Results 61 to 70 of about 125,317 (355)
Beluga, Delphinapterus leucas, Group Sizes in Cook Inlet, Alaska, Based on Observer Counts and Aerial Video [PDF]
, 2000 Belugas, Delphinapterus leucas, groups were videotaped concurrent to observer counts during annual NMFS aerial surveys of Cook Inlet, Alaska, from 1994 to 2000. The videotapes provided permanent records of whale groups that could be examined and compared
Hobbs, Roderick C. +2 more
core
A Bayesian method to estimate the depth and the range of phonating sperm whales using a single hydrophone [PDF]
, 2007 Some bioacousticians have used a single hydrophone to calculate the depth/range of phonating diving animals. The standard one-hydrophone localization method uses multipath transmissions (direct path, sea surface, and seafloor reflections) of the animal ...
Backus R. +3 more
core +4 more sources
Helmeted hornbill cranial kinesis: Balancing mobility and stability in a high‐impact joint
The Anatomical Record, EarlyView.Abstract Prokinesis—in which a craniofacial joint allows the rostrum to move relative to the braincase—is thought to confer diverse advantages in birds, mostly for feeding. A craniofacial joint would, however, be a weak link if cranial stability is important. Paradoxically, we have identified a craniofacial joint in helmeted hornbills (Rhinoplax vigil),
Mike Schindler +8 more
wiley +1 more source
Whales and Whaling: a Dance of Death [PDF]
Oryx, 1975 The whaling industry and its raw material, the whale stocks of the world, continue their grim Totentanz towards their mutual extinction. The most significant event of the 27th meeting of the International Whaling Commission in London in June, and one of the least publicised, was the Soviet announcement that next season they would have only two instead ...
openaire +2 more sources
The Anatomical Record, EarlyView.Abstract The pygmy sperm whale (Kogia breviceps) possesses an exocrine gland associated with its false gill slit pigmentation pattern. The cervical gill slit gland is a compound tubuloalveolar gland that produces a holocrine secretion and displays maturational changes in size and secretory histology. While the morphology of the cervical gill slit gland
Tiffany F. Keenan +13 more
wiley +1 more source
Performance PhilosophyIn this piece, Laura Cull Ó Maoilearca offers two stories that approach the experience of grief and loss from an interspecies perspective with a particular focus on whales.
Laura Cull Ó Maoilearca
doaj +1 more source
NAMMCO Scientific Publications, 2009 The abundances of large whale species are presented for the northeast Atlantic from near-complete survey coverage in 1995 and from multiple partial-area surveys during 1996-2001.
Nils Øien
doaj +1 more source
Subarctic Cetaceans in the Southern Chukchi Sea: Evidence of Recovery or Response to a Changing Ecosystem [PDF]
Oceanography, 2013 The southern Chukchi Sea is one of the most productive areas in the world ocean. Over the past decade, there have been dramatic changes in this region in sea ice cover and in Bering Strait inflow, and it is now in the path of transpolar shipping and ...
Janet Clarke +5 more
doaj +1 more source
Deployment of biologging tags on free swimming large whales using uncrewed aerial systems
Royal Society Open Science, 2023 Suction-cup-attached biologging tags have led to major advances in our understanding of large whale behaviour. Getting close enough to a whale at sea to safely attach a tag is a major limiting factor when deploying these systems.
David N. Wiley +8 more
doaj +1 more source
Annals of the Rheumatic Diseases, 2005 Spondyloarthropathy is the term applied to a form of arthritis with sentinel alteration of the spine, in the form of syndesmophytes and zygapophyseal joint erosions.1–3 Although a single zygapophyseal joint can be damaged by pyogenic or rarely by a granulomatous infection, the only known cause of multiple zygapophyseal joint erosions is ...
Virginia L. Naples, Bruce M. Rothschild
openaire +3 more sources