Results 51 to 60 of about 9,548 (180)
Acoustic differentiation and classification of wild belugas and narwhals using echolocation clicks
Scientific Reports, 2021 Belugas (Delphinapterus leucas) and narwhals (Monodon monoceros) are highly social Arctic toothed whales with large vocal repertoires and similar acoustic profiles.
Marie J. Zahn +6 more
doaj +1 more source
Cetacean spatial trends from 2005 to 2019 in Svalbard, Norway
Polar Research, 2022 This study uses cetacean sighting data, acquired via a citizen science programme, to update distributions and spatial trends of whales and dolphins in waters around the Svalbard Archipelago during the period 2005–2019.
Olof Bengtsson +2 more
doaj +1 more source
Aquatic Conservation: Marine and Freshwater Ecosystems, Volume 36, Issue 2, February 2026.ABSTRACT Cetaceans are indicators of ocean health, influence marine ecosystem dynamics and hold socio‐economic importance for coastal whaling communities. Yet whale–whaler relationships remain poorly understood and are increasingly compromised under the triple planetary crisis of climate change, biodiversity loss and pollution. Here, we briefly outline
Melissa A. McKinney, Jeremy J. Kiszka
wiley +1 more source
Data on the angular characteristics of the spiral structure of the narwhal tusk
Data in Brief, 2018 We studied morphometric features of the spiral structure of the narwhal tusk and show that angular parameters of the arcs of the cementum layer determine the pattern of the spiral structure of the tusk.
Andrey Bondoevich Kiladze +1 more
doaj +1 more source
The Anatomical Record, Volume 309, Issue 2, Page 397-416, February 2026.Abstract Mysticetes, or baleen whales, have an air sac on the ventral surface of the larynx known as the “laryngeal sac.” The primary hypothesis regarding this structure's function is that it is involved in sound production. However, several other functions have been proposed, including air recycling, air storage, and even buoyancy control.
Gen Nakamura +7 more
wiley +1 more source
Identification of penaeid shrimp from Chilika Lake through DNA barcoding
Mitochondrial DNA. Part B. Resources, 2018 Chilika Lake is one of the prolific habitats of shrimps in India and offers tons of commercial trading every year. The genetic diversity of penaeid shrimp species in this oldest and largest brackish water lagoon is unknown so far.
Shantanu Kundu +4 more
doaj +1 more source
Predators and scavengers: Polar bears as marine carrion providers
Oikos, Volume 2026, Issue 1, January 2026.Scavenging is a foraging strategy widely used across the animal kingdom and apex predators provide a large amount of energy in a food web by provisioning carrion. In the harsh environmental conditions of the Arctic, apex predators such as polar bears Ursus maritimus can provide scavenging opportunities for many species. Carrion can act as a buffer when
Holly E. L. Gamblin +5 more
wiley +1 more source
Marine Mammal Science, Volume 42, Issue 1, January 2026.ABSTRACT Monitoring live and stranded cetaceans can be expensive and logistically challenging, resulting in knowledge gaps. Very high‐resolution (VHR) optical satellites are considered a potential solution to addressing some of these gaps. Despite success at detecting live and stranded cetaceans, satellites have only been trialed on restricted ...
Penny J. Clarke +8 more
wiley +1 more source
Impact of Tusk Anomalies on the Long‐Term Foraging Ecology of Narwhals
Ecology and Evolution, Volume 15, Issue 11, November 2025.We combined stable δ13C and δ15N isotope analysis and genetic sexing to investigate whether narwhals with dental anomalies have a distinct long‐term foraging ecology. Our results showed no difference in stable isotope signature of two‐tusked male and one‐tusked female narwhals relative to normal‐tusked narwhals, indicating that an extra tusk does not ...
Marie Louis +11 more
wiley +1 more source
NAMMCO Scientific Publications, 2002 Three ice entrapments of Monodontids have been reported in the western North Atlantic since 1993. Hunters in Disko Bay, West Greenland, discovered one in March 1994 that included about 150 narwhals (Monodon monoceros).
MP Heide-Jørgensen +3 more
doaj +1 more source