Results 71 to 80 of about 6,087 (203)

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

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

Reconstructing life‐time reproductive histories using steroid hormones in cephalopod beaks

Limnology and Oceanography Letters, Volume 10, Issue 2, Page 212-222, April 2025.
Abstract Reproductive data are vital for fisheries and conservation management. For cephalopods, reproductive data are usually obtained by analyzing gonads, which only provide data on an individual at a given time and require whole deceased specimens.
Erica D. Durante, Michael D. Wiese, Ashley S. Meakin, Karina C. Hall, Zoë A. Doubleday   +4 more
wiley   +1 more source

Generating Spatialised and Seasonal Deep‐Time Palaeoclimatic Information: Integration Into an Environmental‐Dependent Diversification Model

Global Ecology and Biogeography, Volume 34, Issue 4, April 2025.
ABSTRACT Aim Testing the impact of climate on diversification is a major goal of evolutionary biology. Birth‐death models like palaeoenvironment‐dependent diversification (PDD) models, for example, allow exploring the potential correlations between diversification dynamics and past environmental changes, such as temperature, among other abiotic ...
Delphine Tardif, Fabien L. Condamine, Serafin J. R. Streiff, Pierre Sepulchre, Thomas L. P. Couvreur   +4 more
wiley   +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

Anisakis spp. as indicators of latitudinal movements of short‐finned pilot whales, Globicephala macrorhynchus, in the Northeast Atlantic

Marine Mammal Science, Volume 41, Issue 2, April 2025.
Abstract In the Northeast Atlantic, it is unclear whether short‐finned pilot whales, Globicephala macrorhynchus (SFPWs), are transient or resident above 40°N. We used Anisakis spp. to identify the latitudes recently visited by a SFPW pod stranded in NW Spain (43°N) in 2020.
Claudia Pons‐Bordas, Rachel V. Pool, Sofía Ten, José A. Armenteros‐Santos, Ana Balseiro, Manena Fayos, F. Javier Aznar   +6 more
wiley   +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

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

Marine mammals of Easter Island (Rapa Nui) and Salas y Gómez Island (Motu Motiro Hiva), Chile: a review and new records

Latin American Journal of Aquatic Research, 2014
The Chilean oceanic islands Easter Island (Rapa Nui) and Salas y Gómez Island (Motu Motiro Hiva) have received little attention with regards to basic marine mammal investigations.
Rodrigo Hucke-Gaete, Anelio Aguayo-Lobo, Sebastián Yancovic-Pakarati, Marcelo Flores   +3 more
doaj   +1 more source

Utilization of stable isotopes in teeth to investigate pygmy sperm whales (Kogia breviceps) in the southeastern United States

Marine Mammal Science, Volume 41, Issue 2, April 2025.
Abstract The pygmy sperm whale (Kogia breviceps) is currently the second‐most stranded cetacean in the southeastern United States (SEUS), but information concerning their population structure is severely limited. This study used stable isotope analysis to investigate the isotopic niches and population structure of K.
Nicole R. Hackel, Wayne E. McFee
wiley   +1 more source