Results 21 to 30 of about 124,439 (171)

Population dynamics and distribution of northern Norwegian killer whales in relation to wintering herring [PDF]

open access: yes, 2014
The northern Norwegian killer whale (Orcinus orca) is an important predator but little is known about its population dynamics, particular in response to changes in its main prey, the highly dynamic Norwegian spring spawning (NSS) herring (Clupea harengus)
Kuningas, Sanna
core   +2 more sources

Applying flukeprint environmental DNA to detect skin-associated bacteria from free-ranging West Coast Transient killer whales Orcinus orca rectipinnus [PDF]

open access: yesMetabarcoding and Metagenomics
Globally, vessel strikes, entanglements, and ocean pollution negatively impact cetaceans by compromising skin integrity and health through direct injury or disease and by increasing susceptibility to chronic bacterial, viral, or fungal infections ...
Chloe Victoria Robinson   +5 more
doaj   +3 more sources

Classification of large acoustic datasets using machine learning and crowdsourcing : application to whale calls [PDF]

open access: yes, 2014
A.M.v.B.B. acknowledges support from the Sea Mammal Research Unit at the University of St. Andrews (Professor Ian Boyd) and Woods Hole Oceanographic Institution for the Whale FM project. P.T.
Filipa Samarra   +17 more
core   +1 more source

Functional design and use of acoustic signals produced by killer whales (Orcinus orca) [PDF]

open access: yes, 2012
This study aimed to investigate possible functions of the sounds produced by herring-eating killer whales in the Northeast Atlantic. In this study, I investigated the whistle repertoire of killer whales, which had previously only been studied in ...
Samarra, Filipa Isabel Pereira
core   +2 more sources

Cetacean studies using platforms of opportunity [PDF]

open access: yes, 2012
Chapters 1-5 of this thesis have been updated and subsequently published in multi-authored articles in peer-reviewed journals. If required, citations should be made to these updated articles listed in the full item record belowAs human impact on marine ...
Williams, Rob
core   +2 more sources

仿生虎鲸瞬时负载数值模拟

open access: yesJixie qiangdu, 2021
As a kind of bionic robot fish,bionic killer whale played an important role in ocean development and scientific investigation.Based on the theory of flapping wing movement,the biomimetic killer whale was designed in the way of fish propulsion,the load ...
李明昊   +4 more
doaj  

Killer whale (Orcinus orca) photo-identification in the eastern Canadian Arctic [PDF]

open access: yesPolar Research, 2011
We identified individual killer whales (Orcinus orca) using recent (2004–09) photographs to obtain a minimum count of whales that use eastern Canadian Arctic waters.
Brent G. Young   +2 more
doaj   +1 more source

Killer whale predation on an Antarctic minke whale in the northern Antarctic Peninsula [PDF]

open access: yesAnais da Academia Brasileira de Ciências
We describe the seldom observed event of a group of type A killer whale (Orcinus orca) predating on an Antarctic minke whale (Balaenoptera bonaerensis) in austral summer 2019.
ELISA SEYBOTH   +3 more
doaj   +1 more source

Circulating inhibin and testosterone during sexual maturation and reproductive seasonality of captive male killer whales (Orcinus orca)

open access: yesVeterinary Integrative Sciences, 2020
The present study aimed to investigate the reproductive biology of male killer whales. Changes in the concentrations of two circulating testicular hormones, inhibin and testosterone, were monitored during sexual maturation of two male Type 1 ...
Katsumata Katsumata   +6 more
doaj   +1 more source

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