1. Phycology Research Group and Center for Molecular Phylogenetics and Evolution, Ghent University, Ghent 9000, Belgium
2. Marine Ecology, Centre d’Estudis Avançats de Blanes-CSIC, Blanes/ Girona 17300, Spain
3. Coastal Biology Research Group, Faculty of Sciences and Centre for Advanced Scientific Research (CICA), University of A Coruña, A Coruña 15071, Spain
4. CCMAR-Centre of Marine Sciences, CIMAR, University of Algarve, Faro 8005-139, Portugal
5. CNRS, IRD, Mediterranean Institute of Oceanography (MIO), Aix Marseille University and Université de Toulon, Marseille UM 110, France
6. Natural History Museum, Research, Cromwell Road, London SW7 5BD, UK
7. Institute of Water Research (IRSA) - C.N.R., via Roma 3, Taranto 74123, Italy
8. Centro Oceanográfico de A Coruña (IEO, CSIC), Paseo Marítimo Alcalde Francisco Vázquez 10, A Coruña 15001, Spain
9. Marine and Freshwater Research Institute, Fornubúðir 5, 230 Hafnarfjörður, Iceland
10. Marine Environment Division, National Institute of Oceanography and Fisheries (NIOF), Cairo 11516, Egypt
11. The Steinhardt Museum of Natural History, Israel National Center for Biodiversity Studies, Tel Aviv University, Tel Aviv 69978, Israel
12. Institute of Marine Research, Nordnesgaten 50, Bergen 5005, Norway
13. National Institute of Oceanography, Israel Oceanographic & Limnological Research, Ltd., 8030, 31080 Haifa, Israel
14. ANEMOON Foundation, 2129 AA, Bennebroek, the Netherlands
15. Institut de Systématique, Évolution, Biodiversité (ISYEB), Muséum national d’Histoire naturelle, CNRS, Sorbonne Université, EPHE, Université des Antilles, Paris 75005, France
16. School of Biological Sciences, Queen’s University Belfast, Belfast BT9 5DL, Northern Ireland
17. InBIO Associate Laboratory, CIBIO, Research Center in Biodiversity and Genetic Resources, University of the Azores, Ponta Delgada 9501-801, Portugal
18. Facultat de Ciències, Universitat de Girona, Ma Aurèlia Capmany 69, Girona 17003, Spain
19. Departamento de Botánica, Ecología y Fisiología Vegetal, Universidad de La Laguna, Canary Islands 38200, Spain
20. Department of Environmental Sciences, Informatics & Statistics, University Ca’ Foscari, Mestre (Venice) 30172, Italy
21. Department of Biological Sciences, University of Bergen, Bergen 5006, Norway
22. University of Brest, CNRS, IRD, Ifremer, LEMAR, Plouzane F-29280, France
23. Department of Biology, Faculty of Arts and Sciences, Manisa Celal Bayar University, Muradiye, Manisa 45140, Türkiye
24. Vroutou 12, Athens 11141, Greece
25. ISEM, University of Montpellier, CNRS, IRD, Montpellier 34090, France
26. Meise Botanic Garden, Meise 1860, Belgium