Results 11 to 20 of about 6,087 (203)

A survey of the sperm whale (Physeter catodon) commensal microbiome [PDF]

PeerJ, 2019
Background Mammalian commensal microbiota play important roles in the health of its host. In comparison to terrestrial mammals, commensal microbiota of marine mammals is mainly focused on the composition and function of skin and gut microbiota, with less
Chang Li, Xiaoxuan Tan, Jie Bai, Qiwu Xu, Shanshan Liu, Wenjie Guo, Cong Yu, Guangyi Fan, Yishan Lu, He Zhang, Huanming Yang, Jianwei Chen, Xin Liu   +12 more
doaj   +3 more sources

Diet and mitochondrial DNA haplotype of a sperm whale (Physeter macrocephalus) found dead off Jurong Island, Singapore [PDF]

PeerJ, 2019
Despite numerous studies across the large geographic range of the sperm whale (Physeter macrocephalus), little is known about the diet and mitochondrial DNA haplotypes of this strongly female philopatric species in waters off Southeast Asia.
Marcus A.H. Chua, David J.W. Lane, Seng Keat Ooi, Serene H.X. Tay, Tsunemi Kubodera   +4 more
doaj   +3 more sources

The Novel Evolution of the Sperm Whale Genome [PDF]

Genome Biology and Evolution, 2017
The sperm whale, made famous by Moby Dick, is one of the most fascinating of all ocean-dwelling species given their unique life history, novel physiological adaptations to hunting squid at extreme ocean depths, and their position as one of the earliest branching toothed whales (Odontoceti).
Wesley C Warren, Lukas Kuderna, Alana Alexander, Julian Catchen, José G Pérez-Silva, Carlos López-Otín, Víctor Quesada, Patrick Minx, Chad Tomlinson, Michael J Montague, Fabiana H G Farias, Ronald B Walter, Tomas Marques-Bonet, Travis Glenn, Troy J Kieran, Sandra S Wise, John Pierce Wise, Robert M Waterhouse, John Pierce Wise   +18 more
openaire   +7 more sources

Ocean nomads or island specialists? Culturally driven habitat partitioning contrasts in scale between geographically isolated sperm whale populations [PDF]

Royal Society Open Science, 2022
The sperm whale (Physeter macrocephalus) is a deep-diving cetacean with a global distribution and a multi-leveled, culturally segregated, social structure.
Felicia Vachon, Taylor A. Hersh, Luke Rendell, Shane Gero, Hal Whitehead   +4 more
doaj   +2 more sources

Characterization of Insulin and Glucagon Genes and Their Producing Endocrine Cells From Pygmy Sperm Whale (Kogia breviceps) [PDF]

Frontiers in Endocrinology, 2020
Insulin and glucagon are hormones secreted by pancreatic β and α cells, respectively, which together regulate glucose homeostasis. Dysregulation of insulin or glucagon can result in loss of blood glucose control, characterized by hyperglycemia or ...
Liyuan Zhao, Likun Wang, Likun Wang, Reyilamu Aierken, Wei Wang, Xianyan Wang, Mingyu Li   +6 more
doaj   +2 more sources

Anisakid parasite diversity in a pygmy sperm whale, Kogia breviceps (Cetacea: Kogiidae) stranded at the edge of its distribution range in the Northeast Atlantic Ocean [PDF]

Parasite
Anisakid nematodes are a globally distributed group of marine mammal parasites. Kogiid whales, including the pygmy sperm whale Kogia breviceps, host an assemblage of specific anisakid species.
Cipriani Paolo, Palomba Marialetizia, Giulietti Lucilla, Aco-Alburqueque Renato, Andolfi Roberta, ten Doeschate Mariel, Brownlow Andrew, Davison Nicholas J., Mattiucci Simonetta   +8 more
doaj   +2 more sources

Automatic detection and annotation of eastern Caribbean sperm whale codas [PDF]

Scientific Reports
A key technology for sperm whale (Physeter macrocephalus) monitoring is the identification of sperm whale communication signals, known as codas. In this paper we present the first automatic coda detector and annotator. The main innovation in our detector
Guy Gubnitsky, Yaly Mevorach, Shane Gero, David F. Gruber, Roee Diamant   +4 more
doaj   +2 more sources

Distinctive, fine‐scale distribution of Eastern Caribbean sperm whale vocal clans reflects island fidelity rather than environmental variables [PDF]

Ecology and Evolution, 2022
Environmental variables are often the primary drivers of species' distributions as they define their niche. However, individuals, or groups of individuals, may sometimes adopt a limited range within this larger suitable habitat as a result of social and ...
Felicia Vachon, Ana Eguiguren, Luke Rendell, Shane Gero, Hal Whitehead   +4 more
doaj   +2 more sources

Case Report: Ambergris coprolite and septicemia in a male sperm whale stranded in La Palma (Canary Islands) [PDF]

Frontiers in Veterinary Science
On the 21st of May 2023, a dead adult male sperm whale (Physeter macrocephalus) of 13 m in length and estimated weight of around 18,000 kg was reportedly stranded at Playa Los Nogales, La Palma, Canary Islands, Spain. A necropsy was performed 48hpm. A 50 
Antonio Fernández, Antonio Fernández, Cristian Suárez-Santana, Cristian Suárez-Santana, Paula Alonso-Almorox, Paula Alonso-Almorox, Francesco Achille Consoli, Francesco Achille Consoli, Zuleima Suárez González, Zuleima Suárez González, Ignacio Molpeceres-Diego, Ignacio Molpeceres-Diego, Claudia Iglesias González, Claudia Iglesias González, Marta Lorente Hernández, Amaranta Hugo Pérez, José Luis Martín-Barrasa, José Luis Martín-Barrasa, Laura Iglesias Llorente, Félix M. Medina, Raiden Grandía Guzmán, Raiden Grandía Guzmán, Diego Llinás Rueda, Diego Llinás Rueda, Manuel Arbelo, Manuel Arbelo, Eva Sierra, Eva Sierra   +27 more
doaj   +2 more sources

Testing Assumptions for Stable Isotope Analysis of Marine Mammal Dentin Growth Layer Groups. [PDF]

Rapid Commun Mass Spectrom
ABSTRACT Rationale Stable isotope analysis of growth layer groups (GLGs) in mammal dentin is an increasingly prevalent and noninvasive approach to study animal foraging ecology. However, empirical evidence to support assumed proper methodologies for sampling GLGs is lacking.
Bowen KR, Kurle CM.
europepmc   +2 more sources