Results 61 to 70 of about 24,053 (273)

Application of epigenetics to understand the demography of the Lahille’s bottlenose dolphin Tursiops truncatus gephyreus

Endangered Species Research
Estimation of age in wild cetaceans is pivotal for effective conservation, enabling insight into population demographics and long-term viability. Handling cetaceans can be challenging; therefore, developing remote sampling tools to assess age is critical.
A Barratclough, RC Genoves, L Schwacke, P Fruet, AC Tatsch, GK Himes Boor, ER Secchi, FM Gomez, CR Smith   +8 more
doaj   +1 more source

Cardiorespiratory coupling in the bottlenose dolphin (Tursiops truncatus)

Frontiers in Physiology, 2023
Introduction: The bottlenose dolphin (Tursiops truncatus) is an intermittent breather, where the breath begins with an exhalation followed by inhalation and an extended inter-breath interval ranging from 10 to 40 s. Breathing has been shown to alter both
A. Fahlman, A. Fahlman, A. Fahlman, J. C. Mcknight, A. M. Blawas, N. West, A. G. Torrente, K. Aoki   +7 more
doaj   +1 more source

Temporal changes in the dietary niche of sympatric seals provides insight into the role of competition in population declines

Oikos, EarlyView.
Competition theory suggests that interspecific prey competition can result in changes to the dietary niche, but obtaining timeseries of data from sympatric species experiencing temporal variation in competition is challenging. Scotland is an important area for two species of seals, but over the past 20 years, populations of harbour seals Phoca vitulina
Izzy Langley, Philip S. Hammond, Paul M. Thompson, Graham J. Pierce, Lindsay J. Wilson, Ailsa J. Hall, Gordon D. Hastie, Debbie J. F. Russell   +7 more
wiley   +1 more source

Accurate Epigenetic Aging in Bottlenose Dolphins (Tursiops truncatus), an Essential Step in the Conservation of at-Risk Dolphins

Journal of Zoological and Botanical Gardens, 2021
Epigenetics, specifically DNA methylation, allows for the estimation of animal age from blood or remotely sampled skin. This multi-tissue epigenetic age estimation clock uses 110 longitudinal samples from 34 Navy bottlenose dolphins (Tursiops truncatus),
Ashley Barratclough, Cynthia R. Smith, Forrest M. Gomez, Theoni Photopoulou, Ryan Takeshita, Enrico Pirotta, Len Thomas, Abby M. McClain, Celeste Parry, Joseph A. Zoller, Steve Horvath, Lori H. Schwacke   +11 more
doaj   +1 more source

A first assessment of operator compliance and dolphin behavioural responses during swim-with-dolphin programs for three species of Delphinids in the Azores [PDF]

, 2019
The popularity of swim-with wild dolphin programs around the world is fast growing, with the studies required to investigate their impact lagging behind. In the Azores, species targeted include the short-beaked common (Delphinus delphis), the bottlenose (
Azevedo, José M. N., Cecchetti, Arianna, Gordon, Jonathan, Stockin, K. A.   +3 more
core  

Distinguishing personal belief from scientific knowledge for the betterment of killer whale welfare – a commentary [PDF]

, 2020
We contest publication of Marino et al. regarding captive killer whale (Orcinus orca) welfare because of misrepresentations of available data and the use of citations that do not support assertions. Marino et al. misrepresent stress response concepts and
Abramson, Charles I., Almunia, Javier, Dudzinski, Kathleen M, Feucht, Todd, Frick, Erin, Hill, Heather M, Lilly, Malin, Makecha, Radhika, Stafford, Grey, Zaccaroni, Annalisa   +9 more
core  

Programmed unmanned aerial vehicles show great potential for monitoring marine megafauna in specific areas of interest

Remote Sensing in Ecology and Conservation, EarlyView.
Targeted conservation measures are contingent on robust knowledge of spatio‐temporal animal distribution in areas of interest. We explore unmanned aerial vehicle (UAV) transect monitoring as a novel method for standardized digital aerial surveys of marine megafauna by investigating the fine‐resolution spatio‐temporal distribution of harbour porpoises ...
Dinah Hartmann, Valdemar Palmqvist, Johanna Stedt   +2 more
wiley   +1 more source

Monitoring bottlenose dolphin leukocyte cytokine mRNA responsiveness by qPCR. [PDF]

PLoS ONE, 2017
Both veterinarians caring for dolphins in managed populations and researchers monitoring wild populations use blood-based diagnostics to monitor bottlenose dolphin (Tursiops truncatus) health.
Amelia Ruth Hofstetter, Kirsten C Eberle, Stephanie K Venn-Watson, Eric D Jensen, Tracy J Porter, Theresa E Waters, Randy E Sacco   +6 more
doaj   +1 more source

Multi‐Platform Deployments of Low‐Cost Devices for Cetacean Passive Acoustic Monitoring

Remote Sensing in Ecology and Conservation, EarlyView.
Recent advances in affordable, user‐friendly devices offer new opportunities to overcome cost constraints of underwater passive acoustic monitoring (PAM) and expand acoustic data collection. In this study, we deployed low‐cost acoustic recorders and underwater cameras across a range of platforms in the Western Mediterranean, including fishing gear ...
Greta Jankauskaite, François Poisson, Irati Abascal, Javier Menéndez‐Blázquez, Clara Cánovas Pérez, Sofia Conti, Ricardo Sagarminaga, Juan Antonio Raga, David March   +8 more
wiley   +1 more source

Health reference intervals and values for common bottlenose dolphins (Tursiops truncatus), Indo-Pacific bottlenose dolphins (Tursiops aduncus), Pacific white-sided dolphins (Lagenorhynchus obliquidens), and beluga whales (Delphinapterus leucas).

PLoS ONE, 2021
This study reports comprehensive clinical pathology data for hematology, serum, and plasma biochemistry reference intervals for 174 apparently healthy common bottlenose dolphins (Tursiops truncatus) and reference values for 27 Indo-Pacific bottlenose ...
Lisa K Lauderdale, Michael T Walsh, Kevin A Mitchell, Douglas A Granger, Jill D Mellen, Lance J Miller   +5 more
doaj   +1 more source