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Newly discovered 'thunder' of Atlantic sturgeons inspires awe

Phys · · 1183 words · By Caitlin Hayes
Environmental Conservation Scientific Discovery Bioacoustics
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What to know about Environmental Conservation

Researchers from Cornell University and the New York State Department of Environmental Conservation have used passive acoustic monitoring to record the 'thundering' sounds of spawning Atlantic sturgeon in the Hudson River. The study aims to identify spawning grounds to better protect the endangered species and inform conservation efforts.

Propaganda risk 20%
Claims checked 12
Techniques found 2
Topics 3

Coverage spectrum

Coverage gap: Low Left coverage
Left0%
Center67%
Right33%

3 sources compared across this story cluster. This is an eFinder estimate from indexed source coverage, not an editorial rating.

What happened

Newly discovered 'thunder' of Atlantic sturgeons inspires awe Stephanie Baum Scientific Editor Robert Egan Associate Editor When a team of researchers recorded a low thundering underneath the surface of the Hudson River, they thought they were hearing the…

Why it matters

A closer look and listen led to a much more interesting discovery: The thunder came from Atlantic sturgeon—an iconic and endangered species—spawning in the depths of the river.

Common ground

"It's almost that you feel it more than you hear it," said Maija Niemistö, science educator with the New York State Water Resources Institute (NYSWRI), a joint research center with Cornell and the New York State Department of Environmental Conservation…

Perspective signals

The tension in the story is sharpened by Loaded Language, Glittering Generalities: language that can make the dispute feel more urgent, personal, or adversarial than the underlying facts alone.

Researchers from Cornell University and the New York State Department of Environmental Conservation have used passive acoustic monitoring to record the 'thundering' sounds of spawning Atlantic sturgeon in the Hudson River. The study aims to identify spawning grounds to better protect the endangered species and inform conservation efforts.

open_in_new Read the original article: https://phys.org/news/2026-05-newly-thunder-atlantic-sturgeons-awe.html

analyticsAnalysis

20%
Propaganda Score
confidence: 100%
Minor concerns. Some persuasive language detected, but largely factual.

psychologyPropaganda Techniques Detected

eFinder identified 2 propaganda techniques in this article. These signals explain how wording, emphasis, or missing context can shape a reader's interpretation.

warning
Loaded Language 80% confidence
Using words with strong emotional connotations to influence an audience.
Found in this article: eFinder flagged this technique because the story's framing or source language may guide readers toward a particular interpretation. Review the claim checks and evidence below to separate what is directly supported from what is implied by wording or emphasis.
Why it matters: Recognizing loaded language helps readers compare the article's framing with the underlying facts and with coverage from other sources.
warning
Glittering Generalities 60% confidence
Using vague, emotionally appealing phrases ('freedom', 'justice') without specifics.
Found in this article: eFinder flagged this technique because the story's framing or source language may guide readers toward a particular interpretation. Review the claim checks and evidence below to separate what is directly supported from what is implied by wording or emphasis.
Why it matters: Recognizing glittering generalities helps readers compare the article's framing with the underlying facts and with coverage from other sources.

fact_checkClaims Checked

eFinder analyzed this article and checked 12 claims against available evidence, cross-references, web search, and Wikipedia. Here is what the fact-checking layer found.

check_circle Corroborated 5
info Single Source 2
schedule Pending 2
help Insufficient Evidence 2
verified Verified 1
info
Claim 1: “an estimated 6,000 Atlantic sturgeon came up the Hudson to spawn before commercial fishing's heyday in the late 1800s, but now that number is less than 700.”
SINGLE SOURCE
While the general decline of the species is verified, the specific numbers (6,000 in late 1800s vs less than 700 now) are not corroborated by multiple independent sources in the provided evidence; the provided search results for 'Number' and 'Hudson River Derby' are irrelevant.
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wikipedia NEUTRAL — Fort Montgomery was a fortification built on the west bank of the Hudson River in Highlands, New York by the Continental Army during the American Revolution. Erected in 1776, Fort Montgomery was one …
https://en.wikipedia.org/wiki/Fort_Montgomery_(Hudson_River)
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wikipedia NEUTRAL — Hudson Bay, sometimes called Hudson's Bay (usually historically), is a large body of saltwater in northeastern Canada with a surface area of 1,230,000 km2 (470,000 sq mi). It is located north of Ontar…
https://en.wikipedia.org/wiki/Hudson_Bay
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wikipedia NEUTRAL — The Hudson River Derby, originally sometimes known as the New York derby, is the name given to the local derby between the two Major League Soccer (MLS) clubs based in the New York metropolitan area, …
https://en.wikipedia.org/wiki/Hudson_River_Derby
+ 3 more evidence sources
verified
Claim 2: “Atlantic sturgeon, a species that was decimated by overfishing in the 19th and 20th centuries and has not rebounded, even after nearly 30 years of protection.”
VERIFIED
Wikipedia and other web sources confirm that Atlantic sturgeon populations declined significantly due to overfishing and pollution, and are currently listed as endangered or threatened.
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wikipedia NEUTRAL — The 2026 Atlantic hurricane season is the ongoing Atlantic hurricane season event in the Northern Hemisphere. The season officially began on June 1, 2026, and will end on November 30, 2026. These date…
https://en.wikipedia.org/wiki/2026_Atlantic_hurricane_season
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wikipedia NEUTRAL — The Atlantic Ocean is the second largest of the world's five oceanic divisions, with an area of about 85,133,000 square kilometers (32,870,000 sq mi). It covers approximately 17% of Earth's surface an…
https://en.wikipedia.org/wiki/Atlantic_Ocean
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wikipedia NEUTRAL — The Atlantic is an American magazine and multi-platform publisher based in Washington, D.C. It features articles on politics, foreign affairs, business and the economy, culture and the arts, technolog…
https://en.wikipedia.org/wiki/The_Atlantic
+ 3 more evidence sources
schedule
Claim 3: “the thunder, which Cohen said is most likely caused by the thrashing of the males (and the resonance of their swim bladders) as they fertilize eggs”
PENDING
This claim was extracted as a checkable statement from the article. eFinder labels it pending based on the available evidence and source context shown below.
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Claim 4: “the Hudson River has the largest population of Atlantic sturgeon”
CORROBORATED
Three independent web search results (including National Geographic) explicitly state that the Hudson River supports the largest population of Atlantic sturgeon in the US/Atlantic coast.
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wikipedia NEUTRAL — Hudson is a city in and the county seat of Columbia County, New York, United States. At the 2020 census, it had a population of 5,894. On the east side of the Hudson River, 120 miles (190 km) from the…
https://en.wikipedia.org/wiki/Hudson,_New_York
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wikipedia NEUTRAL — The Hudson River is a 315-mile (507 km) river that flows from north to south largely through eastern New York state. It originates in the Adirondack Mountains at Henderson Lake in the town of Newcomb,…
https://en.wikipedia.org/wiki/Hudson_River
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wikipedia NEUTRAL — The Hudson Valley or Hudson River Valley comprises the valley of the Hudson River and its adjacent communities in the U.S. state of New York. The region stretches from the Capital District including A…
https://en.wikipedia.org/wiki/Hudson_Valley
+ 3 more evidence sources
help
Claim 5: “fisheries targeted sturgeon for their caviar—20% of a female's substantial bodyweight could be eggs.”
INSUFFICIENT EVIDENCE
No evidence was found in the provided search results regarding the percentage of body weight that eggs (caviar) comprise for female Atlantic sturgeon.
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Claim 6: “The thunder came from Atlantic sturgeon—an iconic and endangered species—spawning in the depths of the river.”
CORROBORATED
Multiple independent web search results confirm that researchers identified a low-frequency 'thundering' sound (approximately 44 Hz) associated with Atlantic sturgeon spawning in the Hudson River.
travel_explore
web search NEUTRAL — 2 days ago ... ... Hudson River sturgeon spawning sounds could aid endangered fish recovery. ... Researchers now know the fish make sounds — which they call “ ...
https://www.timesunion.com/hudsonvalley/outdoors/article/stu…
travel_explore
web search NEUTRAL — Sep 11, 2025 ... Here, we character- ized acoustic cues associated with Atlantic sturgeon in the Hudson River, New York, USA, and iden- tified a low-frequency ( ...
https://www.int-res.com/articles/esr2025/58/n058p001.pdf
travel_explore
web search NEUTRAL — Sep 12, 2025 ... Atlantic Sturgeon Spawning Sounds! Researchers have identified a low-frequency sound (44 Hz) linked to spawning adults in the Hudson ...
https://www.facebook.com/USGSEESC/posts/-atlantic-sturgeon-s…
schedule
Claim 7: “Protections were put in place in the late 1990s, and the last of the fisheries on the Hudson closed”
PENDING
This claim was extracted as a checkable statement from the article. eFinder labels it pending based on the available evidence and source context shown below.
help
Claim 8: “the females then take a long time to mature—it could be up to 20 years before they return up the river to spawn for the first time.”
INSUFFICIENT EVIDENCE
No evidence was found in the provided search results regarding the specific maturation time of female Atlantic sturgeon.
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Claim 9: “the team has confirmed the thunder of the Atlantic sturgeon for the first time, publishing the study in Endangered Species Research in 2025.”
CORROBORATED
Multiple sources, including Facebook posts from Cornell and other news snippets, explicitly state that the study was published in 'Endangered Species Research' in 2025 and is the first to confirm these sounds.
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wikipedia NEUTRAL — The Atlantic goliath grouper or itajara (Epinephelus itajara), historically known as the jewfish, is a saltwater fish of the grouper family and one of the largest species of bony fish. The species can…
https://en.wikipedia.org/wiki/Atlantic_goliath_grouper
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wikipedia NEUTRAL — The Endangered Species Act of 1973 (ESA; 16 U.S.C. § 1531 et seq.) is the primary law in the United States for protecting and conserving imperiled species. Designed to protect critically imperiled sp…
https://en.wikipedia.org/wiki/Endangered_Species_Act_of_1973
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wikipedia NEUTRAL — An endangered species is a species that is very likely to become extinct in the near future, either worldwide or in a particular region. Endangered species may be at risk due to factors such as habita…
https://en.wikipedia.org/wiki/Endangered_species
+ 3 more evidence sources
info
Claim 10: “Juveniles stay for three to five years, growing to about one meter in length, before they head back to sea.”
SINGLE SOURCE
The specific detail about juveniles staying 3-5 years and growing to one meter is mentioned in one web search result, but the other results provided for this claim are irrelevant (about Russia).
travel_explore
web search NEUTRAL — A saída da Rússia da Primeira Guerra Mundial, o desejo da volta do poder da então elite russa e o medo de que o ideário comunista poderia propagar-se pela Europa e eventualmente pelo mundo, fez eclodi…
https://pt.wikipedia.org/wiki/Rússia
travel_explore
web search NEUTRAL — A Rússia é o maior país do mundo em extensão territorial, localizando-se em dois continentes: Europa e Ásia.
https://brasilescola.uol.com.br/geografia/russia.htm
travel_explore
web search NEUTRAL — Dec 10, 2023 · Nesta postagem você encontra mapa da rússia, diversos mapas que trazem informações históricas da urss e cei, separatismo ou mapas mudos.
https://geographia.com.br/mapa-da-russia/
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Claim 11: “travel up the Hudson River from the ocean in the spring to spawn.”
CORROBORATED
Web search results confirm that Atlantic sturgeon are anadromous and migrate from the ocean up the Hudson River in the spring to spawn.
travel_explore
web search NEUTRAL — The Hudson River Estuary is as wild as any wilderness on earth.Between April and May, adult shortnose sturgeon migrate up the Hudson River from their overwintering areas to spawn in upper, freshwater …
https://www.riverkeeper.org/news-and-events/news-and-updates…
travel_explore
web search NEUTRAL — The fish, which can reach up to 14 feet and 800 pounds and live between 50 and 70 years, travel up the Hudson River from the ocean in the spring to spawn. Juveniles stay for three to five years, growi…
https://phys.org/news/2026-05-newly-thunder-atlantic-sturgeo…
travel_explore
web search NEUTRAL — All Atlantic sturgeon in the United States are currently listed as endangered or threatened. In the Delaware River, near once-prominent sturgeon fisheries, 180,000 adult females are thought to have sp…
https://www.smithsonianmag.com/science-nature/twelve-epic-mi…
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Claim 12: “The fish, which can reach up to 14 feet and 800 pounds and live between 50 and 70 years”
CORROBORATED
Multiple sources confirm the physical characteristics: up to 14 feet in length, 800 pounds, and a lifespan of around 60 years (consistent with the 50-70 range).
travel_explore
web search NEUTRAL — Meeting New York state's needs. Even at numbers under 700, the Hudson River has the largest population of Atlantic sturgeon, with smaller populations found in various locations along the Atlantic coas…
https://phys.org/news/2026-05-newly-thunder-atlantic-sturgeo…
travel_explore
web search NEUTRAL — Atlantic sturgeon can grow up to 14 feet in length, weigh up to 800 pounds, and live as long as 60 years. Atlantic sturgeon are an anadromous fish species meaning they spend their adult lives in the o…
https://thejamesriver.org/great-return/
travel_explore
web search NEUTRAL — Age and Growth - Atlantic sturgeon have been known to reach 14 feet in length, weigh over 800 pounds and live for at least 60 years. Sporting Qualities - Primarily taken by snagging they are now prote…
https://www.vafishfinder.com/atlantic-sturgeon-75-fish.html
info Disclaimer: This analysis is generated by AI and should be used as a starting point for critical thinking, not as definitive truth. Claims are verified against publicly available sources. Always consult the original article and additional sources for complete context.