Dear MARMAM Subscribers. The first issue of volume 52 (52.1) of Aquatic Mammals journal is available online and was published Thursday, January 15th. We added optional graphical abstracts for articles. Check them out! You will see the new issue on the home page of the journal web site (www.aquaticmammalsjournal.org <http://www.aquaticmammalsjournal.org/>). Further information about the journal can be found at: http://www.aquaticmammalsjournal.org/ To submit a manuscript for publication consideration, please visit: http://am.expressacademic.org/actions/author.php With regards, Kathleen M. Dudzinski, Ph.D. Editor, Aquatic Mammals Journal business@aquaticmammalsjournal.org <mailto:business@aquaticmammalsjournal.org> Issue 52.1 contents (** denotes open access): **Takashi Iwata, Taichi Matsumoto, Mayu I. Ogawa, Tomonari Akamatsu, Takahide Araki, and Satoko S. Kimura. (2026). A Possible Example of the Coexistence of Dolphins and Marine Economic Activity in Osaka Bay, Japan. Aquatic Mammals, 52(1), 1-7. Wanxin Liu, Yipei Wen, Yao Qian, and Lina Tang. (2026). Risk Assessment of Heavy Metal Exposure in Indo-Pacific Humpback Dolphins (Sousa chinensis) from Ingesting Fish in the Waters of Xiamen Bay. Aquatic Mammals, 52(1), 8-19. **Alex Vallejo-Ham, Nataly Castelblanco-Martínez, and Ana L. Pinel. (2026). Fatal Asphyxiation with Plastic Debris in a Melon-Headed Whale (Peponocephala electra, Gray, 1846) off the Coast of Honduras, and First Record of the Species for the Country. Aquatic Mammals, 52(1), 20-26. Louise Heitzmann, Pablo Pezzino, Aurélie Célérier, Ana Rubio-Garcia, Jean-Yves Barnagaud, and Sylvia Campagna. (2026). Behavioural Response of Harbour Seal (Phoca vitulina) Pups in Captivity to Food-Related Chemical Cues. Aquatic Mammals, 52(1), 27-32. **Nicole L. Sears, Stephen D. McCulloch, Holli C. Eskelinen, and Brian C. Balmer. (2026). Seasonal Distribution, Occurrence, and Site Fidelity of Bottlenose Dolphins (Tursiops spp.) in the Upper Florida Keys. Aquatic Mammals, 52(1), 33-46. **Patricia Gozalbes Aparicio, Raúl Míguez-Lozano, Juan Antonio Raga, Jose Luis Crespo Picazo, Francisco Muñoz, Mariana Saubidet, Emma Plá González, and Francisco Javier Aznar. (2026). Spirit in Motion: A Flukeless Bottlenose Dolphin Survives for Over Two Years in the Western Mediterranean. Aquatic Mammals, 52(1), 47-53. **Irina S. Trukhanova, Alexey V. Altukhov, and Vladimir N. Burkanov. (2026). Spotted Seal (Phoca largha) Abundance and Size Composition at Summer Haulouts in the Southwestern Bering Sea. Aquatic Mammals, 52(1), 54-69. **Jessica N. Lewis, Heidi Lyn, Lindsey E. Johnson, Drew T. Suffoletta, Kailey M. Pamperin, Rachel M. Giordano, and Moby Solangi. (2026). Instances of Human Interaction in Common Bottlenose Dolphins (Tursiops truncatus) in the Mississippi Sound. Aquatic Mammals, 52(1), 70-78. Yoshihiro Tanaka. (2026). Right Whale Remains from the Holocene (Quaternary) of Sapporo, Hokkaido, Northern Japan. Aquatic Mammals, 52(1), 79-83. Nicolás E. Álvarez-Herrera, Dalia C. Barragán-Barrera, Camilo E. Ortiz-Vásquez, Ann Carole Vallejo, Nohelia Farías-Curtidor, Edwin Gonzáles Murillo, Luis Antonio Lloreda, Yerson Gonzáles Murillo, Alan Giraldo, and Jennifer Bachmann. (2026). Using Community Science and Photo-Identification to Assess Cetacean Skin Health in the Northern Colombian Pacific. Aquatic Mammals, 52(1), 84-99.