Johan S Eklöf

It was great to come and visit!

@umeaunimarine.bsky.social Thanks for hosting me - great seeing your impressive field station and happy to share my research with you!

Japp

#mycampus. Let’s see yours!

Se gäddan skrämma andra fiskar – kan öppna upp igenväxta vikar ”Skräckekologi” kan bromsa övergödningens effekter • Forskare undersöker fiskefredade vikar

Blir gäddor i fredningsområden mindre skygga, och hur påverkar detta isf ekosystemet i grunda havsvikar? Detta studerar doktorand Emil Kraft och masterstudent Alexander nu i sommar, vilket uppmärksammades av @svtnyheter.bsky.social : www.svt.se/nyheter/loka...

I wish more highly successful researchers would do what @lovedalen.bsky.social did here: reveal how much effort, and repeated rejection, that typically precedes each success in science. Never give up.

Varmare klimat kan göra Östersjön till utsläppskälla Forskare: ”Kan bidra till ökad uppvärmning”

Vad händer med upptag och utsläpp av växthusgaser när havens ekosystem störs? Detta är en fråga vi i sommar studerat på Askölaboratoriet, vilket nu uppmärksammats i bl.a. i Rapport: @svtnyheter.bsky.social : www.svt.se/nyheter/loka...
@ostersjocentrum.bsky.social @stockholm-uni.bsky.social

Modelbased for Quick and Beautiful Model Visualization in #rstats imachordata.com/2025/07/25/m... Thanks, @easystats.github.io!

New paper alert; we, led by @tiinasalo.bsky.social show experimentally that warming strengthens the cascading effects of predator phenotypic variation: besjournals.onlinelibrary.wiley.com/doi/pdfdirec....

Overfishing Social Fish Social learning is common among vertebrates, including fish. Learning from others reduces the risk and costs of adaptation. In some longer-lived species, social learning can lead to the formation of ...

Fascinating paper on something I never thought of: When we remove big old animals from wild populations (like fish) we might be losing important cultural transmission in species that learn from elders - Essentially culling transmission of collective knowledge onlinelibrary.wiley.com/doi/10.1111/...

Pushing the research front forward… What happens with GHG fluxes in shallow-bay benthic communities with infauna vs grazers - plus warming? @coastclim.bsky.social @balticseacentre.bsky.social with @nascimentofj.bsky.social

Heard of "Darwin's paradox"? It refers to Charles Darwin's observation that coral reefs are wildly productive despite occurring in nutrient-poor tropical oceans. Reefs are, so the story goes, oases in marine deserts 🏝️...

Turns out that 2/3 of these assertions are very wrong...

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home after some very fun, inspiring days at @hifmb.de symposium. Chatted with amazing peers like @jillianmpetersen.bsky.social, @ibaums.bsky.social, Martin Lindegren etc, and also presented our ongoing work in the Baltic Sea. Thank you so much @hillebr1.bsky.social for the invititation!

Precision ecology for targeted conservation action Nature Ecology & Evolution - The fields of medicine and marketing use large data volumes and computational power to target individuals. This Perspective argues that applied ecologists should...

🚀 New paper led by Dr Becks Spake!

We make the case for precision ecology—using big data & predictive tools to tailor conservation actions to local contexts.

Can ecology learn from medicine & marketing to boost impact? We think so.

Read it here: rdcu.be/eoaR4
#Conservation #Ecology #BigData

Measuring the Response Diversity of Ecological Communities Experiencing Multifarious Environmental Change This study explores how response diversity—variability in species' responses to environmental changes—relates ecological stability under complex, multifactorial environmental shifts. The authors intr...

Starting here in the best way: presenting a new paper.
onlinelibrary.wiley.com/doi/10.1111/...

Have a look at our new proposed way of calculating response diversity when multiple environmental drivers change simultaneously.

I just turned down the request. Tricky decision, but had to go with my gut feeling.

That’s the core question, I guess - whether it’s about supporting the scientists or the country. They’re probably good researchers struggling to get by like all of us.

Was just asked to review a non-political research grant proposal to a call funded by 2 countries whose politics I don’t support. Tricky to decide whether to accept the task or not. Thoughts?

Easter campus in spring colors

Uni Oldenburg is starting a genomics facility, and we are looking for a bioinformatician.
uol.de/en/job/bioin...
The position is initially for 3 years, but there are chances of permanency after the 3 years.
Please share!

Risks of habitat loss from seaweed cultivation within seagrass | PNAS Risks of habitat loss from seaweed cultivation within seagrass

#Seaweed farming has many potential benefits, but scaling these farms cannot be at the expense of other habitats (e.g. #seagrass) that support people! In our short letter, me, @eklof.bsky.social, @zosterar.bsky.social & others discuss why caution is needed.

www.pnas.org/doi/10.1073/...

revising a lecture on disturbances in tropical seagrasses, and recall having read a quote where early European explorers found hundreds of manatees grazing on seagrass somewhere in tropical western Atlantic, and that the seagrass looked like a golf lawn. Ring any bells? @boardshortsben.bsky.social

One of the most important things you can do today is your science. Knowing calculus/physics/genetics/chemistry etc. makes you rare and the world will need you to rebuild tomorrow. Practice your skills and pass them on. Keep the flame alive.
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Illuminating the multidimensional contributions of small-scale fisheries - Nature A study aimed at revealing the role of small-scale fisheries in sustainable development shows they provide at least 40% of the global fishing catch and affect the livelihoods of 1 in 12 people in the ...

Our new Nature paper on the multi-dimensional contributions of small scale fisheries just dropped www.nature.com/articles/s41.... We find that SSF supply ~40% of global fish catch worth >$77billion, with knock on benefits that support numerous sustainable development goals. A truly monumental effort

Bending the curve of biodiversity loss requires a ‘satnav’ for nature | Philosophical Transactions of the Royal Society B: Biological Sciences Georgina Mace proposed bending the curve of biodiversity loss as a fitting ambition for the Convention on Biological Diversity. The new Global Biodiversity Monitoring Framework (GBMF) may increase the...

Just finished reading this fab new paper by @andypurvisnhm.bsky.social

Bending the curve of #biodiversity loss requires a 'satnav' for nature
royalsocietypublishing.org/doi/full/10....

The satnav analogy helps to focus on forward-looking course corrections to our conservation policy + actions

I agree

Reduced predation and competition from herring may have contributed to the increase of three-spined stickleback in the Baltic Sea Abstract. In many areas of the Baltic Sea, three-spined stickleback (Gasterosteus aculeatus) has increased several fold since the early 2000s. Two major pl

In a new study in @icesmarine.bsky.social journal led by Serena Donadi, we show that herring is an underestimated piscivore and that the herring decline in the Baltic Sea may have contributed to the increase in three-spined stickleback: academic.oup.com/icesjms/adva...

Piscivorous herring – a unique fish in the Baltic Sea ecosystem | slu.se In the coastal areas of the Baltic Sea, unusually large herring are sometimes caught, which has long raised questions. Are these large herring a separate population, or are they individuals that ha...

Atlantic herring is one of the most abundant fishes in the world. In two new studies, we show that some herring in the Baltic Sea have become fish eaters. These piscivorous herring are genetically unique, grow fast, and play an important role in regulating stickleback populations.

I stare at numbers of fish counts, wishing I could myself count more fish.

Baltic Herring Turn Predators: A Stunning Evolutionary Shift A new study reveals a genetically distinct type of Baltic herring that thrives on a fish diet, unlike its Atlantic counterpart. This adaptation has likely occurred due to the unique conditions of the ...

The curious case of piscivorous herring in the Baltic Sea