Changing Ocean Biological Systems working group
@scor-cobs.bsky.social
1.1K followers 1.2K following 24 posts
How do interacting drivers/stressors shape the oceans? Sharing new research, workshops, and tools for experimental design, data analysis, mathematical models, and more. https://scor149-ocean.com https://meddle-scor149.org/
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scor-cobs.bsky.social
Hello all! We're a working group studying how interacting drivers (or "multiple stressors") like temperature, acidification, etc. shape marine life. Follow us for new research and workshops, as well as tools to improve experimental design, data analysis, mathematical models, and more. 🌊
scor-cobs.bsky.social
🌊
chrisecornwall.bsky.social
Excited to announce that we will be hosting the 6th International Symposium on Oceans in a High CO2 World October 12 to 16th in Wellington at the Tākina event center! This conference will bring together marine climate change scientists from multiple disciplines. Save the date!
scor-cobs.bsky.social
Enjoyed teaching this excellent group of young 🌊 oceanographers experimental design and data analysis!

Our teaching team was @christinamcgraw.bsky.social, Peter Dillingham, Sam Dupont, @sineadcollins.bsky.social and @mridulkthomas.bsky.social

Reach out if you'd be interested in these workshops!
Participants and teachers for a workshop on experimental design at the BECoME 2025 conference
scor-cobs.bsky.social
We will be teaching two free training courses at the BECoME-2025 conference in Hong Kong next month🌊

Course 1: Designing Multiple-Driver Experiments
Course 2: Data Analysis for Multiple-Driver Experiments

Join us! Apply through the conference website:
www.become2025.com/registration
Training Course 1: Designing Multiple-Driver Experiments

BECoMe-2025 and SCOR’s Changing Ocean Biological Systems infrastructure group are hosting a free training course for researchers interested in learning how to design and carry out multiple-driver (i.e., multiple stressor) experiments that measure responses in microbes, plants, or animals. This training course will guide participants in using the MEDDLE resources to:

•	Define a relevant research question
•	Identify key drivers, biological traits, and responses
•	Select an appropriate experimental design
•	Develop a statistical analysis plan

Training Course Details

Time &Date: 9:30 am - 4:30 pm, 18 August 2025 (Monday)
Location: City University of Hong Kong
Participant Limit: 24 researchers (first-come, first-served)
Eligibility: Participants should have experience in designing and conducting single-driver experiments that study biotic responses (e.g. marine warming, ocean acidification). 

Conveners: Christina McGraw, Sam Dupont, Sinéad Collins, Mridul K. Thomas, Peter Dillingham Training Course 2: Data Analysis for Multiple-Driver Experiments

Researchers work hard to conduct interesting and challenging multi-driver experiments, but are often unaware of how best to analyse their data to take maximum advantage of these experiments. In this training course, participants will:

•	Learn some of the common statistical challenges that appear in multi-driver experiments and how to solve them
•	Work through an example R vignette for a multi-driver experiment
•	Simulate an example dataset based on a proposed experiment
•	Perform an appropriate analysis and visualise and interpret its output using “literate programming” via R markdown   

Training Course Details

Time &Date:  9:30 am - 1:00 pm, 22 August 2025 (Friday)
Location: City University of Hong Kong
Participant Limit: 12 researchers (first-come, first-served)
Eligibility: Attendance at Training Course 1 (Designing Multiple-Driver Experiments) is required, as Training Course 2 builds directly on the concepts developed in the first training course. Participants should have experience with R and good knowledge of regression. Strong Python skills may also be considered, but Training Course 2 will be conducted using R.

Conveners: Peter Dillingham, Mridul K. Thomas, Sinéad Collins, Christina McGraw
Reposted by Changing Ocean Biological Systems working group
chrisecornwall.bsky.social
Check out some snaps from our recent MEDDLE workshop at #ITRS Brest, France on experimental design. Great participants! @scor-cobs.bsky.social
scor-cobs.bsky.social
We've written tutorials in R on how to analyse your experimental data. This includes how your experiment & analyses can be used to answer scientific questions and provide input into mathematical models.

bsky.app/profile/scor...
scor-cobs.bsky.social
Ever wondered how to analyse your experimental data? 🌊🧪🌍

We’ve developed a series of tutorials in R to guide you through analysing & visualising data from single & multiple driver experiments.

Beginners and experts, we've got something for all of you.

Please share!

meddle-scor149.org/vignettes/
Vignettes - Meddle
The MEDDLE data analysis tutorials illustrate statistical approaches for single and multiple driver experiments. The tutorials are not meant as an exhaustive list, nor do they replace formal statistic...
meddle-scor149.org
scor-cobs.bsky.social
Feedback welcome! We plan to update these, and to add more in the future.
scor-cobs.bsky.social
7. Model-averaging, by Peter Dillingham:

Explore how model-averaging enhances the analysis of multi-driver marine experiments with nested and crossed designs, using Arthrocardia under future ocean conditions as a case study:

nzoac.nz/s/Model-aver....
Model-averaging for experiments
nzoac.nz
scor-cobs.bsky.social
6. Multiple driver response surfaces, by @mridulkthomas.bsky.social and @sineadcollins.bsky.social

Learn 3 ways to analyse data from a temperature x nutrients response surface experiment, and use the output to understand where in the oceans the species does well.

nzoac.nz/s/Response_s...
Fitting a response surface to data from multiple-driver experiments
nzoac.nz
scor-cobs.bsky.social
5. Single-driver response curves, by @mridulkthomas.bsky.social and @sineadcollins.bsky.social

Learn how to fit a temperature response curve to a simulated phytoplankton growth rate experiment. Then use the curve to learn about how the species performs across space & time.

nzoac.nz/s/Single_dri...
Fitting a response curve (reaction norm) to data from single-driver experiments
nzoac.nz
scor-cobs.bsky.social
4. Time-response variables, by Sam Dupont, Peter Dillingham & christinamcgraw.bsky.social

Dive into modelling time-response data with R, using a sea urchin experiment to explore how environmental factors shape growth over time:

nzoac.nz/s/Time_respo...
christinamcgraw.bsky.social
christinamcgraw.bsky.social
scor-cobs.bsky.social
3. Blocking in time, by Steeve Comeau and @chrisecornwall.bsky.social

Learn how to estimate the effects of two drivers on a response when your experiment is ‘blocked’ i.e. experimental units grouped in time, often because it’s not feasible to do all at once.

nzoac.nz/s/Blocking_i...
Blocking in time
nzoac.nz
scor-cobs.bsky.social
2. Analysing scenarios, by Steeve Comeau and @chrisecornwall.bsky.social

Learn how to estimate the effects of two drivers on a response when your experimental treatments are designed to reflect future climate scenarios.

nzoac.nz/s/Scenario_a...
Scenario approach
nzoac.nz
scor-cobs.bsky.social
1. Statistical power, by Peter Dillingham:

Explore how to use R's built-in functions and simulations to assess the statistical power of a study on sea urchin growth under changing ocean conditions.

nzoac.nz/s/Power-vign...
Power calculation using built-in R functions or via simulation
nzoac.nz
scor-cobs.bsky.social
Ever wondered how to analyse your experimental data? 🌊🧪🌍

We’ve developed a series of tutorials in R to guide you through analysing & visualising data from single & multiple driver experiments.

Beginners and experts, we've got something for all of you.

Please share!

meddle-scor149.org/vignettes/
Vignettes - Meddle
The MEDDLE data analysis tutorials illustrate statistical approaches for single and multiple driver experiments. The tutorials are not meant as an exhaustive list, nor do they replace formal statistic...
meddle-scor149.org
scor-cobs.bsky.social
We have a few slots free in our experimental design workshop at the International Temperate Reefs Symposium on June 30th in Brest, France 🌊

If you're attending the conference and are interested in honing your skills in climate change research/design, please sign up!

itrs-home.org/designing-mu...
Designing multiple driver experiments – ITRS 2025
The MEDDLE resources were developed to help researchers design and carry out tractable, intercomparable multiple driver experiments. In this workshop, participants will learn how to use these…
itrs-home.org
scor-cobs.bsky.social
We are excited to host a virtual workshop about how to design & conduct multiple-driver experiments for Western Indian Ocean Marine Science Association researchers.

blog.wiomsa.net/2024/12/11/v...

Applications due 23 December! Contact @christinamcgraw.bsky.social for more information.

🌊
blog.wiomsa.net
scor-cobs.bsky.social
And Jason Hall-Spencer was at COP29, sharing insights on why the ocean is important for our future climate and therefore ongoing climate negotiations.

www.linkedin.com/posts/plymou...
Jason Hall-Spencer at COP29
scor-cobs.bsky.social
Several of our members contributed to a couple of international meetings recently:

The Sixth International Workshop on Bridging the Gap Between Ocean Acidification Impacts and Economic Valuation in Monaco, organised by the Centre Scientifique de Monaco and the IAEA.
Photo of COBS members and others at the Sixth International Workshop on Bridging the Gap Between Ocean Acidification Impacts and Economic Valuation in Monaco. Photo of COBS members and others at the Sixth International Workshop on Bridging the Gap Between Ocean Acidification Impacts and Economic Valuation in Monaco.
scor-cobs.bsky.social
We are leading workshops on designing multiple driver experiments, at upcoming seaweed and temperate reef conferences 🌊
chrisecornwall.bsky.social
This is teaching part of some of the material put together by @scor-cobs.bsky.social members. Should be good! We will also run one at ITRS in France too
chrisecornwall.bsky.social
If you have not registered for the 2025 International Seaweed Symposium, check out our workshop on experimental design: iss25.com/workshops/ If you have registered already before our workshop was online, flick me a message.
scor-cobs.bsky.social
Thank you, and likewise! We are of course very interested in the tropics too, and had a meeting about coral reefs this past summer as well.
scor-cobs.bsky.social
Thanks for this, David. Could you add us to the list as well?
scor-cobs.bsky.social
Hello all! We're a working group studying how interacting drivers (or "multiple stressors") like temperature, acidification, etc. shape marine life. Follow us for new research and workshops, as well as tools to improve experimental design, data analysis, mathematical models, and more. 🌊
scor-cobs.bsky.social
Hi David - could you please add us to the feed? Thanks!