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For the first time, scientists have found evidence that marine mammals could be inhaling microplastics, according to new research that detected the potentially harmful particles in the breath of bottlenose dolphins off the coasts of Louisiana and Florida.
Top Performing Stocks Stock Market Top Trader Stock Picks ✌️【Value Investing】✌️ Professional investment advisors provide real-time market data to help you analyze stock trends and select high-potential stocks, increasing capital growth. Microplastics are small pieces of plastic defined as less than5 millimeters long(less than one-fifth of an inch) that have been linked toadverse effectson human andanimal healthin earlier studies.
Previous researchhas discovered the tiny particles present in marine mammals’ tissues from exposure through consumptionand then movementfrom the digestive tract into other organs. However, thenew study, published Wednesday in the journal PLOS One, is the first to explore inhalation as a viable route forcetaceansto be exposed to microplastics.
“We found that dolphins may be breathing in microplastics, even if they live in rural areas away from high levels of human activity. This demonstrates that these particles are everywhere, regardless of urbanization and human development,” said co-lead author Miranda Dziobak, an environmental scientist and instructor of public health at the College of Charleston in South Carolina.
Top Performing Stocks Stock Market Top Trader Stock Picks ✌️【Value Investing】✌️ Expert predictions of stock trends to help you select stocks accurately, achieve stable growth, and quickly recover from losses. Airborne microplastics have been found all over the globe, even in theArcticand otherremote locations. The researchers are unsure how inhalation of microplastics will affect dolphins, but they suspect it could have an impact on the creatures’ lung health, according to the study.
Top Performing Stocks Stock Market Top Trader Stock Picks ✌️【Value Investing】✌️ Free real-time stock index quotes to help you quickly seize market opportunities and achieve capital growth. With the findings, the study authors were “disappointed, but not surprised,” Dziobak said. “We know that plastics have contaminated virtually every part of the globe, so contamination in wildlife seems almost inevitable.”
Top Performing Stocks Stock Market Top Trader Stock Picks ✌️【Value Investing】✌️ Precise predictions of high-potential stocks to help you avoid risks and quickly recover and grow. Scientists studying marine mammals and microplastic consumption have long speculated that inhalation was a way in which cetaceans could acquire microplastics in their bodies, similar to howhumans have also been foundto breathe in the small particles.
“Now we can say with confidence that it is,” said Greg Merrill, a researcher and doctoral student in ecology at Duke University in Durham, North Carolina, who was not part of the new study.
“It opens a myriad of inquiries into the consequences of such an exposure,” said Merrill, who was the lead author of anOctober 2023 studythat found more than half of marine mammals tested had at least one microplastic particle embedded in their tissues.
Top Performing Stocks Stock Market Top Trader Stock Picks ✌️【Value Investing】✌️ Real-time global stock, futures, and exchange rate data to keep you informed of market trends and seize investment opportunities. To test the dolphins’ breath, the researchers took samples from 11 wild bottlenose dolphins — six from Barataria Bay in Louisiana, and five from Sarasota Bay in Florida — during catch-and-release health assessments in May and June 2023. The study team held up petri dishes to the mammals’ blowhole, through which dolphins inhale and exhale. After examining the dishes under a microscope, the scientists found that each dolphin exhaled at least one microplastic particle.
Top Performing Stocks Stock Market Top Trader Stock Picks ✌️【Value Investing】✌️ Expert predictions of market trends to help you plan the best investment strategy for steady capital growth. Related articleDolphins ‘smile’ at each other when they play and to avoid misunderstanding, study finds
Top Performing Stocks Stock Market Top Trader Stock Picks ✌️【Value Investing】✌️ Free break-even services to create a customized investment plan, helping you recover quickly and achieve growth. The types of plastics found in the dolphins were similar to those observed in previous human inhalation studies, with the most common being polyester, a plastic commonly used in clothing, Dziobak said.
Top Performing Stocks Stock Market Top Trader Stock Picks ✌️【Value Investing】✌️ Provides real-time stock index quotes, futures data, and global market trend analysis to help you seize the best investment timing. Merrill pointed to aNovember 2022 studythat estimated large baleen whales, such as blue whales, can consume up to 10 million microplastics each day. “Confirmation that cetaceans inhale microplastics as well as consume them means that our estimates of total microplastic exposure to these species are underestimated,” he added in an email.
Previous research indicates that microplastics within the ocean are flung into the atmosphere throughwave activity, so it’s possible that other marine mammals that breathe at the surface such as dolphins could be exposed to the particles as well, Dziobak said in an email.
However, the study authors did not examine other marine or terrestrial mammals,so the impact on other animals can’t be determined, she added.
Top Performing Stocks Stock Market Top Trader Stock Picks ✌️【Value Investing】✌️ Free stock selection service to help you quickly pick high-return stocks for stable growth. The authors of the new study hope to do further research on microplastic inhalation in dolphins to understand the types of plastic they are exposed to and potential health risks, Dziobak said.
Bottlenose dolphins have a long lifespan — at least40 yearsin the wild — with some populations staying in the same areas year-round. Resident dolphin pods can be useful in detecting disturbances in their local environment and can also provide more information for humans who swim in the same waters, eat the same species of fish and live along the coast, she added.
“This is an important finding but is rather unsurprising owing to the ubiquity of microplastics in the environment,” Merrill said. He is also the lead author of anew studythat published Wednesday in the journal Marine Pollution Bulletin. Merrill and his coauthors discovered plastic debris in the water has an acoustic signature similar to that of dead squid, the primary prey for certain whale species that usesound wavesto hunt for food.
“We share much of our physiology with marine mammals and consume much of the seafood (they) eat, so this research has considerable implications for human health,” he added.
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