نتایج جستجو برای: helix aspersa

تعداد نتایج: 25649  

Journal: :Annals and Magazine of Natural History 1855

2015
Antonello Cicero Giuseppe Giangrosso Gaetano Cammilleri Andrea Macaluso Vittoria Currò Lucia Galuppo Daniela Vargetto Domenico Vicari Vincenzo Ferrantelli

In this study 160 samples of snails belonging to the species Helix aspersa maxima and Helix aspersa muller were examined for chemical and microbiological analysis. Samples came from Greece and Poland. Results showed mean concentration of cadmium (0.35±0.036 mg/kg) and lead (0.05±0.013 mg/kg) much higher than the limit of detection. Mercury levels in both species were not detected. Microbiologic...

2017
Kambiz Minaei Majid Mirab-balou

Corresponding author: Kambiz Minaei, E-mail: [email protected] Copyright © 2017, Minaei. This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. First description of the male of Dendrothrips aspersus (...

2014
Ozcan Baris Citil Yener Tekeli Hatice Danahaliloglu Serbay Bucak

Background: The aim of the present study is the determination of the effects of seasonal variations on the proximate analysis, cholesterol content and fatty acid compositions of Helix aspersa. Materials and Methods: Garden snails (Helix aspersa) were picked up by hand from the Central Anatolia Region of Turkey, in autumn (November) and spring (April) in 2011. Fatty acid methyl esters (FAMEs) an...

Journal: :Reproduction, nutrition, development 1992
B Griffond J Van Minnen C Colard

alpha CDCP is a neuropeptide produced by the caudodorsal cells of Lymnaea stagnalis and encoded by the genes of the egg-laying hormone (ELH). The use of a polyclonal antiserum raised against alpha CDCP resulted in the detection of about 800 immunoreactive neurons in the parietal ganglia and a small population (60 cells) in the cerebral ganglia of Helix aspersa. As the genes of ELH are well cons...

2015
Mustafa Köse Mustafa Eser Kürşat Kartal Mehmet Fatih Bozkurt

The aim of this study was to determine the presence and prevalence of larval stages of Dicrocoelium dendriticum and Brachylaima sp. in the first intermediate host, a species of land snail, Helix aspersa, in Turkey. A total of 211 snails were collected in April-May 2014 from pastures in Mersin District. Larval stages of D. dendriticum were identified under a light microscope. Hepatopancreas from...

Journal: :Ecotoxicology 2021

Three soil types with different physicochemical properties were selected to evaluate their effect on lead and cadmium bioavailability toxicity in the land snail Helix aspersa. In 28-day ecotoxicity tests, H. aspersa juveniles exposed increasing concentrations of Pb or Cd. EC50s, reducing growth by 50%, differed between soils so did Cd uptake snails. For lead, EC50s 2397–6357 mg Pb/kg dry soil, ...

Journal: :Environmental toxicology and chemistry 2002
Vaufleury Annette Gomot-de François Pihan

Using two biological characteristics of the land snail (subspecies Helix aspersa aspersa and Helix aspersa maxima), i.e., soil eating and crawling on wet surfaces, methods were developed to assess the bioavailability of heavy metals (Cd, Cr, Pb, and Zn) from soil and aqueous leachates of soil. Measurement of heavy-metal concentrations in soil, leachates, and soft tissues of snails showed that c...

Journal: :Annals and Magazine of Natural History 1871

2007
John K. Perrott Iris I. Levin Elizabeth A. Hyde Robert Findlay

Size, density and distribution of the brown garden snail (Cantareus aspersus) were observed relative to cover at a coastal reserve on the North Island, New Zealand. Cover variables depended on vegetation height and available debris (rubbish, wood, cow dung). Air temperature, ground temperature, and relative humidity were recorded continuously during the field survey for the various cover types....

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