Dear MARMAM and ECS Talk subscribers, Apologies to those of you who will receive duplicate emails due to cross-posting. The following titles represent the contents of the most recent issue (Volume 45, issue 4, 2019) of Aquatic Mammals. For individuals with a print subscription, the double print copy of 45.3/45.4 will be mailed later this month. Aquatic Mammals is the longest running peer-reviewed journal dedicated to research on aquatic mammals and is published quarterly with manuscripts available as published PDFs in real time. Further information about the journal can be found at: http://www.aquaticmammalsjournal.org/ <http://www.aquaticmammalsjournal.org/> To submit a manuscript for publication consideration, please visit: http://am.expressacademic.org/actions/author.php <http://am.expressacademic.org/actions/author.php> Thank you for your continued interest in the journal and abstract postings. With regards, Kathleen M. Dudzinski, Ph.D. Editor, Aquatic Mammals Journal business@aquaticmammalsjournal.org <mailto:business@aquaticmammalsjournal.org> Kastelein, R. A., Ainslie, M. A., & van Kester, R. (2019). Behavioral Responses of Harbor Porpoises (Phocoena phocoena) to U.S. Navy 53C Sonar Signals in Noise. Aquatic Mammals, 45(4), 359-366. DOI: https://doi.org/10.1578/AM.45.4.2019.359 <https://doi.org/10.1578/AM.45.4.2019.359> Kondo, K, & Tsuchie, J. (2019). A Case Report: Hematology, Serum Chemistry Values, and Seasonal Change of Serum Testosterone and Testes Size in Pygmy Killer Whale (Feresa attenuata). Aquatic Mammals, 45(4), 367-373. DOI: https://doi.org/10.1578/AM.45.4.2019.367 <https://doi.org/10.1578/AM.45.4.2019.367> Hempstead, C., & Larson, S. (2019). Sea Otter (Enhydra lutris) Diet Diversity in Zoos and Aquariums. Aquatic Mammals, 45(4), 374-379. DOI: https://doi.org/10.1578/AM.45.4.2019.374 <https://doi.org/10.1578/AM.45.4.2019.374> Kastelein, R. A., Helder-Hoek, L., Booth, C., Nancy Jennings, N., & Leopold, M. (2019). High Levels of Food Intake in Harbor Porpoises (Phocoena phocoena): Insight into Recovery from Disturbance. Aquatic Mammals, 45(4), 380-388. DOI: https://doi.org/10.1578/AM.45.4.2019.380 <https://doi.org/10.1578/AM.45.4.2019.380> Pierina Mendoza, Javier Velasquez, Juan Sanchez, Leonardo Davila, Darwin Loja, Rony Riveros, and Carlos Vilchez. (2019). Growth Curve of Amazonian Manatee (Trichechus inunguis) in Captivity. Aquatic Mammals, 45(4), 389-397. DOI: https://doi.org/10.1578/AM.45.4.2019.389 <https://doi.org/10.1578/AM.45.4.2019.389> Kastelein, R. A., Huijser, L. A. E., Cornelisse, S., Helder-Hoek, L., Jennings, N., & Christ A. F. de Jong, C. A. F. (2019). Effect of Pile-Driving Playback Sound Level on Fish-Catching Efficiency in Harbor Porpoises (Phocoena phocoena). Aquatic Mammals, 45(4), 398-410. DOI: https://doi.org/10.1578/AM.45.4.2019.398 <https://doi.org/10.1578/AM.45.4.2019.398> Deng, X., Hao, Y., Serres, A., Wang, K., & Wang, D. (2019). Position at Birth and Possible Effects on Calf Survival in Finless Porpoises (Neophocaena asiaeorientalis). Aquatic Mammals, 45(4), 411-418. DOI: https://doi.org/10.1578/AM.45.4.2019.411 <https://doi.org/10.1578/AM.45.4.2019.411> Mpougas, E., Waggitt, J. J., Dendrinos, P., Adamantopoulou, S., & Karamanlidis, A. A. (2019). Mediterranean Monk Seal (Monachus monachus) Behavior at Sea and Interactions with Boat Traffic: Implications for the Conservation of the Species in Greece. Aquatic Mammals, 45(4), 419-424. DOI: https://doi.org/10.1578/AM.45.4.2019.419 <https://doi.org/10.1578/AM.45.4.2019.419> Filatova, O. A., Fedutin, I. D., Titova, O. V., Meschersky, I., G., Ovsyanikova, E. N., Antipin, M. A., Burdin, A. M., & Hoyt, E. (2019). First Encounter of the North Pacific Right Whale (Eubalaena japonica) in the Waters of Chukotka. Aquatic Mammals, 45(4), 425-429. DOI: https://doi.org/10.1578/AM.45.4.2019.425 <https://doi.org/10.1578/AM.45.4.2019.425> Robeck, T. R., St. Leger, J. A., Robeck, H. E., Nilson, E., & Dold, C. (2019). Evidence of Variable Agonistic Behavior in Killer Whales (Orcinus orca) Based on Age, Sex, and Ecotype. Aquatic Mammals, 45(4), 430-446. DOI: https://doi.org/10.1578/AM.45.4.2019.430 <https://doi.org/10.1578/AM.45.4.2019.430> Alvarado-Rybak, M., Haro, D., Oyarzún, P. A., Dougnac, C., Gutierrez, J., Toledo, N., Leiva, N., Peña, C., Cifuentes, C., Muñoz, N., Monti, E., Casado, D., Toro, F., Soto-Azat, C., & Pincheira, B. (2019). A Mass Stranding Event of Long-Finned Pilot Whales (Globicephala melas) in Southern Chile. Aquatic Mammals, 45(4), 447-455. DOI: https://doi.org/10.1578/AM.45.4.2019.447 <https://doi.org/10.1578/AM.45.4.2019.447> Oña, J., Duque, E., Garland, E. E., Seger, K., Narváez, M., Maldonado, J., & Denkinger, J. (2019). A Giant’s Dance: Underwater Social and Vocal Behavior of Humpback Whales (Megaptera novaeangliae) Recorded on the Northern Coast of Ecuador. Aquatic Mammals, 45(4), 456-446. DOI: https://doi.org/10.1578/AM.45.4.2019.456 <https://doi.org/10.1578/AM.45.4.2019.456>