Results 31 to 40 of about 682 (168)
Animal Biotelemetry, 2023 Background Due to their Arctic habitat and elusive nature, little is known about the narwhal (Monodon monoceros) and its foraging behaviour. Understanding its ability to catch prey is essential for understanding its ecological role, but also to assess ...
Frederik H. Jensen +3 more
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On the availability bias in narwhal abundance estimates
NAMMCO Scientific Publications, 2022 Abundance estimation of narwhals is usually done with either visual or photographic aerial surveys. The basic estimation for both methods is detection of whales at the surface, and to obtain fully corrected abundance estimates, the at-surface detections
Mads Peter Heide-Jørgensen, Jochim Lage
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Ecological InformaticsRemote sensing technologies have expanded methods for monitoring wildlife. Very High Resolution (VHR) satellite imagery is becoming more widely used for animal detection.
Bryanna A.H. Sherbo +2 more
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PLoS ONE, 2016 Recordings of narwhal (Monodon monoceros) echolocation signals were made using a linear 16 hydrophone array in the pack ice of Baffin Bay, West Greenland in 2013 at eleven sites.
Jens C Koblitz +3 more
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Mapping Arctic cetaceans from space: A case study for beluga and narwhal
PLoS ONE, 2021 Emergence of new technologies in remote sensing give scientists a new way to detect and monitor wildlife populations. In this study we assess the ability to detect and classify two emblematic Arctic cetaceans, the narwhal (Monodon monoceros) and beluga ...
Bertrand Charry +4 more
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Vocal sequences in narwhals (Monodon monoceros) [PDF]
The Journal of the Acoustical Society of America, 2020 Sequences are indicative of signal complexity in vocal communication. While vocal sequences are well-described in birds and terrestrial mammals, the extent to which marine mammals use them is less well understood. This study documents the first known examples of sequence use in the narwhal (Monodon monoceros), a gregarious Arctic cetacean. Eight female
Walmsley, Sam +3 more
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NAMMCO Scientific Publications, 2002 This paper is based on 748 observations of belugas (Delphinapterus leucas) and 382 observations of baleen whales in the Russian Arctic, the majority of the data provided by aerial reconnaissance of sea ice (ARSI).
Stanislav E Belikov, Andrei N Boltunov
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Sustainable Development, EarlyView.ABSTRACT The Blue Economy has emerged as a key framework for promoting sustainable development in marine and coastal systems. This study provides a longitudinal bibliometric review of peer‐reviewed Blue Economy research published between 2011 and 2025.
Álvaro J. Rojas‐Lamorena +3 more
wiley +1 more source
A Narwhal in the Thames Estuary [PDF]
Nature, 1949 THE recent stranding of a narwhal (Monodon monoceros) at Rainham, Essex, is a record of considerable interest. This species is usually limited to Arctic waters, although it occasionally penetrates into the North Sea. The infrequency of its occurrence off the British coast may be gauged by the fact that since 1588, when one was found on the coast of ...
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NAMMCO Scientific PublicationsThe regulation of seal and whale hunting in Kalaallit Nunaat (Greenland) belongs to the Naalakkersuisut (National Government), which is notably informed by the work of the Scientific Committee (SC) of the North Atlantic Marine Mammal Commission (NAMMCO).
Tanguy Sandré +4 more
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