Dear MARMAM Subscribers, The 6th issue of volume 51 (51.6) of Aquatic Mammals journal is available online and officially published Saturday, November 15th. 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 51.6 contents (** denotes open access): Cátia Freitas, Micaela Costa, Marta Dias, Laura Redaelli, Rita Ferreira, Filipe Alves, and Filipe Moura. (2025). First Sighting of the Pantropical Spotted Dolphin (Stenella attenuata) in the Madeira Archipelago: A New Northern Range in the East Atlantic Ocean. Aquatic Mammals, 51(6), 417-420. **Ronald A. Kastelein, Lean Helder-Hoek, Laura Van Acoleyen, John M. Terhune, Timothy Van Renterghem, and Dick Botteldooren. (2025). By Lifting Their Heads Above Water, Harbor Seals (Phoca vitulina) Can Reduce Their Exposure to Underwater Sounds Below 8 kHz. Aquatic Mammals, 51(6),421-437. **Cecilia Martínez Cantera, Sergio Díaz González, Ana María Fidalgo de las Heras, and Susana María Sánchez Rodríguez. (2025). Descriptive Analysis of the Social Network of South African Fur Seals (Arctocephalus pusillus pusillus) and California Sea Lions (Zalophus californianus) in Managed Care. Aquatic Mammals, 51(6), 438-447. Romyna A. Cruz-Vallejo, Fernando R. Elorriaga-Verplancken, Arturo B. Enríquez-García, Claudia J. Hernández-Camacho, Juan Carlos Herguera-García, Rodrigo Moncayo-Estrada, Arturo Tripp-Valdez, and Tenaya Norris. (2025). Stable Carbon and Nitrogen Isotope Variation of Guadalupe Fur Seal (Arctocephalus townsendi) Guard Fur and Underfur: Implications for Ecological Interpretations. Aquatic Mammals, 51(6), 448-456. Carla Cadena-Valdivia and Karina Acevedo-Whitehouse. (2025). Validation of a Glucometer for Serum Glucose Quantitation in Wild California Sea Lion (Zalophus californianus) Pups. Aquatic Mammals, 51(6), 457-463. **Janmanee Panyawai, Milica Stankovic, Eduardo Infantes, Damboia Cossa, Kanyanat Kaewutai, and Anchana Prathep. (2025). RGB and Multispectral UAV Mapping of Dugong Foraging Hotspots and Seagrass Beds in Thailand and Mozambique. Aquatic Mammals, 51(6), 464-481. **Hiroyuki Ozawa, Takahiro Yoshihama, Taro Hosokawa, Harumi Kami, and Ming-Shiou Jeng. (2025). The Japanese Dugong (Dugong dugon) Is Still Alive. Aquatic Mammals, 51(6), 482-484. **Kailey M. Pamperin, Heidi Lyn, Drew T. Suffoletta, Jessica N. Lewis, Rachel M. Giordano, Lindsey Johnson, and Moby Solangi. (2025). Staying Close to Home: Assessing Site Fidelity Patterns of Bottlenose Dolphins (Tursiops truncatus) in the Mississippi Sound. Aquatic Mammals, 51(6), 485-497. **Laura R. Perry, Frank Cipriano, Silvio Marchini, James Danoff-Burg, and Lorenzo von Fersen. (2025). Case Study: The Human Dimensions of Lahille’s Bottlenose Dolphin (Tursiops truncatus gephyreus) Conservation. Aquatic Mammals, 51(6), 498-514. **Paul Best, Lise Habib-Dassetto, Jules Cauzinille, Thierry Legou, Fabienne Delfour, and Marie Montan. (2025). Opportunistic Observation of Long-Finned Pilot Whales Interacting with a Solitary Humpback Whale in the Gascogne Gulf (Northwest Atlantic). Aquatic Mammals, 51(6), 515-520. **M. Tim Tinker, A. Keith Miles, Allie Weill, Jim Bodkin, and Terrie Williams. (2025). In Memoriam: Jim Estes. Aquatic Mammals, 51(6), 521-526. Kathleen M. Dudzinski, Ph.D. Director, Dolphin Communication Project kathleen@dcpmail.org www.dolphincommunicationproject.org