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2024-12-31-accounts

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https://isdr.org
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th 27 International Diatom Symposium - Skukuza, Kruger National Park, South Africa, 3 8 August 2025 21st Annual General Meeting, 7 August 2025

Agenda

  1. Apologies

  2. Approval of Minutes of the Annual General Meeting 2023

  3. In Memoriam

  4. President’s overview

  5. Secretary’s report

  6. Treasurer’s report

  7. Diatom Research Editor’s report

  8. Early Career Representatives’ report

  9. IDS 2027, Prague, Czech Republic

  10. Other future meetings

  11. AOB

1 – Apologies

2 – Approval of Minutes of the Annual General Meeting 2023 Minutes of the 20[th] Annual General Meeting held on 1 September 2023, 16.00 – 17.00 JST Minutes sent to members on 31 July 2025 24 members attended in person, 6 members attended online, the Minutes of the AGM 2023 were approved.

3 - Deceased diatomists

In memoriam 2023 - 2025

Our colleagues who left us forever…. but will always remain in our hearts and minds Andrzej Witkowski Stuart Stidolph Jacob John Pieter Houpt Brian Whitton 1955 - 2023 † 2024 1939 - 2024 1931 - 2025 1936 - 2025

4- President's overview

Council Members (Aug 2023 - Aug 2025)

Sarah Spaulding Bart Van de Vijver President 2023-2025 Vice-President 2023-2025

Becky Bixby

Marco Cantonati

Rosa Trobajo Past-President

Maria Kahlert

Shinya Sato Co-convenor IDS 2021&23

Jonathan Taylor Convenor IDS 2025

Andrea Burfeid Castellanos Elected ECR

Ingrid Jüttner Secretary

Keely Mills Treasurer

Martyn Kelly

Carlos Wetzel

Jonas Zimmermann

Kálmán Tapolczai Elected ECR

Ric Jordan Editor Diatom Research

Like many times throughout history, our present times are challenging.

As a society, we have a crucial role to train and mentor the next generation of diatomists, across all subdisciplines. Our students need to have the benefit of a strong scientific training to compete for available jobs. Let’s continue to prioritize our students and early career researchers.

For decades now, the field of taxonomy has been in decline across organismal groups, around the world. Collections are vital to our science, yet many collections are vulnerable to loss of funding. Let’s reinvigorate our collections working group to keep the importance of collections central to our organization.

Despite a very low cost of joining ISDR, our membership continues to be at a low. Building membership supports our ability to train students, speak out for collections, and strengthen our network with sister societies. Consider purchasing a membership for a student! Let’s all take on the task of encouraging a colleague to join ISDR.

I extend heartfelt appreciation to Ingrid Jüttner, Secretary, and Keely Mills, Treasurer, for dedication to keeping our society running smoothly and on a solid financial basis. Eileen Cox, long-standing Editor in Chief of Diatom Research, transitioned the EIC role to Ric Jordan. An enormous thank you to you both. I invite you to consider serving as an Associate Editor, as Ric builds an editorial team.

Please join me in thanking Andrea Burfeid and Kálmán Tapolczai for leading an energetic and vital group of early career members. Finally, I appreciate all of you, our international community of accomplished experts, across a range of specialities. Together, we accomplish great things.

I am proud of so much that we are doing to address the challenges: A. IDS 2025 in Kruger National Park is a reality! Everyone should know that organizing a symposium takes years of planning in advance, with endless details for the organizer to attend to. A wholehearted thank you to Jonathan Taylor for making the symposium a reality – and I just wish that I was present to be with all of you. I give great appreciation to the local organizing committee, scientific committee, Young ISDR, the Executive Council, and International Union of Biological Sciences (IUBS - https://iubs.org/)

B. The strength of YoungISDR is our superpower! I am inspired by the ongoing engagement and participation by our students and early career scientists to build a supportive network across nations. Thank you to Kálmán for leadership and to all of our young scientists for building strong scientific connections with one another. If you are a student or recent graduate, be sure to join one or more of the many activities – blog posts, Diatom of the Month, calendar contest, and more.

Early Career Researcher grants

C. Early Career Awards reach across continents. We are now in the 3[rd] round of trial grant awards, made possible because of our sound financial standing (Treasurer' s report). Furthermore, the program has been promoted through numerous online sessions guided by Andrea Burfeid Castellanos. The program is possible through the feedback from review panels to review, discuss, and provide constructive criticism to applicants. Thank you to the review panels who volunteer their time to the program and congratulations to our outstanding Early Career Researchers!

Early Career Researcher grants

2023/ 2024 Submissions: 15 Type I, 2 Type II.

Review panel: Eileen Cox (chair), Silvia Sala, Patrick Rioual, Eveline Pinseel

Luc Ector Grants (Type I)

Kazuki Sugawara, Tokyo University of Marine Science and Technology, Japan Host specificity in diatoms – a case study of the marine epiphytic diatom Falcula rectangularis.

Oktiyas Lufthfi, University of Szczecin, Poland

Biodiversity of coral reef diatoms from Java and Bawean Island, Indonesia, based on morphology approach.

Deevena Elias, Forest Research Institute, Dehradun, India

Evaluation of health and management of Renuka wetland: A RAMSAR site, Himachal Pradesh.

Networking Grant (Type II)

Benito Granell, IRTA, Spain; Sabrina Bustos, CONICET, Argentina; Mariá Luján Garciá, University of Bremen, Germany; Sandra Garcés-Pastor, Marine Sciences Institute, Spain.

DiatomS mEEt Databases: resources and practices to enable large-scale ecological research (SEED).

Early Career Researcher grants

2024/ 2025

Submissions: 6 Type I.

Review Panel: Regine Jahn (chair), Somayyeh Kheiri, Shinya Sato, Maria Kahlert

Luc Ector Grants (Type I)

Sulastri Arsad, University of Szczecin, Poland

Unravelling the diatom diversity of Sulawesi Island: a morpho-molecular perspective.

Maria Gabriela Junqueira, Federal University of Rio Grande do Sul, Brazil Bridging gaps in Brazilian Diatoms: New species, trait variation, and a step forwards building a barcode library.

Early Career Researcher grants

Applications deadline: 1 October 2025 Type I: Luc Ector Grant (3 awards, £2000 each) Type II: Networking Grant (1 award, £4000) Eligibility: Early career researchers - current MSc and PhD students

8 July 2025 (Americas)

21 July 2025 (Asia/Pacific)

https://isdr.org/how-to-apply-to-isdr-grants/ Review Panel: Marina Potapova (chair), Becky Bixby, Jonas Zimmerman, Xavi Benito Award announcement: 15 November 2025

D. ISDR joined sister societies to further our international connections in 2024.

We provided / supported

I appreciate your trust and the opportunity to serve as ISDR President over the past two years. Thank you.

Sincerely, Sarah A. Spaulding

5 - Secretary's report

Council elections 18 June- 11 July 2025 In total sixty-six (66) eligible votes were received by the ISDR. Vice President- Results ELIGIBLE VOTES

Votes

Votes 36 54.5% 30 45.5% 66 100% ALL VOTES

Votes

% Votes 40 55.6% 32 44.4% 72 100% Name Andrea Burfeid Castellanos Paul Hamilton TOTAL Ordinary Members- Results ELIGIBLE VOTES

Votes

0/0 Votes 33.3% 11.4% 14.4% 12.9% ALL VOTES

Votes

% Votes 50 34.7% 10.4% 13.9% 12.5% 28.5 100% Name Carina Seitz Jinpengzhang Liu Yan Min Chen Somayyeh Kheiri TOTAL 15 19 20 37 132 41 144 100% I can confirm that the information provided to the ISDR Council is true and accurate. Keely Mills ISDR Treasurer 14July2025

ISDR Council

Elected Vice-President, July 2025

Andrea Burfeid Castellanos

Elected Council members, July 2025

Somayyeh Kheiri

Carina Seitz

Elected Early Career Representative, July 2025

Raquel Viso

ISDR Membership Fees (per year)

ISDR Membership Fe es(per y
Standard membership £40
Joint membership £50
Student membership £25
Standard membership (LDC) £20
Student membership (LDC) £10

Benefits:

ISDR website https://isdr.org

https://isdr.org/about/

Council members Diatom Research

https://isdr.org/membership/ Contact: Keely Mills, Treasurer, kmil@bgs.ac.uk

supported by our developer: Kevin Cooper Communications Manager The Big Idea 07872 066707 http://www.bigidea-creative.co.uk

https://isdr.org/international-diatom-symposium/

https://isdr.org/about-isdr-grants/

Announcements …..news/ …..opportunities/ …..networking/ jobs meetings resources: websites, databases

Contributions welcome!

https://isdr.org/dom/ Diatom of the Month articles

Young ISDR

team activities social media blog

ISDR Council meetings (Zoom)

ISDR Charitable Incorporated Organisation (CIO)

CAF bank, UK – specialist bank for charities

10 October 2023 18 December 2023

December 2023 – Council instructed to open bank account November 2024 – transfer of assets completed

In progress on ISDR website: donations to ISDR diatom courses

25 May 2024 25 November 2024

Supporting IDS and regional diatom meetings

31 January 2025

4 June 2025

IDS 2023, Yamagata, Japan, £5336

7 July 2025

European Diatom Meeting (EDM) 2024, Lake Ochrid, Macedonia, £2645 North American Diatom Symposium (NADS) 2024, Iowa Lakeside Lab, USA, £3000

Early Career Researcher Awards

2023/2024 – 3 Type I grants, 1 Type II grant 2024/2025 – 2 Type I grants

ISDR Council meetings (Zoom)

Promoting ISDR

Poster and PowerPoint presentation available for presentations at other meetings. Contact: andrea.burfeid@gmail.com

10 October 2023

18 December 2023

Diatom Research

25 May 2024 25 November 2024

Taylor and Francis does not offer a lower fee for online only access. T&F local distribution centre in China in place.

31 January 2025

4 June 2025

Future meetings

7 July 2025

Proposal for joint meeting with ‘Molecular Life of Diatoms’ group in 2029.

Matt Julius offered to organise meeting in Minneapolis, USA. Council supports joint meeting – discussion with ISDR members.

Meeting format / location to be decided.

6- Treasurer's report

• ISDR has a good financial standing

December 2024

• Website integrates payments & journal

• Access via website

• Not aware of any serious issues

THE ISDR NEEDS YOU!

The ISDR is looking for a new Treasurer.

After 13 years of service the current Treasurer would like to step down due to a change of role (a move away from diatom research) and increased responsibility in their day job. Can you help shape the role of the ISDR – speak to someone from Council or email the current Treasurer (Dr Keely Mills) at kmil@bgs.ac.uk

7 - Diatom Research Editor's report

Diatom Research is published by Taylor & Francis and they continue to offer consistent support. Printed issues appear twice a year.

All papers are available online as soon as all proof stages are completed.

500 printed pages per annum.

Generous allowance (ca. 16 pages/issue) for printed colour figures, but use colour only when essential.

Use supplementary material to accommodate supporting information that is not strictly essential to the paper.

Ongoing interest in the journal: 2024: 21,864 downloads, impact factor 1.3. 2023 (1.9), 2022 (1.8), (2021 1.4).

Submissions to Diatom Research 2023 - 2025

Accepted Rejected In Review Withdrawn Revision
Overdue
Total
2023		 Accepted Rejected In Review Withdrawn Revision
Overdue
Total
2023		 Accepted Rejected In Review Withdrawn Revision
Overdue
Total
2023		 Accepted Rejected In Review Withdrawn Revision
Overdue
Total
2023		 Accepted Rejected In Review Withdrawn Revision
Overdue
Total
2023		 Accepted Rejected In Review Withdrawn Revision
Overdue
Total
2023		 Accepted Rejected In Review Withdrawn Revision
overdue
Total
2024		 Accepted Rejected In Review Withdrawn Revision
overdue
Total
2024		 Accepted Rejected In Review Withdrawn Revision
overdue
Total
2024		 Accepted Rejected In Review Withdrawn Revision
overdue
Total
2024		 Accepted Rejected In Review Withdrawn Revision
overdue
Total
2024		 Accepted Rejected In Review Withdrawn Revision
overdue
Total
2024		 Accepted Rejected In Review Withdrawn Revision
Overdue
Total
2025		 Accepted Rejected In Review Withdrawn Revision
Overdue
Total
2025		 Accepted Rejected In Review Withdrawn Revision
Overdue
Total
2025		 Accepted Rejected In Review Withdrawn Revision
Overdue
Total
2025		 Accepted Rejected In Review Withdrawn Revision
Overdue
Total
2025		 Accepted Rejected In Review Withdrawn Revision
Overdue
Total
2025
Submission Type
Full length submission 18 9 0 0 0 27 20 16 3 3 1 43 4 5 21 0 1 31
Note 2
1
0
0
0
3		 1
0
0
0
0
1		 0
0
2
0
0
2
Review 0 1 0 0 0 1 0 1 0 0 0 1 0 0 2 0 0 2
Book Review 0
0
0
0
0
0		 0
0
0
0
0
0		 1
0
0
0
0
1
Introduction 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1
Opinion Paper 1
1
0
0
0
2		 0
0
0
0
0
0		 0
0
1
0
0
1
Congress Report 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Obituary 0
0
0
0
0
0		 0
0
0
0
0
0		 0
0
0
0
0
0
Special Issue Paper 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
21
12
0
0
0
33		 21
17
3
3
1
45		 5
5
27
0
1
38

Taylor & Francis Group Latest Date Geography of Submissions 03/0712025 United States India China United Kingdom Ifa Russian Isknrnic Federati.-- Republic Sweden Pola Tuthye BraJl Czech Republic Japa Germany South Africa Chile Korea, Republic Norway Submission Datè •2020 •2021 •2022 •2023 •2024

Time to first decision mostly within two months (accepted and rejected manuscripts). Goal: eliminate late decisions by speeding up review and decision processes. Rejection rate: 35-52%.

Taylor&Franci5 Group Geographical Distribution (2024) Region Submissions I nvited Reviewers Reviewers Publications Usage Africa Asia Australasia Central & South America Europe No Region Match North America Total 4% 2% 27% 17% 3% 4Y. 5% 7/ 6/ 9/ 8/ 9Y. 29T 20% ￿ 15% 100% 100% 21V. 100% 18% 100% 100% Production Schedule (Volume Years 2024 and 2025) Online Issues Print Issues Issue Number 2024 2025 Issue Number 2024 2025 01 30 July 2024 13 August 2024 27 February 2025 04 August 2025 26 November 2024 06 November 2025 05 March 2025 01-02 24 September 2024 03 July 2025 08 January 2025 07 November 2025 02 10 June 2025 03-04 03 04

Performance of Diatom Research

Year Q2 / 2022 Q2 / 2023 Q2 / 2024 Q2 / 2025 Downloads 4787 4739 5395 7423

Africa 2 % (1K) Australasia 5 % (2K)

By region

Central/South America 8 % (3K) North America 17 % (6K)

Asia 33 % (12K)

Europe 34 % (13K)

By country

Author survey

Overall satisfaction

Refereeing process

Editor-in-Chief

Associate Editors

Richard Jordan Yamagata University Japan

Review and recruitment of Associate Editors in progress

Nelida Abarca , Botanic Garden and Botanical Museum, Berlin, Germany Bank Beszteri , University Duisburg-Essen, Germany Rebecca J. Bixby , University of New Mexico, USA Eilen J. Cox , The Natural History Museum, London, UK Ruth Eriksen , University of Tasmania, Australia Matthew Julius , St. Cloud State University, USA Yuji Kato , Kochi University, Japan

Peter Kroth , University of Konstanz, Germany Roksana Majewska , Nord University, Bodø, Norway Luca Pellegrino , Torino University, Italy

Lihua Ran , Institute of Oceanography, Hangzhou, China

Patrick Rioual , Inst. of Geology and Geophysics, Chinese Academy of Sciences, Beijing, China Koen Sabbe , Ghent University, Belgium

Megumi Saito-Kato , National Museum of Nature and Science, Japan Jeffery Stone , Indiana State University, USA

Jonathan Taylor , North West University South Africa Aleksandra Zgrundo , University of Gdansk, Poland Zlatko Levkov , Saints Cyril and Methodius University of Skopje, Macedonia

Associate Editors

I would like to extend my sincere thanks to all the above for their hard work.

The peer review process is carried out by the Associate Editors, who solicit reviewers for the manuscripts – which is not an easy task, given that many researchers are not always willing to spend their time reviewing manuscripts. However, this is an essential part of maintaining the high quality of our journal. We would like to ask our members to consider being reviewers for our journal, when contacted by our AEs.

Several AEs have been working for the journal for many years and have indicated a desire to step down. We are always looking for new Associate Editors, if you have an interest please contact one of the Editorial Board members.

Finally, thanks to the publishing team at T&F for their continued support in producing our journal.

8- Early Career Representatives, report

Who are we?

The Young ISDR Core Team – established at the IDS 2023, Yamagata, Japan

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Kálmán Tapolczai
(ECR rep) Caroline McKenzie
(Retired Young ISDR Team and Twitter
Expert)
Raquel Viso Rodríguez
(Social Media Magician)
Hirak Parikh
Andrea Burfeid
Castellanos
(ECR rep)
Luca Pellegrino Paula Mendoza
(Outreach Officer)
Rafał M. Olszyński
Eldrin DLR. Arguelles
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Regular meetings of the Core Team since IDS in Yamagata

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January February March April May June July August September October November December
2023 1 1 1
2024 1 1 1 1 2 1
2025 1 1
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Membership origin

Membership's field of research Field of research/study Benthos 11.0% raphy 0.4% Biornonitorin Taxonomy 14.6% Bio Ph 0.4% 32% heneti¢$ 1.3% Ecolo 0.4% Genetics 2.1% en IE¥olution Diatom 0.4% Palaeolimnolo 13.9% Life forms 4.0% Ocean 1.5% Limnol 0.6% Life forms 0.6% Biotechnol 0.6% Biotnonttoring 4.4% Benthos 1.5, Plankton io.i% ra LSmnolo 9.7% Metabarco¥Jin 0.4. Oceanography 2.1. PhWogenylEvolution 4.0, Physiology 3.4%

Online seminars HUN RENY IITA, Presented by mycolog￿31 and ￿¢01091tÈ1 Sectts) ofthe Biokoy Students. sc1entrf￿A%xtl£IICn nd Department tsfAgdooy anrj Mycdooy from UnrfftNtyd Lcxlz Algoknj￿a1 arml 80tan￿1 StudentscieniificASg￿jatKy￿.ChlorI and DEpattTTEDlolAJgYryyand MsrDkwfrQ￿n UnrwerwtyDfLgdi FftEE ONUNE LECTURE FREE ONUNE LECTUIIE DIATOM METABARCODING- A NEW ERA IN DIATOM BIOMONITORING? SEX AND THE DIATOM Sexual iept<MluCtion discovered in diatoms In 1847 the essential IEatUTe50f Ehp lrfecyde Isze ieductioD reveTsed byexpan5KJn of a special ¢¥. Thp avxQw￿)lPl vie &SlablIS￿ atM)ul ZO Yea￿ iafei. Hovfftr. f¥ Seèauxo¥MXulat￿ and thÈ ttsm￿￿te lifè tytlÈ IS kncth fOr￿fe￿Wi@Ll￿￿7llxp1O[t¥vhYthIS￿￿nd￿l￿￿heritrn￿tt￿r 15 p8¥tlGIP8Ots Kalman Tapolczai ex￿11¢￿￿ research a¢ the twrtnnt of and M￿[(￿131 E¢d ¢(WS ts thah yèar5 ￿nCe he a PhD faxorxxxy. SEM141 MieTE5I in SèNual È￿￿0￿ natur￿ samrAe5 and then Iw Indu(*d 5exuèlrty In seminatural populatio

Conferences with Young ISDR representation

Conferences with Young ISDR representation

Young ISDR networking event at the 15th EDM

ISDR ECR Grant meetings

Winter Solstice parties

Young ISDR Calendar 2025

• The inaugural Diatom Calendar was launched in 2025, featuring contributions (37 images, comprising light and scanning electron microscope photomicrographs and artworks) from 23 diatomists from all around the world. A new season is set to begin in 2026.

Summary of activities on social media

• We are on all the popular social media sites

Young ISDR Instagram

Young ISDR Instagram JOB Eatth Day. Young ISD iSdr.0r￿0pportunitles What is the role of an ECR representative? International Society for Diatom Research Young ISD.,. Review ofthe upcoming meetings and courses Invite you to the ISDR ECR grant moetings 2025

Diatom of the Month

This series publishes blog posts highlighting new findings, intriguing aspects of diatom biology, and their role as invaluable indicators of environmental changes across various ecosystems. Each post is designed to communicate discoveries in a simplified, engaging manner, fostering dialogue among taxonomists, biologists, ecologists, and a broad audience that includes students, policymakers, and the general public.

11- IDS 2027

6-10 August 2027 Prague, Czech Republlc Conference Centre City INTERNATIONAL SYMPOSIUM SECRETARIAT GUARANT International eskomoravska 19 190 00 Prague 9, Czech Republic Tel.: +420 284 001444 www.guarant.cz SYMPOSIUM PRAGUE 2027 www.ids2027prague.org

Kateřina Kopalová – Main organizer Jana Kulichová Jan Kollár Raquel Viso - Young ISDR Aloisie Poulíčková – Head of scientific committee

Czech Phycological Society

Symposium sekretariát GUARANT International

INTERNATIONAL AT SYMPOSIUM PRAGUE 2027 6-10 A￿uSt 2027, Pr4u4 Czech Repub ference Centre City PRAGUE AS A CONGRESS DESTINATION The city OF a hundred spires on the Vltava river is known to people From all around the world. rL. 11 One OF the most beautiFul cities in the world strategic location with excellent transport connectivity Accommodation For all categories One OF the best-preserved cultural centres in Europe A'great value For money" city

10 REASONS WHY PRAGUE

Prague’s Attractiveness Prague can offer its visitors UNESCO World heritage sites, 103 theatres and 184 galleries.

An Excellent Location and Accessible City There are 43 countries within a 3-hour flight.

Prague is a Safe City According to the Global Peace Index (2024), the Czech Republic is ranked the 12[th] safest country in the World.

Among the top 10 world’s best cities in the world According to the renowned British Magazine Time Out, Prague ranks as the 6th best city in the World. (2022)

Hundreds of Years of Academic Tradition The year 2025 marks more than 675 years of academic tradition since the foundation of Charles University in Prague in 1348.

Friendly Accommodation Prices

According to the annual analysis of the Trivago Hotel Price Index 2024, Prague has one of the lowest accommodation prices in Europe.

Potential for Best Attendance

In 2024 Prague ranked 6[th] among the most popular congress cities in the World (ICCA Statistics).

The Best Value Destination

The annual study of British firm, Post Office, declared Prague the winner of the “Best Value” category out of all listed destinations.

Short-distance Concept

The short distances make congresses in Prague convenient for all participating delegates.

Scientific Community

Strong scientific teams, institutes and universities.

AT SYMPOSIUM PRAGUE 2027 INTERNATIONAL 6-10 August 2027. Praguq Qech Repub . ference Centre City SUGGESTED CONFERENCE CENTRE CITY Location- easy access, just 150 m From the ,,red" metro station Pankrac Capacity- 1000 sqm, 3 rooms, max. capacity 480 seated persons Variability in space- 3 seperate rooms, a total OF 5 sections, 2 Foyer CaFe Empiria- restaurant with 360 seats

INTERNATIONAL AT SYMPOSIUM PRAGUE 2027 6-10 August 2027. Pr4L& Czech Repub￿¢ C¢jnference Centre City See you in Prague in 2027 www.ids2027 ra ue.or

12- Other meetings

9-12 September 2025 September 2025

43ème Colloque ADLAFème Colloque ADLAF Colloque ADLAF

9-12 September 2025 43ème Colloque ADLAFème Colloque ADLAF Colloque ADLAF Rouen, France September 2025 Russian Diatom Meeting Vladivostok, Russia 5-8 January 2026 British Phycological Society Meeting Aberystwyth, United Kingdom 19-21 February 2026 International Conference on Algal and Varanasi, India Cyanobacterial Biology (ICACB-2026) 12-16 May 2026 2026 ASLO-SIL Joint Meeting Montreal, Canada 6-10 July 2026 European Diatom Meeting Murcia, Spain 28 January -3 February 2027 XXII INQUA 2027 Lucknow, India 4-8 July 2027 Molecular Life of Diatoms Wuhan, China 6-10 August 2027 International Diatom Symposium Prague, Czech Republic

Website on: 21st September 2025 ean Dioto Abstract submission and registration opens: 16th November 2025 Deadline for abstract submission: 17th April 2026 6th Jul 7th Jvl .O.th J.uF. Notification of abstra¢t a¢eeptan¢e 29th May 2026 Topia Diatoms as indicators ol past and present environrneni change Topi¢: Diatorns in the era of big data and integratlV8 biology Topic.. Diatom5 Lls ec05yStem players and tools for svstainability Registration and Workshops Oral sessions Oral s&5sions Oral 58ssions Field trips Workshops Orol sessions Oral sessions Oral sessions Networkin9 + Young Diatornists Poster session Poster session Social dinner

Proposed joint meeting 2029 International Society for Diatom Research / Molecular Life of Diatoms group Matt Julius offered organising the meeting in Minneapolis, USA; anticipated size ca. 400 participants Discussion, AGM 2025: of 25 members participating: 23 supportive, 1 abstained, 1 opposed. Pros / solutions Cons

2 separate meetings that overlap.

High registration costs, need for professional conference organiser.

Meeting size, limited opportunities to interact.

Joint sessions only to introduce all aspects of diatom research to all attendees, no parallel sessions as these would divide audiences along traditional lines.

Rigorous selection of talks, majority of talks by ECRs.

High interest in molecular studies; range of molecular topics could be expanded by including more presentations on phylogeny / diatom evolution.

New collaborations, more combination of morphological and molecular methods; special event to meet potential collaborators.

MLD attendees might outnumber ISDR members.

Too many submissions, limited time and reduced opportunity to present on traditional topics of interest to ISDR members.

Limited relevance to research by ISDR members, one or few topics might dominate; MLD 2025: most talks were on cell biology and physiology, few talks on phylogeny or molecular interaction between species.

MDL uses diatoms as proxies, rather than study of diatoms as organisms.

Molecular studies might benefit from support by taxonomists to improve taxon identification.

Unlikely to recruit new members from the MLD group due to different focus of ISDR research.

Information on the function of morphological structures / their relevance for identification.

Potential to attract additional sponsorship.

Generation of profit to invest in special event for ECRs.

Joint meeting every 4 years.

Contributes to the decline of organism based societies, meetings and science.

Meeting in the USA: problems obtaining US visas – high costs, logistical problems organising travel (long waiting times for visa decisions, e.g. for students 1 month before meeting); colleagues from certain countries might be excluded because they might not be given visas.

Future meetings - general comments

Separate joint meeting ISDR/MLD with focus on molecular studies only, but not as a substitute to IDS.

Poster sessions with short (2-3 minutes) PowerPoint presentations.

Balasubramanian Karthick: proposal IDS 2029 in India.

Time: late August/early September 2029 Venue: resort near Puna Pre- and post-conference excursions Guaranteed support from home institution and state of Maharashtra Good airlinks to all continents via Abu Dhabi/Dubai or Singapore/Bangkok No travel restrictions for colleagues from certain countries

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IDS Yamagata 2023
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13 – AOB

Thank you very much! See you at the IDS 2027 in the Czech Republic

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Prague
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International Society for Diatom Research Financial Statement for the Period 01 January to 31 December 2024

£ £ £ £
Balances in account - 01 January 2024 EXPENDITURE
Current Account 69,384.43 Liability insurance 323.68
Reserve Account 5,311.58 Taylor & Francis Invoice - Diatom Research 4,060.00
TOTAL 74,696.01 Grant-Making Activities 9,552.99
Website Maintenance 2,020.00
INCOME Monthly Account Fees 40.00
Subscription Payments 8,577.12 Other - Consultancy Services 300.00
Interest (Reserve) 100.10
Royalties from Diatom Research (T&F) 6,726.44 TOTAL 16,296.67
Other payments 0.00
TOTAL 15,403.66
Balances in Bank - 31 December 2024
Current Account 68,456.42
Reserve Account 5,346.58
(a) Balance 01 Jan + Income (Jan-Dec 2024) TOTAL 90,099.67
(b) Expenditure (Jan-Dec 2024) TOTAL 16,296.67 Cash in hand TOTAL 73,803.00
(a) - (b) = Balance 31 December (2024) 73,803.00

Keely Mills Honorary Treasurer (24-July-2025)

International Society for Diatom Research - Accounts January to December 2024

ISDR Capital Reserve Statement

Account No: 11130199 [Natwest] / 00037340 [CAF Bank] Account No: 11130199 [Natwest] / 00037340 [CAF Bank]
Date Transaction £ Credit £ Debit Balance
Balance brought forward from 2024 £ 5,311.58
31-Jan-24 Interest £ 6.96
 £ 5,318.54
29-Feb-24 Interest £ 6.13
 £ 5,324.67
28-Mar-24 Interest £ 5.92
 £ 5,330.59
30-Apr-24 Interest £ 6.99
 £ 5,337.58
31-May-24 Interest £ 6.57
 £ 5,344.15
28-Jun-24 Interest £ 5.94
 £ 5,350.09
31-Jul-24 Interest £ 7.01
 £ 5,357.10
30-Aug-24 Interest £ 5.96
 £ 5,363.06
16-Sep-24 Monthly account fee £ 5.00
 £ 5,358.06
26-Sep-24 Interest £ 0.85
 £ 5,358.91
15-Oct-24 Monthly account fee £ 5.00
 £ 5,353.91
15-Nov-24 Monthly account fee £ 5.00
 £ 5,348.91
16-Dec-24 Monthly account fee £ 5.00
 £ 5,343.91
27-Dec-24 Interest £ 2.67
 £ 5,346.58
Closing balance as of 31 December 2024 £ 5,346.58
ISDR Current Account Statement
Account No: 06433960 [Natwest] / 00037339 [CAF Bank]
Date Transaction £ Credit £ Debit Balance
Balance brought forward from 2023 £ 69,384.43
02-Jan-24 Subscription (Personal) - UK Bank Transfer £ 40.00
 £ 69,424.43
02-Jan-24 Big Idea Creative - Website Maintenance £ 85.00
 £ 69,339.43
02-Jan-24 Big Idea Creative - Website Maintenance £ 1,000.00
 £ 68,339.43
05-Jan-24 STRIPE - Membership Subscription Payments £ 5,886.74
 £ 74,226.17
08-Jan-24 STRIPE - Membership Subscription Payments £ 77.28
 £ 74,303.45
09-Jan-24 STRIPE - Membership Subscription Payments £ 86.78
 £ 74,390.23
10-Jan-24 STRIPE - Membership Subscription Payments £ 117.96
 £ 74,508.19
10-Jan-24 Subscription (Personal) - International Bank Transfer £ 497.80
 £ 75,005.99
11-Jan-24 STRIPE - Membership Subscription Payments £ 142.46
 £ 75,148.45
12-Jan-24 STRIPE - Membership Subscription Payments £ 62.64
 £ 75,211.09
15-Jan-24 STRIPE - Membership Subscription Payments £ 48.35
 £ 75,259.44
16-Jan-24 Support for Central European Diatom Meeting £ 2,654.69
 £ 72,604.75
16-Jan-24 IDS 2023 - ISDR Support International Transfer £ 527.50
 £ 72,077.25
17-Jan-24 STRIPE - Membership Subscription Payments £ 24.25
 £ 72,101.50
18-Jan-24 STRIPE - Membership Subscription Payments £ 116.60
 £ 72,218.10
18-Jan-24 Subscription (Personal) - International Bank Transfer £ 24.00
 £ 72,242.10
19-Jan-24 STRIPE - Membership Subscription Payments £ 39.32
 £ 72,281.42
19-Jan-24 Subscription (Personal) - International Bank Transfer £ 39.00
 £ 72,320.42
23-Jan-24 STRIPE - Membership Subscription Payments £ 38.64
 £ 72,359.06
24-Jan-24 STRIPE - Membership Subscription Payments £ 38.64
 £ 72,397.70
29-Jan-24 T & F Royalties £ 2,500.00
 £ 74,897.70
01-Feb-24 Big Idea Creative - Website Maintenance £ 85.00
 £ 74,812.70
02-Feb-24 STRIPE - Membership Subscription Payments £ 38.64
 £ 74,851.34
05-Feb-24 STRIPE - Membership Subscription Payments £ 78.64
 £ 74,929.98
05-Feb-24 Subscription (Personal) - International Bank Transfer £ 25.00
 £ 74,954.98
08-Feb-24 STRIPE - Membership Subscription Payments £ 63.82
 £ 75,018.80
15-Feb-24 STRIPE - Membership Subscription Payments £ 63.82
 £ 75,082.62
19-Feb-24 STRIPE - Membership Subscription Payments £ 23.82
 £ 75,106.44
20-Feb-24 STRIPE - Membership Subscription Payments £ 39.32
 £ 75,145.76
23-Feb-24 STRIPE - Membership Subscription Payments £ 38.64
 £ 75,184.40
26-Feb-24 T & F Royalties £ 4,226.44
 £ 79,410.84
26-Feb-24 Subscription (Personal) - International Bank Transfer £ 40.00
 £ 79,450.84
01-Mar-24 Big Idea Creative - Website Maintenance £ 85.00
 £ 79,365.84
12-Mar-24 STRIPE - Membership Subscription Payments £ 38.64
 £ 79,404.48
13-Mar-24 Subscription (Personal) - International Bank Transfer £ 25.00
 £ 79,429.48
14-Mar-24 Subscription (Personal) - International Bank Transfer £ 40.00
 £ 79,469.48
18-Mar-24 STRIPE - Membership Subscription Payments £ 38.64
 £ 79,508.12
22-Mar-24 Subscription (Personal) - International Bank Transfer £ 40.30
 £ 79,548.42
02-Apr-24 Big Idea Creative - Website Maintenance £ 85.00
 £ 79,463.42
22-Apr-24 STRIPE - Membership Subscription Payments £ 38.57
 £ 79,501.99
01-May-24 Big Idea Creative - Website Maintenance £ 85.00
 £ 79,416.99
17-May-24 Taylor & Francis Invoice - Diatom Research £ 4,060.00
 £ 75,356.99
20-May-24 STRIPE - Membership Subscription Payments £ 48.95
 £ 75,405.94
23-May-24 STRIPE - Membership Subscription Payments £ 48.95
 £ 75,454.89
28-May-24 STRIPE - Membership Subscription Payments £ 9.51
 £ 75,464.40
30-May-24 STRIPE - Membership Subscription Payments £ 39.32
 £ 75,503.72
03-Jun-24 Big Idea Creative - Website Maintenance £ 85.00
 £ 75,418.72
07-Jun-24 STRIPE - Membership Subscription Payments £ 39.32
 £ 75,458.04
19-Jun-24 STRIPE - Membership Subscription Payments £ 23.82
 £ 75,481.86
01-Jul-24 Big Idea Creative - Website Maintenance £ 85.00
 £ 75,396.86
01-Jul-24 Subscription (Personal) - International Bank Transfer £ 25.00
 £ 75,421.86
04-Jul-24 STRIPE - Membership Subscription Payments £ 38.64
 £ 75,460.50
24-Jul-24 Subscription (Personal) - International Bank Transfer £ 40.00
 £ 75,500.50
29-Jul-24 ECR Grant II - Benito £ 4,000.00
 £ 71,500.50
01-Aug-24 Big Idea Creative - Website Maintenance £ 85.00
 £ 71,415.50
06-Aug-24 STRIPE - Membership Subscription Payments £ 23.57
 £ 71,439.07
14-Aug-24 STRIPE - Membership Subscription Payments £ 23.57
 £ 71,462.64
23-Aug-24 North America Diatom Symposium £ 2,370.80
 £ 69,091.84
29-Aug-24 STRIPE - Membership Subscription Payments £ 23.32
 £ 69,115.16
09-Sep-24 STRIPE - Membership Subscription Payments £ 38.64
 £ 69,153.80
16-Sep-24 Monthly account fee £ 5.00
 £ 69,148.80
26-Sep-24 Interest £ 10.85
 £ 69,159.65
30-Sep-24 Big Idea Creative - Website Maintenance £ 85.00
 £ 69,074.65
30-Sep-24 STRIPE - Membership Subscription Payments £ 24.25
 £ 69,098.90
01-Oct-24 Big Idea Creative - Website Maintenance £ 85.00
 £ 69,013.90
14-Oct-24 STRIPE - Membership Subscription Payments £ 77.28
 £ 69,091.18
15-Oct-24 Monthly account fee £ 5.00
 £ 69,086.18
21-Oct-24 Liability Insurance (Profile Insurance LTD) £ 323.68
 £ 68,762.50
21-Oct-24 STRIPE - Membership Subscription Payments £ 62.71
 £ 68,825.21
01-Nov-24 Big Idea Creative - Website Maintenance £ 85.00
 £ 68,740.21
11-Nov-24 Almond Tree Consultancy - Transfer to CIO £ 300.00
 £ 68,440.21
15-Nov-24 Monthly account fee £ 5.00
 £ 68,435.21
02-Dec-24 Big Idea Creative - Website Maintenance £ 85.00
 £ 68,350.21
16-Dec-24 Monthly account fee £ 5.00
 £ 68,345.21
16-Dec-24 STRIPE - Membership Subscription Payments £ 38.32
 £ 68,383.53
27-Dec-24 Interest £ 34.25
 £ 68,417.78
30-Dec-24 STRIPE - Membership Subscription Payments £ 38.64
 £ 68,456.42
Closing balance as of 31 December 2024 £ 68,456.42
INCOME 2024 TOTAL £ 15,403.66
Subscription Payments
02-Jan-24 Subscription (Personal) - UK Bank Transfer £ 40.00
05-Jan-24 STRIPE - Membership Subscription Payments £ 5,886.74
08-Jan-24 STRIPE - Membership Subscription Payments £ 77.28
09-Jan-24 STRIPE - Membership Subscription Payments £ 86.78
10-Jan-24 STRIPE - Membership Subscription Payments £ 117.96
10-Jan-24 Subscription (Personal) - International Bank Transfer £ 497.80
11-Jan-24 STRIPE - Membership Subscription Payments £ 142.46
12-Jan-24 STRIPE - Membership Subscription Payments £ 62.64
15-Jan-24 STRIPE - Membership Subscription Payments £ 48.35
17-Jan-24 STRIPE - Membership Subscription Payments £ 24.25
18-Jan-24 STRIPE - Membership Subscription Payments £ 116.60
18-Jan-24 Subscription (Personal) - International Bank Transfer £ 24.00
19-Jan-24 STRIPE - Membership Subscription Payments £ 39.32
19-Jan-24 Subscription (Personal) - International Bank Transfer £ 39.00
23-Jan-24 STRIPE - Membership Subscription Payments £ 38.64
24-Jan-24 STRIPE - Membership Subscription Payments £ 38.64
02-Feb-24 STRIPE - Membership Subscription Payments £ 38.64
05-Feb-24 STRIPE - Membership Subscription Payments £ 78.64
05-Feb-24 Subscription (Personal) - International Bank Transfer £ 25.00
08-Feb-24 STRIPE - Membership Subscription Payments £ 63.82
15-Feb-24 STRIPE - Membership Subscription Payments £ 63.82
19-Feb-24 STRIPE - Membership Subscription Payments £ 23.82
20-Feb-24 STRIPE - Membership Subscription Payments £ 39.32
23-Feb-24 STRIPE - Membership Subscription Payments £ 38.64
26-Feb-24 Subscription (Personal) - International Bank Transfer £ 40.00
12-Mar-24 STRIPE - Membership Subscription Payments £ 38.64
13-Mar-24 Subscription (Personal) - International Bank Transfer £ 25.00
14-Mar-24 Subscription (Personal) - International Bank Transfer £ 40.00
18-Mar-24 STRIPE - Membership Subscription Payments £ 38.64
22-Mar-24 Subscription (Personal) - International Bank Transfer £ 40.30
22-Apr-24 STRIPE - Membership Subscription Payments £ 38.57
20-May-24 STRIPE - Membership Subscription Payments £ 48.95
23-May-24 STRIPE - Membership Subscription Payments £ 48.95
28-May-24 STRIPE - Membership Subscription Payments £ 9.51
30-May-24 STRIPE - Membership Subscription Payments £ 39.32
07-Jun-24 STRIPE - Membership Subscription Payments £ 39.32
19-Jun-24 STRIPE - Membership Subscription Payments £ 23.82
01-Jul-24 Subscription (Personal) - International Bank Transfer £ 25.00
04-Jul-24 STRIPE - Membership Subscription Payments £ 38.64
24-Jul-24 Subscription (Personal) - International Bank Transfer £ 40.00
06-Aug-24 STRIPE - Membership Subscription Payments £ 23.57
14-Aug-24 STRIPE - Membership Subscription Payments £ 23.57
29-Aug-24 STRIPE - Membership Subscription Payments £ 23.32
09-Sep-24 STRIPE - Membership Subscription Payments £ 38.64
30-Sep-24 STRIPE - Membership Subscription Payments £ 24.25
14-Oct-24 STRIPE - Membership Subscription Payments £ 77.28
21-Oct-24 STRIPE - Membership Subscription Payments £ 62.71
16-Dec-24 STRIPE - Membership Subscription Payments £ 38.32
30-Dec-24 STRIPE - MembershipSubscription Payments £ 38.64
TOTAL £ 8,577.12
Interest (to Capital Reserve Account)
31-Jan-24 Interest £ 6.96
29-Feb-24 Interest £ 6.13
28-Mar-24 Interest £ 5.92
30-Apr-24 Interest £ 6.99
31-May-24 Interest £ 6.57
28-Jun-24 Interest £ 5.94
31-Jul-24 Interest £ 7.01
30-Aug-24 Interest £ 5.96
26-Sep-24 Interest £ 10.85
27-Dec-24 Interest £ 34.25
26-Sep-24 Interest £ 0.85
27-Dec-24 Interest £ 2.67
TOTAL £ 100.10
Royalties
29-Jan-24 T & F Royalties £ 2,500.00
26-Feb-24 T & F Royalties £ 4,226.44
TOTAL £ 6,726.44
Other Income
TOTAL £ -
OUTGOINGS 2024 TOTAL £ 16,296.67
Liability Insurance
21-Oct-24 LiabilityInsurance(Profile Insurance LTD) £ 323.68
TOTAL £ 323.68
Taylor & Francis Journal Charges (Diatom Research)
17-May-24 Taylor & Francis Invoice - Diatom Research £ 4,060.00
TOTAL £ 4,060.00
Grant-Making Activities
16-Jan-24 Support for Central European Diatom Meeting £ 2,654.69
16-Jan-24 IDS 2023 - ISDR Support International Transfer £ 527.50
29-Jul-24 ECR Grant II - Benito £ 4,000.00
23-Aug-24 North America Diatom Symposium £ 2,370.80
TOTAL £ 9,552.99
Website Maintenance
02-Jan-24 Big Idea Creative - Website Maintenance £ 85.00
02-Jan-24 Big Idea Creative - Website Maintenance £ 1,000.00
01-Feb-24 Big Idea Creative - Website Maintenance £ 85.00
01-Mar-24 Big Idea Creative - Website Maintenance £ 85.00
02-Apr-24 Big Idea Creative - Website Maintenance £ 85.00
01-May-24 Big Idea Creative - Website Maintenance £ 85.00
03-Jun-24 Big Idea Creative - Website Maintenance £ 85.00
01-Jul-24 Big Idea Creative - Website Maintenance £ 85.00
01-Aug-24 Big Idea Creative - Website Maintenance £ 85.00
30-Sep-24 Big Idea Creative - Website Maintenance £ 85.00
01-Oct-24 Big Idea Creative - Website Maintenance £ 85.00
01-Nov-24 Big Idea Creative - Website Maintenance £ 85.00
02-Dec-24 BigIdea Creative - Website Maintenance £ 85.00
TOTAL £ 2,020.00
Monthly Account Fees
16-Sep-24 Monthly account fee [Reserve] £ 5.00
15-Oct-24 Monthly account fee [Reserve] £ 5.00
15-Nov-24 Monthly account fee [Reserve] £ 5.00
16-Dec-24 Monthly account fee [Reserve] £ 5.00
16-Sep-24 Monthly account fee [Current] £ 5.00
15-Oct-24 Monthly account fee [Current] £ 5.00
15-Nov-24 Monthly account fee [Current] £ 5.00
16-Dec-24 Monthlyaccount fee[Current] £ 5.00
TOTAL £ 40.00
Other - Consultancy Services
11-Nov-24 Almond Tree Consultancy - Transfer to CIO £ 300.00

TOTAL 300.00