Results 61 to 70 of about 25,335 (235)

Nuevo registro de un cachalote (Physeter macrocephalus) varado y una revisión de varamientos en las costas de Argentina continental [PDF]

open access: yes, 2011
Presentamos un nuevo registro de un cachalote, con notas sobre la dieta, la determinación de edad y la presencia de parásitos, junto con una revisión de los varamientos a lo largo de toda la costa continental argentina.
Crespo, Enrique Alberto   +8 more
core  

Bartonella species detection in captive, stranded and free-ranging cetaceans [PDF]

open access: yes, 2008
We present prevalence of Bartonella spp. for multiple cohorts of wild and captive cetaceans. One hundred and six cetaceans including 86 bottlenose dolphins (71 free-ranging, 14 captive in a facility with a dolphin experiencing debility of unknown origin,
Breitschwerdt, Edward B.   +15 more
core   +4 more sources

Crowdsourcing modern and historical data identifies sperm whale (Physeter macrocephalus) habitat offshore of south-western Australia

open access: yesFrontiers in Marine Science, 2016
The distribution and use of pelagic habitat by sperm whales (Physeter macrocephalus) is poorly understood in the south-eastern Indian Ocean off Western Australia.
Christopher Michael Johnson   +7 more
doaj   +1 more source

Using Ancient DNA Analysis and Radiocarbon Dating to Determine the Provenance of an Unusual Whaling Artifact

open access: yesFrontiers in Ecology and Evolution, 2020
Natural history collections provide a critical temporal view of past biodiversity and are instrumental in the study of extinct populations. However, the value of historical specimens relies on correct species identification, collection date and ...
Caitlin Mudge   +3 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

open access: yesMarine Mammal Science, EarlyView.
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   +4 more
wiley   +1 more source

KILLER WHALE PREDATION ON SPERM WHALES: OBSERVATIONS AND IMPLICATIONS

open access: yesMarine Mammal Science, 2001
AbstractIn October 1997 we observed a herd of approximately 35 killer whales (Orcinus orca) attack a pod of nine sperm whales (Physeter macrocephalus) 130 km off the coast of central California. During the four hours we watched, adult female killer whales, including some with calves, attacked in waves of four to five animals in what was apparently a ...
Pitman, Robert L.   +3 more
openaire   +2 more sources

First At‐Sea Identifications of Ginkgo‐Toothed Beaked Whale (Mesoplodon ginkgodens): Acoustics, Genetics, and Biological Observations Off Baja California, México

open access: yesMarine Mammal Science, EarlyView.
ABSTRACT In 2024, an expedition was conducted off northwestern Baja California, México, to find and identify the beaked whale species that produced the BW43 echolocation pulse previously recorded in this area and elsewhere in the North Pacific. There were five Mesoplodon sightings and 21 BW43 acoustic detections on both a towed array and drifting pole ...
E. Elizabeth Henderson   +14 more
wiley   +1 more source

Cephalopods from the stomachs of sperm whales taken off California [PDF]

open access: yes, 1989
Cephalopod remains (beaks, bodies, and parts of bodies) were collected from the stomachs of 157 sperm whales (Physeter macrocephalus) taken off central California (lat. 37°-39°N).
Fiscus, Clifford H.   +2 more
core  

Depredating sperm whales in the Gulf of Alaska: local habitat use and long distance movements across putative population boundaries

open access: yesEndangered Species Research, 2014
Satellite tags were attached to 10 sperm whales Physeter macrocephalus (1 whale was tagged in 2 different years) to determine the movements of sperm whales involved in removal of sablefish from longline fishing gear in the Gulf of Alaska (GOA).
JM Straley   +7 more
doaj   +1 more source

Seasonal Abundance and Distribution of Cetaceans in a High Traffic Shipping Corridor

open access: yesMarine Mammal Science, EarlyView.
ABSTRACT The recovery of many cetacean species coincides spatially and temporally with intensifying anthropogenic threats. We undertook multi‐year systematic surveys to quantify seasonal abundance and document the distribution of at‐risk cetaceans, which is needed to assess the impacts of increasing human activities in the Canadian portions of the ...
Christie J. McMillan   +4 more
wiley   +1 more source

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