#mesocosms
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ucdmarinescience.bsky.social
Katie Brenninger, a @santarosajc.bsky.social student, spent a summer interning in the CHANGE Lab at the Bodega Marine Laboratory, gaining hands-on experience with seagrass mesocosms, new lab technologies, and the challenges of keeping research tanks clean: marinescience.ucdavis.edu/blog/seagras...
A Seagrass Summer
I am a second-year Environmental Science major at Santa Rosa Junior College and will be transferring to UC Santa Cruz this fall to complete my undergraduate degree. I spent my summer at the Bodega Mar...
marinescience.ucdavis.edu
October 2, 2025 at 4:03 PM
umeaunimarine.bsky.social
Huge welcome to Gabriela Perna, from University of Edinburgh! Together with Prof. Sinéad Collins, she examines how light levels affect the survival and growth of #diatoms in artificial sea-ice vs. water, using small ice #mesocosms. 🧪🦑🌊❄️

@umeauniversitet.bsky.social @edinburghuni.bsky.social #UMF
Sinéad Collins and Gabriela Perna in laboratory at Umeå Marine Sciences Centre.
September 22, 2025 at 12:01 PM
mattmccormack1.bsky.social
Excited to start my PhD at @bristoluni.bsky.social as part of the @ercrefresh.bsky.social project under Penny Johnes, Dan Read (UKCEH) and Martin Genner!

I'll be exploring how key microorganisms utilise and transform dissolved organic matter. Looking forward to starting with the team next week!
Helping the team with mesocosm dosing experiments this summer. Native aquatic snails added to mesocosms to investigate the uptake of DOM. Learning about the experimental setup from James McDonald.
September 15, 2025 at 3:34 PM
obialik.bsky.social
Sustainable oyster farming can be great. If done correctly, it can help mitigate storm surges, but as this study suggests - it's also a powerful carbon removal system. 🧪🌊

Link: www.pnas.org/doi/full/10....
CO2 flux pattern over oyster farming ecosystem. There is a spatial heterogeneity of CO2 fluxes over an entire oyster farming ecosystem: Oyster farming exhibits the function of CO2 efflux compared to adjacent normal sea areas at individual scale. However, at the whole ecosystem scale oyster farming demonstrates a CO2 influx just as showing by our mesocosms, simulating both the farm site area plus the broader area affected by the farmed oysters in coastal sea.
September 12, 2025 at 2:03 PM
jonpuritz.marineevoeco.com
(1/n)
7/29/17

At lab at 0730:

Water chemistry samples (3 per rep)
Density samples
Filter larvae from mesocosms
Flash-freeze larvae
November 17, 2024 at 1:16 AM
cznews.bsky.social
"Mesocosms have a pedigree stretching to the 1950s, when ecologists flooded cattle tanks to mimic lakes. For decades, though, most climate-warming experiments simply heated the whole water column a couple of degrees and watched algae bloom faster." 🌐🧪
Cylinders of Tomorrow: How DIY Mesocosms Let Scientists Sculpt Miniature Climates
The room hums like a distant engine.
open.substack.com
June 16, 2025 at 3:43 PM
ibartomeus.bsky.social
Honored to have this paper selected by ASN as the best paper of 2024. Amazingly led by @lili-buche.bsky.social with my long-term mate of adventures @oscar-godoy.bsky.social We had some good fun building the mesocosms!
March 17, 2025 at 6:06 PM
emmaschubert.bsky.social
Goldfish generate turbidity (cloudiness) by suspending sediment when they feed. This decreases sunlight penetration in the water and negatively impacts native macrophytes and visual predators. I use a turbidimeter to accurately determine the turbidity in my mesocosms from water samples.
June 28, 2025 at 2:58 PM
pennyjohnes.bsky.social
Our final NERC QUANTUM isotope dosing experiment is now underway! Exciting science. Looking forward to comparing May results with Nov expt outcomes, and discovering the impacts of warming effects to RCP 6.0 on stream processing and biotic uptake of livestock-derived DOM as a nutrient resource.🧪🌿🐌💧
Bryophytes and biofilm slides ready for the experiment, and for sampling at 6 x time points over 8 days Adding 13C15N labelled isotopes to our mesocosms Sampling gaseous phase emissions from the mesocosms at 6 hr time point. We did try to avoid sampling at night, but setting up and checking motors/paddles etc always takes longer than you hope. Bryophute sample 6 hr after dosing with 13C15N labelled glucosamine.
May 13, 2025 at 1:57 PM
annaschmidt.bsky.social
@dvm-uvm.bsky.social @rosaliebruel.bsky.social @aquacosm-ecr.bsky.social #Freshwater #Zooplankton #DVM #DHM #Planktivory #Hypoxia #Chaoborus #Mesocosms
December 16, 2024 at 4:14 PM
pdejong.bsky.social
Entering Week 9 of respiration measurements in our earthworm mesocosms.
🪱🌱🌲🧪
October 12, 2023 at 8:43 AM
samuelmacaulay.bsky.social
10/10 I hope the ideas we share here will help to inspire new, solution-oriented research directions and provoke further thoughtful discussions among those looking to use mesocosm systems in their work!

#ecology #globalchange #mesocosms #solutions #restoration #connectivity #freshwater #marine
February 11, 2025 at 6:15 PM
phagepapers.bsky.social
Transcriptional profiles of Microcystis reveal gene expression shifts that promote bloom persistence in in situ mesocosms.

DOI: 10.1128/spectrum.01369-24

https://pubmed.ncbi.nlm.nih.gov/39555930/
Transcriptional profiles of Microcystis reveal gene expression shifts that promote bloom persistence in in situ mesocosms - PubMed
Harmful algal blooms caused by cyanobacteria threaten aquatic ecosystems, the economy, and human health. Previous work has tried to identify the mechanisms that allow blooms to form, focusing on the role of nutrients. However, little is known about how introduced nutrients influence gene expression …
pubmed.ncbi.nlm.nih.gov
November 19, 2024 at 12:36 PM
jcamthrash.bsky.social
Nutrient inputs in mesocosms of an oligotrophic lake fail to sustain an algal bloom esajournals.onlinelibrary.wiley.com/doi/10.1002/... #jcampubs
February 19, 2025 at 2:04 PM
jaimepalter.bsky.social
Hypothetically, #3 could be counted in an NDC but not anytime soon. On an ideation/implementation scale of 1-10, where 1 is a fever dream and 10 is a billion tons of mCDR a year, I'd say mCDR is at about 3 right now. It's being tested in labs, mesocosms, and small field deployments now.
November 22, 2024 at 1:42 PM
goulven-laruelle.bsky.social
Nice paper from a young colleague of mine!

It studies, in mesocosms, the influence of large sediment loads, which briefly reset microbial life and how fast the systems returns to normal: roughly 3 weeks for oxygen, and 1 week for nitrogen.

www.sciencedirect.com/science/arti...
Effects of frequent or massive sediment supplies on sediment redox dynamics: a microcosm simulation
Marine coastal environments are subject to depositional events generated for instance by turbidites, spring tides and estuarine floods. Biogeochemical…
www.sciencedirect.com
August 6, 2025 at 11:43 AM
martinhartmann.bsky.social
Drought-induced tree mortality in Scots pine mesocosms promotes changes in soil microbial communities and trophic groups. www.sciencedirect.com/science/arti...
Drought-induced tree mortality in Scots pine mesocosms promotes changes in soil microbial communitie...
Increased tree mortality related to water limitation is documented for various species at different sites globally. Nevertheless, our understanding of…
www.sciencedirect.com
November 21, 2023 at 1:40 PM
ercrefresh.bsky.social
Follow the team @ercrefresh.bsky.social as we investigate controls on rates & pathways of DOM uptake into stream foodwebs. This week we ran the first of 3 experiments exploring if environmental character, warming or velocity affect uptake this week. Chalk stream first, then clay stream, then peat! 🧪
Meet the team! Drs Charlotte Briddon and @jameslmcdonald.bsky.social, working on setting up the motors to drive the paddles in our warming (bubble wrap jackets, elevated higher in the water column) and warming plus high (double the rpm) flow velocity experiment. Further along, Dr @acastrocastellon.bsky.social from our @ukri.org NERC QUANTUM programme is setting up the jars for our ambient temperature with stirring experiment in this classic chalk stream. The catchment comprises calcium carbonate rich chalk, flows to the river are dominated by groundwater and deeper throughflow, and the stream ecosystem supports Ranunculus spp. (water crowfoot), Callitriche spp. (starwort) and Rorippa nasturtium-aquaticum (watercress) along with a native brown trout population. How will biotic response rates to isotope dosing of 13C15N labelled compounds in this alkaline, and gin-clear stream contrast with those in a more turbid clay stream (experiment 2) and dystrophic peatland stream (experiment 3). We look forward to finding out! Each jar contains biofilms cultivated in the stream prior to each experiment, and mosses (Fontinalis antipyretica) which are ubiquitous in UK rivers and streams. Their lack of rooting structure makes them ideal for these isotope dosing experiments. Later on in the programme we will introduce benthic chambers and endemic higher plants, but these 6L mesocosms are too small to accommodate them. The final set up, the evening before the first sampling at time point 0. We then sample at 1.5 h, 6 h, 24 h, 48 h, 96 h (at which point we introduce snails to graze off the biofilms and bryophytes) and 192 h. So many moving parts to go wrong, and each jar 9x 3 replicates) receives a different dual-labelled DOM compound at 1% enrichment of N over background. These are not enrichment nor depletion experiments (those come later in this 5 year ERC Advanced Grant programme, awarded to @penny.johnes.bsky.social ) and funded via @ukri.org under the Horizon Guarantee. The PI @penny.johnes.bsky.social having rather too good a time. Science is always fun, but also often quite challenging when we are conducting experiments under environmental conditions. It's always a relief when the kit is in and working and the design is correct!
July 9, 2025 at 3:24 PM
josemaferca.bsky.social
🚨🚨 New paper from my PhD is out in Freshwater Biology!
We tracked macroinvertebrate dispersal using stable isotopes and mesocosms — showing how disconnected pools act as refuges and stepping stones for community recovery.
🔗 doi.org/10.1111/fwb....

👇👇
October 16, 2025 at 5:45 PM
evolletters.bsky.social
How predictably does complex trait adaptation proceed over space and time in wild populations?
doi.org/10.1093/evle...

Now in @evolletters.bsky.social by @skylerberardi.bsky.social, @paulrschmidt.bsky.social et al.

📷: Dr. Rush Dhillon
Figure showing the experimental overview as a graphic. Remaining alt text taken from the figure caption in the paper: (A) we sampled flies from six wild orchard populations ranging from Homestead, FL, to Lancaster, MA, and established isofemale lines in the laboratory. (B) We returned to a focal orchard in Media, PA, at early- and late-season timepoints and collected flies to capture evolutionary patterns following winter and summer conditions. (C) We then seeded outdoor mesocosms (N = 9) with an outbred population originating from early-season collections in Media, PA, and sampled flies at the end of summer (mid-season) and fall (late-season) to determine if seasonal patterns are recapitulated in experimental populations controlled for migration, drift, and cryptic population structure. (D) Across each wild or experimental context, we sampled flies, established lines in the lab, completed common garden treatment to remove environmental effects, and scored females for abdominal pigmentation. We also conducted pooled DNA sequencing on additional flies sampled from each population to map genomic patterns for candidate pigmentation SNPs.
July 31, 2025 at 6:35 PM
embrcspain.bsky.social
🧪 The experiment uses ECIMAT's #mesocosms, a unique European infrastructure with 12 pelagic and intertidal tanks, real-time environmental monitoring, and the capacity to simulate natural conditions such as heatwaves or tides.
August 4, 2025 at 8:54 AM
biorxiv-ecology.bsky.social
Herbivory can increase plant fitness via reduced interspecific competition. Evidence from models and mesocosms https://www.biorxiv.org/content/10.1101/2024.04.20.589392v1
Herbivory can increase plant fitness via reduced interspecific competition. Evidence from models and mesocosms https://www.biorxiv.org/content/10.1101/2024.04.20.589392v1
Herbivores are generally considered to reduce plant fitness. However, as in natural communities herb
www.biorxiv.org
April 22, 2024 at 8:31 PM
anjana7.bsky.social
Looking at zooplankton, from my salamander mesocosms, under the microscope today!
January 31, 2025 at 12:17 AM
biologybennett.bsky.social
Setting up mesocosms with IB Bio Jrs...will follow for 2-3 months to see changes. @atherton_high
November 18, 2024 at 1:30 PM
smith8272.bsky.social
Giulia Faucher: Data from mesocosms with OAE manipulation treatments show that the timing of phytoplankton blooms is significantly delayed at extreme high alkalinity #LiegeOcean25
May 27, 2025 at 2:24 PM