Results 71 to 80 of about 4,118 (197)

Another polymorphic mitochondrial genome of Grampus griseus and phylogeny of family Delphinidae

open access: yesMitochondrial DNA. Part B. Resources, 2021
Risso’s dolphin (Grampus griseus Cuvier, 1812) is the only species of genus Grampus and a cosmopolitan marine inhabitant. Here, we report a polymorphic complete mitochondrial genome of G. griseus.
Jayan Duminda M. Senevirathna   +7 more
doaj   +1 more source

Population structure and genetic diversity of false killer whales (Pseudorca crassidens) in New Zealand waters: preliminary results

open access: yesNew Zealand Journal of Marine and Freshwater Research, Volume 59, Issue 4, Page 670-684, December 2025.
ABSTRACT False killer whales (Pseudorca crassidens) are globally distributed cetaceans, often found in deep oceanic waters but occasionally near coastlines. Despite their broad distribution, information on their abundance, genetics, and ecology remains limited.
Gabriela Tezanos‐Pinto   +5 more
wiley   +1 more source

Ethnoecology of small cetaceans: interactions between an artisanal fishery and dolphins in northern Rio de Janeiro, Brazil [PDF]

open access: yesBiotemas, 2012
Studies in northern Rio de Janeiro indicate there are interactions between fisheries and cetaceans, but there are no studies that focus on the knowledge fishermen have about these animals.
Ana Paula Madeira Di Beneditto   +2 more
doaj  

How to define a dolphin “group”? Need for consistency and justification based on objective criteria

open access: yesEcology and Evolution, 2022
Group living is a critical component of the ecology of social animals such as delphinids. In many studies on these animals, groups represent sampling units that form the basis of the collection and analysis of data on their abundance, behavior, and ...
Jonathan Syme   +2 more
doaj   +1 more source

Updated revision of the marine mammals collection housed at the Museo Argentino de Ciencias Naturales "Bernardino Rivadavia" (Buenos Aires, Argentina) [PDF]

open access: yes, 2010
Se realizó una revisión de los ejemplares de la Colección de Mamíferos Marinos del Museo Argentino de Ciencias Naturales "Bernardino Rivadavia". La misma indicó que del total de ejemplares catalogados (n=378), el 56.9% corresponde a Cetacea mientras que ...
Bustos, Raimundo Lucas   +9 more
core  

Acoustically evoked potentials in two cephalopods inferred using the auditory brainstem response (ABR) approach [PDF]

open access: yes, 2009
It is still a matter of debate whether cephalopods can detect sound frequencies above 400 Hz. So far there is no proof for the detection of underwater sound above 400 Hz via a physiological approach.
Chung, W.-S.   +4 more
core   +1 more source

Tooth wear and dental calculus in a group of orca (Orcinus orca) stranded on the New Zealand southern coast

open access: yesJournal of the Royal Society of New Zealand, Volume 55, Issue 6, Page 2042-2059, December 2025.
ABSTRACT In 2014, a group of nine orca stranded in Te Waewae Bay, Western Southland, and their remains were collected, processed and studied in partnership with Ōraka Aparima Rūnaka. A total of 436 teeth were analysed to determine the location, type and intensity scores of tooth wear.
Carolina Loch   +8 more
wiley   +1 more source

Avian influenza overview September–November 2025

open access: yesEFSA Journal, Volume 23, Issue 12, December 2025.
Abstract Between 6 September and 28 November 2025, 2896 highly pathogenic avian influenza (HPAI) A(H5) virus detections were reported in domestic (442) and wild (2454) birds in 29 countries in Europe. The magnitude and geographical extent of these detections were unprecedented for this time of the year, particularly in wild birds.
European Food Safety Authority   +15 more
wiley   +1 more source

Historical Biogeography of Delphininae Dolphins and Related Taxa (Artiodactyla: Delphinidae) [PDF]

open access: yesJournal of Mammalian Evolution, 2016
Delphinine dolphins arose via a recent, rapid radiation, probably within the last four million years. Although molecular phylogenies are increasingly well resolved, patterns of morphology-ecology-geography are hard to link to phylogeny or to translate into taxonomy.
do Amaral, Karina Bohrer   +3 more
openaire   +2 more sources

Differences in the whistle characteristics and repertoire of Bottlenose and Spinner Dolphins

open access: yesAnais da Academia Brasileira de Ciências, 2004
Several methods have been used to compare the whistles produced by dolphins. The two methods used in this study are: (1) a classification of whistle contours in six categories (i.e.
Carmen Bazúa-Durán
doaj   +1 more source

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