8 Manatees Found Dead, Toxic Algae Suspected as Culprit
An illness that might be linked to toxic algae blooms combined with a record number of boat collisions has taken a toll on Florida's manatee population this summer. Since May, eight dead manatees have been found in the Indian River Lagoon in Brevard County, a waterway that's been fouled with microscopic toxic algae, the Orlando Sentinel reported.
Florida manatee cow and calf.Keith Ramos, USFWS
"We are still narrowing down the cause, but the hypothesis is still that the change of vegetation that the manatees are eating makes them susceptible to complications in their guts," Martine de Wit, lead veterinarian with the Florida Fish and Wildlife Conservation Commission, said. De Wit said the manatees have been found with little or no seagrass in their stomachs. The animals digestive systems were filled instead with algae commonly known as seaweed. Researchers say the animals succumb to illness so quickly they drown. Videos from residents have documented the manatee's struggle.
The water coming from Lake Okeechobee contains fertilizer, sewage and stormwater, which is flushed into portions of the Indian River, according to the Sentinel. The stretch of the Indian River has been "a killing field" for brown pelicans, bottlenose dolphins, manatees and many species of fish. The microscopic algae has turned waters a greenish, brown color, some spots as thick as guacamole, as previously reported by EcoWatch.
This isn't the only year toxic algae has impacted manatees. More than 150 manatees have died in the past four years, the Sentinel said.
The manatees are also facing an increased threat from recreational boaters. Manatees are being killed by boat strikes at a record pace this summer, Florida Today reported. "As of July 22, the Florida Fish and Wildlife Conservation Commission had counted 71 manatees killed by boats, compared with 58 manatees killed by boats by mid-July 2009. In 2009, a record 97 manatees died from boat strikes," the publication said.
An increase in boat traffic on Florida's waterways—because of less expensive fuel, a mild winter and a hot summer—is causing more collisions with manatees, according to Dr. Katie Tripp, the director of science and conservation at Save the Manatee. Tripp argues the increase in manatee boat strikes shouldn't be attributed to a population increase. "We disagree," said Tripp. "We believe that educated, compliant and watchful vessel operators are key."
Though manatees are already facing enough threats, the species might also lose some of their protection under the federal Endangered Species Act. Save the Manatee is urging the U.S. Fish and Wildlife Service not to change the status of manatees from endangered to threatened.
"We firmly believe downlisting without better controlling the escalating threats is premature," said Tripp. The organization is calling for residents to sign Florida's Clean Water Declaration in the effort to reduce pollutants in the state's waterways.
However, Fish and Wildlife Service officials don't appear to be rethinking their plan. Aerial surveys show the manatee population has risen from 1,267 to more than 6,300 in 25 years, according to the agency website. Officials also believe there is no direct link between manatee deaths and blue green algae blooms in the St. Lucie River and estuary in Martin County Florida. A decision on reclassifying manatees could come as early as next year. A change in the status could effect boating speeds in waterways and access to protected areas.
The toxic algae problem is not limited to Florida. Algae blooms that have been occurring in Lake Erie since 2013 returned last week. Sections of Presque Isle State Park are closed because of the harmful algae blooms, the Erie Times News reported.
Jim Grazio, Great Lakes biologist for the Pennsylvania Department of Environmental Protection, told the Erie Times, "Harmful algae blooms are capable of producing toxins that can cause skin irritations, nausea or vomiting in humans, and potentially be fatal to animals."
"Some of the features of climate change, such as warmer ocean temperatures and increased light availability through the loss of sea ice in the Arctic, are making conditions more favorable for phytoplankton growth—both toxic and nontoxic algae—in more regions and farther north," Kathi Lefebvre, a biologist at NOAA's Northwest Fisheries Science Center in Seattle, told the Times.
By Gwen Ranniger
Fertility issues are on the rise, and new literature points to ways that your environment may be part of the problem. We've rounded up some changes you can make in your life to promote a healthy reproductive system.
Infertility and Environmental Health: The Facts<ul> <li>Sperm count is declining steeply, significantly, and continuously in Western countries, with no signs of tapering off. Erectile dysfunction is on the rise, and women are facing increasing rates of miscarriage and difficulty conceiving.</li><li>Why? A huge factor is our environmental health. Hormones (particularly testosterone and estrogen) are what make reproductive function possible, and our hormones are increasingly being negatively affected by harmful, endocrine-disrupting chemicals commonplace in the modern world—in our homes, foods, and lifestyles.</li></ul>
What You Can Do About It<p>It should be noted that infertility can be caused by any number of factors, including medical conditions that cannot be solved with a simple change at home.</p><p><em>If you or a loved one are struggling with infertility, our hearts and sympathies are with you. Your pain is validated and we hope you receive answers to your struggles.</em></p><p>Read on to discover our tips to restore or improve reproductive health by removing harmful habits and chemicals from your environment.</p>
Edit Your Health<ul><li>If you smoke, quit! Smoking is toxic, period. If someone in your household smokes, urge them to quit or institute a no-smoking ban in the house. It is just as important to avoid secondhand smoke.</li><li>Maintain a healthy weight. Make sure your caloric intake is right for your body and strive for moderate exercise.</li><li>Eat cleanly! Focus on whole foods and less processed meals and snacks. Studies have found that eating a Mediterranean-style diet is linked to increased fertility.</li><li>Minimize negative/constant stress—or find ways to manage it. Hobbies such as meditation or yoga that encourage practiced breathing are great options to reduce the physical toll of stress.</li></ul>
Edit Your Home<p>We spend a lot of time in our homes—and care that what we bring into them will not harm us. You may not be aware that many commonly found household items are sources of harmful, endocrine-disrupting compounds. Read on to find steps you can take—and replacements you should make—in your home.</p><p><strong>In the Kitchen</strong></p><ul> <li>Buy organic, fresh, unprocessed foods whenever possible. <a href="https://www.ehn.org/clean-grocery-shopping-guide-2648563801.html" target="_blank">Read our grocery shopping guide for more tips about food.</a></li><li>Switch to glass, ceramics, or stainless steel for food storage: plastics often contain endocrine-disrupting chemicals that affect fertility. <a href="https://www.ehn.org/bpa-pollution-2645493129.html" target="_blank" rel="noopener noreferrer">Learn more about the dangers of plastic here.</a></li><li>Ban plastic from the microwave. If you have a plastic splatter cover, use paper towel, parchment paper, or an upside-down plate instead.</li><li>Upgrade your cookware: non-stick may make life easier, but it is made with unsafe chemical compounds that seep into your food. Cast-iron and stainless steel are great alternatives.</li><li>Filter tap water. Glass filter pitchers are an inexpensive solution; if you want to invest you may opt for an under-the-sink filter.</li><li>Check your cleaning products—many mainstream products are full of unsafe chemicals. <a href="https://www.ehn.org/how-to-shop-for-cleaning-products-while-avoiding-toxics-2648130273.html" target="_blank" rel="noopener noreferrer">Check out our guide to safe cleaning products for more info</a>.</li></ul><p><strong>In the Bathroom </strong></p><ul> <li>Check the labels on your bathroom products: <em>fragrance-free, paraben-free, phthalate-free</em> and organic labels are all great signs. You can also scan the ingredients lists for red-flag chemicals such as: triclosan, parabens, and dibutyl phthalate. Use the <a href="https://www.ewg.org/skindeep/" target="_blank">EWG Skin Deep database</a> to vet your personal products.</li><li>Ditch the vinyl shower curtain—that new shower curtain smell is chemical-off gassing. Choose a cotton or linen based curtain instead.</li><li>Banish air fresheners—use natural fresheners (an open window, baking soda, essential oils) instead.</li></ul><p><strong>Everywhere Else</strong></p><ul><li>Remove wall-to-wall carpet. If you've been considering wood or tile, here's your sign: many synthetic carpets can emit harmful chemicals for years. If you want a rug, choose wool or plant materials such as jute or sisal.</li><li>Prevent dust build-up. Dust can absorb chemicals in the air and keep them lingering in your home. Vacuum rugs and wipe furniture, trim, windowsills, fans, TVs, etc. Make sure to have a window open while you're cleaning!</li><li>Leave shoes at the door! When you wear your shoes throughout the house, you're tracking in all kinds of chemicals. If you like wearing shoes inside, consider a dedicated pair of "indoor shoes" or slippers.</li><li>Clean out your closet—use cedar chips or lavender sachets instead of mothballs, and use "green" dry-cleaning services over traditional methods. If that isn't possible, let the clothes air out outside or in your garage for a day before putting them back in your closet.</li><li>Say no to plastic bags!</li><li>We asked 22 endocrinologists what products they use - and steer clear of—in their homes. <a href="https://www.ehn.org/nontoxic-products-2648564261.html" target="_blank">Check out their responses here</a>.</li></ul>
Learn More<ul><li>For more information and action steps, be sure to check out <em>Count Down: How Our Modern World Is Threatening Sperm Counts, Altering Male and Female Reproductive Development, and Imperiling the Future of the Human Race</em> by EHS adjunct scientist Shanna Swan, PhD: <a href="https://www.shannaswan.com/" target="_blank" rel="noopener noreferrer">available for purchase here.</a></li><li><a href="https://www.ehn.org/st/Subscribe_to_Above_The_Fold" target="_blank" rel="noopener noreferrer">Sign up for our Above the Fold Newsletter </a>to stay up to date about impacts on the environment and your health.</li></ul>
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