restoration.noaa.gov and incidentnews.noaa.gov.
  3. Make more friends. We’re now on Facebook and Twitter, so don’t be shy about following us for the latest news and updates.
  4. Stay trendy. As trends change in what petroleum products America is importing and exporting, we’re working with the University of Washington to explore how this will affect our readiness to respond to the oil spills of tomorrow.
  5. Quit littering. Or rather, get others to quit littering. We’re always dreaming up better ways to change people’s behavior so that everyone’s trash, including plastics, stays out of our oceans.
  6. Get our ducks in a row. When Hurricane Sandy came racing toward the East Coast, it was bringing wind and waves that would literally reshape the shoreline. As a result, we’re updating our northeast Environmental Sensitivity Maps to reflect changes caused by the storm and to add information that would enhance the value of these geographic summaries of vulnerable coastal resources when another disaster strikes.
  7. Help others. We’re partnering with states impacted by Sandy to assess and remove marine debris from the storm, so that means getting funding out fast to those who need it.
  8. Update our look. This spring, we’ll be releasing a major update to our mapping program MARPLOT, which allows emergency responders such as firefighters to create, customize, and download maps for offline use. Users will see very high-quality base (background) maps, including the familiar sight of Google maps.
  9. Listen more. We’ll be looking forward to hearing your thoughts on restoration plans and projects around the country, starting with Deepwater Horizon public meetings across the Gulf of Mexico in January.
  10. Release a new GNOME. In 2014, we’ll be releasing GNOME 2, our next generation oil spill modeling system. GNOME 2 will offer a Web-based system for forecasting the path of spilled oil in pre-designated locations in the U.S., include better 3-D modeling support, and integrate our oil weathering model, ADIOS.

Thanks for helping us make 2013 a great year. We look forward to even more in 2014!


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Study Shows Gulf Dolphins in Poor Health following Deepwater Horizon Oil Spill

A dolphin is observed with oil on its skin on August 5, 2010, in Barataria Bay, La.

A dolphin is observed with oil on its skin on August 5, 2010, in Barataria Bay, La. (Louisiana Department of Wildlife and Fisheries/Mandy Tumlin)

Barataria Bay, located in the northern Gulf of Mexico, received heavy and prolonged oiling after the 2010 Deepwater Horizon oil spill. This area is also home to many bottlenose dolphins. In the wake of the spill, how healthy are dolphins living in this area? And how do they compare to dolphins living elsewhere?

As part of the Natural Resource Damage Assessment for the Deepwater Horizon oil spill, a team of more than 50 government, academic, and non-governmental researchers assessed the health of bottlenose dolphins living in Louisiana’s Barataria Bay, which received heavy oiling following the Deepwater Horizon spill, and in Florida’s Sarasota Bay, which was not oiled following the spill.

The team of scientists and veterinarians temporarily captured live dolphins, performed comprehensive health examinations on them at the site, and then released them. The health exam included measuring each dolphin’s length and weight; doing a physical exam; sampling skin, blood, and blubber; and performing an ultrasound to evaluate their internal organs, particularly their lung condition and pregnancy status. The team has published the results of this study in the peer-reviewed journal Environmental Science & Technology.

We spoke with two of the NOAA scientists involved, Dr. Lori Schwacke and Dr. Teri Rowles, to learn more about the research and what their findings mean for dolphins in the Gulf of Mexico.

Q: When did you conduct the dolphin health assessments and what did you observe?

Aug 2011: A veterinarian performs an ultrasound to assess a Barataria Bay dolphin’s health.

Aug 2011: A veterinarian performs an ultrasound to assess a Barataria Bay dolphin’s health. (NOAA)

The first health assessments were conducted in the summer of 2011 in Barataria Bay, La., and in Sarasota Bay, Fla. We found that the dolphins in Barataria Bay were in very poor health. Many of them were underweight and their blood tests showed a number of abnormal conditions such as anemia, elevated markers of inflammation, and increased liver enzymes.

Also, one rather unusual condition that we noted in many of the Barataria Bay dolphins was that they had very low levels of some hormones (specifically, cortisol) that are produced by the adrenal gland and are important for a normal stress response. Under a stressful condition, such as being chased by a predator, the adrenal gland produces cortisol, which then triggers a number of physiological responses including an increased heart rate and increased blood sugar. This gives an animal the energy burst that it needs to respond appropriately. In the Barataria Bay dolphins, cortisol levels were unusually low. The concern is that their adrenal glands were incapable of producing appropriate levels of cortisol, and this could ultimately lead to a number of complications and in some situations even death.

We also found significant lung disease. We looked for several different abnormalities based on studies that have been done on captive animals, and what we saw was most consistent with pneumonia. In some of the animals, the lung disease was so severe that we considered it life-threatening for that individual.

Q: How serious were the conditions observed in dolphins from Barataria Bay?

Some of the conditions observed in these dolphins were very serious. Some of the animals had multiple health issues going on, such as lung disease, very high liver enzymes, and indications of chronic inflammation. The veterinarians assigned a prognosis for each animal and nearly half of the Barataria Bay dolphins were given a guarded (uncertain outcome) or worse prognosis. In fact, 17 percent of them were given a poor or grave prognosis, indicating that they weren’t expected to live.

In comparison, in Sarasota we had only one guarded prognosis and the rest were in good or fair condition. Sarasota dolphins were much healthier than Barataria Bay dolphins.

Q: Have you been able to follow up on the status of any of the dolphins examined during these assessments?

We know one of them died. Y12 was a 16-year-old male that we examined in August 2011. He was underweight and many of his blood parameters were out of the expected range. The veterinary team assigned him a grave prognosis. His carcass was recovered by the Louisiana Department of Wildlife and Fisheries in January of 2012. So we know that he only survived a little over five months  after the health assessment was conducted. . But often carcasses aren’t recovered, and there were other dolphins that we examined that we didn’t expect to live for very long.

We’re also conducting photographic monitoring studies to monitor the survival and reproductive success or failure of the dolphins we sampled. Several of the females we sampled in Barataria Bay were pregnant so we’ve been monitoring them around and past their due date to see whether or not we see them with a calf. The gestation period for a dolphin is around 12 months, so these monitoring studies take a little bit longer. We hope to report those results soon.

Q: Are the disease conditions observed in Barataria Bay dolphins—lung disease, compromised stress hormone response—consistent with those expected from exposure to oil?

The decreased cortisol response is something fairly unusual but has been reported from experimental studies of mink exposed to fuel oil. The respiratory issues are also consistent with experimental studies in animals and clinical reports of people exposed to petroleum hydrocarbons.

Q: How do you know these health impacts weren’t caused by other lingering pollutants in the Gulf?

We analyzed the dolphins’ blubber to evaluate the levels of contaminants that have been previously reported in marine mammal tissues and then also linked with health effects. This covered a fairly broad suite of contaminants and included polychlorinated biphenyls (PCBs) as well as a suite of persistent pesticides that we know accumulate in dolphins over their lifetime, leaving a record of their exposure. We found that the levels of these pollutants in Barataria Bay dolphins were actually lower than the levels in Sarasota Bay dolphins. The levels from Barataria Bay dolphins were also low compared to previously reported levels in dolphins from a number of other coastal sites in the southeastern U.S. Therefore, we don’t think that the health effects we saw can be attributed to these other pollutants that we looked at.

Q: Are there more dolphin health assessments currently taking place or planned for the future?

Yes, in the summer of 2013 we repeated the studies in Sarasota Bay and Barataria Bay and expanded the studies to Mississippi Sound, where we assessed dolphins both in Mississippi and in Alabama waters. Those samples and data are still being analyzed.

Q: Was there anything about this study that you found surprising?

The magnitude of the health effects that we saw was surprising. We’ve done these health assessments in a number of locations across the southeast U.S. coast and we’ve never seen animals that were in this poor of condition.

Q: How does this study relate to or inform the investigation of the high number of marine mammal strandings observed along the Gulf Coast since February 2010 (the Unusual Mortality Event), which pre-dates the Deepwater Horizon oil spill?

Following the Deepwater Horizon oil spill, numerous dolphins were documented encountering oil, such as those in this photo from July 2010.

Following the Deepwater Horizon oil spill, numerous dolphins were documented encountering oil, such as those in this photo from July 2010. (NOAA)

The Unusual Mortality Event that’s underway is in the same general geographic area as the Deepwater Horizon oil spill response and overlaps with the Natural Resource Damage Assessment. These findings overlap with the high number of strandings, particularly in the Barataria Bay or central Louisiana area.

When you have a significant event like an oil spill or an Unusual Mortality Event, being able to study both live and dead animals provides more information about what might be going on as animals get ill and then die. Having access to findings from both of these studies enables us to look for commonalities between what we’re finding in the sick animals and what we’re finding in the dead animals to better evaluate causes and contributing factors.

Q: Outside of NOAA, who else did you work with to perform the health assessment?

This work was part of the Deepwater Horizon Natural Resource Damage Assessment being conducted cooperatively among NOAA, other federal and state trustees, and BP. This wouldn’t have been possible without the help of a number of our partners, including the National Marine Mammal Foundation, Chicago Zoological Society, and Louisiana Department of Wildlife and Fisheries. Also, Seaworld and the Georgia Aquarium provided personnel to support our studies. Their expertise and experience were key to getting these studies done.

We greatly appreciate the efforts of researchers from the Sarasota Dolphin Research Program, which led the dolphin health assessments in Sarasota.

Watch a video of the researchers as they temporarily catch and give health exams to some of the dolphins in Barataria Bay, La., in August of 2011:


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Let Maps Open up the World Around You on GIS Day

Atlantic ERMA view of a grounded tanker after Post Tropical Cyclone Sandy.

In our online GIS tool Atlantic ERMA, you can see NOAA National Geodetic Survey aerial photography showing the derelict tanker John B. Caddell grounded on Staten Island, N.Y., following Post Tropical Cyclone Sandy. Red markers show field photos such as the image seen in the pop-up window in Atlantic ERMA. (NOAA)

Happy GIS Day! Today, GIS events are being hosted around the globe to highlight and celebrate the transformational role of Geographic Information Systems, or GIS.

GIS is mapping software that can display multiple sets of location-based information onto a single map. Viewing information this way can help you visualize lots of data and identify trends and relationships, such as the potential health impacts of living near power plants and major highways, or how many pizza places are within 10 miles of your house.

Like offices and agencies around the world, we in NOAA’s Office of Response and Restoration use GIS in our everyday work. Take a look at a few of the ways we use GIS—and you can too—to reduce environmental threats from coastal pollution.

Mapping Environmental Sensitivity

One of our teams is developing Environmental Sensitivity Index (ESI) maps using GIS technology to integrate and share information about sensitive shoreline resources, such as birds, wildlife, fisheries, and public beaches. Historically used for oil and chemical spill response and planning, these maps have become effective tools in preparing for and responding to storms, hurricanes, and other coastal disasters.

ESI data are published in a variety of GIS formats, including a file geodatabase and map document, that simplify their use within the GIS program ArcMap. Users can query data for their region to see what species are present in January, where threatened and endangered species live, what shoreline types are present, etc. You can download ESI data and ESI tools from our website and use them yourself.

Mapping Resources during a Disaster

MARPLOT is the mapping component in CAMEO, our software suite of tools for chemical spill response, which we develop with the U.S. Environmental Protection Agency (EPA). It’s a free and easy-to-use GIS system that emergency responders and planners use to display information from other programs in the CAMEO suite. This could mean mapping estimates of high-risk areas for toxic chemical clouds (from ALOHA) or the locations of chemical production and storage facilities in relation to schools and hospitals (from CAMEOfm).

MARPLOT can also be used as a general mapping tool, which allows users to add objects, move around the map, and get population estimates. Some users have adapted MARPLOT, which operates without an Internet connection, for use during tornado response, search and rescue operations, and emergency planning. The development team is working on a major revision to MARPLOT, which will include access to global basemaps, enhanced web-based features, and additional data management capabilities.

Mapping Environmental Response

Web mapping for environmental response, such as oil spills, has come a long way in the past decade. NOAA is a leader in this digital mapping revolution with ERMA®, the Environmental Response Management Application, which we designed with the University of New Hampshire’s Coastal Response Research Center and the EPA. It’s an online mapping tool offering comprehensive access to environmental response information and is customized for many coastal areas of the U.S.

ERMA integrates both static and real-time data, such as ESI maps, ship locations, weather, and ocean currents, in a centralized map for use during a disaster such as an oil spill or hurricane. It provides environmental responders and decision-makers with up-to-date information for planning, response, assessment, and restoration activities. The application incorporates data into a convenient, web-based GIS mapping platform that can be accessed simultaneously by a variety of users via the Internet.

ERMA Deepwater Gulf Response is currently assisting with the ongoing response operations for the 2010 Deepwater Horizon oil spill in the Gulf of Mexico. Data related to this oil spill is displayed here and updated daily. In the northeast, Atlantic ERMA provided support to the Post Tropical Cyclone Sandy pollution response along the coast of New Jersey, New York, and Connecticut.

To the far north, Arctic ERMA has been used to integrate and display response-related information from oil spill technology demonstrations aboard an icebreaker in the remote Arctic Ocean and to display the data and high resolution imagery of the ShoreZone project, which seeks to map all 46,600 miles of Alaska’s coastal habitat and features. You can view all of the regional ERMA sites on our website.

Discover Your World

GIS DayYou can explore on the GIS Day website some of the amazing stories that GIS can help tell:

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