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Thomas Dahlgren

@mucofloris.bsky.social

Deep-sea biologist. Invertebrate taxonomist. Environmental impact from offshore wind farms. Swedish representative at CCAMLR science committee.

1,072 Followers  |  581 Following  |  56 Posts  |  Joined: 03.10.2023
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Posts by Thomas Dahlgren (@mucofloris.bsky.social)

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Busch: Oförutsägbarheten kan ge volatila elpriser Utvecklingen i Mellanöstern innebär ökad oförutsägbarhet på flera områden och har redan påverkat världsmarknaderna till viss del. Det uppgav energi- och näringsminister Ebba Busch (KD) vid en presskon...

När el- och bränslepriserna steg efter Rysslands invasion av Ukraina 2021 var det miljöpolitiken som var orsaken enligt Busch och kompani. Nu när samma sak händer pga USAs attack på Iran är det tydligen ”en orolig omvärld”… Byggde hela krossandet av Sveriges klimatarbete på en lögn?
omni.se/a/ln3agy

03.03.2026 08:00 — 👍 36    🔁 13    💬 3    📌 0
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DN Debatt. ”Dissa inte vetenskap bara för att ni ogillar protester” DN Debatt. Vetenskapsförfattaren Maths Nilsson varnar för lobbyism mot klimatmål i EU och Sverige

www.dn.se/debatt/dissa...

04.03.2026 02:12 — 👍 0    🔁 0    💬 0    📌 0
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LEDARE: Krigets virus sprider sig och en svensk statsminister svävar på målet Dala-Demokraten – en tidning för hela Dalarna sedan 1917

Krigets virus sprider sig och en svensk statsminister svävar på målet
www.dalademokraten.se/2026-03-03/k...

03.03.2026 08:13 — 👍 23    🔁 6    💬 1    📌 2

www.sverigesradio.se/artikel/ekol...

02.03.2026 09:05 — 👍 14    🔁 3    💬 0    📌 0
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Marine biologist on salaries, tears and the one thing everyone could do to save the planet From discovering a "garden of Eden" at the bottom of the ocean to facing the consequences of human selfishness, a marine biologist gives the Money blog an exclusive insight into the highs and lows of ...

Colleague Dr. Jon Copley answers some questions about #deepsea biology! news.sky.com/story/marine...

02.03.2026 16:23 — 👍 6    🔁 3    💬 0    📌 0
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'There are so many bones everywhere': The whale graveyards that transform the deep sea A photographer captured this extraordinary site where whales' bodies lie in the shallows, with troubling repercussions for the deep oceans.

"As whale populations continue to struggle, a decline in whale falls is reported to have reduced the biodiversity of deep sea ecosystems – and has likely contributed to the extinction of species before we ever knew of their existence." @kathla.bsky.social

www.bbc.com/future/artic...

01.03.2026 03:47 — 👍 46    🔁 23    💬 1    📌 1
It costs just $33/MWh to transform daytime solar into dispatchable solar

It costs just $33/MWh to transform daytime solar into dispatchable solar

Huge since true.

"It costs just $33/MWh to transform daytime solar into dispatchable solar"

And no, that doesn't yet account for that storied Dunkelflaute. Then again, the typical gas LCOE doesn't account for Putin's whims or other geopolitical vagaries.

28.02.2026 22:32 — 👍 212    🔁 62    💬 13    📌 2
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Chronic ocean heating fuels ‘staggering’ loss of marine life, study finds Fish levels fall by 7.2% with as little as 0.1C of warming per decade, northern hemisphere research shows

Rising ocean temps blamed for massive die-off of marine life. "Researchers examined the year-to-year change of 33,000 [fish] populations in the northern hemisphere.... They found the drop in biomass from chronic heating to be as high as 19.8% in a single year." www.theguardian.com/environment/...

01.03.2026 00:29 — 👍 2067    🔁 1240    💬 97    📌 103
Ny policy brief: Färre gråsälar inte lösningen för Östersjöns strömming - Stockholms universitet

www.su.se/enheter/stoc...

26.02.2026 12:10 — 👍 2    🔁 5    💬 0    📌 0
Metabarcoding and targeted barcoding can enhance Norwegian Continental Shelf macrofauna species inventories Metabarcoding of bulk community samples is a powerful tool to characterize marine softbottom macrofaunal communities, but high-quality taxonomic assignment is dependent on adequate sequence coverage i...

Proud to have contributed to this study now published in PeerJ w Jon Hestetun, @mucofloris.bsky.social and others, where we show how accuracy of #metabarcoding can be improved by selecting and sequencing marker genes (barcdoding) of taxa missing from taxonomic databases.

peerj.com/articles/208...

20.02.2026 10:45 — 👍 2    🔁 1    💬 0    📌 0
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Här fnyser Gunnar Strömmer åt frågorna om Palantir: ”Konspirationsteorier” Regeringen fortsätter ducka kritiken mot samarbetet med spionbolaget.

"Tekniken är etiskt neutral" - hur kan man, i denna tid, svara så här okunnigt? Den svenska regeringen är en säkerhetsrisk för sig själv. www.etc.se/inrikes/haer...

17.02.2026 07:48 — 👍 195    🔁 82    💬 16    📌 9
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Years ago I was obsessed with these Antarctic "tulips"-eventually learned they were TUNICATES, Molgula pedunculata #tunicateTuesday Such crazy lookin' things! www.researchgate.net/publication/...

17.02.2026 17:06 — 👍 130    🔁 22    💬 2    📌 2
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How 1.5 million km of undersea internet cables can double up as an earthquake and tsunami warning system Existing underwater fibre optic cables could help monitor tectonic movement on the ocean floor.

Existing underwater fibre optic cables could help monitor tectonic movement on the ocean floor.

16.02.2026 17:21 — 👍 25    🔁 6    💬 0    📌 0
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Dr. Marian Pettibone Discovered and Described New Forms of Oceanic Life In 1948, Dr. Marian Pettibone published a scientific paper naming two new marine segmented worm species. These were the first of 172 species that she would describe in her lifetime. A little over a de...

MORE on Dr. Marian Pettibone! Global polychaete expert! #Wormwednesday and International Day of Women & Girls in Science womenshistory.si.edu/blog/dr-mari...

11.02.2026 19:00 — 👍 21    🔁 6    💬 2    📌 0
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RETRACTED: Integrative phylogenomics positions sponges at the root of the animal tree Determining whether sponges or ctenophores root the animal tree has important implications for understanding early animal evolution. Here, we examined support for these competing hypotheses by constru...

This is a beautiful case of how real science happens & serious scientists work. Kudos to both set of authors: “This has been a humbling experience, but one that speaks to the self-correcting nature of the scientific endeavor.” www.science.org/doi/10.1126/...

06.02.2026 19:35 — 👍 112    🔁 50    💬 3    📌 2

Yes. That is the scandal in a nutshell.

06.02.2026 17:46 — 👍 0    🔁 0    💬 0    📌 0
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Kosterhavets nationalpark – en papperspark? - Deep Sea Reporter Deep Sea Reporter granskar bottentrålning i marina skyddade områden – del två.Som nationalpark omfattas Kosterhavet av Sveriges starkaste naturskydd. På pappret. I praktiken pågår omfattande bottentrå...

www.deepseareporter.com/sv/kosterhav...
Har du 11 min över idag så ägna dem åt denna film. Lågmäld men slagkraftig information om en marin jätteskandal.

06.02.2026 08:54 — 👍 5    🔁 4    💬 0    📌 1
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entering the sponge zone

05.02.2026 13:48 — 👍 317    🔁 60    💬 7    📌 6
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Visited the Natural History Museum London last week and honestly: collections like this are the backbone of everything we think we know about the ocean. Absolute treasure trove.

04.02.2026 14:17 — 👍 78    🔁 10    💬 6    📌 0
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Dragon in the deep. 🐉⁠

Dragonfish (family Stomiidae) are cunning predators. Although they are strong swimmers, they prefer to lie in wait and ambush unsuspecting fishes and crustaceans. This black dragonfish (Idiacanthus sp.) was spotted at 527 meters (1,729 feet) in Monterey Bay.

04.02.2026 20:00 — 👍 299    🔁 111    💬 4    📌 15
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Research Highlight: Deep-Sea Churro Finds its Evolutionary Home Churros, the delicious snacks covered with cinnamon sugar and served with hot chocolate, have a doppelganger in the deep sea. The deep-sea worm named after the deep-fried sticks of dough was recently ...

With all the madness going on, a one-holed worm thing with a no brain or any identifiable organs is quietly crawling somewhere on the ocean floor--and it is named after a churro. #xenoturbella_churro

scripps.ucsd.edu/news/researc...

01.02.2026 02:23 — 👍 295    🔁 84    💬 13    📌 20
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Rapport: Sverige sämre på vindkraft än grannländerna Havsvindkraften skulle lösa Sveriges behov av grön el – men utbyggnaden har tvärbromsat. Politiken reser för många hinder, enligt Nordiska rådet.

www.dn.se/sverige/rapp...

29.01.2026 00:18 — 👍 2    🔁 3    💬 0    📌 0
This line graph illustrates the percentage change in agency staff levels from the previous year for nine major U.S. federal scientific and health organizations between the fiscal years 2016 and 2025. The agencies tracked include the CDC, Department of Energy, EPA, FDA, NASA, NIH, NIST, NOAA, and NSF. For the majority of the timeline between 2016 and 2023, the agencies show relatively stable fluctuations, generally staying within a range of +5% to -5% change per year. However, there is a dramatic and uniform plummet starting in the 2024–25 period. Every agency depicted shows a sharp downward trajectory, with staffing losses ranging from approximately -15% to over -25%. The Environmental Protection Agency (EPA) shows the most significant decline, dropping to roughly -26%, while the National Institute of Standards and Technology (NIST) shows the least severe but still substantial drop at approximately -15%.

This line graph illustrates the percentage change in agency staff levels from the previous year for nine major U.S. federal scientific and health organizations between the fiscal years 2016 and 2025. The agencies tracked include the CDC, Department of Energy, EPA, FDA, NASA, NIH, NIST, NOAA, and NSF. For the majority of the timeline between 2016 and 2023, the agencies show relatively stable fluctuations, generally staying within a range of +5% to -5% change per year. However, there is a dramatic and uniform plummet starting in the 2024–25 period. Every agency depicted shows a sharp downward trajectory, with staffing losses ranging from approximately -15% to over -25%. The Environmental Protection Agency (EPA) shows the most significant decline, dropping to roughly -26%, while the National Institute of Standards and Technology (NIST) shows the least severe but still substantial drop at approximately -15%.

This is the most astonishing graph of what the Trump regime has done to US science. They have destroyed the federal science workforce across the board. The negative impacts on Americans will be felt for generations, and the US might never be the same again.

www.nature.com/immersive/d4...

20.01.2026 22:53 — 👍 14456    🔁 8320    💬 90    📌 765
Analysis of historical fishing reveals an unwelcome truth - Stockholms universitet

Great review of historical sustainable fishing in the Baltic and who is to blame (or not) for the current catastrophic state of Baltic fish stocks. @hsvedang.bsky.social

www.su.se/english/divi...

15.01.2026 11:53 — 👍 1    🔁 2    💬 0    📌 0
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Climate engineering would alter the oceans, reshaping marine life – our new study examines each method’s risks Some methods being tried to counter climate change shift the ocean’s biology or chemistry. Others would deflect solar radiation. All have consequences for marine life.

"It is possible that no climate intervention will ever be safe enough to implement on a large scale. But we believe that decision should be guided by evidence – not market pressure, fear or ideology."
— @tyler-rohr.bsky.social et al in @theconversation.com

▶️ theconversation.com/climate-engi...

14.01.2026 23:54 — 👍 14    🔁 10    💬 2    📌 2

The heat energy we added to the ocean LAST YEAR is the equivalent of:
- Detonating ten hydrogen bombs every minute
- operating over a hundred large power plants continuously for all of written human history
- Five times all the electricity human beings have ever used

14.01.2026 21:05 — 👍 224    🔁 157    💬 10    📌 12
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China is now the leading clean energy powerhouse with the West falling behind.

The transition is inevitable; the key question is where and how fast it happens.

I look forward to discussing this in Davos next week at the World Economic Forum, facilitating a live-streamed session on electrostates.

13.01.2026 07:43 — 👍 4450    🔁 1473    💬 303    📌 120

Bra att SMB lyfter djuphavsgruvbrytning. Den evidensbaserade forskningen på de tester som gjorts har visat på mindre negativa effekter än befarat. Myndigheten ISA har också infört effektivt skydd av 30% av Stilla Havets nodulområden - helt unikt i ett internationellt förvaltningsperspektiv.

11.01.2026 14:19 — 👍 0    🔁 0    💬 0    📌 0
Why I Left iNaturalist After almost 18 years, I left iNaturalist, the product and organization I helped create. I left because I don’t believe the current Leadership team is pointing the product in the right direction, and ...

Disheartening to learn that after 18 years, founder Ken-ichi Ueda has left iNaturalist, citing irreconcilable differences in the direction of the company.

kueda.net/blog/2026/01...

He has a Patreon while he figures out his next move: www.patreon.com/cw/kueda

07.01.2026 19:37 — 👍 67    🔁 44    💬 3    📌 2
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A Study Is Retracted, Renewing Concerns About the Weedkiller Roundup

“This is a seismic, long-awaited correction of the scientific record,” said Dr. Philip J. Landrigan… “It pulls the veil off decades of industry efforts to create a false narrative that glyphosate is safe…People have developed cancers, and people have died because of this scientific fraud.”

03.01.2026 02:11 — 👍 834    🔁 452    💬 7    📌 22