Einar Hjörleifsson
@einarhj.bsky.social
Fisheries scientist. Dabbled in fish stock assessment, HCR evaluation and advice for a while. Dabble now in spatial fisheries footprint.
Reposted by Einar Hjörleifsson
"Fifteen Maps that Changed How We See the Ocean Floor"
Based on his research for The Library of Lost Maps, James Cheshire of @ucl.ac.uk pulled together these seminal works of Marie Tharp and Bruce Heezen!
cc @seabed2030.bsky.social 🌊 ⚒️ 🌎 🌍 🌏
libraryoflostmaps.com/2026/05/06/f...
Based on his research for The Library of Lost Maps, James Cheshire of @ucl.ac.uk pulled together these seminal works of Marie Tharp and Bruce Heezen!
cc @seabed2030.bsky.social 🌊 ⚒️ 🌎 🌍 🌏
libraryoflostmaps.com/2026/05/06/f...
Honoring Marie Tharp and Bruce Heezen's Ocean Mapping Legacy
Discover the groundbreaking ocean maps by Marie Tharp and Bruce Heezen that reshaped our understanding of the seafloor and plate tectonics.
libraryoflostmaps.com
May 6, 2026 at 1:55 PM
"Fifteen Maps that Changed How We See the Ocean Floor"
Based on his research for The Library of Lost Maps, James Cheshire of @ucl.ac.uk pulled together these seminal works of Marie Tharp and Bruce Heezen!
cc @seabed2030.bsky.social 🌊 ⚒️ 🌎 🌍 🌏
libraryoflostmaps.com/2026/05/06/f...
Based on his research for The Library of Lost Maps, James Cheshire of @ucl.ac.uk pulled together these seminal works of Marie Tharp and Bruce Heezen!
cc @seabed2030.bsky.social 🌊 ⚒️ 🌎 🌍 🌏
libraryoflostmaps.com/2026/05/06/f...
Reposted by Einar Hjörleifsson
Healthy and sustainable fisheries have lower carbon emissions and fuel use, because fish are more abundant and easier to catch with less effort. Rebuilding fisheries and ensuring that fleet sizes are appropriate for catch level, are keys for CO2 reduction
By Hilborn et al.
doi.org/10.1111/faf....
By Hilborn et al.
doi.org/10.1111/faf....
doi.org
January 20, 2026 at 11:07 PM
Healthy and sustainable fisheries have lower carbon emissions and fuel use, because fish are more abundant and easier to catch with less effort. Rebuilding fisheries and ensuring that fleet sizes are appropriate for catch level, are keys for CO2 reduction
By Hilborn et al.
doi.org/10.1111/faf....
By Hilborn et al.
doi.org/10.1111/faf....
Reposted by Einar Hjörleifsson
Is the recent increase in Northern cod quota sustainable or not? Blog post from Sustainable Fisheries UW
sustainablefisheries-uw.org/northern-cod...
sustainablefisheries-uw.org/northern-cod...
The Northern Cod Quota Increase – a risky decision or a precautionary approach? - Sustainable Fisheries UW
Canada reopened the Northern cod fishery and doubled the quota. Learn what the data, scientists, and ecosystem indicators say about this controversial decision.
sustainablefisheries-uw.org
January 5, 2026 at 6:43 PM
Is the recent increase in Northern cod quota sustainable or not? Blog post from Sustainable Fisheries UW
sustainablefisheries-uw.org/northern-cod...
sustainablefisheries-uw.org/northern-cod...
Reposted by Einar Hjörleifsson
#RStats - I realized I had more to say about working with #DuckDB and R so I put it into a new repo. Enjoy!
github.com/eriksquires/...
github.com/eriksquires/...
github.com
December 29, 2025 at 3:44 PM
#RStats - I realized I had more to say about working with #DuckDB and R so I put it into a new repo. Enjoy!
github.com/eriksquires/...
github.com/eriksquires/...
Reposted by Einar Hjörleifsson
The Art of Data Visualization with ggplot2: A free online book by @nrennie.bsky.social that guides us through the entire process of creating plots, including why certain decisions were made, using real datasets that have been part of #TidyTuesday. Very excited to get stuck into this one. #rstats
The Art of Data Visualization with ggplot2
The TidyTuesday Cookbook
nrennie.rbind.io
September 11, 2025 at 8:41 PM
The Art of Data Visualization with ggplot2: A free online book by @nrennie.bsky.social that guides us through the entire process of creating plots, including why certain decisions were made, using real datasets that have been part of #TidyTuesday. Very excited to get stuck into this one. #rstats
Reposted by Einar Hjörleifsson
What fish can you find swimming between the algae in the rocky intertidal zone of Breiðafjörður? 🐟
Are these fish impacted by seaweed harvesting?🌱
Read about this recent study by @jonmagnusson.bsky.social
www.icefishresearch.com/2025/08/22/w...
@mfri.bsky.social @haskoliislands.bsky.social
Are these fish impacted by seaweed harvesting?🌱
Read about this recent study by @jonmagnusson.bsky.social
www.icefishresearch.com/2025/08/22/w...
@mfri.bsky.social @haskoliislands.bsky.social
August 22, 2025 at 11:54 AM
What fish can you find swimming between the algae in the rocky intertidal zone of Breiðafjörður? 🐟
Are these fish impacted by seaweed harvesting?🌱
Read about this recent study by @jonmagnusson.bsky.social
www.icefishresearch.com/2025/08/22/w...
@mfri.bsky.social @haskoliislands.bsky.social
Are these fish impacted by seaweed harvesting?🌱
Read about this recent study by @jonmagnusson.bsky.social
www.icefishresearch.com/2025/08/22/w...
@mfri.bsky.social @haskoliislands.bsky.social
Reposted by Einar Hjörleifsson
Just published ‼️Super fun project with Ragnar Edvardsson and @einarhj.bsky.social
Examining synergy between #UCH and marine #biodiversity protection in #Iceland
Considering #shipwrecks may diversify #MPA coverage in areas with high trawling - for #30x30 ⚓
www.sciencedirect.com/science/arti...
Examining synergy between #UCH and marine #biodiversity protection in #Iceland
Considering #shipwrecks may diversify #MPA coverage in areas with high trawling - for #30x30 ⚓
www.sciencedirect.com/science/arti...
Synergies between underwater cultural heritage and biodiversity conservation in Iceland: Insights for achieving 30 × 30 targets
Underwater cultural heritage (UCH), including shipwrecks, is increasingly recognized for its dual significance as both historical artifacts and ecolog…
www.sciencedirect.com
May 31, 2025 at 7:19 AM
Just published ‼️Super fun project with Ragnar Edvardsson and @einarhj.bsky.social
Examining synergy between #UCH and marine #biodiversity protection in #Iceland
Considering #shipwrecks may diversify #MPA coverage in areas with high trawling - for #30x30 ⚓
www.sciencedirect.com/science/arti...
Examining synergy between #UCH and marine #biodiversity protection in #Iceland
Considering #shipwrecks may diversify #MPA coverage in areas with high trawling - for #30x30 ⚓
www.sciencedirect.com/science/arti...
Reposted by Einar Hjörleifsson
This is such a great resource. arelbundock.com/posts/dt_tb_... #rstats
data.table vs. base vs. dplyr – Vincent Arel-Bundock
arelbundock.com
May 27, 2025 at 12:58 PM
This is such a great resource. arelbundock.com/posts/dt_tb_... #rstats
Norwegian commercial fisheries data are truly open, check out:
heima.hafro.is/~einarhj/fis...
heima.hafro.is/~einarhj/fis...
May 23, 2025 at 10:49 PM
Norwegian commercial fisheries data are truly open, check out:
heima.hafro.is/~einarhj/fis...
heima.hafro.is/~einarhj/fis...
Reposted by Einar Hjörleifsson
The SmileyCharity donates tablets to SmileyLibraries, which lend them to students who access the SmileyTutor, solve math drills and earn SmileyCoin (SMLY), which they use to make purchases in SmileyStores.
The SMLY rewards have an amazing impact.
More on Patreon
www.patreon.com/posts/126281...
The SMLY rewards have an amazing impact.
More on Patreon
www.patreon.com/posts/126281...
The amazing effects of SmileyCoin awards | SmileyCharity and Education in a Suitcase
Get more from SmileyCharity and Education in a Suitcase on Patreon
www.patreon.com
May 19, 2025 at 6:07 PM
The SmileyCharity donates tablets to SmileyLibraries, which lend them to students who access the SmileyTutor, solve math drills and earn SmileyCoin (SMLY), which they use to make purchases in SmileyStores.
The SMLY rewards have an amazing impact.
More on Patreon
www.patreon.com/posts/126281...
The SMLY rewards have an amazing impact.
More on Patreon
www.patreon.com/posts/126281...
Reposted by Einar Hjörleifsson
The SmileyCharity builds on the SmileyTutor.
The SmileyTutor is a freely accessible platform, where students solve drills on various topics.
The main user base is in Africa where some 6000 students have submitted over 25 million answers to math questions.
More on Patreon
patreon.com/eias
The SmileyTutor is a freely accessible platform, where students solve drills on various topics.
The main user base is in Africa where some 6000 students have submitted over 25 million answers to math questions.
More on Patreon
patreon.com/eias
Get more from SmileyCharity and Education in a Suitcase on Patreon
creating educational opportunities in low-income regions
patreon.com
May 19, 2025 at 6:12 PM
The SmileyCharity builds on the SmileyTutor.
The SmileyTutor is a freely accessible platform, where students solve drills on various topics.
The main user base is in Africa where some 6000 students have submitted over 25 million answers to math questions.
More on Patreon
patreon.com/eias
The SmileyTutor is a freely accessible platform, where students solve drills on various topics.
The main user base is in Africa where some 6000 students have submitted over 25 million answers to math questions.
More on Patreon
patreon.com/eias
Reposted by Einar Hjörleifsson
Register now for our training course,
Close-Kin Mark-Recapture for Fisheries and Bycatch
📅18–22 August 2025
📍ICES Hq, Copenhagen, Denmark
#CKMR www.ices.dk/events/Train...
Watch ▶️ A No BS guide to fishery stock assessment
www.youtube.com/watch?v=-58B... from 01:36:00
Close-Kin Mark-Recapture for Fisheries and Bycatch
📅18–22 August 2025
📍ICES Hq, Copenhagen, Denmark
#CKMR www.ices.dk/events/Train...
Watch ▶️ A No BS guide to fishery stock assessment
www.youtube.com/watch?v=-58B... from 01:36:00
Close-Kin Mark-Recapture for Fisheries and Bycatch
www.ices.dk
May 14, 2025 at 2:43 PM
Register now for our training course,
Close-Kin Mark-Recapture for Fisheries and Bycatch
📅18–22 August 2025
📍ICES Hq, Copenhagen, Denmark
#CKMR www.ices.dk/events/Train...
Watch ▶️ A No BS guide to fishery stock assessment
www.youtube.com/watch?v=-58B... from 01:36:00
Close-Kin Mark-Recapture for Fisheries and Bycatch
📅18–22 August 2025
📍ICES Hq, Copenhagen, Denmark
#CKMR www.ices.dk/events/Train...
Watch ▶️ A No BS guide to fishery stock assessment
www.youtube.com/watch?v=-58B... from 01:36:00
Reposted by Einar Hjörleifsson
📚😅🎉
Yay!! I just submitted the complete manuscript of my upcoming book to the publisher!
Learn to easily and clearly interpret (almost) any stats model w/ R or Python. Simple ideas, consistent workflow, powerful tools, detailed case studies.
Read it for free @ marginaleffects.com
#RStats #PyData
Yay!! I just submitted the complete manuscript of my upcoming book to the publisher!
Learn to easily and clearly interpret (almost) any stats model w/ R or Python. Simple ideas, consistent workflow, powerful tools, detailed case studies.
Read it for free @ marginaleffects.com
#RStats #PyData
April 10, 2025 at 7:06 PM
📚😅🎉
Yay!! I just submitted the complete manuscript of my upcoming book to the publisher!
Learn to easily and clearly interpret (almost) any stats model w/ R or Python. Simple ideas, consistent workflow, powerful tools, detailed case studies.
Read it for free @ marginaleffects.com
#RStats #PyData
Yay!! I just submitted the complete manuscript of my upcoming book to the publisher!
Learn to easily and clearly interpret (almost) any stats model w/ R or Python. Simple ideas, consistent workflow, powerful tools, detailed case studies.
Read it for free @ marginaleffects.com
#RStats #PyData
Reposted by Einar Hjörleifsson
🎣 How accurate are automated fishing effort estimates from Global Fishing Watch?🌍
✍️ A new #IJMS #EditorsChoice finds #GlobalFishingWatch data can overestimate pelagic fishing effort by as much as 390% & urges stronger science–industry collaboration.
👉 More www.ices.dk/news-and-eve...
📷L. de Nijs PFA
✍️ A new #IJMS #EditorsChoice finds #GlobalFishingWatch data can overestimate pelagic fishing effort by as much as 390% & urges stronger science–industry collaboration.
👉 More www.ices.dk/news-and-eve...
📷L. de Nijs PFA
April 1, 2025 at 12:44 PM
🎣 How accurate are automated fishing effort estimates from Global Fishing Watch?🌍
✍️ A new #IJMS #EditorsChoice finds #GlobalFishingWatch data can overestimate pelagic fishing effort by as much as 390% & urges stronger science–industry collaboration.
👉 More www.ices.dk/news-and-eve...
📷L. de Nijs PFA
✍️ A new #IJMS #EditorsChoice finds #GlobalFishingWatch data can overestimate pelagic fishing effort by as much as 390% & urges stronger science–industry collaboration.
👉 More www.ices.dk/news-and-eve...
📷L. de Nijs PFA
Reposted by Einar Hjörleifsson
The Iceland march groundfish survey, ~500 stations surveyed annually to collect information of the bottom dwelling species down to depths of 500 m. The map can be viewed live at skip.hafro.is. @mfri.bsky.social
March 16, 2025 at 12:18 PM
The Iceland march groundfish survey, ~500 stations surveyed annually to collect information of the bottom dwelling species down to depths of 500 m. The map can be viewed live at skip.hafro.is. @mfri.bsky.social
Reposted by Einar Hjörleifsson
Reposted by Einar Hjörleifsson
Another day, another conversation in which I recommend "Building reproducible analytical pipelines with R" by Bruno Rodrigues to a data friend 💁🏻♀️ raps-with-r.dev
Building reproducible analytical pipelines with R
raps-with-r.dev
January 10, 2025 at 6:18 PM
Another day, another conversation in which I recommend "Building reproducible analytical pipelines with R" by Bruno Rodrigues to a data friend 💁🏻♀️ raps-with-r.dev
Loaded a board of summary metrics from the annual Icelandic fall Groundfish Survey on fishvice.shinyapps.io/is-smh - overview in time, lengths and space for all species. For non-natives speakers you also get a chance to improve your Icelandic. All done within the wonderful world of #rstats
December 18, 2024 at 8:01 PM
Loaded a board of summary metrics from the annual Icelandic fall Groundfish Survey on fishvice.shinyapps.io/is-smh - overview in time, lengths and space for all species. For non-natives speakers you also get a chance to improve your Icelandic. All done within the wonderful world of #rstats
Reposted by Einar Hjörleifsson
Struggling with large spatial datasets?
Meet 'chopin', an R package built for parallel processing, making spatial analysis faster and more efficient. Perfect for tackling environmental research challenges
👉 https://s.mtrbio.com/uyonvpzjgt
#Geocomputation #RStats #keeplearning
Meet 'chopin', an R package built for parallel processing, making spatial analysis faster and more efficient. Perfect for tackling environmental research challenges
👉 https://s.mtrbio.com/uyonvpzjgt
#Geocomputation #RStats #keeplearning
December 18, 2024 at 2:30 PM
Struggling with large spatial datasets?
Meet 'chopin', an R package built for parallel processing, making spatial analysis faster and more efficient. Perfect for tackling environmental research challenges
👉 https://s.mtrbio.com/uyonvpzjgt
#Geocomputation #RStats #keeplearning
Meet 'chopin', an R package built for parallel processing, making spatial analysis faster and more efficient. Perfect for tackling environmental research challenges
👉 https://s.mtrbio.com/uyonvpzjgt
#Geocomputation #RStats #keeplearning
Did you know that most if not all analysis and documentation on stock assessment and advice available here: www.hafogvatn.is/en/harvestin... is done in free and open source software?
December 5, 2024 at 8:13 PM
Did you know that most if not all analysis and documentation on stock assessment and advice available here: www.hafogvatn.is/en/harvestin... is done in free and open source software?
Reposted by Einar Hjörleifsson
A while back I created a map of the fisheries footprint in Icelandic waters: veidar.hafogvatn.is
Now working on an update. All done within the wonderful world of #rstats
Now working on an update. All done within the wonderful world of #rstats
November 17, 2024 at 10:13 PM
A while back I created a map of the fisheries footprint in Icelandic waters: veidar.hafogvatn.is
Now working on an update. All done within the wonderful world of #rstats
Now working on an update. All done within the wonderful world of #rstats