They added bromide to the mixture and in fact the cyanobacteria made a toxin. Niedermeier
Finally call Wild and tell him they found the killer. “It was great,” he says.
Robert Sergeant, program manager for Georgia’s Department of Natural Resources, described the discovery as “outstanding news.” He is particularly excited that researchers have found a way to detect toxins in the lab. “It’s just significant for ecology, for us to have a better understanding of this process and perhaps to be able to control it,” he said. He noted that while the death of the eagle is alarming, these are signs of a much bigger problem. “Whenever we see illness or species death at the top of the food chain, it’s a red flag for the potential health of the environment,” he says.
After finding the poison, the research team stepped up the pace. They isolated the bromide-containing compound and confirmed that it was present in dead birds that showed wounds. They saw the Hydrilla plant themselves and discovered that it was able to enrich bromide from the environment, making it more readily available to cyanobacteria. “The concentration of bromide in plants is much higher in water or in plant sediments,” says Niedermayer. “It’s kind of interesting, but we don’t know why the tree does it.”
But in the mystery of this murder, identifying the culprit is not the end of the story. The team still has a lot of questions. Did the cyanobacteria attack with the hydraulic or was it already in the water? Does bromide occur naturally, or could it come from man-made sources like coal-fired power plants and flame retardants? Hydrilla is a constant insect that people tried to use herbicides like dicot dibromide to kill each other; Could the herbicide that made this ingredient be the source of the ingredients? Wild and Niedermeyer think it’s possible.
They are very concerned about whether these neurotoxins can affect people who eat infected birds. “It could be a real problem, but we don’t know it yet,” Niedermeyer said. Not every aquatic lake has an AVM outbreak, but there are many weeds Herbal treatment, And they could potentially become toxic in the future. Wild hopes that with more observations, scientists can move forward before possible outbreaks and prevent it from spreading further.
The sergeant added that residents could also play a role in efforts to control the AVM outbreak by not throwing aquarium plants into the waterway. Boaters can remove aquatic plants from their crew and halls, and if people see strange behavior with aquatic birds or birds of prey, they can report these scenes to their state’s wildlife agency.
Managing the outbreaks that have already occurred proves stingy. Hydrilla is a hardy plant. The Army Corps of Engineers The weeds have been fortunate enough to use grass-eating carp to feed back, but even after being pruned by the fish, it will return from burial in the lake silt. Although it grows slowly, Itocathnos hydricolla Just as difficult to get rid of. “They just survived. You can’t kill them, “said Niedermayer. He remembers in his lab the culture of some food that was forgotten and not properly cared for.” We thought, ‘Well, it’s dead,’ he says. “But no. If you add a little bit of fresh medium, it starts to grow again.
Niedermeyer says that now that they know what they are looking for, scientists have a better chance of finally stopping the killer once and for all. “The problem we are now aware of is that we can screen for cyanobacteria. We can monitor toxins. We can start reservoir sampling for bromide, “he said.” Now that we know what we’re looking for, we can find a solution. “
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