Advertisement · 728 × 90

Posts by Kjersti Sjøtun

Preview
Ålens lange reise og kampen mot de dødelige vannkraft­turbinene POPULÆRVITENSKAP: Når ålen vandrer ut av elvene om høsten, møter den en av sine største trusler: vannkraftturbinene. Nå viser ny forskning fra NORCE LFI at problemet kan løses.

Ål og vasskraftturbinar er ingen god kombinasjon, men heldigvis finst det ei løysing.

www.forskning.no/dyreverden-f...

2 days ago 0 0 0 0
Preview
Rapid genome modifications including chromosomal fusions and large-scale inversions are key features in Arctic codfish species - Genome Biology Background Genome evolvability involves activation of transposable elements (TEs) that result in novel genomic rearrangements, including translocations, deletions, duplications, as well as larger stru...

Finally is the paper where we present the unique genomic architectures of the Arctic codfishes out!! Nice work by @gadus-sivus.bsky.social and co-authors …
@biovitenskap.bsky.social
@unioslo-cees.bsky.social

link.springer.com/article/10.1...

4 weeks ago 36 15 1 2
Post image Post image Post image

A nice day for collecting sea food
in the intertidal. Sugar kelp (Saccharina latissima) and dulse (Palmaria palmata)

1 month ago 2 0 0 0
Graph of CO2 concentrations for the past 800,000 years from the Antarctic ice cores, showing current CO2 levels of 430 ppm are far, far higher than any level over this period, which never exceeded 300 ppm. Also shown is the emergence of Homo sapiens around 200,000 years ago -- so CO2 levels are higher than we've ever experienced.

Graph of CO2 concentrations for the past 800,000 years from the Antarctic ice cores, showing current CO2 levels of 430 ppm are far, far higher than any level over this period, which never exceeded 300 ppm. Also shown is the emergence of Homo sapiens around 200,000 years ago -- so CO2 levels are higher than we've ever experienced.

You are here.
We've breached 430 ppm CO2.
#climatechange

11 months ago 811 364 39 31
Video

100 years of January sea surface temperature anomalies. Note the long-term warming and patterns of climate variability (e.g., El Niño/La Niña).

Data from NOAA ERSSTv5 at psl.noaa.gov/data/gridded...

2 months ago 151 69 4 3
Post image

Happy Darwin day!

2 months ago 0 0 0 0
Post image

Today 6 February is the sami national day. Lihkku beivviin!

2 months ago 0 0 0 0
Preview
Demonstrerte i 29 minusgrader

Heia Minneapolis!

www.nrk.no/urix/demonst...

2 months ago 0 0 0 0
Advertisement
Preview
Donald Trump talar i Davos USAs president Donald Trump er på plass i Davos, og held onsdag ettermiddag ein tale. Der seier han mykje går feil veg i Europa.

They could just walk out of him- this is nothing to applaude!

www.nrk.no/urix/donald-...

3 months ago 0 0 0 0
Preview
Striped Eel Catfish Traverse the Ocean Floor as a Strategically Rotating Mass For young striped eel catfish, there really is safety in numbers. A recent Instagram post shares a video by Marie-Laure Vergne of about one hundred juvenile fish moving across the bottom of the ocean....

www.thisiscolossal.com/2020/01/stri...

3 months ago 47 10 1 2
Video

Pacman - The microscopic world edition

Everything gets gobbled up.

#nature #microscopic

3 months ago 72 12 7 5
Preview
Genomic insights into the origin of ecotypes A century after Turesson introduced ecotypes as locally adapted subunits of species, their origins and nature remain debated. Recent advances in molecular ecology have breathed new life into the ecoty...

This looks like a very interesting review. Have a nice yuletide!

Genomic insights into the origin of ecotypes: Trends in Ecology & Evolution www.cell.com/trends/ecolo...

3 months ago 0 0 0 0
Preview
ESSAS 2026 Welcome to the 2026 ESSAS Annual Science Meeting. Borealization: Subarctic and Arctic Marine Systems in Transition. Hosted at the University of Iceland.

Abstract and registration open for the ESSAS annual meeting, held in Reykjavik June 2026.

#borealization #ecosystems #oceans #gadoids #arctic

english.hi.is/conference/e...

4 months ago 3 2 0 0
Post image

Since Christmas is soon here with all its strange traditions:
The christmas chocolate tennis racket from Bergen (Norway)! Since the 70s a "must-have" for people in Bergen, nobody knows why. Since I live in Bergen I have to have some, of course😊

4 months ago 0 0 0 0
Preview
Plasmid streamlining drives the extinction of antibiotic resistance plasmids under selection for horizontal transmission Conjugative plasmids play an important role in the spread of antimicrobial resistance (AMR) genes among pathogenic bacteria. This study shows that AMR loss in evolving populations is associated with the evolution of streamlined plasmids that gain a transmission advantage by deleting all of their AMR genes.

Plasmid streamlining drives the extinction of antibiotic resistance plasmids under selection for horizontal transmission | PLOS Biology journals.plos.org/plosbiology/article

4 months ago 7 2 0 0
Preview
Decadal scale phytoplankton species miniaturization in subtropical coastal waters Abstract. Miniaturization, i.e. reduction in body size, happens in different organisms as an adaptation strategy under environmental stress such as warming

Decadal scale phytoplankton species miniaturization in subtropical coastal waters | The ISME Journal | Oxford Academic academic.oup.com/ismej/article/19/1/wraf2...

4 months ago 2 2 0 0
Preview
The shift that sparks nitrification: PML research resolves long-standing mystery within the nitrogen cycle New PML research has shed light on a long-standing puzzle in marine science: why does nitrification – a key process in the ocean’s nitrogen cycle – only ‘switch on’ under certain conditi

The shift that sparks nitrification: PML research resolves long-standing mystery within the nitrogen cycle - @pml.ac.uk

pml.ac.uk/news/the-shi...

4 months ago 2 2 0 0
Advertisement

Hi Trine, have you checked which species this is, or are? My experience from aquaria is that it could also be colony forming diatoms, somtimes they look very much like Pylaiella or Ectocarpus-

4 months ago 0 0 0 1

But what is the environmental status of European waters? Consult the following paper for an overview:
👇
conbio.onlinelibrary.wiley.com/doi/full/10....

4 months ago 13 7 0 0
Preview
Pre-zygotic isolation in the macroalgal genus Fucus from four contact zones spanning 100–10 000 years: a tale of reinforcement? | Royal Society Open Science Hybrid zones provide an ideal natural experiment to study the selective forces driving evolution of reproductive barriers and speciation. If hybrid offspring are less fit than the parental species, pr...

Here it is! I am not sure if I managed to send my first reply but have a great stay in Icelan!

doi.org/10.1098/rsos...

5 months ago 1 0 1 0

I think the general hypothesis was that hybridization would decrease over time, and there was a publication about it some years ago. You have nice weather! Have a great stay!

5 months ago 1 0 0 0

How is it going with Fucus serratus in the area, and are there hybrids to be seen?

5 months ago 1 0 1 0
Preview
A comparative analysis of transposable element diversity and evolution across 75 bee genomes - BMC Genomics Transposable elements (TEs) are repetitive DNA sequences that can alter their position and abundance within genomes. While TEs are known to have various impacts on genome structure and function, our u...

TE dynamics across high-quality #genome assemblies of 75 bee species to quantify their diversity in an evolutionary context link.springer.com/article/10.1...

5 months ago 13 7 0 0

He is looking great! More hair than ever!

5 months ago 1 0 0 0
Hymn to the United Nations
Hymn to the United Nations YouTube video by United Nations

United Nations is 80 years today!
youtu.be/YlaiaW8y6NU

5 months ago 0 0 0 0
Preview
A re-examination of Laminaria gunneri reveals it to be synonymous with Hedophyllum nigripes (Laminariales, Phaeophyceae) The kelp Laminaria gunneri Foslie was described from Berlevåg in Northern Norway in 1885 and separated from Hedophyllum nigripes (J.Agardh) Starko, S.C.Lindstrom & Martone, but its taxonomic status...

A re-examination of Laminaria gunneri reveals it to be synonymous with Hedophyllum nigripes (Laminariales, Phaeophyceae) www.tandfonline.com/doi/full/10....

Analyzing kelps from Berlevåg fitting Foslie's description of Laminaria gunneri (from 1885) showed that it was Hedophyllum nigripes 😊

7 months ago 0 0 0 0
Advertisement

Tusenvis demonstrerer i Israel: – Vi stenger ned landet – NRK Norge – Oversikt over nyheter fra ulike deler av landet share.google/DSe4DIX4ddLq...

8 months ago 1 0 0 0

"Stem på havet, stem på vinden som styrer bølgene og former skyene..." (Stemmeseddel av Harald Sverdrup 😊)
Alle parti som er på parti med folk og natur er bra

8 months ago 2 0 0 0
Post image

A perfect work day at Fedje! Sampling seaweeds with phycologist from NMBU and Bergen university museum to search for minute green seaweeds.

8 months ago 2 0 1 0
Preview
A century of anthropogenic perturbations impact genomic signatures of the iconic migratory Atlantic cod Retrospective assessment of the iconic migratory Atlantic cod uncovers human-induced genome-wide changes during the last century.

Finally is this story out public!! With an amazing historical dataset from IMR (@havforskningsinstituttet) we demonstrate how human perturbations impact the genomic signal in one of the largest cod stocks in the world: the northeast arctic cod | Science Advances www.science.org/doi/10.1126/...

8 months ago 41 16 3 0