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Chris Berglund

@chrisberglund.bsky.social

PhD student at @uniofstandrews.bsky.social and @seamammalresearch.bsky.social looking at habitat preference of harbor seals and gray seals in Scotland.

522 Followers  |  283 Following  |  154 Posts  |  Joined: 30.11.2023  |  2.2607

Latest posts by chrisberglund.bsky.social on Bluesky

Pelican sticking its head straight up in the air while surrounded by other pelicans and cormorants.

Pelican sticking its head straight up in the air while surrounded by other pelicans and cormorants.

Pelican sticking its head straight up in the air while surrounded by other pelicans and cormorants.

Pelican sticking its head straight up in the air while surrounded by other pelicans and cormorants.

When pelicans yawn, they tilt their head all the way back.

13.10.2025 15:02 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

There's an additional level of weirdness because online sports betting is still illegal in like 17 states

13.10.2025 01:02 โ€” ๐Ÿ‘ 6    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

You sure you werenโ€™t accidentally watching a cricket match? Those can last days

11.10.2025 05:08 โ€” ๐Ÿ‘ 2    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

With seven years since the last large leptospirosis outbreak compared the the more typical 3-5, I do wonder how much of it is driven by a greater proportion of the population that is immunologically naive. Will be curious to see what comes of it

03.10.2025 19:47 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Iโ€™m now contractually obligated to think gray seals are the coolest species of seal, but I definitely have a soft spot for Weddell seals even though I never got to see them in person

01.10.2025 02:06 โ€” ๐Ÿ‘ 2    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

Maybe itโ€™s one of them erasable engravings

24.09.2025 19:41 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Nutria

19.09.2025 18:45 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Kind of weird of them to go with a sea otter for the image instead of the actual river otter species

19.09.2025 18:45 โ€” ๐Ÿ‘ 3    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Is it mostly argos thatโ€™s used for shark tags?

19.09.2025 15:03 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Somehow managed to be more delusional than the English monarchs who kept including King of France in their list of titles all the way until 1802

15.09.2025 04:50 โ€” ๐Ÿ‘ 6    ๐Ÿ” 1    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Very opposite feelings watching this game vs watching the Lynx earlier today

15.09.2025 02:53 โ€” ๐Ÿ‘ 3    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
Fluffy Weddell seal pup looks straight into the camera

Fluffy Weddell seal pup looks straight into the camera

We are seeking a motivated PhD student to investigate how multiple mesopredators share space and resources in the Southern Ross Sea. The project will address questions about niche partitioning (both spatial and temporal) and foraging ecology in the Southern Ocean using three years of animal tracking data deployed on penguins (n = 60) and seals (n = 30). Specifically, we wish to uncover aspects of three-dimensional space use in Adรฉlie penguins, emperor penguins, and Weddell seals at Cape Crozier, in the southern Ross Sea. There exists one of the largest colonies of Adรฉlie penguins, a small colony of emperor penguins, and a small group of Weddell seals. We ask: How are these animals using the same space at the same time? How can that part of the ocean support hundreds of thousands of central-place foragers in a relatively small foraging halo, during the short summer window of time? Answers to these questions will provide fine-scale insights as part of the larger project which seeks to understand the metacommunity structure of marine mesopredators in the Southern Ocean and will inform conservation in the Ross Sea Marine Protected Area (one of the largest in the world). With the first 10-year evaluation of the MPA coming up, this project will have immediate real-world impact.
We cannot guarantee Antarctic field work as part of the PhD project.
Funding: Rutherford Discovery Fellowship ($27,000 NZD/year for three years + fees), plus potential school-supported (School of Earth and Environment) conference travel opportunities.
Requirements: Bachelorโ€™s and Masterโ€™s degree in Ecology, Marine Biology, Geography, Zoology or Statistics required; good communication skills (written and verbal), with previous publication experience a bonus; strong work ethic, strong initiative, and team attitude; previous experience handling biologging data (in any system), large datasets, and data wrangling a plus.

We are seeking a motivated PhD student to investigate how multiple mesopredators share space and resources in the Southern Ross Sea. The project will address questions about niche partitioning (both spatial and temporal) and foraging ecology in the Southern Ocean using three years of animal tracking data deployed on penguins (n = 60) and seals (n = 30). Specifically, we wish to uncover aspects of three-dimensional space use in Adรฉlie penguins, emperor penguins, and Weddell seals at Cape Crozier, in the southern Ross Sea. There exists one of the largest colonies of Adรฉlie penguins, a small colony of emperor penguins, and a small group of Weddell seals. We ask: How are these animals using the same space at the same time? How can that part of the ocean support hundreds of thousands of central-place foragers in a relatively small foraging halo, during the short summer window of time? Answers to these questions will provide fine-scale insights as part of the larger project which seeks to understand the metacommunity structure of marine mesopredators in the Southern Ocean and will inform conservation in the Ross Sea Marine Protected Area (one of the largest in the world). With the first 10-year evaluation of the MPA coming up, this project will have immediate real-world impact. We cannot guarantee Antarctic field work as part of the PhD project. Funding: Rutherford Discovery Fellowship ($27,000 NZD/year for three years + fees), plus potential school-supported (School of Earth and Environment) conference travel opportunities. Requirements: Bachelorโ€™s and Masterโ€™s degree in Ecology, Marine Biology, Geography, Zoology or Statistics required; good communication skills (written and verbal), with previous publication experience a bonus; strong work ethic, strong initiative, and team attitude; previous experience handling biologging data (in any system), large datasets, and data wrangling a plus.

Join Mia Wege and me to study niche partitioning among three Antarctic mesopredators!

Fully-funded PhD opportunity at U Canterbury, please email michelle.larue@canterbury.ac.nz if you're interested!

Applications will be reviewed until filled.

15.09.2025 01:19 โ€” ๐Ÿ‘ 35    ๐Ÿ” 19    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 5
Preview
Splines, B-splines, P-splines, and a disapproving kitten โ€“ Notes from a data witch No, I do not care about splines. But I am trying to learn about GAMLSS regression, and yes, it is to this dark place that this topic has taken me

At the risk of stretching the imagination beyond the limits of human endurance, the reader is asked to pretend that the author is interested in splines #rstats

08.09.2025 01:41 โ€” ๐Ÿ‘ 68    ๐Ÿ” 21    ๐Ÿ’ฌ 7    ๐Ÿ“Œ 2

โ€œWhat the heck even is salinityโ€ feels like a more appropriate name for an intro to physical oceanography class.

02.09.2025 18:15 โ€” ๐Ÿ‘ 2    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

I feel like AMOC/Gulf Stream thing is one of the pet peeves that always got brought up in every physical oceanography class I took. Also that practical salinity is unitless

02.09.2025 18:09 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

Oh that brings me back. In 2015, we had a severe marine heat wave (โ€˜the blobโ€™) which resulted in an insane number of strandings of sea lions in California along with just about every sort of sea creature. So many people asked about Fukushima even though it was 4 years before and 9000 miles way.

29.08.2025 16:56 โ€” ๐Ÿ‘ 5    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

I had a similar moment when I was working in marine mammal stranding and someone on a beach asked me if chemtrails were why sea lions strand. He said he had been watching the skies diligently since 1992. Who am I to argue with that?

29.08.2025 16:40 โ€” ๐Ÿ‘ 7    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
Preview
Getting the Seal of Approval: Marine Animals as Ocean Scientists - Dundee Heritage Trust From weather forecasting to understanding climate change, Dr Lars Boehme from the Sea Mammal Research Unit will discuss how seals can help us.

๐Ÿš€ Upcoming Talk! ๐Ÿš€

Dr Lars Boehme from SMRU (@seamammalresearch.bsky.social) will share how SMRU Instrumentation tags and seals can help advance marine science. ๐Ÿฆญ

๐Ÿ“ Discovery Point, Dundee.
๐Ÿ“† Sat 13 & Sun 14 September
๐Ÿ•ง 12:30 pm both days

More info: www.dundeeheritagetrust.co.uk/event/how-se...

28.08.2025 10:32 โ€” ๐Ÿ‘ 8    ๐Ÿ” 7    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Any claims about caring about the wellbeing of whales is so transparently bad faith when theyโ€™re cutting funding for research that actually helps inform conservation

26.08.2025 22:55 โ€” ๐Ÿ‘ 2    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

The article is from a couple months ago. The DA wave is more or less over at this point. Now itโ€™s a bacterial infection called leptospirosis thatโ€™s driving a lot of strandings.

23.08.2025 14:14 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

We named him Ersa. We were going through a real moons of Jupiter phase with our names

22.08.2025 01:36 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
A photo of a Steller sea lion pup with its mouth open.

A photo of a Steller sea lion pup with its mouth open.

Probably not as effective of a bully as your guy

21.08.2025 16:36 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

Most people I know that have been bitten by seals/sea lions: otters havenโ€™t been too bad. They mostly just want you to back off. Still not particularly fun.

This was back when I was working in rescue/rehab. Getting to work with them was such a treat. I only ever got one Steller sea lion though

21.08.2025 16:33 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

It wasnโ€™t too bad. She was only a 70ish kg California sea lion. I had to poke her with a needle and for some reason she found that objectionable and got my hand a little as I was pulling back. Honestly, the antibiotics I had to take afterwards were probably more unpleasant than the bite itself.

21.08.2025 04:40 โ€” ๐Ÿ‘ 2    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

I really liked your illustrations. Those of us in the sea lion biz call it spy hopping. Even though I'm working on seals now, sea lions are always going to be my favorites and that's even having been bitten by one. There is that combination of intelligence, cuteness, and terrifyingness.

21.08.2025 03:13 โ€” ๐Ÿ‘ 2    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
a Sea Lion roar
YouTube video by James MacDiarmid a Sea Lion roar

Probably the second best sea lion in terms of sound. I think first place has to go to New Zealand sea lions.

www.youtube.com/watch?v=dDPc...

20.08.2025 07:02 โ€” ๐Ÿ‘ 4    ๐Ÿ” 1    ๐Ÿ’ฌ 2    ๐Ÿ“Œ 0
Eerie Vocals of Weddell Seal Pup & Adult
YouTube video by Weddell Seal Science Eerie Vocals of Weddell Seal Pup & Adult

Plus, Weddell seal vocalizations just sound so much cooler (I am very biased)

www.youtube.com/watch?v=4CRB...

20.08.2025 04:14 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

One complication is that decibels is referenced to a pressure. Sounds in air are referenced to 20 ยตPa while sounds in water (like leopard seal vocalizations) are referenced to 1 ยตPa, so it's not really as loud as it might seem at first. That's the only thing I remember from bioacoustics classes

20.08.2025 04:13 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
Post image

SDMs are powerful tools, but only if feed them with the right variables (be biologists, not blind programmers!). We show how data dredging approaches relying on the 19 bioclimatic variables can lead to misleading predictions & interpretation. Led by @giordanomancini.bsky.social
shorturl.at/Y2BpC

12.08.2025 19:08 โ€” ๐Ÿ‘ 13    ๐Ÿ” 4    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 1

Yeah, weโ€™ve got them in shallow waters in California. Theyโ€™re a pretty common prey item for otters in this one tidal estuary, and otters always look at least a little silly while eating them.

08.08.2025 03:56 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

@chrisberglund is following 20 prominent accounts