by Laura Tiu | Apr 22, 2016
The Deepwater Horizon (DWH) oil spill occurred about 50 miles offshore of Louisiana in April 2010. Approximately 172 million gallons of oil entered the Gulf of Mexico. Five years after the incident, locals and tourists still have questions. This article addresses the five most common questions.
QUESTION #1: Is Gulf seafood safe to eat?
Ongoing monitoring has shown that Gulf seafood harvested from waters that are open to fishing is safe to eat. Over 22,000 seafood samples have been tested and not a single sample came back with levels above the level of concern. Testing continues today.
QUESTION #2: What are the impacts to wildlife?
This question is difficult to answer as the Gulf of Mexico is a complex ecosystem with many different species — from bacteria, fish, oysters, to whales, turtles, and birds. While oil affected individuals of some fish in the lab, scientists have not found that the spill impacted whole fish populations or communities in the wild. Some fish species populations declined, but eventually rebounded. The oil spill did affect at least one non-fish population, resulting in a mass die-off of bottlenose dolphins. Scientists continue to study fish populations to determine the long term impact of the spill.
Question #3: What cleanup techniques were used, and how were they implemented?
Several different methods were used to remove the oil. Offshore, oil was removed using skimmers, devices used for removing oil from the sea’s surface before it reaches the coastline. Controlled burns were also used, where surface oil was removed by surrounding it with fireproof booms and burning it. Chemical dispersants were used to break up the oil at the surface and below the surface. Shoreline cleanup on beaches involved sifting sand and removing tarballs and mats by hand.
QUESTION #4: Where did the oil go and where is it now?
The oil spill covered 29,000 square miles, approximately 4.7% of the Gulf of Mexico’s surface. During and after the spill, oil mixed with Gulf of Mexico waters and made its way into some coastal and deep-sea sediments. Oil moved with the ocean currents along the coast of Texas, Louisiana, Mississippi, Alabama, and Florida. Recent studies show that about 3-5% of the unaccounted oil has made its way onto the seafloor.
QUESTION #5: Do dispersants make it unsafe to swim in the water?
The dispersant used on the spill was a product called Corexit, with doctyl sodium sulfosuccinate (DOSS) as a primary ingredient. Corexit is a concern as exposure to high levels can cause respiratory problems and skin irritation. To evaluate the risk, scientists collected water from more than 26 sites. The highest level of DOSS detected was 425 times lower than the levels of DOSS known to cause harm to humans.
For additional information and publications related to the oil spill please visit: https://gulfseagrant.wordpress.com/oilspilloutreach/
Adapted From:
Maung-Douglass, E., Wilson, M., Graham, L., Hale, C., Sempier, S., and Swann, L. (2015). Oil Spill Science: Top 5 Frequently Asked Questions about the Deepwater Horizon oil spill. GOMSG-G-15-002.
An estimate of what happened to approximately 200 million gallons oil from the DWH oil spill. Data from Lehr, 2014. (Florida Sea Grant/Anna Hinkeldey)
The Foundation for the Gator Nation, An Equal Opportunity Institution.
by Laura Tiu | Mar 12, 2016
It is that time of year again. Spring Break brings locals and visitors back to the beach for fun in the sun. It is important to remind folks that part of having fun is playing it safe. At the beach, this means knowing and following some pretty basic safety guidelines.
Not all beaches have lifeguards present, you have to be responsible for your own safety. When visiting the beach, it is important to consider the tide and surf conditions. To minimize the risks of drowning or serious injury, a uniform warning flag program was developed for use by Florida’s beachfront communities. Florida’s beach warning flag program uses flags in four colors accompanied by interpretive signs along the beach to explain the meaning of each color in both English and Spanish. Please follow the guidelines and flags posted.
You also need to check for the presence of rip currents. Rip currents are powerful currents of water moving away from the shore. They can pull even a strong swimmer out to sea. It is best to not enter the water where a rip current is present. However, if you find yourself caught in one, try to relax and don’t fight the current, swim out of the current parallel to the shore and swim to shore when you no longer feel the pull of the current.
Protect your skin. Just one blistering sunburn in childhood or adolescence more than doubles a person’s chance for developing melanoma later in life. Racking up more than five sunburns at any age also doubles the risk for melanoma. Keep sunburn at bay by properly applying sunscreen of SPF 15 or higher. Try to spend some time in the shade, wear a hat and sunglasses to protect your eyes. Remember to hydrate by drinking plenty of water too.
It is good to know a little bit about and appreciate the ocean life you might meet on the beach. Shark attacks aren’t common, especially in shallow shore areas, but always be on the lookout. Shells on mussels, clams and oysters can be very sharp so be careful walking near them. Some species of jellyfish have tentacles that contain venom and can sting you. Avoid them if you can. Learn about the animals you will find at the beach and you will be able to co-exist with little risk.
Many ocean creatures need our protection. Sea turtles and many shorebirds are protected and there are things you can do to help them. For sea turtles, keep the beach clean (remove all trash and furniture), dark (turn off lights on beach and don’t use flashlights) and flat (fill in any holes you dig so that turtles don’t become trapped). In fact, it’s recommended that you take only pictures and leave only footprints. Stay away from nesting shorebird habitat. Many beaches do not allow you to bring your pets to the beach for health and safety reasons and to protect venerable wildlife. Be sure to know the rules before you bring Fido to the beach.
Finally, please help keep the beach tidy. When your visit is over, take back everything you brought. Food scraps attract unwanted animals, fishing line injures and kills birds and other wildlife and plastic is harmful to both the environment and the animals that sometimes mistake it for food. Abandoned beach furniture and toys can obstruct sea turtle nesting and hatching. The best policy is to leave the beach cleaner than you found it.
Have a good time at the beach. Take a little time to learn and follow the safety rules that are there for your protection. Practice good citizenship by caring for and conserving the beach and ocean ecosystems in order to keep them beautiful in the present and for future generations.
Many counties in the panhandle have lighting and barrier ordinances to protect wildlife and workers.
Photo: Rick O’Connor
Follow these beach safety tips for helping your family enjoy the beach while protecting coastal wildlife.
by Laura Tiu | Nov 20, 2015
The Panhandle Outdoors LIVE team, with Extension Agents from eight counties, hosted an outdoor field day on August 26, 2015. Twenty-three participants from over eight counties in Florida attended the event and traveled to three local springs: Vortex, Ponce de Leon, and Morrison Springs. The goal of the day was to learn about spring characteristics, history, biodiversity and management issues. These popular springs in the western Panhandle are managed by three different entities – the private sector, local government and a state agency.
The day began at Vortex Springs. Three generations of the same family have owned and managed this popular dive resort in the Panhandle. The current owners shared the history of the spring along with a family photo album highlighting the growth and development over the years.
Vortex Springs Dive Resort
Vortex Spring produces 28 million gallons of crystal clear water daily at a year-round temperature of 68 degrees. Depths in the spring basin range from about 50 feet for a cavern dive and up to 115 feet for a cave dive. The bottom of the spring bowl is sandy, with limestone near the vent. Vortex waters flow out of the 225-foot-diameter spring pool to form Blue Creek, which flows over a half-mile before entering the Choctawhatchee River. Fish at the spring are tame, coming right up to visitors, and include bluegills, channel catfish, American freshwater eels, gar, redhorse suckers, shadow bass, and exotic species such as koi and goldfish (floridasprings.org). One of the biggest environmental challenges the owners face is controlling an invasive aquatic plant, hydrilla, which rings the basin.
The next stop was Ponce de Leon Springs State Park where participants learned about the springs and had lectures on water quality, Florida Friendly landscapes and storm water management. Managed by a state agency, this beautiful spring is named for Juan Ponce de León, who led the first Spanish expedition to Florida in 1513 – as legend has it – in search of the “Fountain of Youth”. Visitors might well regain their youth by taking a dip in the clear waters where the temperature is a shocking 68 degrees F. year-round.
Leon County Extension Agent, William Sheftall, shares information on watershed management
The main spring produces 14 million gallons of water daily into a crescent-shaped basin with depths averaging five feet but increasing to 16 feet over the vents. The bottom is sand and limestone and gives the popular swimming area a light greenish blue appearance. The spring-run is approximately 350 feet in length and flows into Sandy Creek, a blackwater stream, which subsequently flows out of the park and into the Choctawhatchee River (floridasprings.org).
The spring run at Ponce de Leon Springs flowing into Sandy Creek
Our final destination was Morrison Springs. Morrison Springs is managed by Walton County, whose Commissioner and Habitat Conservation Plan Coordinator shared the history of the springs and the development work that has been completed. The large, sandy-bottomed spring is surrounded by a 161-acre park and is a popular spot for swimming, snorkeling, diving, birding, photography and nature walks . Morrison Spring discharges an average of 48 million gallons of crystal-clear water each day to create a 250-foot-diameter spring pool and a spring run that flows into the Choctawhatchee River (floridasprings.org). The springs are home to a healthy fish population with largemouth bass, bluegill, carp, white mullet, and pickerel all being seen that day.
Beautiful cypress trees and knees ring Morrison Springs
Field day participants (86%) reported an increase in knowledge of the springs after the event with 59% indicating that they would change their behavior based on the information presented. Behavior changes mentioned were cleaning up trash, controlling personal fertilizer applications, making sure their lawn care company was certified, controlling erosion, conserving water and planting native plants. All of the participants (100%) reported being interested in attending future Panhandle Outdoor Live events. That is just the kind of encouragement the team needed, so be sure to watch our website for future event announcements.
