A dolphin spotted in East Rockaway’s Mill River last month was found dead, a marine rescue center announced Sunday.
The cause of the death of the hyperactive and social-loving dolphin is still unknown and the autopsy is pending, said the NY Maritime Rescue Center of the nonprofit Riverhead.
“The staff are extremely upset about this change and will share the results of the autopsy when they become available,” the group wrote on Facebook.
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The center said at the time, the short, 5-foot long-beak dolphin was discovered in the Mill River and did not appear to be stressed.
Spokesperson Maxine Montello said dolphins are known to follow the food, so it is possible that this is how the fish swims across the East Rockaway Canal and into the river.
The center said it was hoping the dolphin would return to sea on its own, especially when the full moon is expected to bring in higher tides. The waiting center for intervention is based on expert recommendations and dolphins’ behavior and position in a winding river.
The center said rescuers planned a herding operation to bring the animal closer to the open water on Thursday to ease its stress. A shallow river is not a normal habitat for dolphins.
Chemicals including many compounds used in plastic production have not been previously reported in marine mammals, but are known to impair the health of laboratory rodents and may contribute to the part that caused the deaths of these dolphins
Led by Annie Page-Karjian of Florida Atlantic University, the study was published in the journal Frontiers in Marine Science and describes findings in 83 toothed whales (whales with teeth) have been stranded since five. 2012-18. They belong to 11 different species of dolphins and small whales, though more than half are the familiar bottlenose dolphin.
What’s unusual in this new study is the range of pollutants being tested. These include various compounds used in the manufacture of plastics that are also known to be endocrine disruptors in rodents.
Further analyzes revealed metals such as cadmium and mercury; herbicide atrazine; and triclosan, an antibacterial and antifungal agent used in skincare products and toothpaste.
On an individual basis, it is unlikely that the pollutants will reach concentrations high enough to be lethal to marine mammals, but Dr. Page-Karjian says the Ian Terry Zach Swerdzewski dolphin crash shirt chronic effects of the combination. Various pollution needs attention.
She said: “Sublethal cell changes associated with exposure to a toxic substance in free oral cells can lead to deterioration of health and, in combination with other factors, may contribute to this,” she said. stranding. ”
Francesca Bevan, director of chemistry policy and advocacy at the Marine Conservation Society, said the US study had implications for environmental research on this side of the Atlantic.
“This research is important in increasing understanding of the pollutants that are released into the environment and ultimately in crustaceans,” she said.
“The presence of these chemical contaminants in the Ian Terry Zach Swerdzewski dolphin crash shirt environment is making wildlife more vulnerable to other environmental pollutants, thus making them the less resistant impact of these pollutants.
“It’s critically important that these studies are done more, tracking an even larger range of contaminants, to understand the real picture of chemical pollution and its effects in the Marine Environment.”