Article
Physiology
A. Fahlman, J. C. Mcknight, A. M. Blawas, N. West, A. G. Torrente, K. Aoki
Summary: This study examined the effects of expiration and inspiration on the if H response in bottlenose dolphins. The results showed that inspiration increased if H, while expiration decreased if H.
FRONTIERS IN PHYSIOLOGY
(2023)
Article
Biology
Maria del Carmen Fuentes-Albero, Silvia Abril Sanchez, Jose Luis Ros-Santaella, Eliana Pintus, Chiara Luongo, Sara Ruiz Diaz, Carlos Barros Garcia, Maria Jesus Sanchez Calabuig, Daniel Garcia Parraga, Francisco Alberto Garcia Vazquez
Summary: Dolphins are well-adapted aquatic mammals in captivity and are ideal for studying their reproductive features for conservation programs. Sperm shape and dimensions differ between male dolphins and can be classified into subpopulations, which are influenced by testosterone levels and refrigeration. This study provides new insights into sperm competition in dolphins and has implications for other endangered aquatic mammalian species.
Article
Anatomy & Morphology
Tommaso Gerussi, Jean-Marie Graic, Antonella Peruffo, Mehdi Behroozi, Lara Schlaffke, Stefan Huggenberger, Onur Guentuerkuen, Bruno Cozzi
Summary: This study successfully identified the homologue of the prefrontal cortex (PFC) in bottlenose dolphins using diffusion-weighted imaging. The results showed a similar connectivity pattern between the dolphin PFC and the human PFC. The rotation of the PFC in dolphins might be a result of evolutionary processes.
BRAIN STRUCTURE & FUNCTION
(2023)
Article
Behavioral Sciences
F. Blake Morton, Lauren M. Robinson, Sabrina Brando, Alexander Weiss
Summary: Comparative studies can help identify selective pressures that contributed to species differences in the number and composition of personality domains. Despite being adapted to an aquatic lifestyle and last sharing a common ancestor with primates some 95 million years ago, bottlenose dolphins resemble nonhuman primate species in several behavioral and cognitive traits.
JOURNAL OF COMPARATIVE PSYCHOLOGY
(2021)
Article
Agriculture, Dairy & Animal Science
Marina Salas, Amanda Fernandez-Fontelo, Eva Martinez-Nevado, Jesus Fernandez-Moran, Agustin Lopez-Goya, Xavier Manteca
Summary: The assessment of animals' personalities by caretakers can be a reliable method to help make appropriate management decisions, such as breeding success and creating social groups. This study focused on evaluating the reliability of caretakers' ratings when assessing dolphins' personalities, showing a good degree of agreement within raters and centers, but also detecting systematic score mean differences.
Article
Environmental Sciences
Leslie B. Hart, Miranda Dziobak, Randall S. Wells, Bonnie Ertel, John Weinstein
Summary: The oceans are polluted with trillions of plastic particles, mainly microplastics, which have been found in marine organisms. Bottlenose dolphins in Sarasota Bay have shown exposure to prevalent phthalates, possibly from plastic sources. A recent study detected microplastic particles in gastric samples of free-ranging dolphins, suggesting potential microplastic exposure to humans through contaminated seafood.
FRONTIERS IN MARINE SCIENCE
(2022)
Article
Agriculture, Dairy & Animal Science
Valentina Corrias, Giovanni de Vincenzi, Maria Ceraulo, Virginia Sciacca, Antonello Sala, Giuseppe Andrea de Lucia, Francesco Filiciotto
Summary: The presence of dolphins in fishing areas can lead to economic losses for fishermen due to their depredation activities, and bycatch events are a major cause of mortality for conservation species. This study focuses on the acoustic parameters detected in whistle signals of Bottlenose dolphins during a bycatch event in the Adriatic Sea, revealing their acoustic plasticity and ability to communicate discomfort through their vocal repertoire.
Article
Biology
Ding Zhang, Yifan Wang, Joaquin Gabaldon, Lisa K. Lauderdale, Lance J. Miller, Kira Barton, Kenneth Alex Shorter
Summary: This study investigates the benefits of a fluke-and-glide gait for bottlenose dolphins in terms of cost of transport. The results show that the fluke-and-glide gait enhances the horizontal swimming efficiency of these dolphins.
JOURNAL OF EXPERIMENTAL BIOLOGY
(2023)
Article
Behavioral Sciences
Bruno Diaz Lopez
Summary: This study examines the variations in the rate of social-signal production in free-ranging bottlenose dolphins and finds that it is related to the sex of the partner, mating season, and social affiliation. The study also suggests that the composition of the dyad and context-specific social-signals are influenced by seasonal changes in vocal behavior.
Article
Environmental Sciences
Ruth H. H. Carmichael, Matthew R. R. Hodanbosi, Mackenzie L. L. Russell, Noel L. L. Wingers
Summary: Human activity, through interaction and response efforts, has an impact on marine mammal stranding rates. A study on bottlenose dolphins in the northern Gulf of Mexico found an increase in strandings following the Deepwater Horizon oil spill. The case study in Alabama revealed spatial and temporal variations in strandings due to human influences. These findings are important for assessing damage, resource management and education, and the influence of response and monitoring agencies on stranding datasets.
FRONTIERS IN ENVIRONMENTAL SCIENCE
(2022)
Article
Virology
Lea Luciani, Geraldine Piorkowski, Xavier De Lamballerie, Koen Van Waerebeek, Marie-Francoise Van Bressem
Summary: This study reports the identification of cetacean poxvirus (CePV) genomes in skin samples of common bottlenose dolphins from Peru. The genomes of these virus samples were found to be closely related to viruses infecting dolphins and suggest a long-standing co-evolution between the virus and its host.
Article
Veterinary Sciences
Jennifer P. Russell, Steven D. Osborn, Marina Ivancic, Juan J. Aristizabal-Henao, John A. Bowden, Nancy Stedman, Nicole Stacy
Summary: A 19-year-old bottlenose dolphin presented with inappetence and avoidant behavior. Treatment was administered to reduce the pleural effusion, but the condition eventually recurred and euthanasia was elected. Necropsy confirmed severe pleural effusion, pleural fibrosis, and mediastinal fibrosis in the dolphin.
JAVMA-JOURNAL OF THE AMERICAN VETERINARY MEDICAL ASSOCIATION
(2022)
Article
Environmental Sciences
Giuseppe Sciancalepore, Guido Pietroluongo, Cinzia Centelleghe, Massimo Milan, Marco Bonato, Giorgia Corazzola, Sandro Mazzariol
Summary: PFAS are a group of chemicals widely used in commercial products and industrial applications, known for their persistence and toxicity. The study found PFAS in bottlenose dolphins in the North Adriatic Sea, highlighting the need to investigate the impact of these substances on marine mammals. The results provide a baseline for further research on PFAS accumulation in marine mammals and emphasize the importance of Environmental and Tissue Banks for retrospective analyses.
ENVIRONMENTAL POLLUTION
(2021)
Article
Agriculture, Dairy & Animal Science
Miranda K. Dziobak, Randall S. Wells, Emily C. Pisarski, Ed F. Wirth, Leslie B. Hart
Summary: This study investigated the exposure of bottlenose dolphins to phthalates and its correlation with hormone levels, and found a positive relationship between thyroid hormones and the concentration of a specific phthalate metabolite.
Article
Environmental Sciences
John Kucklick, Ashley Boggs, Kevin Huncik, Amanda Moors, Elizabeth Davis, Gina Ylitalo, Mary McConnell, Christina Makris, Randall S. Wells
Summary: Legacy persistent organic pollutants (POPs) in common bottlenose dolphins from Sarasota Bay have been declining from 2000 to 2016, with different rates of decline for different POP classes and classifications. The decline in POPs is highest in adult males and lowest in calves. The POP trends appear to have stabilized since 2009.
FRONTIERS IN MARINE SCIENCE
(2022)