| observations on the infectivity of parasitic third-stage larvae of uncinaria lucasi stiles 1901 (nematoda: ancylostomatidae) of northern fur seals, callorhinus ursinus linn., on st. paul island, alaska. | twelve fur seal pups, which had not nursed their mothers, were used in an infectivity experiment. pups were exposed to parasitic 3rd-stage larvae of uncinaria lucasi from belly tissues of fur seal bulls, bachelors, and pregnant cows, to determine maturation capability of the larvae. hookworms were not recovered from the intestines of 3 pups receiving larvae from belly blubber of bulls, 6 pups receiving larvae from belly blubber of bachelors, and 1 nonexposed pup. maturation of hookworms did occu ... | 1978 | 149188 |
| activities of dichlorvos or disophenol against the hookworm (uncinaria lucasi) and sucking lice of northern fur seal pups (callorhinus ursinus) on st. paul island, alaska. | one controlled and six critical tests were conducted in july, 1977 with northern fur seal pups (callorhinus ursinus) to determine the efficacies of a single dose of dichlorvos capsules at 29.3 to 32.8 mg/kg, tablets at 10.5 to 11.5 mg/kg, or disophenol at 9.9 mg/kg given subcutaneously against natural infections of adult uncinaria lucasi. in the controlled test, 20 pups were treated and 10 pups were nontreated. removal of hookworms in this test was 99% for five pups receiving dichlorvos capsules ... | 1978 | 739586 |
| life cycle of uncinaria lucasi stiles, 1901 (nematoda: ancylostomatidae) of fur seals, callorhinus ursinus linn., on the pribilof islands, alaska. | | 1965 | 5892851 |
| variable activity of disophenol against hookworms and lice of northern fur seal pups on st. paul island, alaska. | six critical tests with disophenol were conducted in july, 1978, in fur seal pups (callorhinus ursinus) naturally-infected with adult hookworms, uncinaria lucasi, and infested with various stages of two species of sucking lice, proechinopthirus fluctus (ferris) and antarctophthirus callorhini (osborn). disophenol at a dose rate of 12.5 mg/kg was administered subcutaneously to each of six pups. each pup was contained in an individual cage for 60 h posttreatment at which time pups were exmained at ... | 1980 | 7373724 |
| historic importance of some aspects of research by o. wilford olsen on hookworms (uncinaria lucasi) in northern fur seals (callorhinus ursinus) and steller sea lions (eumatopias jubatus) in 1951 on st. paul island, alaska. | the purpose of this paper is to disseminate, more widely, certain historically important aspects of research by o. wilford olsen on hookworms (uncinaria lucasi) in northern fur seals (callorhinus ursinus) and steller sea lions (eumatopias jubatus) in 1951 on st. paul island, alaska. highly meaningful facets of the research were recorded only in a report with limited availability by olsen in 1952. portions of his research presented here include measurements of hookworm free-living infective third ... | 2005 | 15719260 |
| hookworms (uncinaria lucasi) and acanthocephalans (corynosoma spp. and bolbosoma spp.) found in dead northern fur seals (callorhinus ursinus) on st. paul island, alaska in 2007. | intestines of dead northern fur seals (callorhinus ursinus) on st. paul island (spi), alaska were inspected for specific internal parasites (hookworms and acanthocephalans) in july and august, 2007. pups (n=64) were examined for adult hookworms (uncinaria lucasi) and four (6.25%) were infected. the number of specimens per infected pup was 1, 2, 2, or 408. low prevalence was similar to that determined in the last investigation (2001) in dead fur seal pups on spi by two of the present authors (lyo ... | 2008 | 18587686 |
| update on the prevalence of the hookworm, uncinaria lucasi, in northern fur seals (callorhinus ursinus) on st. paul island, alaska, 2011. | prevalence of hookworms (uncinaria lucasi stiles, 1901) was determined in the northern fur seal (callorhinus ursinus linnaeus, 1758) on st. paul island (spi), alaska in july and august, 2011. three of 61 (4.9%) dead pups harbored 1 to 13 adult hookworms each in their intestines. parasitic larvae (l(3)) of hookworms were recovered from the blubber of 4 of 133 (3%) of subadult males (sams) examined. one parasitic l(3) was detected from each infected sam. adult u. lucasi (n = 3) were found in the i ... | 2012 | 22398833 |