Peer review is the driving force of journal development, and reviewers are gatekeepers who ensure that Oceans maintains its standards for the high quality of its published papers. Thanks to the cooperation of our reviewers, in 2020, the median time to first decision was 28.5 days. The editors would like to express their sincere gratitude to the following reviewers for their precious time and dedication, regardless of whether the papers were finally published:
| Agrafiotis, Panagiotis | Lobo, Francisco José |
| Angeletti, Lorenzo | López, Bruno Díaz |
| Berenshtein, Igal | Lorenzo-Morales, Jacob |
| Bermudez, Rafael | Lutcavage, Molly |
| Berta, Annalisa | Martín-Martín, Manuel |
| Blasco, Julian | Mastronuzzi, Giuseppe |
| Brown, Barbara | Meekan, Mark |
| Carlucci, Roberto | Meeuwig, Jessica |
| Chambers, Christopher | Meier, Watlter |
| Chen, Chen-Tung Arthur | Methion, Severine |
| Cipriano, Giulia | Molodtsova, Tina |
| Claar, Danielle C. | Montagna, Paolo |
| Clua, Eric | Morton, Brian |
| Colloca, Francesco | Nardelli, Bruno Buongiorno |
| Constantinos, Papaconstantinou | Obura, David |
| Copilaş-Ciocianu, Denis | Ohshimo, Seiji |
| Devred, Emmanuel | Orani, Anna Maria |
| Downs, Craig | Ormond, Rupert |
| Duarte, Bernardo | Palka, Debra L. |
| Dunn, Ryan | Peng, Melinda S. |
| Elko, Nicole | Pereira, Leonel |
| Elliser, Cindy R. | Pérez-Alberti, Augusto |
| Engman, Augustin | Pietroluongo, Guido |
| Faggio, Caterina | Pinto, Diana Cláudia |
| Faillettaz, Robin | Pisapia, Chiara |
| Fallati, Luca | Piwetz, Sarah |
| Farfán, Gabriela Abad | Planas Oliver, Miguel |
| Feichtner, Isabel | Proust, Jean-Noel |
| Fernández, Emilio | Robadue, Don |
| Fiore, Vincenzo | Robert, Colin |
| Fitt, William K. | Rosa, Rui |
| Foo, Shawna | Rosales, Stephanie M. |
| Forster, Rodney | Rosso, Antonietta |
| Fudeyasu, Hironori | Satoh, Masaki |
| Fukunaga, Atsuko | Saylam, Kutalmis |
| Gardiner, Naomi | Scheffers, Sander |
| Garofalo, Germana | Scheufele, Gabriela |
| Gehman, Alyssa Lois M. | Schmitt, Francois G. |
| Gerlach, Gabriele | Schrallhammer, Martina |
| Goulet, Tamar L. | Schreck, Carl |
| Harada, Naomi | Schunter, Celia |
| Harborne, Alistair | SHEPPARD, Charles |
| Hawes, Steven | Sparenberg, Ole |
| Hernàndez-Borges, Javier | Strömberg, Susanna |
| Hintz, Christopher J. | Sutherland, Leigh |
| Hoeksema, Bert | Sylaios, Georgios |
| Horowitz, Jeremy | Tchernov, Dan |
| Huntington, Henry | Thewissen, Johannes G.M. |
| Illing, Björn | Tiedemann, Maik |
| Jay Andres, Michael | Traganos, Dimosthenis |
| Johnson, Shawn | Trnski, Thomas |
| Jolles, Jolle W | Uye, Shin Ichi |
| Jury, Mark | Vale, Carlos Alberto Garcia Do |
| Kauhala, Kaarina | Van Duyl, Fleur |
| Kavousi, Javid | Vincent, Flora Julie |
| Kerem, Dan | Waniek, Joanna J. |
| Knapp, Ken | Watson, Eleanor |
| Knutson, Thomas R | Weis, Virginia |
| Kodama, Taketoshi | Wicksten, Mary |
| Kossin, James | Williamson, Jane |
| Lambert, Olivier | Wirsing, Aaron J. |
| Landaeta, Mauricio F. | Witkowski, Andrzej |
| Landry, Craig | Yamaguchi, Atsushi |
| Lardicci, Claudio | Yunev, Oleg A. |
| Lemieux, Jean-Francois | Zhang, Lei |
| Leopold, Mardik |
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