John Pinnegar
banner
johnkpinnegar.bsky.social
John Pinnegar
@johnkpinnegar.bsky.social
Director of the Collaborative Centre for Sustainable Use of the Seas (CCSUS) at Cefas and UEA and of the International Marine Climate Change Centre (iMC3).
Reposted by John Pinnegar
In 2025, an explosion of common octopus appeared across the southwest coast of England

Dr. Keith Hiscock, MBA, explains what led to this “octopus bloom”, how it connects to long-term changes in our seas, and what it could mean for the future of UK marine life.

www.youtube.com/watch?v=nR2l...
Southwest Octopus Bloom: Behind the Surge with Keith Hiscock, MBE
YouTube video by The Marine Biological Association
www.youtube.com
October 8, 2025 at 11:15 AM
Reposted by John Pinnegar
Did someone say it's take an octopus to work day?

Brilliant photos from @akwildlifefalmouth showing the extent of the octopus surge in the southwest. This Risso's dolphin seemed to be having fun 🐙
October 6, 2025 at 7:36 AM
Reposted by John Pinnegar
I get that the news cycle is packed right now, but I just heard from a colleague at the Smithsonian that this is fully a GIANT SQUID BEING EATEN BY A SPERM WHALE and it’s possibly the first ever confirmed video according to a friend at NOAA

10 YEAR OLD ME IS LOSING HER MIND (a thread 🧵)
September 24, 2025 at 8:30 PM
Reposted by John Pinnegar
After a brief (ahem) hiatus, the HadCRUT5 global temperature dataset has now been updated to June 2025 by @metoffice.gov.uk @climateuea.bsky.social and @ncas-uk.bsky.social
September 22, 2025 at 5:10 PM
Reposted by John Pinnegar
Great talk on using historical sources to map herring spawning grounds by @georginahunt.bsky.social for @projectfishistory.bsky.social.
September 16, 2025 at 12:55 PM
Reposted by John Pinnegar
🌍🚢🚲 The journey is part of the story!
We’re curious: how did you get to #ICESASC25?

We’re looking for the most sustainable (& maybe surprising!) journey to Klaipeda. Share your travel story & let’s celebrate the many ways our community is reducing its footprint while coming together for science.🌱💙
a large body of water with a sail in the foreground and clouds in the background
ALT: a large body of water with a sail in the foreground and clouds in the background
media.tenor.com
September 16, 2025 at 7:40 AM
Reposted by John Pinnegar
Join us today & Wedn in #ICESASC25 session R, where you can experience the breadth of @icesmarine.bsky.social science: from marine biodiversity & benthic ecology to fish biology & stock assessment to human dimensions - we have it all covered!
@johnkpinnegar.bsky.social @laurauusitalo.bsky.social
September 15, 2025 at 7:06 AM
Reposted by John Pinnegar
🌀📣 “the scientific case for climate liability is closed “ says lead author of NEW Nature study: may be a game changer tracing and attributing climate damages such as from heat waves 🥵 back to emissions from individual fossil fuel companies #ClimateAction #CarbonMajors

www.nature.com/articles/s41...
Systematic attribution of heatwaves to the emissions of carbon majors - Nature
Climate change made 213 historical heatwaves reported over 2000–2023 more likely and more intense, to which each of the 180 carbon majors (fossil fuel and cement producers) substantially contributed.
www.nature.com
September 10, 2025 at 8:22 PM
Reposted by John Pinnegar
MARINElife SURVEY OPPORTUNITY: CEFAS PELTIC RESEARCH CRUISE 2025
Cetic & Irish Seas, Western Channel 2-20 Oct From Falmouth
Meals & cabin provided
Requirements: ENG1 medical certificate & Personal Sea Survival Certificate email tom.brereton@marine-life.org.uk if suitable @theseabirdgroup.bsky.social
August 19, 2025 at 3:25 PM
Reposted by John Pinnegar
An unprecedented marine heatwave in 2023 resulted in the global ocean absorbing significantly less CO₂ than anticipated, according to new research involving our School of Environmental Sciences. 🌊🌡️

Read more 👉: bit.ly/41E7BtQ

#CarbonDioxide #OceanSink #ClimateChange

@ueaenv.bsky.social @ethz.ch
September 4, 2025 at 4:52 PM
Reposted by John Pinnegar
OneBenthic unites seabed data from research, government & industry — incl. offshore wind & marine aggregates.

This collaboration underpins the new BGS Predictive Seabed Sediments (UK) dataset (www.bgs.ac.uk/datasets/bgs...), openly available for science & marine management.

#OneBenthic #OpenData
September 5, 2025 at 7:28 AM
Reposted by John Pinnegar
Meanwhile, back in reality, global ocean heat content just updated through June 2025 and set a new record high. Time to wake up!

Data (anomalies) & methods from www.ncei.noaa.gov/access/globa...
August 31, 2025 at 12:50 AM
Reposted by John Pinnegar
🐟🔥 The sea is warming… and that’s changing what we catch and how much it’s worth.

📊 In the NW Mediterranean, we analyzed 23 years of data to understand how climate change is reshaping fisheries.

#ClimateChange #Fisheries #Mediterranean

@icmcsic.bsky.social 
#LuciaEspasandin
August 25, 2025 at 5:56 PM
Reposted by John Pinnegar
🌍 Climate change is already reshaping Mediterranean fisheries.

📊 With indicators like MTC and MTR, we can anticipate risks and opportunities.

💡 Time to act: science, management, and adaptation.

#FutureOfFisheries #BlueTransformation
August 25, 2025 at 5:56 PM
Reposted by John Pinnegar
A wave train entering into the North Sea, seen by #Sentinel1 on 12 August. I am guessing it's tidal-related, but I have never seen this kind of signal in this region in SAR data before, pretty cool 😎

@jowilliams.bsky.social
August 21, 2025 at 12:02 PM
Reposted by John Pinnegar
Thanks to Oceanographic mag for this article on our new project on the UK #octopus bloom & to Plymouth City Council, Devon County Council & Defra for their financial support
oceanographicmagazine.com/news/extraor... @thembauk.bsky.social @plymbiomarsci.bsky.social @plymuni.bsky.social @pml.ac.uk 🐙
"Extraordinary" investigation into UK octopus bloom launches - Oceanographic
Plymouth and Devon county councils partner with DEFRA to launch investigative study into the cause and consequences of UK octopus bloom
oceanographicmagazine.com
August 16, 2025 at 9:50 AM
Reposted by John Pinnegar
🌊🔥 Deep trouble: New research reveals that #seafloor #MarineHeatwaves could be more than 50% more frequent than at the surface of the ocean - threatening bottom-dwelling species that cannot escape the rising temperatures, with ripple effects across entire ecosystems: pml.ac.uk/news/deep-tr...
Deep trouble – future seafloor marine heatwaves will surpass surface extremes
A new study shows that marine heatwaves on the seafloor could be more than 50% more frequent in future than at the surface of the ocean during hot summer months, a concerning prospect for bottom-dwell
pml.ac.uk
August 19, 2025 at 10:34 AM
Reposted by John Pinnegar
August 13, 2025 at 11:31 AM
I (briefly) appeared on BBC Breakfast and Radio 4 this morning. The UK's seas have had their warmest start to the year since records began, helping to drive dramatic changes in marine life. @CefasGovUK ? www.bbc.co.uk/news/article...
Record warm seas help to bring extraordinary species to UK waters
The UK's seas have had their warmest first seven months of the year on average since records began.
www.bbc.co.uk
August 11, 2025 at 6:09 AM
Reposted by John Pinnegar
#FutureOcean25 was a forward looking + inspiring conference about recovering our oceans. How can science + evidence be better used/integrated to improve policy and outcomes? Really enjoyed discussing this w' Theresa Marteau, @billsutherland.bsky.social@johnkpinnegar.bsky.social + Stuart Green 🐟🦞🐳🌊
July 3, 2025 at 4:18 PM
Reposted by John Pinnegar
🌊 New paper from #Cefas colleagues on climate change, utilising data from #OneBenthic. Dive into their findings and see how #opendata are contributing to important climate research: link.springer.com/article/10.1007/s00227-025-04672-x 🌍🔬 #ClimateChange #MarineScience #CefasResearch
June 20, 2025 at 7:52 AM
Reposted by John Pinnegar
MPA results in a decrease in burrowing brittle stars because of increased predation pressure by flatfish. So food web effects thus override the decrease in mortality of macrofauna caused by the cessation of trawling.

conbio.onlinelibrary.wiley.com/doi/full/10....
April 3, 2025 at 9:25 AM
“While some species may expand into new areas, others face an uncertain future. To help species adapt, we need to create habitat corridors, closely monitor their movements, and ensure fisheries and conservation management measures evolve with the changing climate.” www.bbc.co.uk/news/article...
Sharks and oysters set to thrive in warmer UK waters
Climate change will benefit basking sharks in the UK but creatures like the longest living animal may struggle.
www.bbc.co.uk
June 18, 2025 at 4:00 PM
See our latest paper on "Climate change resilience of vulnerable marine species in northwest Europe" - this has been prompting quite a bit of media coverage today. link.springer.com/article/10.1...
Climate change resilience of vulnerable marine species in northwest Europe - Marine Biology
Climate change is impacting marine organisms directly through its influence on suitable habitats. We use an ensemble of five ecological niche models to determine how climate change could affect the di...
link.springer.com
June 18, 2025 at 3:54 PM