1. Marine Biology and Ecology Research Centre, School of Marine Science and Engineering, Plymouth University, Drake Circus, Plymouth PL4 8AA, UK
2. Institute for Marine Resources and Ecosystem Studies (IMARES), Haringkade 1, IJmuiden 1976 CP, The Netherlands
3. School of Environmental Sciences, University of Liverpool, Nicholson Building, Liverpool L69 3GP, UK
4. Instituto Nazionale di Ocenaographie e di Geofisica Sperimentale (OGS), Borgo Grotta Gigante 42/C, Sgonico, Italy
5. National Institute for Marine Research and Development “Grigore Antipa”, Constanta 900581, Romania
6. A.O. Kovalevskiy Institute of Biology and Southern Seas, National Academy of Sciences of Ukraine 2, Nakhimov Av., Sevastopol, Crimea 99011, Ukraine
7. Marine Research Centre, Finnish Environment Institute (SYKE), PO Box 140, Helsinki FI-00251, Finland
8. National Institute of Oceanography, Israel Oceanographic and Limnological Research (NIO-IOLR), Tel Shikmona, Haifa 21080, Israel
9. Cefas, Pakefield Road, Lowestoft, Suffolk NR33 0HT, UK
10. Department of Zoology, Tel Aviv University, Tel Aviv 69778, Israel
11. Department of Fisheries Oceanography and Marine Ecology, National Marine Fisheries Research Institute, ul. Kollataja 1, Gdynia 81-332, Poland
12. Institute of Oceanology, BAS 9000 Varna, PO Box 152, Bulgaria
13. Institute of Marine Sciences, Middle East Technical University, PO Box 28, Erdemli 33731, Turkey
14. Hellenic Centre for Marine Research, Institute of Marine Biological Resources and Inland Waters, PO Box 2214, Heraklion 71003, Crete