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Peri Coleman

@pericoleman.bsky.social
4.5K followers 951 following 252 posts

Botanist, Quaker, grandmother, friend of dogs, and lover of all things saltmarsh & salt lake.

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Peri Coleman @pericoleman.bsky.social · 05/09/2026
t’s been published! What a journey. 85 lakes. 64 authors. Alfred and Egor, you are heroes. What an effort! Herding authors makes cat herding look simple! www.nature.com/articles/s41...?
nature.com
The overlooked conservation values of saline lakes
Nature Communications - Saline lakes are highly threatened ecosystems, yet they receive little attention from both the conservation community and the general public. This study demonstrates why...
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Peri Coleman @pericoleman.bsky.social · 26/08/2026
Great news! The Shifting Salts project offers restoration options that may restore, the damaged coastlines of Barker Inlet. We ask SA government to consider the Shifting Salts options & collaborate with stakeholders to develop and implement a plan for the saltfields. Please sign! c.org/pf6ytjPKfh
c.org
Sign the Petition
SUPPORT DRY CREEK SALTFIELDS RESTORATION
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Prof. Eliot Jacobson @climatecasino.net · 17/06/2026
Breaking News! y-axis alert! Nino 3.4 sea surface temperatures are now more than 3 standard deviations above the 1991-2020 mean, forcing an extension of the y-axis up to 3.5σ. And that line way at the bottom? That's 1988.
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Waylon & Elephant Journal @elephantjournal.com · 01/05/2026
"[Atlas Shrugged] is not a book to be tossed aside lightly. It should be thrown with great force." ~ Dorothy Parker re #aynrand
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Peri Coleman @pericoleman.bsky.social · 10/03/2026
We need to address all the current impacts of the algal bloom, repair our marine habitats and work towards preventing Harmful Algal Blooms into the future (they are increasing in frequency and severity)
Restore marine ecosystems to increase resilienceHonesty and monitoring of the health effects of the algal bloomMajor carbon emitters such as the fossil fuel giants need to contribute to monitoring, mitigation and recoveryVote 1, Independant P, for Tammy Franks and Faith Coleman. Authorised by Tammy Franks, Semaphore
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Peri Coleman @pericoleman.bsky.social · 10/03/2026
South Australians need more science than spin
Our coasts are in crisis 
Harmful algal bloom still occurring, a year onWe need science not spinWe want our fishers and aquaculturalists supported
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Peri Coleman @pericoleman.bsky.social · 10/03/2026
Yes… my daughter Faith put her hand up to run with Tammy Franks for a seat in our upper house here in South Australia - the parliamentary house of (peer) review… Science not spin. Transparency. Integrity. A frank and fearless public service.
Asks voters in South Australia to vote for independents Tammy Franks and Faith Coleman (column P on the ballot for the Upper House). They say they will fight for our coasts and our futures
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Peri Coleman @pericoleman.bsky.social · 22/11/2025
“We were obviously never going to do anything about this until it’s way too late”
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Peri Coleman @pericoleman.bsky.social · 04/11/2025
Finally, the definitive paper on the composition of the South Australian HAB has hit the preprint servers. It’s already been formally peer-reviewed. Sit down with a cuppa and have a solid read of this sobering paper. www.biorxiv.org/content/10.1...
biorxiv.org
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Peri Coleman @pericoleman.bsky.social · 31/08/2025
Latest counts of Karenia in sheltered areas of the northern Yorke Peninsula are depressing. The HAB continues to growl along. 4,778 cells/mL (4.8 million cells per litre) at the Wills Creek boat ramp at Price.
A really wide Karenia microalgae cell, stained yellow with Lugol’s media. Its nucleus is a round red patch, centrally located in the cell. The cell is 40 microns wide and 27 microns tall, with a waistline marking the top quadrant of the cell, and a distinct node on its apexAn orange, Lugol’s-stained Gyrodinium dinoflagellate. Long, pointy, and built for speed, this microalgae is nearly 70 microns wide longGuinardia flaccida is a chain-forming centric diatom with unique star-shaped chloroplasts dotted across its cylindrical valves.
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Bluesky @bsky.app · 22/08/2025
Unfortunately, Bluesky is unavailable in Mississippi right now, due to a new state law that requires age verification for all users. While intended for child safety, we think this law poses broader challenges & creates significant barriers that limit free speech & harm smaller platforms like ours.
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Peri Coleman @pericoleman.bsky.social · 26/07/2025
“Sea-sick” is a superb 20 minute documentary made by Surfers 4 Climate, about the HAB (harmful algal bloom) affecting 4.500 square kilometers of South Australia’s coastal waters. surfersforclimate.org.au/pages/sea-si...
surfersforclimate.org.au
Sea Sick
South Australia’s coastline is experiencing a crisis in slow-motion. A massive algal bloom has choked the ocean, silenced surf breaks, and left fishing boats tied to the dock. Sea creatures - from sti...
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Peri Coleman @pericoleman.bsky.social · 26/07/2025
Grab a cuppa, sit down with this report, and get up to speed with South Australia’s marine Harmful Algal Bloom www.croakey.org/health-exper...
croakey.org
Experts sound health alarm on algal bloom crisis, calling for climate action and comprehensive responses
The algal bloom crisis across South Australia should be treated as a disaster for health and a clear warning about
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Peri Coleman @pericoleman.bsky.social · 20/07/2025
Are you following the toxic algal bloom disaster afflicting South Australia? Locals with microscopes are starting to pop up records of marine life mortalities and plankton records onto iNaturalist. check out the plankton records at inaturalist.ala.org.au/projects/phy...
inaturalist.ala.org.au
Phytoplankton of South Australia
Collect data on phytoplankton in South Australia, especially with regard to the 2025 algal bloom. However, it will be beneficial to have a local resource for all our phytoplankton going into the futur...
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Prof. Eliot Jacobson @climatecasino.net · 10/07/2025
Here is an updated graphic showing the 365-day running mean for the global surface temperature anomaly over the 1850-1900 IPCC pre-industrial baseline from 1941 to July 8, 2025. I've highlighted a few key moments in the planet's recent history.
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Peri Coleman @pericoleman.bsky.social · 10/07/2025
Plankton samples settling. Recent counts have included the coast from Ardrossan to Price on the Yorke Peninsula, West Lakes and Garden Island in northern Adelaide, and the Onkaparinga estuary. That Karenia mikimotoi sure gets around.
A lab bench with three sample bottles and three measuring cylinders. The water samples in the cylinders is honey gold, stained with Lugol’s media to settle the microalgae for counting
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Peri Coleman @pericoleman.bsky.social · 09/06/2025
There is a new, downloadable leaflet on what photographs will make your iNaturalist observations of Shrubby samphire even more valuable. You can download the leaflet from the 'Shrubby samphire and climate change' project on iNaturalist, at www.inaturalist.org/projects/shr...
inaturalist.org
New, downloadable leaflet on photographing Shrubby samphires for iNaturalist!
The citizen science database iNaturalist (www.inaturalist.org) has an increasing number of observations of the Shrubby samphire. Where these records include both a habitat photograph and detailed phot...
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Peri Coleman @pericoleman.bsky.social · 08/06/2025
Sheaoak Flat has a fascinating soup of organisms in the near shore at the moment - in between the mass of organic debris partially dissolved in the water post-storm that blew some of the bloom away… Here is a cure copepod to brighten up your day
Tiny microcrustacean copepod, about 1mm long, carrying two egg sacks tucked between its legs and lower abdomen
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Peri Coleman @pericoleman.bsky.social · 07/06/2025
Yesterday Jo from the ABC rang to talk about my being added to the Conservation SA ‘Hall of Fame’ but we rapidly diverted into a chat about mangroves and saltmarshes - as you do! The chat starts early in the show, at 7:35 minutes in, and runs to 15:58 minutes. www.abc.net.au/listen/progr...
abc.net.au
Afternoons - ABC listen
An intriguing blend of local news, entertainment and fun, Afternoons delights.
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Dr Noor Bari @njbbari3.bsky.social · 01/06/2025
“We are all going to die.” True. But not an advantageous approach to life… and is almost always used instead of the true intended statement which is… “You are going to die, and I can’t be bothered to save you.”
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Peri Coleman @pericoleman.bsky.social · 25/05/2025
It’s the name. It makes me smile. This is a tintinnid. A type of protozoan that gallops around in a wine glass. Normally not yellow - fell in a puddle of iodine stain on my microscope slide.
A microscope slide with scale bar, with a tintinnid in focus. A yellow-stained protozoan that lives in a clear wineglass shaped ‘lorica’ or ‘test’
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Peri Coleman @pericoleman.bsky.social · 24/05/2025
If you’ve wondered why I’ve been a bit quiet, it has been because plankton counts are the best way to warn folk when “the bloom” is about to hit their little stretch of the coast… so I’ve been counting. m.youtube.com/watch?v=2os3...
m.youtube.com
An ecological disaster has been unfolding on Australia's coast I ABC NEWS
YouTube video by ABC News (Australia)
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Peri Coleman @pericoleman.bsky.social · 13/05/2025
@climatecasino.net you may be able to cast some illumination on this southern summer-autumn’s marine heatwaves in Australia. Do any interesting stats on magnitude or frequency or longevity pop out of the data? I’m drowning in plankton counts of blooming toxic microalgae here
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Peri Coleman @pericoleman.bsky.social · 11/05/2025
Messing about with live plankton samples from Stansbury on the Yorke Peninsula. This part of Oyster Bay was currently free of the large Karenia mikimotoi bloom, but had some other cute microplankton to chase around under the microscope
A Tripos dinoflagellate with a long apical horn and three hypoconical hornsSmall plankton that looks like a protozoan because it doesn’t have chloroplasts, but is actually a dinoflagellate plankton called Pronoctiluca
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Peri Coleman @pericoleman.bsky.social · 27/04/2025
For those following the SA algal bloom, news from Faith today about a potential species flip: “It is good to see that a bloom species swap is occurring at Middleton Beach, with the Karenia mikimotoi cell count dropping and numbers of Asterionellopsis diatoms taking their place in my sample today.”
View down a microscope. The circular lit area is marked with the grid lines of a haemocytometer, and grouped stars and spiral chains of the diatom Asterionellopsis  are visible
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Peri Coleman @pericoleman.bsky.social · 23/04/2025
Well you’ve heard me banging on that heat is energy and a warmer climate is a more energetic climate. This new paper on hot-cold weather ‘flips’ quantifies that. It’s not a pretty picture. rdcu.be/eiVL1
rdcu.be
Rapid flips between warm and cold extremes in a warming world
Nature Communications - Rapid temperature flips between hot and cold extremes will become more frequent, more intense, and more rapid globally by the end of the twenty-first century, which is...
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Peri Coleman @pericoleman.bsky.social · 04/04/2025
British Quakers have been warning about the loss of the right to protest for the last few years, as more and more legislation has been passed, restricting that right. www.quaker.org.uk/news-and-eve...
quaker.org.uk
Quakers call for rights to be restored after police raid on Westminster Meeting House
The police raid on Westminster Quaker meeting house last Thursday was a massively disproportionate response to the legitimate concerns of UK citizens.
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Integral Answers @integralanswers.bsky.social · 27/03/2025
15/ We remember Rosalind Franklin not just as the “woman behind Photo 51”— But as a brilliant, independent scientist who changed biology forever. Her story is science. And justice. And courage. #WomenInSTEM #HistoryOfScience #RosalindFranklin
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Peri Coleman @pericoleman.bsky.social · 25/03/2025
About the Fleurieau Peninsula bloom - it looks like Karenia mikimotoi. As always, remember the old adage about not swimming in turbid or coloured waters. If you do get wet, rinse in cool freshwater. If the aerosols irritate your lungs, vacate the area or mask (n95).
Karenia mikimotoi a yellowish dinoflagellate shaped like a dumb bell
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Integral Answers @integralanswers.bsky.social · 11/03/2025
“The idea that ‘natural immunity’ is better sounds great—until you remember that ‘natural selection’ isn’t exactly a prize you want to win.”
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Peri Coleman @pericoleman.bsky.social · 11/03/2025
This…
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Peri Coleman @pericoleman.bsky.social · 10/03/2025
Tawni and Mark have been counting the leaves of baby mangroves again. The numbers go up and down with the weather, but that smile on Tawni's face tells the tale! The slow upward overall trend continues 🙂
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Andrew Hipp @andrewlhipp.bsky.social · 08/03/2025
"...regularly visiting plants & animals in your yard, a nearby park, or abandoned field down the street... [can] reorient your heart & mind in a way that other efforts cannot. This small step may be the most important one you can take, for yourself & the planet." Bravo @theresacrimmins.bsky.social!
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Dean Nicolle @deannicolle1.bsky.social · 08/03/2025
ANOTHER eucalypt species just listed as Critically Endangered: Eucalyptus scopulorum (Peregrine Point ironbark), known in the wild from a single site in northern NSW (threatened by drying climate and fire). The species grows well in cultivation at Currency Creek Arboretum in SA.
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Peri Coleman @pericoleman.bsky.social · 26/02/2025
Must be the day for papers on salt lakes, samphires and all the things I love. Kristin Monie and her mates have just published this: www.researchgate.net/publication/...
researchgate.net
(PDF) A review of threatened and poorly known samphires in Australia: their distribution, observed environmental threats and ecological responses
PDF | Australia is home to a rich assemblage of samphires (Tecticornia and Salicornia spp.) which are largely endemic, inhabiting saline and semi-saline... | Find, read and cite all the research you n...
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Peri Coleman @pericoleman.bsky.social · 26/02/2025
Floating gardens. I’ve seen some beauties along the canals in Britain, and even some attempts here in SA (confounded by the terrible lack of riparian habitat meaning the islands get stripped by birds before establishing). www.linkedin.com/posts/dr-cyr...
linkedin.com
🅳🆁 Cყɾυʂ Rαȥα Mιɾȥα 💠 on LinkedIn: #urbanwaterwayrestoration #floatingecoparkinnovation… | 20 comments
🌊 From Toxic Waterway to the World's First Floating Eco-Park: A Revolutionary Urban Renewal Project 🌿 💰 A $1.4M Eco-Innovation Transforming Dead Industrial… | 20 comments on LinkedIn
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Peri Coleman @pericoleman.bsky.social · 26/02/2025
Well, the preprint review stage of our recent paper “The overlooked conservation value and ecosystem services of saline lakes” is up on ResearchSquare, for review prior to possiblr publication in Nature Portfolio. Your engagement is welcome! www.researchsquare.com/article/rs-5...
researchsquare.com
The overlooked conservation value and ecosystem services of saline lakes
Saline lakes are hypersensitive to changes in their water balance and therefore show amplified responses to climatic and land-use changes in their catchment. However, despite the resulting, often dram...
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Peri Coleman @pericoleman.bsky.social · 24/02/2025
People like Tim help turn the massive black box of digital data into something researchers like me can interrogate, without needing to be computer programmers ourselves. So we get to focus on our questions and areas of expertise. I am disappointed to hear NLA has closed down his API access.
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Eldritch kcarruthers @kcar.me · 22/02/2025
Any nation that is dependent on Starlink for military comms should be building sovereign capability. Don’t want to become a hostage to the whims and bullying from the US.
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Peri Coleman @pericoleman.bsky.social · 11/02/2025
Before Christmas, the following appeared on DEM's website: "DEM has received a revised and updated program for environment protection and rehabilitation (PEPR) for the operation of the Dry Creek Salt Fields which seeks to authorise the re-commencement of commercial salt production.
energymining.sa.gov.au
Dry Creek Salt Field
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Kevin M. Kruse @kevinmkruse.bsky.social · 09/02/2025
Whenever you hear someone sneer about scientific research that seems useless to them — “they’re studying the spit of lizards?!” — remind them that’s exactly how we got Ozempic. globalnews.ca/news/9793403...
globalnews.ca
How a Canadian scientist and a venomous lizard helped pave the way for Ozempic - National | Globalnews.ca
In 1984, Dr. Daniel Drucker, an endocrinologist from the University of Toronto, discovered a hormone that helped pave the way for popular diabetes drugs such as Ozempic.
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Peri Coleman @pericoleman.bsky.social · 10/02/2025
Fascinating article on using BirdWeather PUCs in conservation in Colombia… www.audubon.org/news/sounds-...
audubon.org
Sounds That Matter: How Passive Acoustic Monitoring Transforms Science and Benefits the Community
Three local partners of the Conserva Aves initiative in Colombia are implementing the training they received during the workshop on Passive Acoustic Monitoring (PAM). PAM is an effective tool for...
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Clare Fieseler, PhD @fieseler.bsky.social · 03/02/2025
I'm a journalist. My profession is the only one named and protected in the U.S. Constitution. Our founding fathers understood that if the press was stifled, their new democracy would not survive. Here's how you can help journalists like me preserve democracy: freedom.press/digisec/blog...
freedom.press
Here’s how to share sensitive leaks with the press
Thinking about securely leaking information to news organizations? This guide will show you how.
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Peri Coleman @pericoleman.bsky.social · 31/01/2025
Well that IS interesting…
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WomenWarriors @womenwarriors.com · 27/01/2025
Then there's this...
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Martin Kelley @martinkelley.com · 21/01/2025
From Layne Mullett of @afsc-org.bsky.social: “Then, as now, those who work for peace and justice were called traitors and impractical idealists. The media treated them alternately as a curiosity or a threat. But they held fast to a simple truth…” #quakers
afsc.org
We are stronger than we think
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Peri Coleman @pericoleman.bsky.social · 20/01/2025
A friend has brought me a new song to sing, for the 26 January. Feel free to share. We need to make a new way. craigmitchell.com.au/make-a-new-w...
craigmitchell.com.au
Make a New Way - Craig Mitchell
Here’s a new song from David MacGregor and myself. The lyrics were prompted by the narrative of John the Baptist in Mark 1, “Prepare the Way”, plus my ongoing reaction to the Voice Referendum in Austr...
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Peri Coleman @pericoleman.bsky.social · 20/01/2025
Comet Atlas is fading fast. Tonight the comet is a blurry haze. I caught an echo of it on my old digital camera. Squint and you may pick it out, right of the cactus, above the tail of my weather station wind vane. But my abiding memory will be the startle of seeing it so clearly, two nights ago.
Silhouetted cactus arms point to the wraithlike blur of comet Atlas as it appears to dive through the purpling last light and into the last orange glow of sunset
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Van Badham @vanbadham.bsky.social · 19/01/2025
Now that Twitter is dead and TikTok is limited, maybe it’s a good opportunity, young persons, to leave your phones and throw parties that old people can’t gatecrash, to build a culture that political parties can’t colonise, and to enjoy new ideas that corporations can’t milk for cash.
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Peri Coleman @pericoleman.bsky.social · 18/01/2025
Watching the tide emptying out of the saltnarsh creek. A while to go before sunset, but the heat is already going out of the day. Deep breaths of wonder.
Under a burning blue sky the low shrubby samphires, khaki green, hug the sinuous bends of the saltmarsh creek. The tide is going out, small whirlpools forming against the stems of the samphires where they stand in the water.
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