Buscar
Mostrando ítems 1-10 de 1079
Potential impact of dolphin watching unregulated activities in Patagonia
(International Whaling Commission, 2003-12)
Since 1997, dolphin watching activities have increased in Patagonia, with dusky and Commerson´s dolphins as the target species. To assess the impact of this activity, dolphin watching tours were monitored. For dusky dolphins, ...
Environmental factors governing the distribution of the bottlenose (Tursiops truncatus) and the spotted dolphin (Stenella attenuata) in Golfo Dulce, South Pacific, off Costa Rica
(Escuela de Ciencias del Mar <BR>Pontificia Universidad Católica de Valparaíso, 2007)
Behavioral responses of Sotalia guianensis (Cetartiodactyla, Delphinidae) to boat approaches in northeast Brazil
(Univ Catolica De Valparaiso, 2018-05-01)
Boat engines increase the noise levels of the oceans, alter the acoustic environment of cetaceans and diminish their efficiency to echolocate. This study aims to determine if Guiana dolphins (Sotalia guianensis) are ...
Seabird and dolphin associations: do seabirds benefit from feeding in association with dusky dolphins in Patagonia?
(Cambridge University Press, 2013-08-07)
The objective of this study was to describe associations between several species of seabirds and dusky dolphins. We investigated during what dolphin activities seabirds were most commonly associated, and the size of flock ...
Abundance of small cetaceans in waters of the central Spanish Mediterranean
(Springer, 2006-05)
Seasonal aerial surveys were conducted in the waters of the central Spanish Mediterranean from 2001 to 2003 using line transect sampling methodology to estimate cetacean abundance. The density of the three most abundant ...
Resolving Chilean dolphin (Cephalorhynchus eutropia, Gray 1846) synonymy by sequencing DNA extracted from teeth of museum specimens
(Universidad de Valparaíso. Facultad de Ciencias del Mar, 2001)
Feeding aggregation and aggressive interaction between bottlenose (Tursiops truncatus) and Commerson’s dolphins (Cephalorhynchus commersonii) in Patagonia, Argentina
(Springer Tokyo, 2009-07)
We report the first recorded interactions between bottlenose dolphin (Tursiops truncatus) and Commerson’s dolphins (Cephalorhynchus commersonii). The diurnal behavioral patterns of bottlenose dolphins in Bahía Engaño, ...
Solving manufacturing cell design problems by using a dolphin echolocation algorithm
(Springer Verlag, 2016)
Can habitat characteristics shape vertebral morphology in dolphins? An example of two phylogenetically related species from southern South America
(Wiley Blackwell Publishing, Inc, 2017-07)
Fast swimming pelagic cetacean species have osteological characteristics that promote a more stable spine in comparison to that of coastal species. The Peale?s dolphin (Lagenorhynchus australis) and the hourglass dolphin ...
Using stable isotopes to assess whether two sympatric dolphin species share trophic resources
(Wiley Blackwell Publishing, Inc, 2017-10-07)
In the southwestern South Atlantic Ocean, the dusky dolphin, Lagenorhynchus obscurus, and the short-beaked common dolphin, Delphinus delphis, overlap in their distribution along the Patagonian shelf and beyond the shelf-break ...