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Scientists baffled as eel population declines

Scientists baffled as eel population declines

A recent study of eel populations in the United States has scientists baffled, as the population appears to be in decline.

The study, conducted by the Monterrey Bay Aquarium Research Institute, looked at eel populations in the Sacramento-San Joaquin Delta, as well as in the Chesapeake Bay. The researchers found that while the eel population in the Delta was stable, the Chesapeake Bay population had decreased by more than 90%.

"We're not sure why this is happening," said one of the researchers involved in the study. "Eels are an important part of both ecosystems, and their decline could have serious consequences."

Theories abound as to what might be causing the decline. Some experts point to changes in water temperature or quality, while others suggest that overfishing may be a factor.

Whatever the cause, it's clear that something needs to be done to protect these important creatures. The fate of the eel could have far-reaching consequences for our oceans and waterways.

Anglers warned not to eat eels

In a stark warning to anglers, the Department of Environment, Food and Rural Affairs (DEFRA) has urged people not to eat European eels after high levels of the potentially lethal chemical thallium were found in the creatures.

Thallium is a heavy metal that can cause nerve damage, hair loss and organ failure. It is particularly dangerous to children and pregnant women.

The DEFRA press release said: "We are advising people not to eat eels as there may be high levels of thallium in some of them. Thallium can cause serious health problems, including death. Anyone who has recently eaten an eel should contact their doctor."

Anglers have been warned not to eat any eels they catch, regardless of where they are from. This includes British, French and Spanish eels.

DEFRA expects to publish test results in the next few weeks which will give a more detailed breakdown of the levels of thallium in different parts of Europe.

Eels becoming endangered species

Eels have been around for a very long time. They were first referred to in ancient Greece, and then again in the Bible. But now, these slippery creatures are in trouble.

The major problem for eels is overfishing. They are often caught by accident when fishermen are targeting other fish, and their popularity as a food means that they are often hunted for their meat. As a result, the eel population has plummeted, and they are now considered an endangered species.

Some steps are being taken to try to protect eels. In Europe, for example, there is a ban on eel fishing during the breeding season. This helps ensure that enough eels survive to breed and replenish the population.

But more needs to be done if the eel is to be saved from extinction. We need to find ways to reduce the amount of fishing that takes place, and make sure that this beloved creature isn't lost forever.

Researchers find antibiotic-resistant bacteria in eels

A new study has found antibiotic-resistant bacteria in European eels. The discovery is worrying, as the eels are a popular food choice and the use of antibiotics in farming could lead to more antibiotic-resistant bacteria.

The study, which was published in the journal Nature Microbiology, looked at 138 samples of eel from six different countries. The researchers found that 13 percent of the samples contained bacteria that were resistant to at least one type of antibiotic.

The highest levels of antibiotic resistance were found in Poland and Spain, where 24 and 22 percent of the samples contained resistant bacteria, respectively. Interestingly, no resistance was found in eels from France or Norway.

The team behind the study believe that the antibiotic resistance is likely due to the use of antibiotics in farming. "Antibiotic use in aquaculture is known to drive antibiotic resistance in bacteria," said Dr. James Collins, senior author of the study. "This is the first report to show this problem in European eels."

The discovery is concerning, as the use of antibiotics in farming can lead to more antibiotic-resistant bacteria. These bacteria can then spread to humans and cause serious infections.

It is therefore important that steps are taken to reduce the use of antibiotics in farming. This could involve using alternative methods for controlling diseases in animals, such as vaccination or good hygiene practices.

Eel DNA could hold key to human cancer treatment

According to a new study published in the journal Nature, scientists have successfully sequenced the DNA of electric eels and found that they share an unusual number of similarities with human cancers. This could lead to new and more effective treatments for cancer in humans.

Electric eels are a species of fish found in North and South America. They get their name from their ability to generate an electric current, which they use for hunting and defense. For many years, scientists have been interested in the electric eel's DNA for its potential to help us understand human diseases.

Now, a team of researchers from around the world has finally sequenced the electric eel's genome. What they found was surprising – the electric eel shares over 20% of its genetic sequencing with human cancers! This suggests that the electric eel might be a good model for studying cancer and developing new treatments.

The team further analyzed the genes that are shared between electric eels and human cancers. They discovered that these genes are involved in important processes like cell growth and survival. This could lead to new drugs or treatments that target these genes specifically.

So far, the team has only tested these ideas in cells in a lab dish, but they are now planning to test them in live animals. If they are successful, then this could lead to ground-breaking new treatments for cancer!

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