Length of Survival under Water of various Stages and Species of Ticks, Transmitters of parasitic Encephalitis in the Maritime Province, Far East of the USSR.

Author(s) : Gruzdeva, N.

Journal article : Doklady Akademii nauk SSSR 1943 Vol.38 No.2-3 pp.102-104 pp.

Abstract : The experiments described were carried out in 1941 in view of the common occurrence of rain and floods in the parts of the Maritime Province of the Russian Far Eastrussian far eastSubject Category: Geographic Entities
see more details in which tick-borne encephalitis occurs [cf. R.A.E., B 31 70]. Adults of Ixodes persulcatusixodes persulcatusSubject Category: Organism Names
see more details
, Schulze, and Haemaphysalis concinnahaemaphysalis concinnaSubject Category: Organism Names
see more details
, Koch, were submerged in a forest stream at the end of June, larvae and nymphsnymphsSubject Category: Miscellaneous
see more details of I. persulcatus, H. japónica, Nutt. & Warb., and Dermacentor silvarumdermacentor silvarumSubject Category: Organism Names
see more details
, Olen., were submerged in the stream or in the laboratory in August, September and October, and adults of these three species in the laboratory in October. None of the ticks had fed in the stage in which it was submerged. The numbers of ticks of the various batches dead on successive days are shown in a table; periods of survivalsurvivalSubject Category: Miscellaneous
see more details ranged from less than three days to a little over three weeks. It appeared that adults are in general more resistant than larvae and nymphs, and that the latter become more resistant as the temperaturetemperatureSubject Category: Properties
see more details falls and they become less active. Those submerged in September survived longer in the stream, in which the maximum water temperature was 9-9-5°C. [48-2-49-10F.], than in water at a temperature of 16-18°C. [60-8-64-4°F.]. Maximum resistance to submergence was shown under laboratory conditions in October, when the ticks were about to enter hibernation.
When engorged larvae and nymphs of I. persulcatus and D. silvarum were submerged for periods varying from 2 to 11 days in July or August, the percentage mortalitymortalitySubject Category: Miscellaneous
see more details and the period before the next moult of the survivioYs both increased with the duration of submergence. Submersion for 2-3 days did not prevent the emergence of Hymenopterous parasitesparasitesSubject Category: Organism Groups
see more details from the nymphs of both species. In similar experiments carried out in 1936 by Shpringgol’tz-Schmidt, ovipositing females of D. silvarum succumbed after only a few days’ submergence, a considerable number of the eggs were also killed, and the development of those that survived was markedly retarded. In tests by Olenev in 1941, submergence killed some eggs of I. persulcatus and retarded embryonic developmentembryonic developmentSubject Category: Natural Processes
see more details in the others.

Record Number : 19441000180

Publisher : Moscow

Language of text : Russian

Indexing terms for this abstract:

Organism descriptor(s) : Central European encephalitis virus, DermacentordermacentorSubject Category: Organism Names
see more details, Dermacentor silvarumdermacentor silvarumSubject Category: Organism Names
see more details, HaemaphysalishaemaphysalisSubject Category: Organism Names
see more details, Haemaphysalis concinnahaemaphysalis concinnaSubject Category: Organism Names
see more details, IxodesixodesSubject Category: Organism Names
see more details, Ixodes persulcatusixodes persulcatusSubject Category: Organism Names
see more details, IxodidaeixodidaeSubject Category: Organism Names
see more details, MetastigmatametastigmataSubject Category: Organism Names
see more details, Tick-borne encephalitis virustick-borne encephalitis virusSubject Category: Organism Names
see more details, virusesvirusesSubject Category: Organism Names
see more details

Descriptor(s) : embryonic developmentembryonic developmentSubject Category: Natural Processes
see more details, encephalitisencephalitisSubject Category: Diseases, Disorders, and Symptoms
see more details, floodingfloodingSubject Category: Miscellaneous
see more details, mortalitymortalitySubject Category: Miscellaneous
see more details, nymphsnymphsSubject Category: Miscellaneous
see more details, ovipositionovipositionSubject Category: Miscellaneous
see more details, parasitesparasitesSubject Category: Organism Groups
see more details, streamsstreamsSubject Category: Topographic Features
see more details, survivalsurvivalSubject Category: Miscellaneous
see more details, temperaturetemperatureSubject Category: Properties
see more details, tickborne diseasestickborne diseasesSubject Category: Diseases, Disorders, and Symptoms
see more details, arbovirusesarbovirusesSubject Category: Organism Groups
see more details

Identifier(s) : arthropod-borne viruses, death rate, Eastern Asia, embryo development, embryo growth, encephalomyelitis, Far East USSR, flooded conditions, Russian Federation, tick-borne diseases, Union of Soviet Socialist Republics, USSR Far East, ticks

Geographical Location(s) : East Asiaeast asiaSubject Category: Geographic Entities
see more details, RussiarussiaSubject Category: Geographic Entities
see more details, Russian Far Eastrussian far eastSubject Category: Geographic Entities
see more details, USSRussrSubject Category: Geographic Entities
see more details

Broader term(s) : IxodidaeixodidaeSubject Category: Organism Names
see more details, MetastigmatametastigmataSubject Category: Organism Names
see more details, AcariacariSubject Category: Organism Names
see more details, ArachnidaarachnidaSubject Category: Organism Names
see more details, arthropodsarthropodsSubject Category: Organism Names
see more details, invertebratesinvertebratesSubject Category: Organism Names
see more details, animalsanimalsSubject Category: Organism Names
see more details, eukaryoteseukaryotesSubject Category: Organism Names
see more details, DermacentordermacentorSubject Category: Organism Names
see more details, HaemaphysalishaemaphysalisSubject Category: Organism Names
see more details, IxodesixodesSubject Category: Organism Names
see more details, FlavivirusflavivirusSubject Category: Organism Names
see more details, FlaviviridaeflaviviridaeSubject Category: Organism Names
see more details, positive-sense ssRNA Virusespositive-sense ssrna virusesSubject Category: Organism Names
see more details, ssRNA Virusesssrna virusesSubject Category: Organism Names
see more details, RNA Virusesrna virusesSubject Category: Organism Names
see more details, virusesvirusesSubject Category: Organism Names
see more details, Tick-borne encephalitis virustick-borne encephalitis virusSubject Category: Organism Names
see more details, AsiaasiaSubject Category: Geographic Entities
see more details, APEC countriesapec countriesSubject Category: Institutions and Organisations
see more details, Developed Countriesdeveloped countriesSubject Category: Miscellaneous
see more details, East Asiaeast asiaSubject Category: Geographic Entities
see more details, RussiarussiaSubject Category: Geographic Entities
see more details

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