Viviparus


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The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Viviparus

 

a genus of freshwater gastropod mollusks of the subclass Prosobranchia. The opening of the shell is covered by an operculum that permits Viviparus to survive unfavorable conditions. The young develop in the body of the mother and emerge fully formed (hence the name). Viviparus is widely distributed in stagnant bodies of water and in flowing streams. There are several species in the USSR; the most common is V. viviparus (shell up to 3.5 cm high).

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
Several fish consumed large numbers of only one or two taxa; we observed >10 individuals (range in abundance of 11 to 108 individuals) for Viviparus snails (six fish), chironomids (five fish), Pleurocera snails (two fish), zebra mussels (two fish), water mites (one fish), Ostracoda (one fish), and Corbicula (one fish).
planorbis (Linnaeus, 1758); Viviparus contectus (Millet, 1813); Valvata (V.) piscinalis (Muller, 1774), and 1 terrestrial species--Succinea (S.) pfeifferi (Rossmassler, 1834).
In Mexico, species such as Goodea atripinnis and Girardinichthys viviparus have been frequently used to assess pollution in aquatic ecosystems, mainly in the center of the country.
Apparent prevalence and risk factors for infection with Ostertagia ostertagi, Fasciola hepatica and Dictyocaulus viviparus in Swiss dairy herds.
musculus England (10) Synaptobothrium England (10), (32) caudiporum France (39) Zoogonoides viviparus Icelandic Waters (35) CESTODA Bothrioceplialus lophii Germany (40) Grillotia sp.
DNA damage in eelpout (Zoarces viviparus) from Goteborg harbour.
Ammonia excretion in snails Viviparus bengalensis (Lamarck) and Pila globosa (Swainson) during active and dormant periods.
POSSIBLE RESISTANCE OF Dictyocaulus viviparus TO FENBENDAZOLE IN A BOVINE
La ERB es una enfermedad infecciosa multifactorial, causada principalmente por virus (herpes virus bovino-1, virus de la diarrea viral bovina, parainfluenza-3, virus sincitial respiratorio bovino), bacterias (Mannheimia haemolytica, Pasteurella multocida, Histophilus somni), parasitos (Dictyocaulus viviparus) y Mycoplasma bovis (19,41,51).
Histochemical and biochemical features of lead Viviparus viviparous (Mollusca, Gastropoda).