Publications
| Title | Abstract | Year Filter | PMID(sorted ascending) Filter |
|---|
| air temperature and direct parititional calorimetry of the california sea lion (zalophus californianus). | 1976 | 3339 | |
| metallothionein and the subcellular localization of mercury and cadmium in the california sea lion. | 1977 | 17507 | |
| characterization of two new serotypes of san miguel sea lion virus. | two new virus isolates, one from a california sea lion (zalophus californianus californianus) and the other from a northern fur seal (callorhinus ursinus) were partially characterized. their physicochemical characteristics were similar to those of vesicular exanthema of swine virus (vesv) and san miguel sea lion virus (smsv). the virion morphology was in both instances typically calicivirus. on the basis of this and the serum cross-neutralization testing, these isolates were classed as two new t ... | 1977 | 67101 |
| a new calicivirus isolated from a marine mammal. | a new serotype of calicivirus, designated as san miguel sea lion virus type 6 (smsv-6), was isolated from vesicular lesions on the flipper of a california sea lion pup. serologic studies show that smsv-6 neutralizing antibodies (sn) occur frequently among california sea lions and occasionally among northern fur seals. feral swine, 1- to 6-week elephant seal pups and grey whales tested negative for smsv-6 antibody. | 1979 | 227346 |
| viruses and virus diseases of marine mammals. | poxvirus and several serotypes of calicivirus cause recognizable disease in marine mammals. pox lesions in pinnipeds are raised and proliferative and are seen most frequently after confinement in captivity. in cetaceans, a poxvirus is associated with a much more benign and chronic lesion called a "tattoo." numerous caliciviruses of differing antigenic types have been isolated from vesicular lesions and aborted fetuses of northern fur seals and california sea lions as well as from clinically norm ... | 1979 | 230170 |
| evidence of duplicity in the retina of the california sea lion (zalophus californianus). | 1975 | 234062 | |
| electrostatic effects in myoglobin. application of the modified tanford-kirkwood theory to myoglobins from horse, california grey whale, harbor seal, and california sea lion. | the modified tanford-kirkwood electrostatic theory (shire et al., 1974a) was applied to ferrimyoglobins from the following animal species: sperm whale (physeter catodon), horse, california grey whale (eschrichtius gibbosus), harbor seal (phoca vitulina), and california sea lion (zalophus californianus). computations were made of the overall hydrogen ion titration curves of the proteins, and of ph and ionic strength variations of ionization equilibria for individual groups in the protein, with pa ... | 1975 | 235950 |
| oxygen cost of swimming in a trained california sea lion. | 1976 | 236115 | |
| thermal insulation of the california sea lion during exposure to heat. | 1975 | 237696 | |
| muscle metabolic profiles and fiber-type composition in some marine mammals. | 1. hexokinase, lactate dehydrogenase, 3-hydroxyacyl-coa dehydrogenase, and malate dehydrogenase activities as well as fiber type composition were determined in skeletal muscles of the california sea lion (zalophus californianus), the sea otter (enhydra lutris), and the pacific white-sided dolphin (lagenorhynchus obliquidens). 2. the subcutaneous muscle of the sea lion had intermediate glycolytic and oxidative enzyme activities. 3. the locomotory muscles examined in the otter and porpoise did not ... | 1978 | 318281 |
| sucrase and cellular development. | the cellular changes that take place as the intestinal cell migrates from crypt to villus are morphologically and biochemically remarkable. it is fortunate that many of these phenomena can be delineated by following enzymic activities. sucrase-isomaltase is a particularly fascinating enzyme complex because it is a marker of the differentiated cell. sucrase is inducible with steroids and protected by the substrate sucrose. purified enzyme can be used to stimulate production of specific antibodies ... | 1979 | 396132 |
| plasma biochemical values of clinically-normal australian sea lions (neophoca cinerea). | seventeen biochemical constituents were assayed in the blood plasma of clinically-normal australian sea lions (neophoca cinerea). the sea lions formed part of a breeding colony which inhabits the southern coast of kangaroo island, south australia. little variation was found in any of the values obtained from animals of different age and sex. the results were compared with values published for california sea lions (zalophus californianus), northern fur seals (callorhinus ursinus), harbor seals (p ... | 1979 | 459034 |
| immobilisation of free-ranging galapagos sea lions (zalophus californianus wollebaeki). | nine free-ranging galápagos sea lions were immobilised for marking, using a combination of ketamine (3 to 5 mg per kg) and xylazine (0.5 to 1.0 mg per kg). the degree of effect depended largely on the animals' behavioural and physiological state before immobilisation (after parturition, high arousal, subject to aggression, etc.) all nine animals survived. overheating in the immobilised state may quickly result in heart and circulatory failures. | 2004 | 516341 |
| acute viral hepatitis in california sea lions. | acute viral hepatitis was diagnosed in five california sea lions (zalophus californianus) stranded along the los angeles coast. light microscopy revealed large nuclear inclusion bodies in hepatocytes. electron microscopy provided evidence that these inclusion bodies were composed of adenovirus-like virions. attempts to grow the virus in cell culture systems were unsuccessful. | 1979 | 521373 |
| salmonellae in feral pinnipeds off the southern california coast. | rectal swabs were collected from 90 northern fur seal (callorhinus ursinus) and 50 california sea lion (zalophus californianus) pups on san miguel island for salmonella screening. three serotypes (newport, heidelberg, and oranienburg) were recovered from 33% of the fur seals and 40% of the sea lions. | 1979 | 522219 |
| parasites and associated pathology observed in pinnipeds stranded along the oregon coast. | forty-two seals and sea lions found dead along the oregon coast were examined for parasites and associated pathology. nematode infections of the lung and/or gastrointestinal tract were the primary cause of death in 5 of 42 animals examined. new distribution records were established for pricetrema zalophi and zalophotrema hepaticum. new host records include z. hepaticum and diphyllobothrium cordatum in the steller's sea lion (eumetopias jubatus); nanophyetus salmincola in the california sea lion ... | 1978 | 567698 |
| diethylcarbamazine citrate for prevention of heartworm (dirofilaria immitis) in the california sea lion (zalophus californianus). | 1977 | 585265 | |
| isolation of san miguel sea lion virus from samples of an animal food product produced from northern fur seal (callorhinus ursinus) carcasses. | a virus was isolated from california sea lions (zalophus californianus californianus) and northern fur seals (callorhinus ursinus) in 1972. it was later named san miguel sea lion virus (smsv). state and federal livestock disease control agencies became concerned, because smsv was found to be indistinguishable from vesicular exanthema of swine virus and to cause (in laboratory trials) clinical signs in swine similar to those produced by vesicular exanthema of swine virus. ground carcasses of nort ... | 1978 | 629435 |
| prevalence of vesicular exanthema of swine antibodies among feral mammals associated with the southern california coastal zones. | serum-neutralizing antibodies to both vesicular exanthema of swine virus (vesv) and san miguel sea lion virus (smsv) were found in a number of animal species having an association with the southern california coastal zones. california sea lions (zalophus californianus) had antibodies to 9 vesv types (a48, c52, d53, e54, f54, g55, i55, j56, and k56). fur seals (callorhinus ursinus) and elephant seal pups (mirounga angustirostris) were tested for antibodies to 6 vesv types and all were negative. c ... | 1978 | 629463 |
| arteriovenous anastomoses in the skin of seals. ii. the california sea lion zalophus californianus and the northern fur seal callorhinus ursinus (pinnipedia: otariidae). | the structure, distribution and density of arteriovenous anastomoses (avas) were studied in body and flipper skin of a california sea lion and a nothern fur seal. in both animals avas consisted of arterial, intermediate and venous segments, and were generally larger and more tortuous in the sea lion than in the fur seal. in the sea lion the majority of avas (72%) occurred in the deeper region of the dermis, and the density was significantly greater in the flippers than in the body. in the northe ... | 1978 | 666020 |
| the upper limit of underwater auditory frequency discrimination in the california sea lion. | 1978 | 690337 | |
| isolation of edwardsiella tarda from three oregon sea mammals. | edwardsiella tarda was isolated from the peritoneal exudate of a steller's sea lion (eumetopias jubata) with peritonitis resulting from a perforating colonic ulcer; from the liver of a harbor porpoise (phocena phocena) with metritis and peritonitis sequela to dystocia; and from the liver of a california sea lion (zalophus californianus) with peritonitis following fracture and necrosis of a lumbar vertebrae. these findings indicate e. tarda is a common opportunistic invader in sick or injured mar ... | 1978 | 691128 |
| hazards of disease transfer from marine mammals to land mammals: review and recent findings. | in a 5-year study (1972-1977) of microbial agents isolated from both clinically normal and diseased marine mammals, it was shown that certain disease agents are widespread in a diversity of ocean populations and that some are also transmissible to a number of terrestrial mammal species. leptospira interrogans serovar pomona has been isolated repeatedly from 2 species of pinnipeds (zalophus californianus califonianus and callorhinus ursinus). some of the more important bacterial pathogens for lan ... | 1978 | 738931 |
| pancreatic duct adenoma and strangulation of the small intestine in a california sea lion (zalophus californianus). | a 16 year-old female california sea lion (zalophus californianus) died in a zoological garden following a period of insidious weight loss. necropsy revealed a loop of intestine strangulated by a fibrous ring connected to a pancreatic mass. histopathologic diagnosis of the latter was pancreatic duct adenoma. | 1978 | 739584 |
| vesicular exanthema of swine. | vesicular exanthema of swine (ves) was first recognized in 1932. at the time, eradication measures and, later, quarantine procedures were instituted and extension of the disease to surrounding farms appeared to have been prevented. between 1932 and 1936, however, seemingly unrelated epizootics continued among swine herds being fed raw garbage. in 1936, ves disappeared only to reappear in 1939. the disease was contained within california until 1952, at which time it spread to all the major swine ... | 1976 | 786969 |
| nodular suppurative cutaneous cellulitis in a galapagos sea lion. | necropsy was performed on a sea lion (zalophus californianus wollebaeki), sacrificed in an advanced (pre-terminal) stage of disease, possibly represenatative of the galapagos epizootic of 1970-71. predominant features of the disease were nonumbilicated multiple suppurative cutaneous nodules, debilitation and loss of motor power. histopathological studies of the skin lesions disclosed suppurative cellulitis, with leucocytic invasion extending, in some instances, to all layers of the epidermis. ps ... | 1975 | 807749 |
| premature parturition in the california sea lion. | twenty percent of the california sea lion pups born on san miguel island die due to premature parturition. specimens collected from premature-partus animals resulted in recovery of a virus, san miguel sea lion virus, indistinguishable from vesicular exanthema of swine virus, and leptospira pomona from some of the premature cows and pups. the age range of 10 females delivering healthy pups in june was 10-14 years. with one exception, the ages in 10 aborting females was 6-8 years. the p,p'-dde le ... | 1976 | 815567 |
| toxoplasmosis in a california sea lion (zalophus californianus). | disseminated toxoplasmosis was diagnosed in a female california sea lion that had been used in thermoregulation studies for about 4 years while housed in a small enclosure with a fresh-water pool at the university of hawaii, honolulu. toxoplasma gondii was demonstrated in and around necrotic lesions of the heart and the stomach. source of the infection was not established; however, studies on toxoplasmosis in cats were being conducted at the institution, and common caretakers attended both group ... | 1977 | 835862 |
| intratracheal injection of antibiotics in the california sea lion, zalophus californianus, and bottlenosed dolphin, tursiops truncatus. | gentamicin and cephaloridine were administered by intratracheal injection to the california sea lion, zalophus californianus, and the bottlenosed dolphin, tursiops truncatus. uptake and clearance of these antibiotics in the blood were monitored. in all cases, absorption through the respiratory mucosa resulted in blood levels approaching therapeutic concentrations despite low dosages. | 1977 | 839623 |
| on urea formation in marine mammals. | ornithine carbamoyltransferase (ec 2.1.3.3) has been determined in homogenates of liver of the sei whale (balaenoptera borealis), the bottle-nose dolphin (porpoise) (tursiops truncatus) and california sea lion (zalophus californianus). these marine mammals show levels of this ornithine-urea cycle enzyme which are typical of terrestrial mammals. | 1977 | 862778 |
| discrimination of pure-tone intensities by the california sea lion. | 1976 | 1010891 | |
| underwater localization of click and pulsed pure-tone signals by the california sea lion (zalophus californianus). | 1975 | 1117093 | |
| conditioned bardycardia in the sea lion zalophus californianus. | 1975 | 1134577 | |
| detection of underwater signals by a california sea lion and a bottlenose porpoise: variation in the payoff matrix. | 1975 | 1141502 | |
| underwater localization of pulsed pure tones by the california sea lion(zalophus californianus). | 1975 | 1184845 | |
| the covalent structure of dog myoglobin. | the primary structure of the myoglobin of the domestic dog (german shepherd) was studied. tryptic and thermolytic peptides were compared with the sequence of other known myoglobins; the stepwise automatic edman's degradation of the whole globin and also the chymotryptic digestion of the median fragment obtained by cnbr cleavage completed this sequence. comparison of the established dog myoglobin structure with those from other carnivora shows 16 differences versus badger, 20 versus harbour seal ... | 1976 | 1252463 |
| california sea lion underwater auditory detection and variation of reinforcement schedules. | 2005 | 1262600 | |
| relationship between heart rate and oxygen consumption during steady-state swimming in california sea lions. | heart rate (fh) and rate of oxygen uptake (vo2) were measured in six subadult california sea lions zalophus californianus while they were at rest and while they were swimming for 15 min at controlled speeds of up to 1.4 m s-1 and pulling loads of up to 3 kg. there was a good linear relationship between fh and vo2 in all six sea lions. the slopes of the individual regression lines varied between 2.66 and 4.36 beats ml-1 o2 kg-1, the intercepts varied between 48.2 and 63.0 beats min-1 and r2 varie ... | 1992 | 1402612 |
| acute hepatic necrosis associated with a sarcocystis-like protozoa in a sea lion (zalophus californianus). | 1992 | 1457561 | |
| fatty-acyl esters of retinol (vitamin a) in the liver of the harp seal (phoca groenlandica), hooded seal (cystophora cristata), and california sea lion (zalophus californianus). | the fatty-acid composition of retinyl esters in the livers of two species of phocid seal, the harp seal (phoca groenlandica, n = 20) and the hooded seal (cystophora cristata, n = 15), and one species of otariid seal, the california sea lion (zalophus californianus, n = 6), was determined. vitamin a ranged in concentration from 4 to 1024 nmol retinol/g liver for the phocids and from 381 to 979 nmol/g liver for the otariids. in most of the livers, retinyl palmitate was not the principal ester, and ... | 1992 | 1482558 |
| positional specificity of gastric hydrolysis of long-chain n-3 polyunsaturated fatty acids of seal milk triglycerides. | long-chain n-3 polyunsaturated fatty acids (n-3 pufa) of marine oils are important dietary components for both infants and adults, and are incorporated into milks following maternal dietary intake. however, little is known about the hydrolysis of these pufa from milk triglycerides (tg) by lipases in suckling young. seals, like humans, possess gastric lipase; however, the milk lipids of seals and sea lions are almost devoid of the readily hydrolyzable medium-chain fatty acids, and are characteriz ... | 1992 | 1491605 |
| pinniped splenic volumes. | splenic volume was measured by computerized axial tomography in three harbor seals (phoca vitulina) and two california sea lions (zalophus californianus). volumes ranged from 228 to 679 ml, representing 0.8-3.0% of calculated percentage body mass. despite possible variation in the state of splenic contraction during the examination, these values are in the upper range of reported mammalian splenic volumes (as % of body mass). this reinforces the pinniped splenic erythrocyte storage concept. | 1992 | 1539742 |
| color vision in the california sea lion (zalophus californianus). | three california sea lions were trained to discriminate between a colored stimulus and two shades of gray in a 3-fold simultaneous choice situation. the colors blue, green and red were tested against shades of gray varying from low to high relative brightness. all animals distinguished blue from gray; two animals also distinguished green from gray; but none discriminated between red and gray. our data suggest that california sea lions have dichromatic color vision. their ability to discriminate ... | 1992 | 1604834 |
| the effect of submergence on heart rate and oxygen consumption of swimming seals and sea lions. | respiratory, metabolic, and cardiovascular responses to swimming were examined in two species of pinniped, the harbor seal (phoca vitulina) and the california sea lion (zalophus californianus). 1. harbor seals remained submerged for 82-92% of the time at swimming speeds below 1.2 m.s-1. at higher speeds, including simulated speeds above 1.4 m.s-1, the percentage of time spent submerged decreased, and was inversely related to body weight. in contrast, the percentage of time spent submerged did no ... | 1991 | 2045544 |
| new marine calicivirus serotype infective for swine. | a new serotype of calicivirus was isolated from california sea lions (zalophus californianus) with severe vesicular disease. neutralizing antibodies were found in 27 of 82 (32.9%) serum samples from california sea lions and in 15 of 146 (10.3%) serum samples from steller sea lions (eumetopias jubatus) tested. the seropositive animals were widely dispersed along the margins of the eastern pacific basin, from the bering sea to the santa barbara channel. seropositive samples were found from as earl ... | 1990 | 2167030 |
| selenium toxicosis in three california sea lions (zalophus californianus). | selenium poisoning occurs worldwide in nearly all domestic animals. acute selenium poisoning is associated with feeding high levels or injecting excessive amounts of selenium and is usually fatal. the acute poisoning may cause gastrointestinal disturbance, muscle weakness, depression of the central nervous system, prostration and death (1-2). chronic selenium poisoning in cattle, sheep and horses may result from the consumption of seleniferous plants over an extended period of time. chronic sele ... | 1989 | 2617840 |
| chemoreceptively active compounds in secretions, excretions and tissue extracts of marine mammals. | semen, prostate glandular extract, perianal glandular secretion, urine, feces and blood from atlantic bottlenose dolphins, tursiops truncatus, were analyzed chemically by gas chromatography. a fecal sample from a california sea lion, zalophus californianus, was analyzed similarly. acids, esters, amino acids, amines, steroids, esters, sugars and alcohols were among the compounds revealed in the analyses. twenty-two identified compounds can be detected gustatorily in aqueous solutions of sufficien ... | 1985 | 2866871 |
| isolation of a retrovirus and a herpesvirus from a captive california sea lion. | a non-oncogenic retrovirus was isolated from an explanted skin biopsy from a captive california sea lion (zalophus californianus) with a history of recurring skin lesions. the morphology of the viral particles in electron photomicrographs was characteristic of a foamy virus, a retrovirus in the subfamily spumavirinae. viral cytopathic effects consistent with foamy virus infection were observed in subsequent explants of skin and lymph nodes and co-cultivated peripheral blood leukocytes. the sea l ... | 1986 | 3012127 |
| the use of meperidine hydrochloride for chemical restraint in certain cetaceans and pinnipeds. | meperidine hcl was administered intramuscularly by hand-syringe to a number of individuals representing several species of cetaceans (n = 95) and pinnipeds (n = 36). dosage administered was 0.11 mg/kg, 0.23 mg/kg or 0.45 mg/kg, with the majority of animals receiving the middle dosage. meperidine hcl provided moderate restraint in cetaceans without obvious deleterious effects. restraint was achieved rapidly, with maximum effect occurring 20 min after intramuscular injection and lasting for 2 to 3 ... | 1988 | 3193567 |
| protein sequence evidence for monophyly of the carnivore families procyonidae and mustelidae. | the amino acid sequence of the eye lens protein alpha-crystallin a of the ring-tailed cat, bassariscus astutus, has been determined. the sequence of the bassariscus alpha a chain, which is 173 residues long, was compared with the previously determined set of 41 mammalian alpha a sequences. among the investigated carnivores (dog, cat, sloth bear, american mink, gray seal, and california sea lion) the bassariscus alpha a sequence exclusively shares two amino acid replacements with the alpha a chai ... | 1986 | 3444403 |
| diskospondylitis in a california sea lion. | 1986 | 3505958 | |
| swimming in the california sea lion: morphometrics, drag and energetics. | during swimming, the california sea lion, zalophus californianus (lesson), generates thrust forces solely by means of its pectoral flippers. this study examines the drag, energetic cost and efficiency associated with this method of locomotion. sea lions are highly streamlined, with a fineness ratio of 5.5 and maximum girth at 40% of body length. this profile leads to reduced drag and swimming power requirements. films of gliding animals showed the drag coefficient (based on wetted surface area) ... | 2013 | 3694112 |
| gonadotrophin in the term placenta of the dolphin (tursiops truncatus), the californian sea lion (zalophus californianus), the grey seal (halichoerus grypus) and man. | chorionic gonadotrophin activity in extracts of the term placenta of a dolphin, a sea lion and a grey seal was measured by its effectiveness in increasing uterine weight in the mouse and by solid-phase ria using hcg as immunogen and labelled antigen. bioreactive (b) gonadotrophin was found in these placentae and, compared to the human term placenta, the concentration of cg in the dolphin was higher, in the sea lion similar and in the grey seal lower. the biological activity in each species was n ... | 1986 | 3701703 |
| metastatic squamous cell carcinoma in a beached california sea lion (zalophus californianus). | 1986 | 3712660 | |
| artificial language comprehension and size transposition by a california sea lion (zalophus californianus). | a variation of the conditional discrimination procedure defines relations between stimuli (for example, gestural signs and their referents), and it has been used to study language comprehension in california sea lions. the animals followed instructions given by a trainer's gestures designating properties of size, brightness, and location (adjectives), types of objects (nouns), and actions (verbs). the signs can be combined and recombined according to a conditional sequence or syntax. in this stu ... | 1986 | 3802779 |
| antibodies to marine caliciviruses in the steller sea lion (eumetopias jubatus schreber). | sera from 145 steller sea lions (76 adults, three subadults, 37 pups, and 29 fetuses) were tested for neutralizing antibodies to nine marine calicivirus serotypes. antibodies were found to san miguel sea lion virus (smsv) types 1, 5, 6, 7, 8, 10 and 13, and to tillamook (bovine) calicivirus, but no antibodies were found to the walrus calicivirus. titers (microtiter neutralization assay) ranged from 1:20 to 1:320, with many positive reactions at the higher dilutions (greater than or equal to 1:80 ... | 1987 | 3820427 |
| prevalence and distribution of serum neutralizing antibodies to tillamook (bovine) calicivirus in selected populations of marine mammals. | neutralizing antibodies to tillamook calicivirus (tcv) were found in sera collected from california sea lions (zalophus c. californianus lesson) in 1983 and 1984 and in sera collected from steller sea lions (eumetopias jubatus schreber) in 1976 and 1985. the combined prevalence of antibodies for these two species was 10/228 = 4.38%. titers ranged from 1:20 (five animals), to 1:40 (four animals), to 1:80 (one animal) by standard microtiter neutralization assay. the seropositive pinnipeds were dis ... | 1987 | 3820428 |
| ocular anterior segment disease in northern fur seals. | eyes of 1,716 wild northern fur seals (callorhinus ursinus; 1,501 subadults and 215 adults) were examined for the prevalence of ocular anterior segment disease; 4.6% of the seals had clinically recognizable eye lesions. six seals had bilateral eye lesions. corneal scars were the most frequently observed lesion, followed by prominent lens sutures, cataracts, and iris depigmentations. corneal edema, active corneal ulceration, or inflammation was not observed. examination of normal corneas indicate ... | 1985 | 3878353 |
| an epizootic of leptospirosis in california sea lions. | between may and december 1984, an epizootic of leptospirosis in california sea lions (zalophus californianus) occurred along the west coast of the united states from monterey county, calif, northward to seattle, wash. clinical signs observed were severe depression, excessive thirst, and tucked-up posturing, with associated leukocytosis and increased globulin, bun, and creatinine values. effective antibiotic therapy consisted of tetracycline (22 mg/kg of body weight every 8 hours, orally) or pota ... | 1985 | 4077625 |
| nutritional myopathy in a captive california sea lion. | 1985 | 4077648 | |
| conductive heat loss to sand in california sea lions and a harbor seal. | 1974 | 4149005 | |
| evaporative heat loss in the california sea lion and harbor seal. | 1974 | 4151637 | |
| lactose synthetase in mammary gland of the california sea lion. | 1972 | 4196975 | |
| premature births in california sea lions: association with high organochlorine pollutant residue levels. | premature pupping in california sea lions has been noted on the breeding islands since 1968. organochlorine pesticides and polychlorinated biphenyl residues were two to eight times higher in tissues of premature parturient females and pups than in similar tissues of full-term parturient females and pups collected on san miguel island in 1970. | 1973 | 4199282 |
| survey of diseases in free-living california sea lions. | 1974 | 4373587 | |
| auditory sensitivity of a california sea lion to airborne sound. | 1974 | 4424866 | |
| leptospira pomona and reproductive failure in california sea lions. | 1974 | 4443311 | |
| [radiographic observations of a healthy otter zalophus californianus and of an otter with parasitic pneumonia caused by parafilarioides decorus]. | 2016 | 4461446 | |
| leptospirosis in a california sea lion. | 1972 | 4481104 | |
| innervation of the vibrissae of the california sea lion, zalophus californianus. | 1973 | 4723405 | |
| oxygen uptake of the california sea lion and harbor seal during exposure to heat. | 1973 | 4726508 | |
| heartworms in captive california sea lions. | 1973 | 4795400 | |
| behavioral thermoregulation in the california sea lion. | 1974 | 4815152 | |
| california sea lion myoglobin. complete covalent structure of the polypeptide chain. | 1974 | 4850855 | |
| verminous pneumonia in the california sea lion (zalophus californianus). | 2016 | 4937313 | |
| ddt in california sea lions. | 1971 | 4942890 | |
| underwater audiogram of the california sea lion by the conditioned vocalization technique. | conditioning techniques were developed demonstrating that pure tone frequencies under water can exert nearly perfect control over the underwater click vocalizations of the california sea lion (zalophus californianus). conditioned vocalizations proved to be a reliable way of obtaining underwater sound detection thresholds in zalophus at 13 different frequencies, covering a frequency range of 250 to 64,000 hz. the audiogram generated by these threshold measurements suggests that under water, the r ... | 1972 | 5033891 |
| respiratory variation of heart rate in the california sea lion. | 1972 | 5058365 | |
| behavioral control of body temperature in the unrestrained california sea lion. | 1971 | 5134250 | |
| isolation of leptospira pomona from a naturally infected california sea lion, sonoma county, california. | 1971 | 5156488 | |
| verminous pneumonia in the california sea lion (zalophus californianus). | 1971 | 5167763 | |
| development of a fatted male phenomenon in california sea lions. | 1971 | 5170706 | |
| aerial and underwater visual acuity in the california sea lion (zalophus califernianus) as a function of luminance. | 1971 | 5288866 | |
| anesthesia and restraint for the california sea lion, zalophus californianus. | 1969 | 5388165 | |
| conditioned vocalizations as a technique for determining visual acuity thresholds in sea lions. | aerial visual acuity and underwater visual acuity were measured in two sea lions (zalophus californianus) by training them to emit click bursts if they saw a striped target or to remain silent if they saw a gray target. the closest grating spacings that could be resolved both in air and under water subtended a visual angle of 5.5 minutes of arc at a distance of 5.5 meters. | 1970 | 5424799 |
| leptospirosis epizootic among california sea lions. | a leptospira species is suspected of being the etiological agenit in a recent epizootic among california sea lions. the disease was confined to subadult males of the species zalophus c. californianus. | 1971 | 5576161 |
| barking, dominance, and territoriality in male sea lions. | experiments in which male sea lions (zalophus californianus) were removed and reintroduced into a social group demonstrate that barking by larger males restricts movement and barking by other smaller males. barking and aggression were primarily directed toward animals of most nearly equal size. two 6-year-olds seeking to establish and maintain territorial status used aggressive tactics similar to those observed in breeding males in the field. | 1968 | 5689412 |
| pasteurella multocida isolated from a california sea lion (zalophus californianus). | 1968 | 5692913 | |
| underwater barking by male sea lio (zalophus californianus). | 1969 | 5788987 | |
| shaping and discriminative control of underwater click vocalizations in a california sea lion. | a captive vea lion (zalophus californianus) which had never before produced clicking sounds in the laboratory was first conditioned to vocalize in air and subsequently learned to emit underwater clicks. clicking was brought under control by differential reinforcement procedures. vocalization as an indicator response may be useful in the comparative study of discriminative behavior. | 1965 | 5858032 |
| underwater vocalization by sea lions: social and mirror stimuli. | underwater vocal response of three sea lions (zalophus californianus) increased under conditions of social interaction. when confronted by their mirror images, two animals increased their number of vocalizations, which included "whinny" sounds, barks, buzzing, and varying patterns of click trains. click vocalizations showed habituation and recovery when the animals were in the presence of the mirror stimulus. | 1966 | 5916951 |
| serial discrimination-reversal learning with and without errors by the california sea lion. | a sea lion under water performed virtually without errors on a series of three form-discrimination reversals. significant training requirements were the combining of a previously well-established size cue preference with the nonpreferred form cue, followed by the gradual reduction of the size cue until it was completely eliminated. orienting responses reached a peak and then decreased during progressive-dimensional-change training, suggesting critical stages in the transition of attention from t ... | 1966 | 5964516 |
| attention shift and errorless reversal learning by the california sea lion. | repeated combinations of a previously well-learned size clue preference with the previously negative form cue followed by gradual reduction of the size cue resulted in nearly errorless performance by two sea lion. on a series of nine form-discriminination reversals. systematic insertion of probe trials, during which the size cue was not present, revealed that attention was primarily focused on the size dimension during early stages of training, when size differences were large, and then was grad ... | 1967 | 6022233 |
| a new species of dipetalonema from the california sea lion and a report of microfilariae from a steller sea lion (nematoda: filarioidea). | 1967 | 6062061 | |
| candidiasis in captive pinnipeds. | diagnosis, treatment, and possible pathogenesis of candidiasis were studied in 5 species of pinnipeds in captivity: gray seal (halichoerus grypus), harbor seal (phoca vitulina), northern fur seal (callorhinus ursinus), california sea lion (zalophus californianus), and northern elephant seal (mirounga angustirostris). the animals were kept outdoors in a freshwater exhibit. candidiasis was characterized by purulent nasal discharge, inflammation of the lips at the mucocutaneous junction, periocular ... | 1984 | 6096327 |
| viral hepatitis (adenovirus) in a california sea lion. | a juvenile california sea lion (zalophus californianus) died 28 days after admission to the california marine mammal center. necropsy revealed hemorrhagic fluid in the stomach and hepatomegaly. histologically, there was evidence of multifocal necrotizing hepatitis and acute suppurative bronchopneumonia. amphophilic intranuclear inclusions were found, and electron microscopy revealed virions morphologically classifiable as adenovirus. | 1981 | 6276345 |
| calicivirus-induced vesicular disease in cetaceans and probable interspecies transmission. | a calicivirus isolated from cetaceans is a new serotype designated cetacean calicivirus tursiops-1 (ccv-tur-1). it appears to have spread from an initially infected atlantic bottlenose dolphin to a california sea lion, and was then carried by the sea lion to a second facility several miles away, where a second dolphin became infected and developed vesicular skin lesions that eroded, leaving shallow ulcers. cetaceans and pinnipeds belong to separate orders, so this finding of interspecies transmi ... | 1983 | 6315658 |
| polyradiculoneuritis in a california sea lion. | 1984 | 6511605 | |
| a two-active site one-polypeptide enzyme: the isomaltase from sea lion small intestinal brush-border membrane. its possible phylogenetic relationship with sucrase-isomaltase. | the enzyme responsible for all of the isomaltase activity and much of the maltase activity in the small intestine of the californian sea lion (zalophus californianus) was isolated by detergent solubilization of the brush-border membrane, followed by immunoadsorption chromatography using antibodies directed against rabbit sucrase-isomaltase. in 0.1% triton x-100, sea lion isomaltase occurs as a monomer of mr = 245,000 and is composed of a single polypeptide chain. as judged from the stoichiometry ... | 1984 | 6715326 |
| disaccharidase-deficient animals have normal ultrastructure of intestinal brush border membranes. | the intestinal disaccharidases, lactase, sucrase-isomaltase complex, and glucoamylase are proteins intimately associated with the brush-border membrane of the epithelial cell. these three enzyme activities are found in the intestine of the adult rat; lactase and glucoamylase activities are primarily associated with the intestine of the infant rat. only glucoamylase and isomaltase activities are detected in the intestine of the california sea lion, zalophus californianus. the activities of these ... | 1981 | 6794915 |