Results 71 to 80 of about 3,951 (203)

Correcting Lipid Extraction Effects on Nitrogen Isotopic Values (δ15N) in Cetacean Skin

Marine Mammal Science, Volume 42, Issue 2, April 2026.
ABSTRACT Stable isotopes of carbon (δ13C) and nitrogen (δ15N) are widely used to study the feeding ecology of cetaceans, as they provide critical insights into diet and migratory behaviors. Lipids in tissues may bias the interpretation of δ13C. Because of this, lipids need to be extracted before measuring stable isotope ratios, but their removal may ...
Jory Cabrol, Ève Rioux, Richard Sears, Joanie Van De Walle, Cory J. D. Matthews, Véronique Lesage   +5 more
wiley   +1 more source

Molecular Assessments, Statistical Effectiveness Parameters and Genetic Structure of Captive Populations of Tursiops truncatus Using 15 STRs

Animals, 2022
Genetic analysis is a conventional way of identifying and monitoring captive and wildlife species. Knowledge of statistical parameters reinforcing their usefulness and effectiveness as powerful tools for preserving diversity is crucial.
Rocío Gómez, Rocío M. Neri-Bazán, Araceli Posadas-Mondragon, Pablo A. Vizcaíno-Dorado, Jonathan J. Magaña, José Leopoldo Aguilar-Faisal   +5 more
doaj   +1 more source

Marine Mammals in the Anthropocene: Developing a Systematic Evidence Base of Threats to Nineteen Species

Mammal Review, Volume 56, Issue 1, March 2026.
Marine mammals are vulnerable to a variety of anthropogenic threats, yet a global systematic map of the literature for 19 species found both spatial and temporal disparity in research effort between threats and between species. There are knowledge gaps for species and threats, with effort unequal across many species' ranges.
Emily L. Hague, Rachael R. Sinclair, Joanna L. Kershaw, Davina Derous, Ross M. Culloch, Carol E. Sparling, Nicholas Baker‐Horne, Marija Sciberras, Teresa F. Fernandes, Lauren H. McWhinnie   +9 more
wiley   +1 more source

Do Marine Mammals Diversify More Slowly Than Non‐Marine Mammals?

Journal of Biogeography, Volume 53, Issue 1, January 2026.
ABSTRACT Aim Species richness is generally lower in marine than in terrestrial ecosystems, but the reasons behind this disparity remain unclear. This study examines whether marine mammals diversify at a slower pace than their non‐marine counterparts, aiming to shed light on the factors explaining potential diversification differences among them ...
Adriana Oliver, Graciela Sotelo, Sofía Galván, Iván Rey‐Rodríguez, Adrián Castro‐Insua, Sara Gamboa, Marta Matamala‐Pagès, Pedro Beca‐Carretero, Eduardo Méndez‐Quintas, Andrea Serodio, Sara Varela   +10 more
wiley   +1 more source

A PLIOCENE GRAY WHALE (ESCHRICHTIUS SP.) FROM THE EASTERN NORTH ATLANTIC

Rivista Italiana di Paleontologia e Stratigrafia, 2020
The gray whale Eschrichtius robustus, the only living member of the eschrichtiid lineage, currently inhabits only the North Pacific. Interestingly, however, the holotypes of both E.
CHENG-HSIU TSAI, ALBERTO COLLARETA, MARK BOSSELAERS   +2 more
doaj   +1 more source

The larger the cetacean, the more stationary their sleep? Thermoregulatory constraints on the sleep behaviour of captive cetaceans

Journal of Zoology, Volume 327, Issue 4, Page 376-385, December 2025.
Cetaceans face thermal challenges when sleeping underwater. Our study found that smaller body size correlated with more swim sleep and less stationary sleep, while the opposite was true for larger cetaceans. Additionally, bottlenose dolphins increased swim sleep at lower ambient temperatures, suggesting a sleep strategy influenced by body size and ...
K. Aota, Y. Sekiguchi, D. M. Kikuchi
wiley   +1 more source

Within‐Ecosystem Comparison of Bigmouth Buffalo Ictiobus cyprinellus and Common Carp Cyprinus carpio Reveals Diverging Population Trajectories, Declining Recruitment, and a Lifespan of 148 Years

Ecology and Evolution, Volume 15, Issue 11, November 2025.
Within‐ecosystem comparison of invasive common carp and native bigmouth buffalo reveals recruitment gaps for bigmouth buffalo longer than any other animal and lifespans approaching 150 years. In the post‐dam era, invasive common carp are increasing in number while native bigmouth buffalo are declining. ABSTRACT The bigmouth buffalo Ictiobus cyprinellus
Alec R. Lackmann, Jeff Sereda, James Villeneuve, Michelle Foley, Mike Pollock, Reid Bryshun, Katlin McCallum, Ethan Englot, Megan Zak, Cole Rehbein, Ewelina S. Bielak‐Lackmann, Mark E. Clark   +11 more
wiley   +1 more source

Pleistocene survival of an archaic dwarf baleen whale (Mysticeti: Cetotheriidae).

Naturwissenschaften, 2013
Pliocene baleen whale assemblages are characterized by a mix of early records of extant mysticetes, extinct genera within modern families, and late surviving members of the extinct family Cetotheriidae. Although Pleistocene baleen whales are poorly known, thus far they include only fossils of extant genera, indicating late Pliocene extinctions of ...
openaire   +3 more sources

Using spatial capture–recapture methods to estimate long‐term spatiotemporal variation of a wide‐ranging marine species

Ecography, Volume 2025, Issue 10, October 2025.
Determining population status to inform mitigation of anthropogenic threats requires statistical approaches that investigate spatial and temporal variation. In the face of climate change it is increasingly important to differentiate between changes in population size and redistributions of populations.
Georgina Whittome, John Calambokidis, Philip S. Hammond, Sophie Smout, Chris Sutherland   +4 more
wiley   +1 more source

Marine Mammal Species of India [PDF]

, 2012
Central Marine Fisheries Research Institute has collected and published information on occasional strandings, sightings and gear entanglement of marine mammals for more than 50 years from a vast network of trained field staff located at its research and ...
Jeyabaskaran, R, Vivekanandan, E
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