Limnoseries Lecture April 2026
2026-04-13 15:00 - 15:50 UTC
The next GLEON GSA Limnoseries will take place on April 13 at 15:00 UTC (50min duration):
When Science Becomes a Skillset: Building a Career from Ecology, Theory, and Data
Presented by Diego Pujoni
What may happen when a scientist steps outside academia and begins working with private companies? In this talk I intend to show how scientific training has become a powerful toolkit for solving problems. Skills such as design of experiments, inference, interpretation, and communication are essential in any field. In addition, everywhere, we will have to deal with shorter deadlines, different expectations, and the constant need to balance ethics with real-world constraints without compromising rigor. Ultimately, the talk argues that thinking like a scientist is a competitive advantage wherever decisions depend on evidence. I hope to share nice tips to help young scientists shape their own career, expanding opportunities beyond a single track.
Please sign up for this lecture by April 10. The Zoom link required for the lecture will be sent to those who have registered.
We hope to see you there!
GLEON Student Association (GSA) workshop sub-committee
Registration is now closed, but a recording can be viewed here.

GPA Workshop April 2026
2026-04-28 15:00 - 16:00
The first GPA workshop will take place on Zoom on Tuesday 28th April at 15.00 UTC .
WI$HLI$TS: Accounting and managing budgets and projects in science
by Dr. Sven Teurlincx
Registration is now closed. Click here for a link to a recording of the workshop.

Limnoseries Lecture May 2026
2026-05-18 13:00 - 13:45
The next Limnoseries lecture will take place on May 18th at 13:00 UTC (45min duration)
Operating in a perfect storm: ecological lake restoration and conservation in the anthropocene
Presented by Lisette de Senerpont Domis
Lisette will be talking about the multiple challenges lake managers face in the light of rapid environmental changes. Her research highlights that this “storm”; is created by the intersection of climate change, pollution, and biodiversity loss, resulting in:
– Compounding Threats: The combination of eutrophication (nutrient pollution), altered hydrology due to climate change, and micropollutants (e.g., pharmaceuticals, plastics) is creating unforeseen ecological disasters.
– A “New” Environmental Crisis: Inland waters are under severe pressure, leading to issues like cyanobacterial blooms (blue-green algae), degraded food webs, and the introduction of invasive species.
– Reduced Resilience: Local factors (like nutrient loading) combined with global changes (like warming) make systems less resilient and harder to restore.
– The “Restaurant” Stays Open Longer: Due to climate change, growing seasons are longer, meaning harmful algal blooms persist well into the autumn.
– Need for Holistic Management: She advocates for an “ecocentric” and holistic catchment-scale approach to water management to manage these interacting factors.
Please sign up for this lecture by May 15th. The Zoom link required for the lecture will be sent to those who have registered.
We hope to see you there!
GLEON Student Association (GSA) workshop sub-committee
Registration is now closed. A recording can be viewed here.

Limnoseries Lecture June 2026
2026-06-30 14:00 - 14:45
The next GLEON GSA Limnoseries will take place on June 30th at 14:00 UTC (45min duration).
Global change effects and resilience of fresh waters: a conversation on how to address both
Presented by Mariana Meerhoff
The talk will cover some of the expected and observed impacts of different dimensions of global change on freshwater ecosystems, and some of the approaches to study both impacts, feedback mechanisms and potential resilient mechanisms shown by communities and ecosystems. The need to address potential solutions to the current ongoing biodiversity and water crisis will also be discussed.
If you would like to attend this lecture or receive the recording, please fill in the following registration form: https://forms.gle/J6A3L5drieXsTrrL6.
Please sign up for this lecture by June 26th. The Zoom link required for the lecture will be sent to those who have registered.
We hope to see you there!
GLEON Student Association (GSA) workshop sub-committee

Data Analysis R Training Limnoseries August-November 2026
2026-08-05 - 2026-11-05
The GLEON Student Association (GSA) is launching a free, open-to-all Data Analysis Training series using R, no prerequisites required. Our goal is to make this essential research skill accessible to the whole community.
The series consists of 6 workshops, running from August 5th to November 6th (every 2–3 weeks), progressing from beginner fundamentals to more advanced techniques. The full schedule is listed below:

BeginR: Introduction to R for basic data analysis and visualization by Josh Culpepper, Aug 5, 13:00 UTC
Hypothesis Testing: reasoning and practice of statistical hypothesis testing for ecologists, from foundational concepts through study design and influence by Diego Pujoni, Aug 26 at 13:00 UTC
Time Series Analysis by Max Glines, Sep 7 at 13:00 UTC
Applied Multivariate Statistics by Diego Pujoni, Sep 23 at 13:00 UTC
Generalized Linear Models (GLMs): a practical introduction to GLMs and their extensions for ecological data, covering model fitting, evaluation, comparison, and interpretation by Diego Pujoni, Oct 28 at 14:00 UTC
Making Your Code Reproducible with GitHub and Other Tools by Abby Lewis, Nov 5 at 14:00 UTC

Free & Open to Everyone
Information about individual workshop details and registration links will be posted to the events calendar a few weeks ahead of each session.
Please feel free to share this invitation with colleagues, students, or institutions who might benefit from this training.
A heartfelt thank you to all our GLEON volunteer teachers, whose generosity and expertise make this initiative possible and help spread knowledge and support across our network and beyond.
We hope to see you there!
GSA workshop sub-committee

Data Analysis Limnoseries Training - Part 1
2026-08-05 13:00 - 14:00
We’re kicking things off the Data Analysis Training Series on the 5th of August 15h CEST, 13h UTC (1h duration) with:
BeginR: Introduction to R for basic data analysis and visualization
Presented by Joshua Culpepper
In this workshop, you will walk through the basics of using R and R Studio to import a dataset, conduct some basic data cleaning, and visualize your data. This workshop will teach you the essential steps to start exploring your data both analytically and visually. This workshop assumes no prior knowledge of R.
Prior to the workshop:
You should download both the latest versions of R and R Studio to ensure that the code works properly. Here is a link to help you:
https://rstudio-education.github.io/hopr/starting.html
Because this is a beginner workshop, bring questions so that you can get the most out of this workshop.
If you would like to attend this workshop or receive the recording, please fill in the following registration form: https://forms.gle/rg5nCyvKKSU68Zsk9
Please sign up for this workshop by August 1st. The Zoom link required for the workshop will be sent to those who have registered.
Please feel free to share this invitation with colleagues, students, or institutions who might benefit from this training.
A heartfelt thank you to all our GLEON volunteer teachers, whose generosity and expertise make this initiative possible and help spread knowledge and support across our network and beyond.
We hope to see you there!
GLEON Student Association (GSA) workshop sub-committee

Data Analysis Limnoseries Training - Part 2
2026-08-25 13:00 - 15:00
We’re excited to continue our free, open-to-all Data Analysis Training series using R, no prerequisites required. Our goal is to make this essential research skill accessible to the whole community.
The series consists of 6 workshops, running from August 5th to November 6th (every 2–3 weeks), progressing from beginner fundamentals to more advanced techniques. The full schedule is available in the attached flyer.
New date: We’re pursuing our training on the 25th of August 15h CEST, 13h UTC (2h duration) with:
Hypothesis Testing: reasoning and practice of statistical hypothesis testing for ecologists, from foundational concepts through study design and influence
by Diego Pujoni
This workshop’s lessons will be recorded prior to the workshop to allow the participants to learn autonomously and cover the topic in depth. The in-person workshop will be mainly dedicated to discuss the topic, practice what has been learnt and answer questions.
Topics covered:

Basic concepts and principles

Standard error and the Central Limit Theorem

Experiments, pseudo-experiments, and quasi-experiments

Replication and pseudoreplication

Statistical tests, p-values, and effect size

Parametric and non-parametric statistics

Bayesian and frequentist statistics

t-test, ANOVA, and linear regression

Sample-size calculation and statistical power analysis

Prior to the workshop:
– Download both the latest versions of R and R Studio to ensure that the code work properly. Here is a link to help you:
https://rstudio-education.github.io/hopr/starting.html
– Watch the lessons recordings and practice the exercises to come prepared with your questions. Links to the recordings will be sent to you after your registration.
If you would like to attend this lecture or receive the recording, please fill in the following registration form: https://forms.gle/jVWxuz4E8CLpdQacA
Please sign up for this lecture by August 14th. The Zoom link required for the lecture will be sent to those who have registered.
Please feel free to share this invitation with colleagues, students, or institutions who might benefit from this training.
A heartfelt thank you to all our GLEON volunteer teachers, whose generosity and expertise make this initiative possible and help spread knowledge and support across our network and beyond.
We hope to see you there!
GLEON Student Association (GSA) workshop sub-committee

United Nations World Lake Day
2026-08-27
The UN World Lake Day is observed on August 27th.
Lakes: the lifeblood of our planet. Let’s protect them today for a sustaining life tomorrow. Visit the UN Water website to learn more about lakes, why they are in decline, and what can be done about it.

GLEON 2026 All Hands' Meeting
2026-08-28 - 2026-09-04 | Ateneu de Banyoles, Banyoles, Spain
The GLEON 2026 All Hands’ Meeting will be held at Lake Banyoles, Spain on 30 August to 4 September 2026 with pre-meetings and early arrivals on 28-30 August 2026. The meeting will be hosted by Universitat de Girona (UdG), Blanes Centre for Advanced Studies (CEAB), and University of Vic – Central University of Catalonia (UVic-UCC) with support from numerous local institutions, companies, and communities.
Ada Pastor, Núria Catalán, and Mireia Bartrons will be the host team for the GLEON 2026 Meeting in Banyoles, Spain. This website will be updated as new information is available.
The hashtag #GLEON2026 will be used for social media.
Attendee Checklist (details provided below):

Complete the meeting registration form (registration is now closed). Contact us to inquire about late registration.
Complete the meeting package reservation form (reservations are now closed). Contact local organizers with any changes.
If an eligible early career researcher (check the criteria for application and evaluation here), complete the application form for a Freshwater Futures Fellowship by 15 May 2026 (now closed)

All attendees MUST complete and pay for both the meeting registration AND the appropriate meeting package by the deadline. After the deadline, participation in the meeting will be based on availability.
Program Overview
For the most recent version of the detailed program agenda, click here.
The pre-meeting program includes a Steering Committee retreat (tentative) on Saturday, workshops on Sunday, and the main meeting beginning on Monday and continuing through Friday. This schedule allows more meeting time for working group meetings and excursions during the week.
Plan travel and budget accordingly to arrive at Banyoles, Spain by Friday (to be confirmed for Steering Committee members), Saturday (for students and workshop attendees), or Sunday (if only attending the main meeting) and depart on the following Friday afternoon. See Travel and Meeting Venue below for more information.
An overview of the meeting program is provided below:

Friday, 28 August – Steering Committee arrivals (in Girona)
Saturday, 29 August – GLEON Steering Committee retreat (in Girona) and early arrivals (in Banyoles)
Sunday, 30 August – Workshops, facilitation training, and arrival day for all other attendees
Monday, 31 August – Opening plenary, Working Groups, and Poster Session
Tuesday, 1 September – Special joint session with Physical Processes in Natural Waters (PPNW), Working Groups, and Poster Session
Wednesday, 2 September – Excursions, water management discussion with local stakeholders, and general assembly meeting
Thursday, 3 September – Working Group meetings, student association and post-student association activities, cultural activities
Friday, 4 September – Final report back, closing session, and departures in the afternoon

Please note: the meeting will take place through Friday this year to allow for mid-week excursions.
Special groups involved in the meeting:

Spanish stakeholders focusing on challenges in arid and semi-arid regions
Local researchers to share the social and scientific context of Lake Banyoles

The vision for the meeting organizers is to uphold GLEON’s values:

Collaborative, inclusive, and interdisciplinary
Active participation from early-career researchers
Field excursions to nearby places of ecological and/or cultural interest
Affordable meeting package to facilitate Global South attendance

Meeting Registration
Registration is now closed for the GLEON 2026 Meeting in Spain. Contact us with inquiries about late registration.
In addition to registering for the meeting with GLEON, attendees MUST reserve the appropriate meeting package by completing a separate form provided by the local host team. (See Venue and Accommodations below).
Meeting Registration fee
The GLEON Steering Committee has created a fee structure to allow attendees to select the fee most appropriate to their situation.
The registration fee options are as follows:

$200 (for those with minimal funding available to cover the registration fee)
$350 (for those with limited funding available to cover the registration fee)
$550 (for those with funding available to cover the full registration fee)

There is no added fee for pre-meeting workshops. Meeting participants will also need to reserve and pay for the appropriate meeting package to stay in Banyoles for the meeting (see Venue and Accommodations below).
Travel support is available for early-career researchers. See Freshwater Futures Fellowship below for more information.
For anyone for whom the registration fee creates a barrier to participation, contact the GLEON Steering Committee Co-chairs to inquire about fee waivers.
FAQs: Registration
Q1: Do I need to be a GLEON member to submit registration to attend the All Hands’ Meeting?
A1: No, anyone interested in attending can register. GLEON membership is not a requirement for attending GLEON meetings. However, you will be expected to become a member when you decide to join GLEON collaborative efforts (e.g. projects, working groups, experiments) that require all team members involved to agree to the GLEON Operating Principles & Procedures.
Q2: Do I need to pre-register for this meeting?
A2: There is no pre-registration for this meeting. Attendees should register for the meeting AND reserve the appropriate meeting package using the forms provided.
Q3: Is registration support available for this meeting?
A3: For anyone for whom the registration fee creates a barrier to participation, contact the Steering Committee Co-chairs to inquire about fee waivers.
Meeting Venue and Accommodations
Meeting organizers are using a strategy to ensure a genuine GLEON experience:

Purposely avoided luxury resorts to keep costs at a minimum.
Although there will be several options for overnight accommodations, the whole meeting is happening in a small pedestrian downtown area with everything within a five minutes walking distance.
The main meeting venue will be Ateneu de Banyoles.

Overnight accommodations are limited in Banyoles, and our local host team has made arrangements to accommodate our group.
Meeting package reservations
In addition to registering for the meeting, all meeting attendees MUST reserve one of the two following options that includes the Meeting Package. One package includes pre-arranged overnight accommodations for attendees who will be traveling to the meeting, and the other is for local attendees, guests, or those who do not require overnight accommodations. Payment in full will be required at the time of your reservation. After the deadline, the meeting package will be based on availability. Reservations are now closed. Contact local organizers for inquiries about late reservations or any changes to your existing reservation.
The following overnight accommodation options are available for meeting attendees. Links are provided for attendees to learn more about the options. Reservations should be made by completing the form provided by the local host team not directly with the hostel, hotel, or apartment vendor:

Banyoles Hostel
Sprint Hostel
L’Ast Hotel (sold out)
La Carpa Apartments

The L’Ast Hotel option is sold out and there is limited availability for other accommodations (as of 2 June 2026). The remaining meeting package rates with overnight accommodations included are as follows:

Meeting package with accommodation
5 Nights
(30/08-04/09)
6 Nights
(29/08-04/09)

Banyoles Hostel – Shared room (2-10 people)*
620 €
650 €

Sprint Hostel – Shared room (2-8 people)*
670 €
710 €

La Carpa Apartments – Double apartment (2 people)**
935 €
1.030 €

La Carpa Apartments – Single us apartment**
1.407 €
1.598 €

*Some rooms have air conditioning and will be assigned in the order of registration.
**All rooms have air conditioning.
The meeting package with overnight accommodations is priced per person and includes everything apart from the GLEON meeting registration fee, namely: overnight accommodations in your choice of hotel, apartment or hostel on a first-come, first-served basis, on-site participation in all organized activities, daily coffee breaks, lunches, dinners, and social activities.
If you are traveling with your family or accompanying person, please select the La Carpa Apartments single use or l’Ast Hotel*** Double room, single use option and contact us at congressos.fundacioudg@udg.edu for further arrangements.
Meeting package rates without overnight accommodation

The meeting package without overnight accommodations is priced per person and includes: on-site participation in all organized activities, daily coffee breaks, lunches, dinners, and social activities. Overnight accommodations are not included in this rate.
The accompanying person is priced per person and includes lunches and dinners. Accommodations, social activities, and daily coffee breaks are not included.
Participation Support for Early-career Researchers
The host team has secured funding through the esGLEON network to provide full participation support (for registration and travel) to early career researchers. For those who qualify for Freshwater Futures Fellowship support, please complete the meeting registration form and apply for support by 15 May 2026 (applications are now closed).

Student Information

For more information about student participation in the GLEON All Hands’ Meeting, including a student checklist, click here.

Posters & Abstracts
During registration, participants are invited to submit an abstract (or more if applicable) to present your research at the GLEON All Hands’ Meeting. For more information and formatting instructions, click here. Please keep your poster size within 90 cm (width) x 120 cm (height).
The GLEON Student Association (GSA) Poster Committee will prepare a GLEON 2026 Abstract Book and include all abstracts that authors give permission to share during registration. A link will be shared in advance of the meeting.
Workshops
The GSA has organized four pre-meeting workshops to be held on Sunday, 30 August 2026. Two workshops will be held in the morning and two in the afternoon:
Morning workshops (10:00-13:00)

High-Resolution GHG Flux Measurements in Aquatic Systems by Camille Minaudo
Winter limnology: The Art of Instrumenting Remote Lakes (Without Dying in the Process) by Manuel Toro and Ignacio Granados

Afternoon workshops (14:30-17:30)

Hybrid Lake Modelling with Process-Based Models and Machine Learning by Daniel Mercado-Bettin
Decolonial Perspective and Scientific Practice. Introductory Workshop by Lalama Jabby and Francisca Casas-Cordero

Network Partnership Program

The purpose of the Network Partnership Program (NPP) is to help New-to-GLEON participants engage in effective, friendly networking and integration into the community of people and collaboration. For more information about the NPP program, click here.

Excursions
The local host team has organized full-day and half-day excursions to learn about Lake Banyoles and the surrounding area on Wednesday, September 2nd, 2026. For more information about excursions, click here.
Travel
Banyoles is close to Barcelona International airport (100km) and Girona High Speed Train station (15km). Click here for more details about travel logistics and instructions for how to get to and from Banyoles.
Visa & Letter of Invitation
Visa

Check here for the visa application procedure for your country or consult the Spanish Consulate in your country/region to find out whether you need a visa to visit Spain.
Plan your air travel sooner rather than later, especially if your itinerary includes a stopover in a country where a transit visa is required. Please consult with your air ticketing agency and the consulates of the countries you will transit through for the latest requirement.

Letter of Invitation
If you need a letter of invitation to support your visa application or approval by your institutions, click here for instructions.
About Banyoles

Best known for its karstic lake – the Estany de Banyoles, the largest natural lake in Catalonia and a landmark in Spanish limnology.
Formed by limestone dissolution and underground springs, it has a unique karstic hydrology, rich biodiversity, and is a hub for research, recreation, and rowing— notably hosting the 1992 Olympic events.
Surrounded by scenic landscapes and medieval heritage, Banyoles blends nature, science, and culture.

Beginner’s Guide to GLEON
The GLEON Student Association developed a Beginner’s Guide to GLEON to help orient those who are new to the network or attending their first meeting.
Code of Conduct
Please refer to the GLEON Meeting Code of Conduct, adopted by the Steering Committee in 2019 and updated in 2024.

Program Committee and Sponsors

GLEON 2026 Meeting Program Committee

Núria Catalán (co-chair), Ada Pastor, and Mireia Bartrons (local host team)
Jorrit Mesman (co-chair) and Katalin Patonai (GLEON Steering Committee)
Kirsty Forbes and Lisa Morales (GLEON Student Association)
Camille Minaudo and Freya Olsson (GLEON Post-student Association)
Rosie Chapina and Rachel Pilla (Committee for inClusive Collaboration)
Rafa Marcé and Lisette de Senerpont Domis (GLEON Steering Committee co-chairs)
Lisa Borre (GLEON coordinator at Cary Institute of Ecosystem Studies)

Host Organizations
GLEON is grateful to our sponsors and partners for organizing and supporting the All Hands’ Meeting:

Universitat de Girona (UdG)
Blanes Centre for Advanced Studies (CEAB)
University of Vic – Central University of Catalonia (UVic-UCC)

Other Meeting Sponsors and Partners
The GLEON 2026 meeting in Spain was organized with support from numerous local institutions, companies, and communities, including:

ATL: Aigües Ter‑Llobregat
AIL: Asociación Ibérica de Limnología
SIBECOL: Sociedad Ibérica de Ecología
Fundació UdG: Fundació Universitat de Girona: Innovació i Formació
Banyoles Municipality: Ajuntament de Banyoles
Consorci de l’Estany de Banyoles
Museu Darder de Banyoles
esGLEON
Xylem España

GLEON Supporting Organizations

Cary Institute of Ecosystem Studies
Center for Limnology, University of Wisconsin Madison

Data Analysis Limnoseries Training - Part 3
2026-09-07 13:00 - 14:00
Time Series Analysis
by Max Glines
Sep 7 at 13:00 UTC
More information coming soon.

Data Analysis Limnoseries Training – Part 4
2026-09-23 13:00 - 14:00
Applied Multivariate Statistics
by Diego Pujoni
Sep 23 at 13:00 UTC
More information coming soon.

Data Analysis Limnoseries Training - Part 5
2026-10-28 14:00 - 15:00
Generalized Linear Models (GLMs): a practical introduction to GLMs and their extensions for ecological data, covering model fitting, evaluation, comparison, and interpretation
by Diego Pujoni
Oct 28 at 14:00 UTC
More information coming soon.

Data Analysis Limnoseries Training - Part 6
2026-11-05 14:00 - 15:00
Making Your Code Reproducible with GitHub and Other Tools
by Abby Lewis
Nov 5 at 14:00 UTC
More information coming soon.
