Results 71 to 80 of about 6,484 (191)

orcAI: A Machine Learning Tool to Detect and Classify Acoustic Signals of Killer Whales in Audio Recordings

Marine Mammal Science, Volume 42, Issue 1, January 2026.
ABSTRACT Acoustic monitoring is an essential tool for investigating animal communication and behavior when visual contact is limited, but the scalability of bioacoustic projects is often limited by time‐intensive manual auditing of focal signals. To address this bottleneck, we introduce orcAI—a novel deep learning framework for the automated detection ...
Sebastian Bonhoeffer, Anna Selbmann, Daniel C. Angst, Nicolas Ochsner, Patrick J. O. Miller, Filipa I. P. Samarra, Chérine D. Baumgartner   +6 more
wiley   +1 more source

A machine-learning approach to assign species to ‘unidentified’ entangled whales

Endangered Species Research, 2018
Whale entanglements in US west coast fishing gear are largely represented by opportunistic sightings, and some reports lack species identifications due to rough seas, distance from whales, or a lack of cetacean identification expertise.
Carretta, JV
doaj   +1 more source

Melon‐Headed Whale (Peponocephala electra) Occurrence in the Equatorial Mid‐Atlantic Ocean With Descriptions of Their Whistles

Marine Mammal Science, Volume 42, Issue 1, January 2026.
ABSTRACT Acoustic studies for any cetacean species in tropical Atlantic Ocean waters are scarce, especially for oceanic dolphins, such as the melon‐headed whale, Peponocephala electra. Here we describe a unique visual and acoustic record for this species, filling an information gap about the acoustic patterns of these delphinids in this part of the ...
Diana C. Freitas, Manuela Bassoi, Isis V. B. Da Silva, Luane S. Ferreira, Izabela C. Laurentino, Juliana R. Moron, Renata S. Sousa‐Lima   +6 more
wiley   +1 more source

High Arctic “hotspots” for sperm whales (Physeter macrocephalus) off western and northern Svalbard, Norway, revealed by multi-year Passive Acoustic Monitoring (PAM)

Scientific Reports
Despite the well-documented, broad global distribution of sperm whales (Physeter macrocephalus), their distributional patterns remain poorly known in Arctic regions, where year-round monitoring is challenging. Adult male sperm whales are known to migrate
Viivi Pöyhönen, Karolin Thomisch, Kit M. Kovacs, Christian Lydersen, Heidi Ahonen   +4 more
doaj   +1 more source

Vertebral bone microarchitecture and osteocyte characteristics of three toothed whale species with varying diving behaviour

Scientific Reports, 2017
Although vertebral bone microarchitecture has been studied in various tetrapods, limited quantitative data are available on the structural and compositional changes of vertebrae in marine mammals. Whales exhibit exceptional swimming and diving behaviour,
Tim Rolvien, Michael Hahn, Ursula Siebert, Klaus Püschel, Hans-Joachim Wilke, Björn Busse, Michael Amling, Ralf Oheim   +7 more
doaj   +1 more source

Supplementary material from "Adaptation of sperm whales to open-boat whalers: rapid social learning on a large scale?"

, 2021
Luke Rendell, Smith, Tim D., Rendell, Luke   +2 more
openalex   +1 more source

Click-click, who’s there? Acoustically derived estimates of sperm whale size distribution off western Ireland

Frontiers in Marine Science
Understanding the structure of populations is a critical element to the establishment of management and conservation measures. Sperm whales Physeter macrocephalus are characterised by a demographic spatial segregation, associated with a conspicuous ...
Cynthia Barile, Simon Berrow, Simon Berrow, Joanne O’Brien   +3 more
doaj   +1 more source

No evidence for recovery in the population of sperm whale bulls off Western Australia, 30 years post-whaling

Endangered Species Research, 2014
The global sperm whale Physeter macrocephalus population has been protected from large-scale commercial whaling for >25 yr, yet there is no clear evidence of recovery in any heavily exploited stock.
G Carroll, S Hedley, J Bannister, P Ensor, R Harcourt   +4 more
doaj   +1 more source

Distribution and relative abundance of large whales in a former whaling ground off eastern South America

Zoologia (Curitiba), 2010
Ship-based sighting surveys for cetaceans were conducted in the former whaling ground off the northeastern coast of Brazil. The cruises took place in winter and spring of 1998-2001 with the objectives of investigating current distribution and abundance ...
Artur Andriolo, Jesuina M. da Rocha, Alexandre N. Zerbini, Paulo C. Simões-Lopes, Ignacio B. Moreno, Alineide Lucena, Daniel Danilewicz, Manuela Bassoi   +7 more
doaj   +1 more source

Identification of the co-localisation of Hg with Se and Fe by NanoSIMS in sperm whale liver.   

, 2022
Lhiam Paton, Maria Angels Subirana, Dirk Schaumlöffel, Jörg Feldmann   +3 more
openalex   +1 more source