The poisonous pufferfish that has spread widely through the eastern Mediterranean could have an unexpected second life. Researchers in Greece are studying whether the invasive pufferfish known as lagokefalos can be turned from a problem for fisheries into a source of collagen, omega-3 fatty acids and other potentially valuable compounds.
The species, Lagocephalus sceleratus, is one of the invasive fish that has established itself in Greek waters after entering the Mediterranean through the Suez Canal. It is particularly problematic for fishermen because its powerful teeth can damage fishing gear, while its toxicity prevents it from being treated as an ordinary food fish.
Now, scientists are examining whether the fish itself could become part of the solution.
Research led at the National Technical University of Athens (NTUA) by Professor Magdalini Krokida has investigated ways of recovering useful compounds from invasive marine species. The work forms part of the ExplIAS project, which explores the sustainable management and potential commercial utilization of alien species in the Mediterranean.
From unwanted catch to useful raw material
The idea is straightforward: instead of treating an invasive fish as waste after it is removed from the sea, researchers want to determine whether its biological components can be recovered and used elsewhere.
Studies conducted through NTUA have examined Lagocephalus sceleratus for compounds including collagen, omega-3 fatty acids and tetrodotoxin, or TTX.
Research deposited in the university’s institutional repository has also examined the development of experimental cosmetic formulations using compounds obtained from the fish. The work investigated material from different parts of the animal, including its flesh, skin, bones and internal organs.
The approach is part of a broader circular-bioeconomy concept: a species that creates environmental and economic problems could potentially become a source of raw materials with commercial value.
That does not mean that products made from the fish are already on the market. The research is aimed at determining whether such applications are technically and commercially feasible.
Why the pufferfish is so toxic
The most unusual component being studied is tetrodotoxin.
TTX is a powerful neurotoxin that can interfere with the normal function of nerves and muscles. It is responsible for the extreme toxicity of several pufferfish species, including Lagocephalus sceleratus.
Scientific studies have confirmed the presence of tetrodotoxin in Greek populations of the species, with particularly high concentrations reported in internal organs. This is also why the fish cannot simply be introduced into the conventional seafood market.
For researchers, however, the toxin presents a different question: can a dangerous natural compound be safely isolated and processed for controlled applications?
Work associated with NTUA has examined techniques for extracting, identifying and encapsulating tetrodotoxin, including research into its possible incorporation into high-value products.
Is this really “pufferfish Botox”?
The ExplIAS project describes the investigation of toxins and collagen for cosmetic applications, including anti-aging formulations that could potentially serve as alternatives to Botox.
But researchers have not created a commercially available Botox treatment made from pufferfish.
The research is exploring whether compounds obtained from the invasive fish could have cosmetic applications. Any product intended for medical or cosmetic use would still have to meet stringent safety, efficacy and regulatory requirements.
In other words, “pufferfish Botox” is a useful shorthand for an intriguing research direction, but it should not be confused with an existing treatment.
The fish causing problems in Greek waters
The scientific work takes place against a much larger environmental problem.
Lagocephalus sceleratus is a Lessepsian migrant, meaning it entered the Mediterranean from the Red Sea through the Suez Canal. It has since spread across parts of the eastern and central Mediterranean, including Greek waters.
The species is particularly troublesome for fisheries. Its strong teeth can destroy nets and other fishing equipment, while its feeding behavior can affect local marine ecosystems.
Its toxicity creates another problem: unlike many other invasive fish, it cannot simply be promoted as a new seafood species.
That leaves fishermen and authorities with a difficult question—how can populations be managed when the fish has little conventional commercial value?
Could an ecological problem become an economic opportunity?
The research in Greece points toward one possible answer: find value in what is currently discarded.
Collagen and omega-3 fatty acids are already valuable ingredients in food, health and cosmetic research. Tetrodotoxin, meanwhile, has attracted scientific interest because of its highly specific effects on nerve signaling.
If researchers can develop safe and economically viable methods for recovering such compounds, an invasive species could potentially become a source of raw materials rather than simply a cost to fisheries.
That is the broader goal behind the ExplIAS research: to investigate whether the management of invasive marine species can be combined with the recovery of compounds that have potential value in biotechnology, cosmetics and other fields.
For Greece, the approach offers an unusual possibility. A fish that arrived in the Mediterranean as an invasive species and has become a serious nuisance for fishermen could eventually be worth something for reasons that have nothing to do with eating it.
The research is still a long way from turning lagokefalos into a mainstream cosmetic ingredient. But it demonstrates how scientists are looking beyond simply removing an invasive species—and asking whether part of the problem can itself become part of the solution.
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