Results 91 to 100 of about 25,770 (241)

Linking Comparative Genomics, Morphology and In Vitro Assays to Understand Deep Diving in Cetaceans

Molecular Ecology, EarlyView.
Matt J. Thorstensen
wiley   +1 more source

Observation Bias in Metabarcoding

Molecular Ecology Resources, Volume 25, Issue 7, October 2025.
ABSTRACT DNA metabarcoding is subject to observation bias associated with PCR and sequencing, which can result in observed read proportions differing from actual species proportions in the DNA extract. Here, we amplify and sequence a mock community of known composition containing marine fishes and cetaceans using four different primer sets and a ...
Megan R. Shaffer, Elizabeth Andruszkiewicz Allan, Amy M. Van Cise, Kim M. Parsons, Andrew Olaf Shelton, Ryan P. Kelly   +5 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

Genomic and structural investigation on dolphin morbillivirus (DMV) in Mediterranean fin whales (Balaenoptera physalus). [PDF]

, 2017
Dolphin morbillivirus (DMV) has been deemed as one of the most relevant threats for fin whales (Balaenoptera physalus) being responsible for a mortality outbreak in the Mediterranean Sea in the last years.
Beffagna, Giorgia, Centelleghe, Cinzia, Di Guardo, G, Franzo, Giovanni, Mazzariol, Sandro   +4 more
core   +1 more source

Investigating Harvest and Vessel Traffic Exposure as Drivers of Social Group Characteristics in Canadian Beluga ( Delphinapterus leucas ) Populations

Marine Mammal Science, Volume 41, Issue 4, October 2025.
ABSTRACT Assessing variation in social behaviors of group‐living animals may provide insight into the impacts of population stressors. Using very high resolution (VHR) satellite imagery acquired over 3 years, we compared social group size and composition, as well as spatial and social cohesion in three beluga ( Delphinapterus leucas ) populations that ...
Jordan B. Stewart, John Iacozza, Lisa Loseto, Cortney A. Watt   +3 more
wiley   +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

Characterizing Fraser's Dolphin ( Lagenodelphis hosei ) in the Lesser Antilles: Distribution, Movements, and Co‐Occurrence With Other Cetacean Species to Inform Conservation Strategies in the Caribbean

Marine Mammal Science, Volume 41, Issue 4, October 2025.
ABSTRACT Fraser's dolphin ( Lagenodelphis hosei ) is one of the least studied dolphin species due to its tropical, offshore distribution and low density. However, it is frequently observed in the Lesser Antilles, where we characterized its distribution and ecology using 4 years of data collected from Grenada to Anguilla.
Lucas Bernier, Rocío Prieto González, Christopher Hassall, Valentin Teillard, Jeffrey Bernus   +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

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

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