Meetings, conferences, symposia, and workshops from around the world related to diatoms are posted here. Contact us to include your event.

14th European Diatom Meeting

14th European Diatom Meeting

09-11/5/2023, Meise Botanic Garden (Belgium)

Organisation & Information: Bart Van de Vijver ( & Charlotte Goeyers (

Website: will be announced in fall 2022

The 14th European Diatom Meeting will be organized from 09-11/05/2023 at Meise Botanic Garden (Belgium). After the successful online meeting in Cardiff in 2021, we hopefully all look forward to meet each other again on a physical meeting.

The European Diatom Meeting originally started as the Treffen Deutschsprachiger Diatomologen (DDT) and was transformed in 2007 into Central European Diatom Meeting with a first symposium organized in the Botanic Garden of Berlin. It brings together scientists from all over Europe and further afield to discuss a broad range of topics in diatom research: morphology, taxonomy, biogeography, physiology, (paleo)ecology of terrestrial, freshwater and marine diatoms. The meeting will be organized in memory of our dear friend and colleague Luc Ector who organized the (C)EDM meeting in 2019 in Luxemburg, and who suddenly and too early passed away in April 2022.

Meise Botanic Garden, located just north of Brussels, is one of the leading botanical institutes in Europe. It hosts the world-famous Van Heurck diatom collection, one of the 10 largest diatom collections of this kind in the world. The meeting will take place in the historic Castle of Bouchout, situated in the middle of the 92ha large garden. Keynote lectures, oral and poster presentations are scheduled for Tuesday 09/05 and Wednesday 10/05 2023. The meeting will be followed on Thursday 11/05 by a one-day taxonomic workshop on the European species of the genus Brachysira.

Social events include a beer-tasting with Belgian beers, organized in the famous Plant Palace, the 1 ha large greenhouses, and a barbecue in the castle.

We are delighted to host the 2023 joint meeting of the Society for Freshwater Science and the Australian and New Zealand Freshwater Science societies here in Brisbane. This will be the first time the Society for Freshwater Science has held its annual conference outside of North America and presents an opportunity to broaden ‘north-south’ collaborations and explore solutions to the many challenges facing our freshwater ecosystems. We hope that you can join us in our river city for this exciting event.

It contains a session on (diatom) taxonomy.

ASLO Aquatic Sciences Meeting 2023 in Palma de Mallorca

Resilience and Recovery in Aquatic Systems

Concepts of resilience and recovery do not only apply to aquatic ecosystems but also to societies when faced with disruptions and crises. Past events have shown that adaptability and decisiveness are important keys to resilience and recovery. Disruptions are opportune moments for setting up strategies for management and recovery. Faced with the COVID-19 pandemic, ASLO meetings have adapted by transforming the ASM 2021 Palma meeting to virtual with a positive attitude that in 2023 we will recover and meet in-person. Positivity is also an important factor.  We do not dwell on problems, but we try to look for solutions and get united for whatever crisis we face.  

We will incorporate the theme of resilience and recovery in aquatic systems into the plenary sessions and encourage submissions that examine these topics and invite you to contribute special sessions on topics relevant to freshwater and marine ecosystems.  

Initially this meeting was scheduled to be held in Palma in 2021, but due to COVID-19, it became necessary to hold the ASLO 2021 Aquatic Sciences Meeting virtually.  However, we plan to meet in Palma in 2023.   

(from their website)

MARDI workshop: Harmonisation of (sub)Arctic diatom taxonomy

The workshop will be dedicated to integrating and agreeing upon a common taxonomy for all datasets. A key outcome of this workshop will be an outline of a taxonomic guide that includes descriptions of species morphology and ecology, images, and geographical distribution. This workshop will be hands-on: participants are encouraged to bring their own samples/slides and microscopes will be available.

This workshop is the 2nd in the series of 4 planned MARDI (Marine ARctic DIatoms) workshops, each of which builds on the previous workshop and plays a crucial part in achieving the overall MARDI goals.

This “on site” workshop will be followed by:

1) several online open-to-all taxonomic mini-workshops on taxonomically difficult key taxa that will be broadcast and archived online; and
2) gradual collection and archiving of diatom species information to online databases.


We’re absolutely delighted to announce that the Freshwater Biological Association (FBA) will be hosting SEFS13 from 18th – 23rd June 2023 in Newcastle Upon Tyne, England.

Following on from the success of SEFS12, which was an entirely virtual event due to COVID19
travel restrictions, we are excited to be able to offer the opportunity for delegates to physically get together, collaborate and network for the first time in four years. With this in mind, SEFS13
promises to be a symposium like no other, and without doubt, a cause for celebration! To say we’re excited, is an understatement!

(from their website)

The theme of the congress is “a Mediterranean perspective on Quaternary Sciences” since the Mediterranean region, so geologically young and active, is the ideal place where to discuss the processes and events that shaped the landscape, the environment and the ecosystems in the last 2.58 million years.

From the glacial systems in the Alps to the desert facing the southern shore, from the large coastal plains and deltas to the rocky coasts where the mountain ranges reach the sea, from the karst to the lacustrine to the volcanic environments, almost all of the Quaternary features are present in the region.

Follow information on twitter @mldiatoms

European Phycological Congress in Brest (France)

After Zagreb in 2019, we are pleased to invite you to Brest (Brittany, France) for the 8th European Phycological Congress “Scientific Opportunities for a Global Algal Revolution” on behalf of the Federation of European Phycological Societies council and the French Phycological Society. France has a long and proud tradition of phycological research and has a very diverse algal flora. Brittany is a world hotspot for seaweed diversity with about 700 species and has historically developed a flourishing macroalgal industry that still maintains its leadership in Europe. The region also hosts important research institutes dedicated to microalgae research and oceanography.

The European Phycological Congress series began in Cologne, Germany in 1996 and has since continued the tradition of bringing together phycologists from around the world every four years. Its main objective is to provide a forum for discussion of the latest scientific, technological and societal developments in phycological research. EPC8 includes plenary presentations, a series of symposia grouped into 6 themes, contributed papers and posters covering a wide range of topics such as algal diversity, ecology, genomics, cell biology, applied phycology and societal perception of algae. To encourage cross-community connections, each symposium will address micro- and macroalgae from marine, freshwater, and terrestrial ecosystems whenever possible. We look forward to welcoming you to Brest in August 2023 for EPC8!

On behalf of the organizing committees, Solène Connan and Philippe Potin


26th International Diatom Symposium in Yamagata

The original 26th diatom symposium in Yamagata, planned for 2020, will be held there in 2023. Stay tuned for more information.

15th European Diatom Meeting

The 15th European Diatom Meeting at Lake Ohrid, North Macedonia, has been postponed to 2024. Lake Ohrid, a deep and ancient lake of tectonic origin, is a unique refuge for numerous endemic and relict freshwater species of fauna and flora, and the town of Ohrid is one of the oldest settlements in Europe and a major cultural centre.

The main topics of the meeting will be climate change and paleoecology, biomonitoring, evolution, phylogeny, systematics, taxonomy, biogeography, ecology, and diatom applications.  

For further details please visit   



2024 International Botanical Congress

We are delighted and deeply honored to announce that the next International Botanical Congress ―the 20th IBC— will take place in Madrid (Spain) on the following dates:

Nomenclature Section, 15–19 July 2024
Congress, 21–27 July 2024

The IBC takes place every six years under the supervision of the International Association for Botanical and Mycological Societies (IABMS). The 20th was scheduled to take place in 2023 in Brazil after Shenzhen’s (China) 2017. Unfortunately, the difficult situation caused by the worldwide pandemic has made impossible to organize this big event in Brazil in 2023.
Rooted in the tradition of Systematic Botany, the IBCs have enlarged their scope over more than a century to become an integrated forum for knowledge on the plant and mycological world. Please take a look at the broad scope of topics that we hope to include in this upcoming IBC in this site.
The Congress will include plenary lectures, concurrent symposia ―for which we will ask for proposals in Spring 2022—, posters, exhibitors, as well as short courses and workshops.
We wholeheartedly invite all the botanical community worldwide to come to participate in the 20th IBC and enjoy, in Madrid, the privilege of sharing research, knowledge and experiences with colleagues and friends from all over the planet. We will make efforts to provide the best environment for such a thrilling experience.
A suite of post-meeting excursions will be offered for attendees to visit places of botanical and cultural interest. See the preliminary list in this site.
We look forward to seeing you all in Madrid in July 2024.

Kind regards,
The Organizing Committee of the 20th IBC