Results 61 to 70 of about 187,735 (401)

Groundtruthing of pelagic forage fish detected by hydroacoustics in a whale feeding area using environmental DNA

Environmental DNA, 2020
Conservation of whales, considered as umbrella species in marine environments, requires to be able to understand their relationships with ecosystem components such as prey species, including pelagic fish. However, studying such relationships in nature is
Chloé Suzanne Berger, Bérénice Bougas, Samuel Turgeon, Sophia Ferchiou, Nadia Ménard, Louis Bernatchez   +5 more
doaj   +1 more source

Killer Whale (Orcinus orca) Predation on Beaked Whales (Mesoplodon spp.) in the Bremer Sub-Basin, Western Australia. [PDF]

PLoS ONE, 2016
Observations of killer whales (Orcinus orca) feeding on the remains of beaked whales have been previously documented; however, to date, there has been no published account of killer whales actively preying upon beaked whales.
Rebecca Wellard, Keith Lightbody, Leila Fouda, Michelle Blewitt, David Riggs, Christine Erbe   +5 more
doaj   +1 more source

High mortality of blue, humpback and fin whales from modeling of vessel collisions on the U.S. West Coast suggests population impacts and insufficient protection

PLoS ONE, 2017
Mortality from collisions with vessels is one of the main human causes of death for large whales. Ship strikes are rarely witnessed and the distribution of strike risk and estimates of mortality remain uncertain at best.
R. C. Rockwood, J. Calambokidis, J. Jahncke   +2 more
semanticscholar   +1 more source

Predicting ecology and hearing sensitivities in Parapontoporia—An extinct long‐snouted dolphin

The Anatomical Record, EarlyView.
Abstract Analyses of the cetacean (whale and dolphin) inner ear provide glimpses into the ecology and evolution of extinct and extant groups. The paleoecology of the long‐snouted odontocete (toothed whale) group, Parapontoporia, is primarily marine with its depositional context also suggesting freshwater tolerance.
Joyce Sanks, Rachel Racicot
wiley   +1 more source

Thermal Footprints of Whales [PDF]

Oceanography, 2009
Under the right meteorological conditions, whales can leave a trail of cool spots on the ocean surface that are detectable in infrared images. When the wind is light and the sun is shining, the surface water warms to produce a thermal gradient in the top
James Churnside, Lev Ostrovsky, Tim Veenstra   +2 more
doaj  

North Atlantic blue and fin whales suspend their spring migration to forage in middle latitudes: building up energy reserves for the journey? [PDF]

PLoS ONE, 2013
The need to balance energy reserves during migration is a critical factor for most long-distance migrants and an important determinant of migratory strategies in birds, insects and land mammals.
Mónica A Silva, Rui Prieto, Ian Jonsen, Mark F Baumgartner, Ricardo S Santos   +4 more
doaj   +1 more source

Bioimaging of sense organs and the central nervous system in extant fishes and reptiles in situ: A review

The Anatomical Record, EarlyView.
Bioimaging of the sense organs and brain of fishes and reptiles. Left panel: 3D reconstruction of the head and brain of the deep‐sea viperfish Chauliodus sloani following diceCT. Right panel: A 3D reconstruction of a 70‐day‐old embryo head of the bearded dragon Pogona vitticeps following diceCT, showing the position of the segmented brain within the ...
Shaun P. Collin, Kara E. Yopak, Jenna M. Crowe‐Riddell, Victoria Camilieri‐Asch, Caroline C. Kerr, Hope Robins, Myoung Hoon Ha, Annalise Ceddia, Travis L. Dutka, Lucille Chapuis   +9 more
wiley   +1 more source

Assessing social behaviour between baleen whales (Mysticeti) and dolphins (Delphinidae)

Discover Animals
The dynamics and factors influencing interspecies interactions in the wild are not well understood, particularly among social marine animal species such as Mysticetes and Delphinadae.
Jan-Olaf Meynecke, Olivia Crawley
doaj   +1 more source

Abundance of whales in West and East Greenland in summer 2015

NAMMCO Scientific Publications, 2019
An aerial line transect survey of whales in West and East Greenland was conducted in August-September 2015. The survey covered the area between the coast of West Greenland and offshore (up to 100 km) to the shelf break.
Rikke Guldborg Hansen, Tenna K. Boye, Rasmus S. Larsen, Nynne H. Nielsen, Outi Tervo, Rasmus D. Nielsen, Marianne H. Rasmussen, Mikkel H. S. Sinding, Mads Peter Heide-Jørgensen   +8 more
doaj   +1 more source

A. A. Berzin and His Memoir [PDF]

, 2008
Alfred A. Berzin began to study whales in 1955 at the Pacific Research and Fisheries Center (TINRO) in Vladivostok where he is still working at the present time.
Yablokov, A. V.
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