Results 21 to 30 of about 6,972 (211)
Tuning gastropod locomotion: Modeling the influence of mucus rheology on the cost of crawling [PDF]
Common gastropods such as snails crawl on a solid substrate by propagating muscular waves of shear stress on a viscoelastic mucus. Producing the mucus accounts for the largest component in the gastropod's energy budget, more than twenty times the amount ...
A. E. Hosoi+26 more
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Parasitological studies of snails of different regions Ukraine
Dandelion (Gastropoda) is a numerical class of molluscs (about 130 thousand species), which representatives live in seas, salted and freshwater basins, and in wetlands on land.
I. S. Danilova
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Introduction: The objective of the present research was to carry out a comparative assessment of copper, zinc, and selenium concentrations in the meat of edible land snails collected in Poland (Helix pomatia, Cornu aspersum maxima, and Cornu aspersum ...
Drozd Łukasz+6 more
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MICROBIOLOGICAL AND CHEMICAL TESTING OF FOOD SNAILS MARKETEDS IN SARDINIA
A total of 29 samples of snails belonging to the species Helix aspersa, Helix aperta and Helix vermiculata were analysed for the presence of Salmonella spp. and Clostridium perfringens; Cadmium and Lead concentrations were determined by ICP-MS.
T. Tedde+6 more
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Terrestrial gastropod responses to an ecosystem-level calcium manipulation in a northern hardwood forest [PDF]
The effects of acid deposition on soil calcium (Ca), and in turn on land snail populations, have been of heightened concern for several decades. We compiled a 10 year record (1997–2006) of gastropod abundance on two small watersheds at the Hubbard Brook ...
Blum, Joel D.+3 more
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Sensory innervation of the ovotestis in the snailHelix aspersa [PDF]
SUMMARYBecause oviposition in the land snail Helix aspersa is a metabolically expensive process coupled to a high fixed cost, one expects oviposition to occur only when the clutch size surpasses a minimum value at which the reproductive benefit exceeds the cost. We propose that neural innervation of the gonad allows H.
Tomasz Antkowiak, Ronald Chase
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Learning in the land snail (Helix aspersa Müller) [PDF]
A group of two experiments are discussed which demonstrate avoidance learning in land snails. Experiment I utilized the snail’s negative geotaxis and its chemoreceptive characteristics and required the snail to climb a vertical pole which contained a quinine-saturated loop of thread at the top.
Ronald K. Siegel, Murray E. Jarvik
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Translocation of bacteria from animal excrements to soil and associated habitats [PDF]
The population dynamics of Salmonella enterica var. Typhimurium MAE 110 gfp, Escherichia coli O157:H7 gfp, and Pseudomonas fluorescens 32 gfp were investigated in their introduction to cattle excrements and subsequent entering the soil, plants of cress ...
Bruggen, A.H.C., van+3 more
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We used Helix pomatia and Helix aspersa species and measure their growth as the snails were approaching the hibernation season. Helix pomatia 2yo shown a decrease in weight while being raised in enclosed parcels of 4sqm the younger Helix pomatia 1yo as ...
Adrian Toader-Williams, Mihai Bențea
doaj
Use of an anthelmintic to control parasitic nematodes of Helix aspersa (Müller)
Purpose. To estimate the parameters of infestation of Helix aspersa by nematodes, experimentally identify the optimal concentration of anti-helminthic drugs and assess their effectiveness. Methodology.
N. Shmyhol, N. Yesipova, T. Sharamok
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