iiinova — where your digital self keeps evolving

Timo Rittweg @otolitimo.bsky.social · 31/07/2026

And another one. 😁 My PhD thesis received the distinction of best dissertation at the agricultural faculty of the Humboldt University Berlin. I'm very honored by this prize, and yet again say thank you to all the people involved in my research over the years! You all rock! 😚

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Timo Rittweg @otolitimo.bsky.social · 22/04/2026

I had the great honor to be awarded with the dissertation award of the Baltic Sea Research Foundation for my PhD thesis on northern pike niche use and growth in coastal waters. I´m very happy about the prize, and thank the organizers for a wonderful ceremony in the Maritime Museum Stralsund. 🐟🎣🧪

deutsches-meeresmuseum.de

„Forschungsstiftung Ostsee“ vergibt Preise an herausragende Nachwuchswissenschaftler*innen

Im MEERESMUSEUM Stralsund erhielten am 14. April Dr. Timo Rittweg für seine Doktorarbeit und Juliane Ewald für ihre Masterarbeit die Förderpreise der „Forschungsstiftung Ostsee“. Erstmals wurde auch e...

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British Ecological Society @britishecologicalsociety.org · 08/04/2026

Ecological Solutions and Evidence is accepting proposals for their latest Special Feature! They invite scientists and practitioners to share experiences from management projects that didn't turn out as expected, but still provided important insights into how best to manage ecosystems and species 🌱

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Timo Rittweg @otolitimo.bsky.social · 22/12/2025

One week of otolith drilling later... Working on a project investigating the distribution and ecology of non-commercial migratory fish, one part of the project aims at reconstructing marine movements. Our first idea was looking at otoliths! 🐟🐠🐡 🧪 Image: twaite shad (Alosa fallax) otolith

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Timo Rittweg @otolitimo.bsky.social · 19/12/2025

New paper out, led by Allen Andrews, establishing a bomb radiocarbon chronology of the Baltic sea, and validating some Baltic fish aging protocols in the process --> doi.org/10.1093/ices... 🧪

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Dr Phoebe Griffith @crocodiledunphd.bsky.social · 31/03/2025

To extend everyone’s little sturgeon break… very chill baby sturgeons sturgeoning.

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Timo Rittweg @otolitimo.bsky.social · 31/03/2025

PhDone! Huge thanks to an amazing team, the Boddenpike gang, my inspiring supervisors & mentors, and everyone else involved in the project. Couldn´t have done this without any of you! Looking forward to many more exciting years of fishy research! 🧪🐟#PhDone #FishSci #Researcher

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Timo Rittweg @otolitimo.bsky.social · 11/03/2025

Little milestones which don´t mean a lot in the grand scheme of things, but I´m chuffed to have crossed 100 citations on my google scholar & RG profiles! Testimony to the fact there´s some people out there reading my stuff, thinking "well, that seems to make sense"! 😆🐟🧪

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Dr Phoebe Griffith @crocodiledunphd.bsky.social · 07/03/2025

Hi #fishsky - calling all fans of the fish Lota lota or #burbot. What common names do you know for this species (in any language) and why is it called that? I have heard some very funny common names in US English and German for the species and would LOVE to know some more! #fishtaxonomy

Phoebe wearing a white fluffy jacket (it’s night time, it is clearly very cold) is holding a gorgeous fish in front of her. It is mottled yellow and black and has a long tail and has inspired many folk names.

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Timo Rittweg @otolitimo.bsky.social · 06/03/2025

Question for any ecology peeps that might read my tweets (blues? Do we have a new word for this by now? 😅): Do you know of any courses teaching species distribution modelling techniques (correlative/causative) that you can recommend? Grateful for any advice (baby pike pic for attention) 🙏🧪

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Tim Heidecker @timheidecker.bsky.social · 28/02/2025

Opt out tomorrow!

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Thünen Fisheries and Survey Technology @thuenenfishtech.bsky.social · 28/02/2025

🎬 Lights, camera, action! 🌊 Last week, our new design pearls were in the spotlight. Part of our team was onboard our research vessel, testing its underwater visibility under the frequency of harbor porpoise clicks. Using an echosounder, we simulated these signals—and the results? Very promising! 🦑

Harbour of Rostock in the back, in the front you see a fishing line with one of our new pearls.

two people stand onboard of RV Solea in the harbour of Rostock preparing the setup for echo sound tests.

three people working on the bow of RV Solea to test the new pearls with the echo sounder.

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Fredrik Jutfelt 🐠 @jutfelt.bsky.social · 24/02/2025

Interested in automated length and morphological measurements? Check out our new app and preprint! 🧪🐟🦑 ecoevorxiv.org/repository/v...

A zebrafish on white background and a closeup of the zebrafish eye and face

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Greg Britton @gmbritton.bsky.social · 24/02/2025

Hey, higher ed leaders, this is what acting with courage looks like. Give it a try! We’ll support you.

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Timo Rittweg @otolitimo.bsky.social · 24/02/2025

Great piece about archival tissues by @otolithgirl.bsky.social. If you haven´t already, give it a read! 🐟🐢🦉🐋🧪

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Benjamin Hlina, PhD @benjaminhlina.bsky.social · 18/02/2025

Trophic ecologists who work with stable isotopes I bring you a{nichetools} - a complementary package to {SIBER} and {nicheROVER} that allows you to work with data objects created by either pkg. Check it out! benjaminhlina.github.io/nichetools/ #rstats #stableisotopes #foodwebs

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Zoe Doubleday @zoedoubleday.bsky.social · 17/02/2025

Congrats Erica Durante for publishing amazing research (+ your 4th PhD paper!). Erica developed methods to extract estrogen & progesterone from cephalopod beaks. Now we can get lifetime reproductive data from species we know little about! @aslo.org aslopubs.onlinelibrary.wiley.com/doi/10.1002/...

Zoe (author of post) is holding a beak of a giant octopus squid, a mysterious species we know little about.

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Timo Rittweg @otolitimo.bsky.social · 17/02/2025

Yes, more love for the "rough" fish! As soon as someone starts caring, that´s the first step! :)

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Jonathan C Slaght @jonathanslaght.com · 07/02/2025

It's #SuberbOwl weekend and yes, this account will bring the owls 🦉

Bearded man clutches an owl, with a fish in its mouth.

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The FSBI @thefsbi.bsky.social · 31/01/2025

#JFB: Native and non-native species response to the colonization and subsequent suppression of northern pike 𝘌𝘴𝘰𝘹 𝘭𝘶𝘤𝘪𝘶𝘴 doi.org/10.1111/jfb.15968 #FishSci

doi.org

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David Shiffman, Ph.D. 🦈 @whysharksmatter.bsky.social · 30/01/2025

I am an editor at a scientific journal that's global in scope, with papers from all over the world. Until my EIC tells me otherwise, I will respond to any sections of papers referring to the "Gulf of America" with: "LOL. LMAO. No."

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koemle.bsky.social @koemle.bsky.social · 16/01/2025

Happy to share that our paper "How quota cuts, recreational fishing, and predator conservation can shape coastal commercial fishery efforts" is finally published in CJFAS, with @rarlinghausfish.bsky.social, Sean Pascoe, Birgit Gassler and Simon Weltersbach cdnsciencepub.com/doi/full/10....

cdnsciencepub.com

Canadian Science Publishing

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Viktoria Cologna @colognaviktoria.bsky.social · 20/01/2025

Our global study on the state of trust in scientists is now out in Nature Human Behaviour! 🥳 With a team of 241 researchers, we surveyed 71,922 people in 68 countries, providing the largest dataset on trust in scientists post-pandemic 👇🧵https://www.nature.com/articles/s41562-024-02090-5

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Global Ecology 🌐 @global-ecology.bsky.social · 13/01/2025

📢 Global Ecology Digest #5, Jan 06-13, 2025 ✨For the lazy (yes we are) & friends who don't like social media (yes they can) but might benefit from Global Ecology feed, here’s a DIGEST ! 👉 globalecologybs.github.io/feeddigest.g... Crafted with ❤️, please share 🌐🌍🦤🦑🪴🍁

globalecologybs.github.io

bluesky Global Ecology Feed Digest #5

For the lazy (yes we are) and friends who do not like social media (yes they can) but could benefit from the news on the Global Ecology feed ... here is a curated digest of the 🦋 bluesky Global Ecolog...

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Timo Rittweg @otolitimo.bsky.social · 10/01/2025

Elven stewardship of natural wonders in iceland. Makes me think, there must be some hard-working, humorless, grumpy gremlins in German folklore that can be leveraged into protecting rivers and coastlines, no? 😅 atmos.earth/an-elven-all...

atmos.earth

An Elven Alliance Is Protecting Iceland’s Natural Wonders | Atmos

In the last century, environmental activists have used local belief in Huldufólk to protect the country’s landscapes—and elf culture.

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Robert Arlinghaus @rarlinghausfish.bsky.social · 10/01/2025

New #iucn based assessment of conservation status once more shows inland fisheries is not a jey threat. It is pollution, habitat loss etc. in freshwaters. Therefore, attention should focus there. www.nature.com/articles/s41...

nature.com

One-quarter of freshwater fauna threatened with extinction - Nature

A global multi-taxon extinction risk assessment of freshwater fauna for The IUCN Red List of Threatened Species finds one-quarter of species to be at high risk of extinction.

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Elizabeth Neswald @octobeth.bsky.social · 10/01/2025

Today in marine invertebrates What most humans want out of social media More squid 📸: NOAA

a bobtail squid resting on the sandy bottom. It is covered in red-brown spots. Its arms are folded under it and the eyes raised to look into the camera.

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Ulf Bergström @ulfbergstrom.bsky.social · 08/01/2025

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.

slu.se

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...

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drogle.bsky.social @drogle.bsky.social · 08/01/2025

A new #fishR post today showing newly modified functions in the #FSA package being used with #dplyr or #purrr to efficiently compute abundance (w/ removal/depletion data) or mortality (w/ catch-curve data) for multiple groups (e.g., species, area). #rstats fishr-core-team.github.io/fishR/blog/p...

fishr-core-team.github.io

FSA Analyses for Multiple Groups – fishR

Demonstrate new (or improved) functionality in the FSA package for efficiently performing some analyses across multiple groups.

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Hank Baker @hankbaker.bsky.social · 16/12/2024

Very heartening to see so many coho salmon spawning here on the central California coast. 🐟🧪🌎

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Timo Rittweg @otolitimo.bsky.social · 25/12/2024

Christmas paper, fresh from under the tree!!! Everyone measuring oxygen isotopes in fish otoliths, this year for Christmas, we´re making the whole story just a little bit more complicated for you (naughty!), but we also offer solutions (back on the nice list maybe…?) 🧪🐟🧵 doi.org/10.1016/j.fi...

doi.org

Redirecting

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The Ricciardians @ricciardilab.bsky.social · 20/12/2024

The CIA built a catfish robot as a spy. We're guessing his real name was James Pond. #25DaysOfFishmas getpocket.com/explore/item...

getpocket.com

The CIA Once Built a Catfish Robot Spy Named Charlie

He was probably useless.

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c0nc0rdance @c0nc0rdance.bsky.social · 20/12/2024

This is the Christmas Darter (Etheostoma hopkinsi), a fish native to the American southeast so named for the colorful green and red coloration. There's a closely related subspecies that is called the 'Christmas Eve' or 'Hanukkah' darter (E. h. binotatum). Happy Holidays to all!

inaturalist.org

Christmas Darter (Etheostoma hopkinsi)

The Christmas darter (Etheostoma hopkinsi) is found in the Savannah, Ogeechee and Altamaha drainages in South Carolina and Georgia (Source: Wikipedia, '', http://en.wikipedia.org/wiki/Christmas_darter...

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Timo Rittweg @otolitimo.bsky.social · 20/12/2024

I see Freshwater Megafauna Christmas, and raise you Hecht Ruprecht! Germans will get it, Knecht Ruprecht is a partially demonic helper of Santa, carrying a cudgel/rod and a sack to punish naughty children. Figure comes from the same folklore as the better known Krampus. And Hecht means pike. 😁

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Dr Phoebe Griffith @crocodiledunphd.bsky.social · 20/12/2024

Merry (freshwater) Mega(fauna) Christmas! 🎄

An arapaima is wearing a Santa hat. A burbot is wearing a red hat with holly. A Chinese giant salamander is wearing reindeer horns and has a Christmas pudding. These freshwater megafauna are having a mega Christmas party.

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Jon Kuntz, PhD 🦈 @sharkeye.bsky.social · 17/12/2024

My first first-author paper was published this morning! Did you know eye lenses grow in layers throughout life and can be analyzed to study movement and foraging ecology. But eye lenses differ in bio molecular composition across fish taxa, especially for sharks! 🧪🌎🦑 link.springer.com/article/10.1...

link.springer.com

Investigating eye lens composition for stable isotope analysis in fishes: a comparison between Chondrichthyes and Actinopterygii - Environmental Biology of Fishes

Life history ecology provides a framework for understanding the complex interactions between organisms and their environments but is challenging to resolve for long-lived and migratory species. In fis...

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Richard Dashnau @rickubis.bsky.social · 16/12/2024

10/20/2024 Huge Gar by Elm Lake Pier #2 at BBSP. Maybe hunting? Using suction while 'lateral feeding' in"Feeding kinematics {etc}" by Lemberg(2019). The gar surfaced later. video: www.rickubis.com/rick/alligat... gar page: www.rickubis.com/rick/garfish... #GarWeek @solomonrdavid.bsky.social

image 1 of 4 Looking down into smooth body of water. The reflection of a tree branch is prominent, and partially hides what's below the dark water. A long, thick, pale shape is under the water. We are looking down at a very large, torpedo-shaped fish, which is angled from upper right to lower to its snout pointing at the lower left of the image. The shapes of two sets of dorsal fins are dimly visible. The body is straight. The fish is an Alligator Gar, and I was looking down at it from the edge of a pier that was over the water.

image 2 of 4 Looking down into smooth body of water. The reflection of a tree branch is prominent, and partially hides what's below the dark water. A long, thick, pale shape is under the water. We are looking down at a very large, torpedo-shaped fish, which is angled from upper right to lower to its snout pointing at the lower left of the image. The shapes of two sets of dorsal fins are dimly visible. The body is straight, but has shifted slightly from image #1. It has turned a bit towards our right and its mouth is open! We can see here that the belly (and inside the mouth) is a lighter color than the rest of the fish. We can also see the tail, which is slightly curved. The fish is an Alligator Gar, and I was looking down at it from the edge of a pier that was over the water. The Gar was making sweeping side-to-side motions as it continued to turn.

image 3 of 4 Looking down into smooth body of water. The reflection of a tree branch is prominent, and partially hides what's below the dark water. A floating mat of green vegetation shows in the upper right corner. A long, thick, pale shape is under the water. We are looking down at a very large, torpedo-shaped fish, which has appeared from under the floating vegetation and is moving right to left. It is moving towards our left and its mouth is open! We can see here that the belly (and inside the mouth) is a lighter color than the rest of the fish. The fish is still a few feet below the surface, so is partly hidden by the dark water. The silhouettes of many very small fish show in contrast against the pale skin of the fish as it moved through a cloud of them. The fish is an Alligator Gar, and I was looking down at it from the edge of a pier that was over the water. The Gar had moved into cover after image #2 and then reappeared here, to continue the sweeping motions. It moved back into cover of the murky water.

image 4 of 4 Looking downat an angle, at a body of water. The water is covered by tiny wind ripples, and reflections hide most of what's under it. But at image center, a very large, torpedo-shaped fish, which is moving from right to left, is breaking the surface. This is a cropped telephoto so we can clearly see the fish. The fish is not jumping, but has come up and pushed its snout out of the water as it paused. Even at some distance away, but we can see that its mouth is open and filled with many sharp teeth. Behind the head, two huge gas bubbles have burst and are collapsing. We can see here that the lower jaw is a lighter color than darker brown of the rest of the fish. We can also see the tail, which is yellowish, and has small, dark spots. The fish is an Alligator Gar, and I was watching it from the edge of a pier that was over the water. After the Gar in images 1, 2, and 3 swam off, I could follow it as it swam away, but it stayed near the surface so I could film it. It surfaced to refresh its air breathing organ.

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Olaf Nelson @moxostoma.bsky.social · 16/12/2024

Little-known fact: Shortnose Gar can fly! See moxostoma.com/garfrenzy/ for more photos and the whole story. #gar #garweek

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Jennifer Clausen @jacsciart.bsky.social · 15/12/2024

Definitely not on-theme (again) for this week's #SundayFishSketch. This illustration of a Burbot took way longer than I care to admit, but I am pretty happy with how it turned out in the end.

An illustration of a burbot (Lota lota). The fish is emerging from black water into the view of what looks to be the light from an ROV. Small silver fish swim near the silty bottom.

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fishinvasionslab.bsky.social @fishinvasionslab.bsky.social · 14/12/2024

14th day of the #25daysofFishmas with a macrophthalmic Sea lamprey (Petromyzon marinus) collected in the lower Tagus river! Native to pur waters it has been declining decade after decade mostly due to overfishing and habitat loss. @MAREscience

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Steven J Cooke @sjcfishy.bsky.social · 14/12/2024

Do fish in an urban river system use a rehabilitated and reconnected stormwater pond during the summer? YUP! Read about it in new OA paper by @j-reid.bsky.social - Congrats Jess on publishing 1st thesis chapter. authors.elsevier.com/sd/article/S...

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