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Lagenorhynchus obscurus, Dusky Dolphin
(International Union for Conservation of Nature, 2019-03)
The Dusky Dolphin was classified as Data Deficient (DD) on the IUCN Red List in 2008. The species remains extremely data-poor and DD was still considered potentially applicable in this assessment. Clarifying language in ...
Dusky Dolphin Trophic Ecology: Their Role in the Food Web
(Elsevier, 2010)
Like most top predators, dusky dolphins (Lagenorhynchus obscurus) may play different roles in marine ecosystems, although they are still poorly known. Dusky dolphins are an integral part of several marine ecosystems of the ...
Sequential foraging of dusky dolphins with an inspection of their prey distribution
(Wiley Blackwell Publishing, Inc, 2013-10-01)
The aim of this work was to analyze the sequential foraging behavior of dusky dolphins (Lagenorhynchus obscurus). Foraging sequences were defined when more than two feeding bouts occur with a traveling bout between them. ...
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, ...
Human interactions with dusky dolphins: Harvest, fisheries, habitat alteration, and tourism
(Elsevier, 2010)
Dusky dolphins have been hunted off Peru for over three decades, where they are used as fish bait and food for human consumption. During the late 1980s and early 1990s, thousands of dusky dolphins were killed each year in ...
Spatial genetic structure of dusky dolphin, Lagenorhynchus obscurus, along the argentine coast: preserve what scale?
(Wiley, 2015-01)
The dusky dolphin (Lagenorhynchus obscurus) represents one of the most abundant species of small cetacean in Argentine waters. During the 1980s and 1990s, high levels of incidental mortality in purse and trawl fisheries ...
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 ...
Dusky dolphin group dynamics and association patterns in Península Valdés, Argentina
(Wiley Blackwell Publishing, Inc, 2019-04)
We inspected dusky dolphin (Lagenorhynchus obscurus) group dynamics in Golfo Nuevo and found differences in social organization between cold and warm seasons. Surveys were conducted onboard a research vessel, from which ...
Diving for food: A switch of foraging strategy of dusky dolphins in Argentina
(Springer Tokyo, 2012-09)
During winter, dusky dolphins (Lagenorhynchus obscurus) were observed in coordinated diving apparently in a feeding activity, contrasting with the surface feeding observed during summer. The aim of this work consisted in ...
Behavioural responses of argentine coastal dusky dolphins, Lagenorhynchus obscurus, to a biopsy pole system
(Universities Federation of Animal Welfare, 2013-01)
In recent years, analysis of tissue samples has become a powerful tool in cetacean ecology since it provides information for effective conservation and management policies. Biopsy samples taken for such studies have been ...