Results 21 to 30 of about 488,894 (185)

Prevalence of external injuries in small cetaceans in Aruban waters, southern Caribbean.

open access: yesPLoS ONE, 2014
Aruba, located close to the coasts of Colombia and Venezuela, is one of the most densely populated islands in the Caribbean and supports a wide range of marine-related socio-economic activities.
Jolanda A Luksenburg
doaj   +1 more source

Cetaceans Humerus Radiodensity by CT: A Useful Technique Differentiating between Species, Ecophysiology, and Age

open access: yesAnimals, 2022
Cetaceans are mammals that underwent a series of evolutionary adaptations to live in the aquatic environment, including morphological modifications of various anatomical structures of the skeleton and their bone mineral density (BMD); there are few ...
Francesco Maria Achille Consoli   +7 more
doaj   +1 more source

Dolphins adjust species-specific frequency parameters to compensate for increasing background noise. [PDF]

open access: yesPLoS ONE, 2015
An increase in ocean noise levels could interfere with acoustic communication of marine mammals. In this study we explored the effects of anthropogenic and natural noise on the acoustic properties of a dolphin communication signal, the whistle.
Elena Papale   +4 more
doaj   +1 more source

First record of a white rough-toothed dolphin (Steno bredanensis) off West Africa including notes on rough-toothed dolphin surface behaviour [PDF]

open access: yes, 2010
In June 2009, a white rough-toothed dolphin (Steno bredanensis) calf was photographed in a group of at least 50 dolphins in the southern Gulf of Guinea, 95 nauticol miles off the Gabon coast (01°45'S 007°29'E), West Africa. Reports of unusually pigmented
de Boer, M.N.   +2 more
core   +1 more source

Synchronous and Rhythmic Vocalizations and Correlated Underwater Behavior of Free-ranging Atlantic Spotted Dolphins (Stenella frontalis) and Bottlenose Dolphins (Tursiops truncatus) in the Bahamas [PDF]

open access: yesAnimal Behavior and Cognition, 2015
Since 1985 a resident community of Atlantic spotted dolphins (Stenella frontalis), and bottlenose dolphins (Tursiops truncatus), have been studied underwater in the Bahamas.
Denise L. Herzing
doaj   +1 more source

Molecular Assessment of Mating Strategies in a Population of Atlantic Spotted Dolphins

open access: yesPLOS ONE, 2015
Similar to other small cetacean species, Atlantic spotted dolphins (Stenella frontalis) have been the object of concentrated behavioral study. Although mating and courtship behaviors occur often and the social structure of the population is well-studied, the genetic mating system of the species is unknown.
Michelle L Green   +2 more
openaire   +4 more sources

Exodus! Large-scale displacement and social adjustments of resident Atlantic spotted dolphins (Stenella frontalis) in the Bahamas.

open access: yesPLoS ONE, 2017
Over the last 20 years, significant habitat shifts have been documented in some populations of cetaceans. On Little Bahama Bank (LBB) there are sympatric communities of resident Atlantic spotted dolphins (Stenella frontalis) and bottlenose dolphins ...
Denise L Herzing   +4 more
doaj   +1 more source

Records of Isistius sp. (Elasmobranchii: Squaliformes: Dalatiidae), from the Azores archipelago, inferred by fresh bite marks in dolphins [PDF]

open access: yesActa Ichthyologica et Piscatoria
The marine waters around the Azores archipelago have been studied for quite a long time. Deeper areas, however, were historically poorly accessible and only now previously unreported species are recorded regularly.
Luís M. D. Barcelos   +2 more
doaj   +3 more sources

Toothed Whales Have Black Neurons in the Blue Spot

open access: yesVeterinary Sciences, 2022
Neuromelanin (NM) is a dark polymer pigment that is located mostly in the human substantia nigra, and in the locus ceruleus, referred to as “the blue spot”.
Simona Sacchini   +8 more
doaj   +1 more source

Acoustic behaviour of Risso's dolphins, Grampus griseus, in the Canary Islands, Spain [PDF]

open access: yes, 2013
The Risso's dolphin (Grampus griseus) is a poorly studied species, particularly with respect to its acoustic behaviour. The little we know about Risso's dolphin acoustics shows that they are an interesting case study given that they combine acoustic ...
Neves, Silvana
core   +2 more sources

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