magistrsko delo
Andraž Dolar (Author), Damjana Drobne (Reviewer), Anita Jemec (Mentor), Anita Jemec (Thesis defence commission member), Damjana Drobne (Thesis defence commission member), Primož Zidar (Thesis defence commission member)

Abstract

Onesnaženost okolja z mikroplastiko je globalni problem, ki se ga ob samem začetku množične proizvodnje plastičnih materialov nismo zavedali, danes pa ugotavljamo vse več negativnih vplivov na kopenske, morske in sladkovodne organizme. Tekstilna plastična mikrovlakna (t. i. mikrovlakna, dolžina pod 5 mm) so ena izmed mnogih oblik mikroplastike, ki se kopiči v okolju. Z magistrskim delom smo želeli preveriti vpliv mikrovlaken (dolžine 15–1288 µm) kot tudi tekstilnih plastičnih mezovlaken (t. i. mezovlakna, 11.81 ± 3.7 mm) na kopenske rake enakonožce vrste Porcellio scaber Latreille po dolgotrajni štiritedenski izpostavitvi. Spremljali smo prehranjevanje, rast in nivo energetskih zalog (ogljikovi hidrati, lipidi, proteini) kopenskih rakov enakonožcev, izpostavljenih zemlji z mikro-/mezovlakni, ter pojav izbirnega vedenja pri rakih, izpostavljenih neonesnaženi in onesnaženi zemlji z mikrovlakni. Ugotovili smo, da kronična izpostavitev v izbranih koncentracijah mikrovlaken in mezovlaken v zemlji ne vpliva statistično pomembno na izbrane testne parametre kopenskih rakov enakonožcev. Pomembno bi bilo preveriti vpliv mikroplastike, ki se kopiči v okolju, pri še višjih koncentracijah in po daljši kronični izpostavitvi ter uporabiti še dodatne metode za spremljanje laboratorijsko merljivih subletalnih odzivov poskusnih organizmov.

Keywords

mikrovlakna;mezovlakna;kopenski rak enakonožec;Porcellio scaber;

Data

Language: Slovenian
Year of publishing:
Typology: 2.09 - Master's Thesis
Organization: UL BF - Biotechnical Faculty
Publisher: [A. Dolar]
UDC: 504.5:595.3(043.2)
COBISS: 4890703 Link will open in a new window
Views: 1026
Downloads: 319
Average score: 0 (0 votes)
Metadata: JSON JSON-RDF JSON-LD TURTLE N-TRIPLES XML RDFA MICRODATA DC-XML DC-RDF RDF

Other data

Secondary language: English
Secondary title: Effects of microplastics on feeding and growth of terrestrial isopods after long-term exposure
Secondary abstract: Microplastics pollution of the environment is a global problem that was not realized at the very beginning of the plastic materials mass production, but today we are finding more and more negative effects on terrestrial, marine and freshwater organisms. Textile plastic microfibers (so-called microfibers, length bellow 5 mm) are one of many microplastic forms, accumulating in the environment. With the master master`s thesis we wanted to check the effect of microfibers (length 15–1288 µm) and textile plastic mesofibers (so-called mesofibers, 11.81 ± 3.7 mm) on the tererestrial isopod Porcellio scaber Latreille, after prolonged four week exposure. We monitored feeding, growth and level of the energy reserves (carbohydrates, lipids, proteins) of terrestrial isopods exposed to micro/mesofibers in the soil and the occurrance of the the selective behaviour of isopods, exposed to uncontaminated and with microfibers contaminated soil. We found out that chronic exposure to the selected concentrations of microfibers and mesofibers in the soil, does not have a statistically significant effect on the selected parameters of the terrestrial isopods. It would be important to examine the impact of the microplastic accumulation in the environment at even higher concentrations and after a longer chronic exposure and to use additional methods for monitoring labaratory measurable sublethal responses of experimental organisms.
Secondary keywords: microfibers;mesofibers;terrestrial isopod;Porcellio scaber;
Type (COBISS): Master's thesis/paper
Study programme: 0
Embargo end date (OpenAIRE): 1970-01-01
Thesis comment: Univ. Ljubljana, Biotehniška fak.
Pages: VIII, 43, [1] str.
ID: 10957194