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Morfološki opis prebavnih žlez med levitvenim ciklom mokric (Porcellio scaber, Isopoda, Crustacea) : diplomsko delo = Morphological description of digestive gland of terrestrial isopods (Porcellioscaber, Isopoda, Crustacea) in different moulting stages : graduation thesisGaberšček, KristinaThe thesis summarizes the morphological study of terrestrial isopods digestivegland (Porcellio scaber, Isopoda, Crustacea) in different moulting stages. Animal laboratory culture was used, when the ... digestive gland section and fixation had been executed equally. A computer programme served as a meansof picture analysis through which the morphology of the median and posterior part of digestive gland were examined. The animals are classified into four groups (control, premoult, intramoult, postmoult) according to the gut occupation and moulting stage. All animals were weighted and had their digestive glands measured after the fixation. The property of the digestive gland colour appeared to be the most interesting in the further investigation.The average control group hepatopancreas epithelium thickness was between 40 and 70 pm - the epithelium is thinning when the animal is moulting. Animals in other groups (pre and postmoult) have various averages ofepithelium thicknesses. The average hepatopancreas epithelium area changes similarly to the average hepatopancreas epithelium thickness. The average total area of hepatopancreas and average perimeter of hepatopancreas are dependent too, and most variable in moulting group. The folding factor (lumen perimeter / lumen perimeter of cylindrical model) is reduced during the epithelium thinning (the shapes of the cells in epithelium change) which occurs during the animal's moulting. The last part of the thesis presents the study results which can be included in a teaching process. The student activity is appropriate for primary and secondary schools and is most convenient after having studied the land ecosystem or general variability of living creatures. This activity is very important in the education about the environment.Type of material - undergraduate thesisPublication and manufacture - Ljubljana : [K.Gaberšek], 2006Language - slovenianCOBISS.SI-ID - 20875737
Author
Gaberšček, Kristina
Other authors
Drobne, Damjana |
Štrus, Jasna
Topics
Crustacea |
Digestive System |
Anatomy And Histology |
Molting |
Image Processing, Computer-Assisted |
Body Weight |
Crustacea |
Levitev |
Prebavila |
Slika, obdelava z računalnikom |
Telesna teža |
Porcellio Scaber
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Library | Call number – location, accession no. ... | Copy status |
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Faculty of Education, Lj. | Č II 59(043.2) GABERŠČEK, K. Morfološki | available - outside loan, loan period: 7 days |
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Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Gaberšček, Kristina | ![]() |
Drobne, Damjana | 11155 |
Štrus, Jasna | 07737 |
Source: Personal bibliographies
and: SICRIS
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