1 National Research Council, Istituto per le Risorse Biologiche e le Biotecnologie Marine (CNR-IRBIM), Mazara del Vallo (TP), Italy. (FC) (Corresponding author) E-mail: francesco.colloca@cnr.it. ORCID iD: https://orcid.org/0000-0002-0574-2893 (GG) E-mail: germana.garofalo@iamc.cnr.it. ORCID iD: https://orcid.org/0000-0001-9117-6252 2 Department of Biology and Biotechnology “C. Darwin” BBCD, Sapienza University of Rome, Italy. 3 Stazione Zoologica Anton Dohrn, Lungomare Cristoforo Colombo (ex complesso Roosevelt), 90142 Palermo, Italy. (GM) E-mail: giacomo.milisenda@szn.it. ORCID iD: https://orcid.org/0000-0003-1334-9749 4 Department of Biology, University of Bari Aldo Moro, Bari, Italy. (FC) E-mail: francesca.capezzuto@uniba.it. ORCID iD: https://orcid.org/0000-0002-1498-0228 5 Department of Life and Environmental Sciences, Via Tommaso Fiorelli 1, University of Cagliari, Cagliari, Italy. (AC) E-mail: alessandrocau@unica.it. ORCID iD: https://orcid.org/0000-0003-4082-7531 6 MARBEC IFREMER, CNRS, IRD, Université Montpellier 2, Avenue Jean Monnet, CS 30171, 34203 Sète Cedex, France. (AJ) E-mail: Angelique.Jadaud@ifremer.fr. ORCID iD: https://orcid.org/0000-0001-6858-3570 7 Hellenic Agricultural Organization-DEMETER, Fisheries Research Institute of Kavala, 64007 Nea Peramos, Kavala, Greece. (SK) E-mail: skipariss@inale.gr. ORCID iD: https://orcid.org/0000-0002-0587-8889 8 Ministry for the Environment, Sustainable Development and Climate Change, Marsa, Malta. (RM) E-mail: reno.micallef@gov.mt. ORCID iD: https://orcid.org/0000-0003-1921-508X 9 Department of Biological, Geological and Environmental Sciences (BIGEA), University of Bologna, Bologna, Italy. (SM) E-mail: stefano.montanini2@unibo.it. ORCID iD: https://orcid.org/0000-0002-7286-7805 (MV) E-mail: maria.vallisneri@unibo.it. ORCID iD: https://orcid.org/0000-0002-6323-4328 10 Department of Fisheries and Marine Research (DFMR), Nicosia, Cyprus. (IT) E-mail: ithasitis@dfmr.moa.gov.cy. ORCID iD: https://orcid.org/0000-0002-0940-2212 11 Environmental Protection Agency Tuscany Region (ARPAT), Settore Mare, Livorno, Italy. (AV) E-mail: a.voliani@arpat.toscana.it. ORCID iD: https://orcid.org/0000-0002-0905-6284 12 Institute of Oceanography and Fisheries. Set. I. Mestrovica 63, 21000 Split, Croatia. (NV) E-mail: vrgoc@izor.hr. ORCID iD: https://orcid.org/0000-0002-5208-4512 13 COISPA Tecnologia & Ricerca, Via dei Trulli 18-20, 70126 Bari, Italy. (WZ) E-mail: zupa@coispa.eu. ORCID iD: https://orcid.org/0000-0002-2058-8652 14 Instituto Español de Oceanografía, Centre Oceanogràfic de les Balears, Palma de Mallorca, Spain. (FO) E-mail: xisco.ordinas@ba.ieo.es. ORCID iD: https://orcid.org/0000-0002-2456-2214

1 Intituto Español de Oceanografia, Centre Oceanogràfic de les Balears, Moll de Ponent s/n, 07015 Palma de Mallorca, Illes Baleares, Spain. (UF-A) (corresponding author) E-mail: fernandez.arcaya@gmail.com. ORCID iD: https://orcid.org/0000-0002-5588-3520 (MTF) E-mail: tfarriols@gmail.com. ORCID iD: https://orcid.org/0000-0002-7704-6504 (BG) E-mail: beatriz.guijarro@ieo.es. ORCID iD: https://orcid.org/0000-0002-2083-4681 (EM) E-mail: enric.massuti@ieo.es. ORCID iD: https://orcid.org/0000-0002-9524-5873 2 COISPA Tecnologia & Ricerca, Bari, Italy. (IB) E-mail: bitetto@coispa.it. ORCID iD: https://orcid.org/0000-0002-8497-1642 (GL) E-mail: lembo@coispa.it. ORCID iD: https://orcid.org/0000-0002-9899-6189 3 Intituto Español de Oceanografia, Centro Oceanográfico de Murcia, Varadero n 1, Apt. 2230740 San Pedro del Pinatar, Murcia, Spain. (AE) E-mail: antonio.esteban@ieo.es. ORCID iD: https://orcid.org/0000-0002-2896-7972 4 Intituto Español de Oceanografia, Centro Oceanográfico de Malaga, Puerto pesquero s/n 29640 Fuengirola, Malaga, Spain. (CG-R) E-mail: cristina.garcia@ieo.es. ORCID iD: https://orcid.org/0000-0003-2767-4200 (LGS) E-mail: gildesola@ieo.es. ORCID iD: https://orcid.org/0000-0003-1987-9716 5 UMR Marbec, Ifremer, IRD, Université de Montpellier, CNRS, Avenue Jean Monnet CS 30171 34203 Sète Cedex, France. (AJ) E-mail: Angelique.Jadaud@ifremer.fr. ORCID iD: https://orcid.org/0000-0001-6858-3570 (SV) E-mail: Sandrine.Vaz@ifremer.fr. ORCID iD: https://orcid.org/0000-0002-7365-8335 6 Institute of Marine Biological Resources and Inland Waters, Hellenic Centre for Marine Research (IMBRIW/HCMR), 46.7 km Athens, Greece. (SK) E-mail: stefanos@hcmr.gr. ORCID iD: https://orcid.org/0000-0003-3473-9084 (IM) E-mail: imaina@hcmr.gr. ORCID iD: https://orcid.org/0000-0001-5244-2722 7 Institute for Coastal Marine Environment (IAMC), National Research Council (CNR), Via L. Vaccara n 61, Mazara del Vallo (TP), 91026, Italy. 8 Present address; Stazione Zoologica Anton Dohrn di Napoli, Villa Comunale, 80121 Naples, Italy. (GM) E-mail: giacomo.milisenda@gmail.com. ORCID iD: https://orcid.org/0000-0003-1334-9749 9 University of Montenegro-Institute of Marine Biology, Dobrota bb, 85330 Kotor, Montenegro. (SP) E-mail: kascelanslavica@gmail.com. ORCID iD: https://orcid.org/0000-0001-6080-1959 10 University of Bari Aldo Moro (UNIBA), Department of Biology, Via Orabona 4, 70125 Bari, Italy. (LS) E-mail: letizia.sion@uniba.it. ORCID iD: https://orcid.org/0000-0002-0308-1841

1 Centro Oceanográfico de Málaga, Instituto Español de Oceanografía (IEO), Fuengirola, Málaga, Spain. (CG-R) (Corresponding author) E-mail: cristina.garcia@ieo.es. ORCID iD: https://orcid.org/0000-0003-2767-4200 (MH) E-mail: jm.hidalgo@ieo.es. ORCID iD: https://orcid.org/0000-0002-3494-9658 (MG) E-mail: maria.gonzalez@ieo.es. ORCID iD: https://orcid.org/0000-0003-4248-1765 (JLR) E-mail: jose.rueda@ieo.es. ORCID iD: https://orcid.org/0000-0003-4632-1523 2 Centro Oceanográfico de Baleares, Instituto Español de Oceanografía (IEO), Palma, Spain. (UF-A) E-mail: fernandez.arcaya@gmail.com. ORCID iD: https://orcid.org/0000-0002-5588-3520 3 Centro Interuniversitario di Biologia Marina ed Ecologia Applicata “G. Bacci” (CIBM), Livorno, Italy. (PC) E-mail: paolocarpentieri@hotmail.com. ORCID iD: https://orcid.org/0000-0001-6209-6333 4 COISPA-Tecnologia & Ricerca, Stazione Sperimentale per lo Studio delle Risorse del Mare, Bari, Torre a Mare, Italy. (PG) E-mail: gaudio@coispa.it. ORCID iD: https://orcid.org/0000-0002-8501-1168 5 MARBEC, Ifremer, Bd Jean Monnet, 34203, Sète Cedex, France. (AJ) E-mail: Angelique.Jadaud@ifremer.fr. ORCID iD: https://orcid.org/0000-0001-6858-3570 6 Department of Life and Environmental Sciences, University of Cagliari, Cagliari, Italy. (AM) E-mail: amulas@unica.it. ORCID iD: https://orcid.org/0000-0003-1635-691X 7 Hellenic Centre for Marine Research, Institute of Marine Biological Resources and Inland Waters, Heraklion, Crete, Greece. 8 Biology Department, University of Crete, Stavrakia, Heraklion, Crete, Greece. (PP) E-mail: notap@hcmr.gr. ORCID iD: https://orcid.org/0000-0002-8608-078X 9 Istituto per le Risorse Biologiche e le Biotecnologie Marine (IRBIM), Consiglio Nazionale delle Ricerche (CNR), Mazara del Vallo, Italy. (SV) E-mail: sergio.vitale@ cnr.it. ORCID iD: https://orcid.org/0000-0001-6063-4126 10 Department of Biology, University of Bari Aldo Moro, Bari, Italy. (GD) E-mail: gianfranco.donghia@uniba.it. ORCID iD: https://orcid.org/0000-0003-0952-9472

Letizia Sion 1, Walter Zupa 2, Crescenza Calculli 3, Germana Garofalo 4, Manuel Hidalgo 5,13, Angélique Jadaud 6, Evgenia Lefkaditou 7, Alessandro Ligas 8, Panagiota Peristeraki 9,10, Isabella Bitetto 2, Francesca Capezzuto 1, Roberto Carlucci 1, Antonio Esteban 11, Cristina Follesa 12, Beatriz Guijarro 13, Zdravko Ikica 14, Igor Isajlovic 15, Giuseppe Lembo 2, Chiara Manfredi 16, José Luis Pérez 13, Cristina Porcu 12, Ioannis Thasitis 17, George Tserpes 18, Pierluigi Carbonara 2

1 Instituto Español de Oceanografía, Centro Oceanográfico de Murcia, Calle Varadero, 1, 30740 San Pedro del Pinatar, Murcia, Spain. (EB) (Corresponding author) E-mail: elena.barcala@mu.ieo.es. ORCID iD: https://orcid.org/0000-0002-7444-3790 (JMB) E-mail: josem.bellido@vi.ieo.es. ORCID iD: https://orcid.org/0000-0002-6887-4391(AE) E-mail: antonio.esteban@ieo.es. ORCID iD: https://orcid.org/0000-0002-2896-7972 (MGP) E-mail: grazia.pennino@mu.ieo.es. ORCID iD: https://orcid.org/0000-0002-7577-2617 2 Università degli studi di Cagliari, Dipartimento di Scienze della Vita e dell’Ambiente, Via T. Fiorelli 1, 09126 Cagliari, Italy. (AB) E-mail: abellodi@unica.it. ORCID iD: https://orcid.org/0000-0002-9017-1692 3 COISPA Tecnologia e Ricerca, Stazione Sperimentale per lo Studio delle Risorse del Mare Via dei Trulli 18/20, 70126 Bari, Torre a Mare, Italy. (PC) E-mail: carbonara@coispa.it. ORCID iD: https://orcid.org/0000-0002-2529-2535 (LC) E-mail: casciaro@coispa.it. ORCID iD: https://orcid.org/0000-0003-4876-9874 4 Department of Biology, University of Bari, via Orabona 4, 70125 Bari, Italy. (RC) E-mail: roberto.carlucci@uniba.it. ORCID iD: https://orcid.org/0000-0002-9287-6936 5 IFREMER, Centre Halieutique Méditerranéen et Tropical, Laboratoire de Ressources Halieutiques, Bd Jean Monnet B.P. 171, 34203 Sète Cedex, France. (AJ) E-mail: Angelique.Jadaud@ifremer.fr. ORCID iD: https://orcid.org/0000-0001-6858-3570 6APLYSIA, Ricerche applicate all’ecologia e alla biologia marina, Via Menichetti 35, 57128 Livorno, Italy. (AM) E-mail: andrea.massaro@aplysia.it. ORCID iD: https://orcid.org/0000-0001-9224-3883 7 Hellenic Centre for Marine Research, Institute of Marine Biological Resources, P.O. Box 2214, 71003 Heraklion, Greece. 8 Biology Department, University of Crete, Heraklion, Crete, Greece. (PP) E-mail: notap@hcmr.gr. ORCID iD: https://orcid.org/0000-0002-8608-078X 9 Instituto Español de Oceanografía, Centro Oceanográfico de Málaga, 29640 Fuengirola, Málaga, Spain. (MJM) E-mail: mariajose.melendez@ieo.es. ORCID iD: https://orcid.org/0000-0001-7901-6176 (JLPG) E-mail: joseluis.perez@ma.ieo.es. ORCID iD: https://orcid.org/0000-0002-1684-0210 (FS) E-mail: paqui.salmeron@ieo.es. ORCID iD: https://orcid.org/0000-0001-8907-5444