| 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 |
| chlorinated hydrocarbon and pcb residues in tissues and lice of northern fur seals, 1972. | ddt, dieldrin, and pcb contents of tissues and the sucking lice of the northern fur seal (callorhinus ursinus) were studied in samples collected in july 1972 in the pribilof islands, alaska. they included the analyses of two nursing cows and their two newborn pups, three 2-month-old pups, and the sucking lice inhabiting these animals, antarctophthirus callorhini and proechinophthirus fluctus. the sigmaddt content of fat tissue was 5.2, 5.6 and 63 mug/g (-/x) for cows, newborns, and 2-month-old p ... | 1976 | 826876 |
| two bacterial genera, sodalis and rickettsia, associated with the seal louse proechinophthirus fluctus (phthiraptera: anoplura). | roughly 10% to 15% of insect species host heritable symbiotic bacteria known as endosymbionts. the lice parasitizing mammals rely on endosymbionts to provide essential vitamins absent in their blood meals. here, we describe two bacterial associates from a louse, proechinophthirus fluctus, which is an obligate ectoparasite of a marine mammal. one of these is a heritable endosymbiont that is not closely related to endosymbionts of other mammalian lice. rather, it is more closely related to endosym ... | 2016 | 26994086 |