Results 81 to 90 of about 2,157 (191)

First direct measurements of behavioural responses by Cuvier's beaked whales to mid-frequency active sonar [PDF]

open access: yes, 2013
Most marine mammal­ strandings coincident with naval sonar exercises have involved Cuvier's beaked whales (Ziphius cavirostris). We recorded animal movement and acoustic data on two tagged Ziphius and obtained the first direct measurements of behavioural
Anonymous   +16 more
core   +1 more source

Metagenomic Insights Into the Role of Gut Microbes in the Defensive Ink “Tsunabi” of Physeteroid Whales

open access: yesEcology and Evolution, Volume 15, Issue 8, August 2025.
Whales of the superfamily Physeteroidea exhibit a unique visual defense mechanism involving the release of dark reddish‐brown feces (locally called “tsunabi‐ink” in Japan) into the water. This study proposes that tsunabi‐ink is a metabolic byproduct of shifts in the gut microbial community, influenced by the host's digestive physiology and foraging ...
Hayate Takeuchi   +2 more
wiley   +1 more source

Prioritizing future evidence needs for marine and freshwater mammal conservation action

open access: yesAnimal Conservation, Volume 28, Issue 4, Page 542-552, August 2025.
To improve conservation practice, decisions should be informed by the available evidence on the effectiveness of conservation actions. Here, we review the comprehensiveness of this evidence base for marine and freshwater mammals. We assess the taxonomic and geographic coverage of the evidence base, identify biases and suggest priorities for future ...
E. Hordern   +5 more
wiley   +1 more source

Updated revision of the marine mammals collection housed at the Museo Argentino de Ciencias Naturales "Bernardino Rivadavia" (Buenos Aires, Argentina) [PDF]

open access: yes, 2010
Se realizó una revisión de los ejemplares de la Colección de Mamíferos Marinos del Museo Argentino de Ciencias Naturales "Bernardino Rivadavia". La misma indicó que del total de ejemplares catalogados (n=378), el 56.9% corresponde a Cetacea mientras que ...
Bustos, Raimundo Lucas   +9 more
core  

Genomic infrastructure for cetacean research and conservation: reference genomes for eight families spanning the cetacean tree of life

open access: yesFrontiers in Marine Science
Reference genomes from representative species across families provide the critical infrastructure for research and conservation. The Cetacean Genomes Project (CGP) began in early 2020 to facilitate the generation of near error-free, chromosome-resolved ...
Phillip A. Morin   +57 more
doaj   +1 more source

Distributive and Phagocytic Characteristics of Hepatic Macrophages in Five Cetaceans belonging to Delphinidae and Ziphiidae

open access: yesJournal of Veterinary Medical Science, 2004
Details of morphology and distribution of hepatic macrophages in cetaceans were investigated using the immunohistochemistry with an antibody (SRA-E5) generated against human macrophage scavenger receptor antigen. Liver samples were obtained from five species of cetaceans (Baird's beaked whales, short-finned pilot whales, Risso's dolphins, bottlenose ...
Maki, Kawashima   +4 more
openaire   +2 more sources

Indian Efforts on the Inventorization of Marine Mammal Species for their Conservation and Management [PDF]

open access: yes, 2009
The present study is the first attempt to use molecular tools for identification of marine mammals in India. The objective was to develop a database of genetic sequences for future marine mammal research in addition to confirming the species identity ...
Afsal, V V   +7 more
core  

Body density and diving gas volume of the northern bottlenose whale (Hyperoodon ampullatus) [PDF]

open access: yes, 2016
Funding for fieldwork and data analysis was provided by the Strategic Environmental Research and Development Program (SERDP), project RC-2337Diving lung volume and tissue density, reflecting lipid store volume, are important physiological parameters that
Isojunno, Saana   +5 more
core   +1 more source

Estimates of Marine Mammal, Sea Turtle, and Seabird Mortality in the California Drift Gillnet Fishery for Swordfish and Thresher Shark, 1996–2002 [PDF]

open access: yes, 2004
Estimates of incidental marine mammal, sea turtle, and seabird mortality in the California drift gillnet fishery for broadbill swordfish, Xiphias gladius, and common thresher shark, Alopias vulpinus, are summarized for the 7-year period, 1996 to 2002 ...
Caretta, James V.   +3 more
core  

A higher-level MRP supertree of placental mammals [PDF]

open access: yes, 2006
Background The higher-level phylogeny of placental mammals has long been a phylogenetic Gordian knot, with disagreement about both the precise contents of, and relationships between, the extant orders.
Robin MD Beck   +4 more
core   +2 more sources

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