Scientists take bold new approach to curb growing underwater threat: 'It starts with a scientist being ignored'
Scientists have found a delicious solution to an invasive species problem: eating long-spined sea urchins could save Tasmania's kelp forests, Cosmos Magazine reported.
Rising ocean temperatures are pushing these spiny creatures southward from New South Wales to Tasmania's rocky coast. Their population has exploded from just a few individuals to around 18 million in recent years, creating what researchers call an ecological crisis.
You might wonder why this matters to you. When sea urchins devour kelp forests, they create barren areas that destroy habitat for hundreds of other species, including commercially important fish. This affects food supplies, local economies, and recreational fishing that many families enjoy.
"It's like most disaster movies. It starts with a scientist being ignored," said the Institute for Marine and Antarctic Studies' Scott Ling, who first warned about the threat to Tasmania's kelp beds, per Cosmos Magazine.
The solution? Eating more sea urchin roe, a delicacy that drives a billion-dollar global market. By encouraging commercial fishing of these invasive creatures, you can help protect coastal ecosystems while enjoying what many consider a gourmet treat that tastes salty and fishy and looks like orange-yellow mandarin slices.
University of Tasmania marine biologist Katie Cresswell's study recommends targeted "overfishing" of the urchins, particularly in areas valuable to the abalone industry. "This study sets our Tasmanian story of this 'edible pest' in an international context," she said, per Cosmos Magazine.
Her research shows this approach is working — commercial fisheries have removed about 1.2 million urchins yearly from Tasmanian reefs for the past six years.
"We used modelling to estimate how much worse the urchin problem would be without commercial fishing — and the answer is at least twice as bad," Cresswell said of the study, published in Nature Sustainability.
"This will impact ecosystems and communities alike, so it's increasingly important to use modelling to guide flexible management decisions that balance sustainability with economic needs," Cresswell said about the broader effects of climate-driven species migration.
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Newsweek
a day ago
- Newsweek
'Doomsday Fish' Discoveries Spark Fears Of Impending Natural Disaster
Based on facts, either observed and verified firsthand by the reporter, or reported and verified from knowledgeable sources. Newsweek AI is in beta. Translations may contain inaccuracies—please refer to the original content. The recent discoveries of two rare deep-sea dwelling oarfish have sparked fears of a looming natural disaster. The fish were discovered in separate incidents in India and Tasmania within the last week. In the first incident, fishermen in Tamil Nadu, India, pulled a 30-foot oarfish from the water. The massive fish required seven men to hold it for the video. Stock image of an oarfish. Stock image of an oarfish. Photo by Eric Broder Van Dyke / Getty Images On June 2, a dogwalker named Sybil Robertson encountered a dead nine-foot specimen washed up on a Tasmanian beach and posted photos to a citizen scientist group on social media. "I just knew it was something unusual and weird," Sybil Robertson told The Daily Mail, describing the oarfish's markings as "fabulous". A 'Doomsday' Fish? Oarfish are sometimes known as "doomsday fish"—a reputation that stems from interpretations of the oarfish in Japanese folklore. As per Forbes, at least a dozen oarfish washed up onto Japan's coastline in the year before the 2011 Fukushima earthquake and tsunami, which brought the deep-sea creatures back to the forefront of the imagination. Doomsday fish have been found in Tamil Nadu, India. — ಸನಾತನ (@sanatan_kannada) May 31, 2025 Ben Fraber, an ichthyologist and the marine vertebrate collection manager at Scripps Institution of Oceanography in San Diego, told Newsweek in a phone interview that the mythology was "compelling enough" to capture the public's attention. "You do see when there's a big change in pressure on land, birds and other animals will move out of the way," Fraber said. However, researchers in Japan took a closer look at the phenomenon, bringing in data points that included beached whales and anglerfish, as well as known natural disasters and earthquakes dating back to the early 1900s. "They found almost no correlation whatsoever," Fraber noted. "It's really interesting to think about, but it doesn't seem to have a statistical link that we can find." A Rare Find Fraber has seen oarfish in person—last year, two oarfish were discovered by employees of Scripps Institution of Oceanography who were out snorkeling for the day. The employees notified lifeguards, and the institute was able to work with the National Oceanic and Atmospheric Administration (NOAA) to bring the oarfish in. Fraber preserved the fish in formaldehyde and alcohol, and members of the public can see one of them currently in the Birch Aquarium at Scripps in San Diego. Fraber said oarfish sightings are relatively rare in Southern California—the two his team encountered were only the 21st and 22nd discovered since 1901. "Having the samples in person instead of just a video allows us to look at their stomach contents, look at their genetics, we'll get nitrogen and carbon isotopes that can tell us where they are in the open ocean food web," Fraber said. "And we preserve them so people in the future can continue asking questions from them." According to Fraber, oarfish are filter feeders whose jaws are modified so they can push them forward and vacuum water in, creating suction that traps food similar to bass or large whales. Oarfish primarily eat krill and small fish, which may be confused by the oarfish's silvery body that refracts light. "You're a little school of fish, you're swimming around, you see this thing, but it kind of just looks like a big jelly or gelatinous organism, something you're not too concerned about because a jellyfish is not going to try to eat you," Fraber said. "So you swim up and it's actually not that. It's this big fish that has a highly modified mouth that can protrude and create a kind of vacuum cleaner. It slurps up all these fish." A "Wow" Reaction Having handled and seen oarfish in person, Fraber understands the hype. "I think part of it is the size," he said. "Part of it is the look, they have this beautiful bright red fin, big silvery body, large eyes. "And part of it is the scale. We're not used to seeing animals that big—with the exception of sharks, dolphins and whales—so it elicits this kind of 'wow' reaction." Fraber noted that the mythology of sea serpents is probably related to misidentified oarfish long ago. "It's like actually getting to see this semi-mythological thing in person, it's not a myth, it's a real animal that's living with us on our planet, I think that makes it really amazing," he said. "Even though I've worked on fish for almost 20 years, and have handled many oarfish specimens, these two last year were the first time I actually got to see them fresh and unpreserved in person, and it was pretty magical."
Yahoo
2 days ago
- Yahoo
Scientists take bold new approach to curb growing underwater threat: 'It starts with a scientist being ignored'
Scientists have found a delicious solution to an invasive species problem: eating long-spined sea urchins could save Tasmania's kelp forests, Cosmos Magazine reported. Rising ocean temperatures are pushing these spiny creatures southward from New South Wales to Tasmania's rocky coast. Their population has exploded from just a few individuals to around 18 million in recent years, creating what researchers call an ecological crisis. You might wonder why this matters to you. When sea urchins devour kelp forests, they create barren areas that destroy habitat for hundreds of other species, including commercially important fish. This affects food supplies, local economies, and recreational fishing that many families enjoy. "It's like most disaster movies. It starts with a scientist being ignored," said the Institute for Marine and Antarctic Studies' Scott Ling, who first warned about the threat to Tasmania's kelp beds, per Cosmos Magazine. The solution? Eating more sea urchin roe, a delicacy that drives a billion-dollar global market. By encouraging commercial fishing of these invasive creatures, you can help protect coastal ecosystems while enjoying what many consider a gourmet treat that tastes salty and fishy and looks like orange-yellow mandarin slices. University of Tasmania marine biologist Katie Cresswell's study recommends targeted "overfishing" of the urchins, particularly in areas valuable to the abalone industry. "This study sets our Tasmanian story of this 'edible pest' in an international context," she said, per Cosmos Magazine. Her research shows this approach is working — commercial fisheries have removed about 1.2 million urchins yearly from Tasmanian reefs for the past six years. "We used modelling to estimate how much worse the urchin problem would be without commercial fishing — and the answer is at least twice as bad," Cresswell said of the study, published in Nature Sustainability. "This will impact ecosystems and communities alike, so it's increasingly important to use modelling to guide flexible management decisions that balance sustainability with economic needs," Cresswell said about the broader effects of climate-driven species migration. Should the government be paying people to hunt invasive species? Definitely Depends on the animal No way Just let people do it for free Click your choice to see results and speak your mind. Join our free newsletter for easy tips to save more and waste less, and don't miss this cool list of easy ways to help yourself while helping the planet.


New York Post
3 days ago
- New York Post
‘Very rare' oarfish washes up on beach, sparking doomsday fears: ‘We're cooked, aren't we?'
Is there about to be an apocalypse? A rare 'doomsday' oarfish has washed ashore yet again — this time in Australia, sparking fears that a catastrophe could be around the corner. 'I just knew it was something unusual and weird,' Sybil Robertson told the Guardian of the 'fantastic' flotsam, which she discovered while walking her dog on Ocean Beach in Tasmania on Monday. Advertisement The Strahan resident became curious after seeing a streak of silver on the beach, and, when she approached, she realized that it was a massive sea creature. 3 An oarfish sighting is 'a very rare occasion when one washes ashore,' said Neville Barrett, a fish biologist and associate professor with the University of Tasmania's Institute for Marine and Antarctic Studies. A beachgoer found the one above earlier this week in Tasmania. Sybil Robertson 'I could see it was a long fish, but I had no idea what kind of fish,' Robertson recounted to the Australian Broadcasting Corporation. 'As I got closer, I could see the beautiful coloring around its head, and the markings on it were fabulous.' Advertisement Aside from a few injuries, the shimmery specimen appeared to be in good condition. The Aussie posted pics of the serpentine sea creature to the 'Citizen Scientists of Tasmania' Facebook page, where marine experts confirmed that the ethereal-looking animal was an oarfish. 3 Robertson found the critter (pictured) while walking her dog on Ocean Beach in Tasmania. Sybil Robertson This particular specimen appeared to be around nine feet long, much smaller than their maximum size of 56 feet — the longest of any bony fish. Advertisement Scientists said the find was particularly special since the creepy critters generally reside at depths of up to around 1,650 feet deep. 'It's a very rare occasion when one washes ashore,' said Neville Barrett, a fish biologist and associate professor with the University of Tasmania's Institute for Marine and Antarctic Studies. 'There's not many reportings at all.' He said that very few people have seen the denizens of the deep alive. 3 This giant oarfish was found washed up on the California coast in 2013. Catalina Island Marine Institute Advertisement In the unlikely event that the elusive critters do surface, they are likely sick or close to death, according to scientists 'Occasionally, when they are sick, apparently, they swim up to the surface for unknown reasons,' Barrett said. However, superstitious folks have viewed the oarfish as a sign of doom. According to Japanese mythology, the serpentine plankton-eaters will purposely rise to the surface and beach themselves whenever they sense that trouble's on the horizon. In fact, doomsday fears ramped up during Japan's deadly 2011 Fukushima earthquake and tsunami when dozens of the pelagic beasts washed ashore in the two years preceding the catastrophe. Doomsdayers on Reddit felt this latest sighting was another sign of the apocalypse, with one writing, 'We're cooked, aren't we?' 'Tasmania should evacuate. Or batten down the hatches,' declared another. Advertisement A third warned, 'The oarfish is seen as a horrible omen. Like a black cat breaking a mirrored salt shaker under a ladder bad.' However, Barrett said he doesn't 'put much credence' in this theory, claiming that a beached oarfish is just a 'random event' — rather than a bad omen. 'There's no real evidence there's any linkage,' he said. 'I can imagine a significant earthquake could disturb mid-water fish and stun them and lead to some coming up, but that's at the same time [as the disaster].'