| metazoan parasites from odontocetes off new zealand: new records. | information about the parasite fauna of spectacled porpoises and cetaceans from new zealand waters in general is scarce. this study takes advantage of material archived in collections of the otago museum in dunedin and massey university in auckland, sampled from cetacean species found stranded along the new zealand coastline between 2007 and 2014. parasites from seven species of cetaceans (spectacled porpoise, phocoena dioptrica (n = 2 individuals examined); pygmy sperm whale (n = 1); long-finne ... | 2017 | 28799088 |
| organochlorine chemical and heavy metal contaminants in white-beaked dolphins (lagenorhynchus albirostris) and pilot whales (globicephala melaena) from the coast of newfoundland, canada. | | 1988 | 3214191 |
| ultrasonic studies on the head oil of the north atlantic pilot whale (globicephala melaena melaena). | | 1976 | 977837 |
| variations in lipid composition and sound velocity in melon from the north atlantic pilot whale, globicephala melaena melaena. | nonpolar lipids and sound velocity at different distances from the skin surface within a sample of pilot whale melon were studied. thin layer chromatography, sensitive radioisotopic methods, and an ultrasonic echo scanner were used. wax esters had a maximum concentration at 11-12 cm from the skin surface. non- and monoisovalero triglycerides both exhibited a minimum at 8-10 cm, whereas the diisovalero species increased steadily from the skin surface towards the center of the pilot whale head. a ... | 1976 | 1250078 |
| unusual lipids. ii. head oil of the north atlantic pilot whale, globicephala melaena melaena. | | 1974 | 4366536 |
| heterogeneity of lipid composition within the cephalic melon tissue of the pilot whale (globicephala melaena). | | 1973 | 4776442 |
| [composition of the neutral lipids and the fatty acids from whale brains. 3. brains from pilot whales (globicephala melaena)]. | | 1968 | 5688037 |
| helminth parasites of the pilot whale globicephala melaena (traill 1809). | | 1967 | 6066760 |
| pathology of the pilot whale. globicephala melaena. a comparative survey. | | 1966 | 5949961 |
| an efficient clean-up method for the gc-ms determination of methylsulfonyl-pcbs/ddes extracted from various marine mammal tissues. | existing methods for analyzing methylsulfonyl-pcbs in animal tissues require multiple laborious clean-up steps prior to quantitation. in this paper, we report a new, efficient method for the isolation and determination of methylsulfonyl-pcb metabolites in the blubber, liver, kidney, lung, and milk from mammals of marine origin using: solvent extraction, gpc fractionation, and clean-up on an adsorption chromatography column prior to analysis by gas chromatography-mass spectrometry. the method is ... | 2001 | 11525427 |
| organochlorines in stranded pilot whales (globicephala melaena) from the coast of massachusetts. | pilot whales strand periodically along the u.s. coast, and these strandings offer an opportunity for the collection of tissues for biomonitoring of contaminant exposure in cetaceans, as well as for specimen archiving. concentrations of organochlorine (oc) contaminants (e.g., pcb congeners, pesticides, ddts) were measured in tissue samples from pilot whales that stranded in 1986 and 1990 along the massachusetts coast. adult and fetal samples of blubber, liver, brain, and kidney were collected, as ... | 1999 | 10341050 |
| the arterial vessels of the neck in the pilot-whale (globicephala melaena traill) and the porpoise (phocaena phocaena l.) in relation to the carotid body. | | 1959 | 13660638 |
| observations on the ovary and reproductive tract of the ca'aing whale, globicephala melaena. | | 1949 | 18224828 |
| distribution of dopaminergic fibers and neurons in visual and auditory cortices of the harbor porpoise and pilot whale. | the distribution of putative dopaminergic fibers in two sensory cortical areas in the brain of the harbor porpoise (phocoena phocoena) and pilot whale (globicephala melaena) was analyzed at the light and electron microscopic levels using tyrosine hydroxylase (th) immunohistochemistry. the quantitative analysis of the distribution of labeled fibers demonstrates that the primary visual cortex located in the lateral gyrus and entolateral sulcus contains a denser dopaminergic innervation than the au ... | 1995 | 7697381 |
| organochlorines and mercury in pilot whale blubber consumed by faroe islanders. | some 22,000 pilot whales (globicephala melaena) were taken in the faroe islands between 1970 and 1992. it is known that tissues from these animals are widely consumed by the islanders. the position of these animals at the apex of a direct marine food chain renders them liable to accumulate toxic chemicals, such as metals and organochlorines. although the consumption of contaminating metals in pilot whale tissues has been studied, the significance of blubber as a dietary source of organochlorine ... | 1994 | 8029711 |
| social structure of pilot whales revealed by analytical dna profiling. | long-finned pilot whales swim in large, extremely cohesive social groups known as pods. molecular typing revealed that pod members form a single extended family. mature males neither disperse from nor mate within their natal pods, a situation unusual for mammals. such behavior could be explained in terms of inclusive fitness benefits gained by adult males helping the large number of female relatives with which they swim. | 1993 | 8480176 |
| ultrastructure of synapses and golgi analysis of neurons in neocortex of the lateral gyrus (visual cortex) of the dolphin and pilot whale. | qualitative and computerized quantitative analyses of ultrastructural features of synapses in different layers of the primary visual cortex in the dolphin (stenella coeruleoalba) and the pilot whale (globicephala melaena) were carried out. also, golgi and cytoarchitectonic analyses were performed in the same species of cetaceans and, additionally, in tursiops truncatus and phocaena phocaena. it was found that on a synaptic level, as well as in cytoarchitectonic and golgi features, the neocortex ... | 1990 | 2337821 |
| vocal repertoire of long-finned pilot whales (globicephala melas) in northern norway. | the knowledge of the vocal repertoire of pilot whales is very limited. in this paper, the vocal repertoire of long-finned pilot whales recorded during different encounters in the vestfjord in northern norway between november 2006 and august 2010 are described. sounds were analysed using two different methods: (1) an observer-based audio-visual inspection of fft-derived spectrograms, with which, besides a general variety of clicks, buzzes, nonharmonic sounds, and whistles, 129 different distinct ... | 2017 | 28618811 |
| implementation of a method to visualize noise-induced hearing loss in mass stranded cetaceans. | assessment of the impact of noise over-exposure in stranded cetaceans is challenging, as the lesions that lead to hearing loss occur at the cellular level and inner ear cells are very sensitive to autolysis. distinguishing ante-mortem pathology from post-mortem change has been a major constraint in diagnosing potential impact. here, we outline a methodology applicable to the detection of noise-induced hearing loss in stranded cetaceans. inner ears from two mass strandings of long-finned pilot wh ... | 2017 | 28165504 |
| in vivo formation of natural hgse nanoparticles in the liver and brain of pilot whales. | to understand the biochemistry of methylmercury (mehg) that leads to the formation of mercury-selenium (hg-se) clusters is a long outstanding challenge that promises to deepen our knowledge of mehg detoxification and the role se plays in this process. here, we show that mercury selenide (hgse) nanoparticles in the liver and brain of long-finned pilot whales are attached to se-rich structures and possibly act as a nucleation point for the formation of large se-hg clusters, which can grow with age ... | 2016 | 27678068 |
| how effectively do horizontal and vertical response strategies of long-finned pilot whales reduce sound exposure from naval sonar? | the behaviour of a marine mammal near a noise source can modulate the sound exposure it receives. we demonstrate that two long-finned pilot whales both surfaced in synchrony with consecutive arrivals of multiple sonar pulses. we then assess the effect of surfacing and other behavioural response strategies on the received cumulative sound exposure levels and maximum sound pressure levels (spls) by modelling realistic spatiotemporal interactions of a pilot whale with an approaching source. under t ... | 2015 | 25795075 |
| lifetime pcb 153 bioaccumulation and pharmacokinetics in pilot whales: bayesian population pbpk modeling and markov chain monte carlo simulations. | physiologically based pharmacokinetic (pbpk) models for wild animal populations such as marine mammals typically have a high degree of model uncertainty and variability due to the scarcity of information and the embryonic nature of this field. parameters values used in marine mammals models are usually taken from other mammalian species (e.g. rats or mice) and might not be entirely suitable to properly explain the kinetics of pollutants in marine mammals. therefore, several parameters for a pbpk ... | 2014 | 24080004 |
| the role of synchronized swimming as affiliative and anti-predatory behavior in long-finned pilot whales. | synchronized swimming in cetaceans has been hypothesized to play a role in affiliative processes as well as anti-predatory responses. we compared observed variation in synchronized swimming at two research sites in relation to disturbance exposure to test these two hypotheses. this study describes and quantifies pair synchronization in long-finned pilot whales at the strait of gibraltar, spain and cape breton, canada. synchronization differed depending on the behavioral state and the response is ... | 2012 | 22561079 |
| comparison of echolocation clicks from geographically sympatric killer whales and long-finned pilot whales (l). | the source characteristics of biosonar signals from sympatric killer whales and long-finned pilot whales in a norwegian fjord were compared. a total of 137 pilot whale and more than 2000 killer whale echolocation clicks were recorded using a linear four-hydrophone array. of these, 20 pilot whale clicks and 28 killer whale clicks were categorized as being recorded on-axis. the clicks of pilot whales had a mean apparent source level of 196 db re 1 μpa pp and those of killer whales 203 db re 1 μpa ... | 2011 | 21786872 |
| reproductive transfer of organochlorines in viviparous surfperch, ditrema temmincki. | to discuss the maternal-fetal transfer of persistent organic pollutants (pops) in viviparous fish, the whole-body burdens of pops were determined in gravid surfperches from otsuchi bay, japan, and in their fetuses. the concentrations were 2.75-15.5 times higher in the maternal tissue. to compare the characteristics of the maternal-fetal transfer between species with different gestation systems, reports on the striped dolphin and long-finned pilot whales were studied. the transfer rates of pops i ... | 2006 | 16360249 |