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undergraduate thesis
Mramorni rak kao modelni organizam za istraživanje utjecaja organskih zagađivala na slatkovodne beskralježnjake
Zagreb: University of Zagreb, Faculty of Science, 2020. urn:nbn:hr:217:944324
Tarandek, Anita
University of Zagreb
Faculty of Science
Department of Biology

Institutional repository: Repository of the Faculty of Science

Cite this document

Tarandek, A. (2020). Mramorni rak kao modelni organizam za istraživanje utjecaja organskih zagađivala na slatkovodne beskralježnjake (Undergraduate thesis). Zagreb: University of Zagreb, Faculty of Science. Retrieved from https://urn.nsk.hr/urn:nbn:hr:217:944324

Tarandek, Anita. "Mramorni rak kao modelni organizam za istraživanje utjecaja organskih zagađivala na slatkovodne beskralježnjake." Undergraduate thesis, University of Zagreb, Faculty of Science, 2020. https://urn.nsk.hr/urn:nbn:hr:217:944324

Tarandek, Anita. "Mramorni rak kao modelni organizam za istraživanje utjecaja organskih zagađivala na slatkovodne beskralježnjake." Undergraduate thesis, University of Zagreb, Faculty of Science, 2020. https://urn.nsk.hr/urn:nbn:hr:217:944324

Tarandek, A. (2020). 'Mramorni rak kao modelni organizam za istraživanje utjecaja organskih zagađivala na slatkovodne beskralježnjake', Undergraduate thesis, University of Zagreb, Faculty of Science, accessed 01 December 2024, https://urn.nsk.hr/urn:nbn:hr:217:944324

Tarandek A. Mramorni rak kao modelni organizam za istraživanje utjecaja organskih zagađivala na slatkovodne beskralježnjake [Undergraduate thesis]. Zagreb: University of Zagreb, Faculty of Science; 2020 [cited 2024 December 01] Available at: https://urn.nsk.hr/urn:nbn:hr:217:944324

A. Tarandek, "Mramorni rak kao modelni organizam za istraživanje utjecaja organskih zagađivala na slatkovodne beskralježnjake", Undergraduate thesis, University of Zagreb, Faculty of Science, Zagreb, 2020. Available at: https://urn.nsk.hr/urn:nbn:hr:217:944324

Metadata
TitleMramorni rak kao modelni organizam za istraživanje utjecaja organskih zagađivala na slatkovodne beskralježnjake
Title (english)Marble crayfish as a model organism for examining the impacts of organic pollutants on freshwater invertebrates
AuthorAnita Tarandek
MentorSandra Hudina (mentor)
GranterUniversity of Zagreb
Faculty of Science
(Department of Biology)
Zagreb
Defense date and country2020, Croatia
Scientific / art field,
discipline and subdiscipline		NATURAL SCIENCES
Biology
Abstract
Zagađenje slatkovodnih ekosustava predstavlja veliki problem diljem svijeta. Herbicidi i isekticidi česti su zagađivači u površinskim i podzemnim vodama, stoga predstavljaju veliki rizik za neciljanje organizme poput rakova. Tri odvojena eksperimenta proučavala su učinke prometrina, cipermetrina i metazaklora i njegovog metabolita metazaklora OA na mramornom raku Procambarus virginalis. Kronično izlaganje rakova prometrinu utjecalo je na mortalitet, stopu rasta i histologiju. Neke su promjene primjećene kod većih koncentracija, ali histopatološke promjene škrga primjećene su i kod rakova izloženih okolišnim koncentracijama. Nadalje, izlaganje rakova cipermetrinu ukazalo je da cipermetrin izaziva oksidativni stres i poremećaje antioksidativnih sustava rakova. Konačno, uočene su razlike u mortalitetu, stopi rasta, ponašanju, kao i promjene u tkivu škrga nakon izlaganja rakova okolišnim koncentracijama metazaklora i njegovog metabolita metazaklora OA. Zaključno, sve studije ukazale su na negativne učinke organskih zagađivala na rakove.
Abstract (english)
Pollution of freshwater ecosystems is a serious problem worldwide. Herbicides and insecticides are frequent pollutants in surface and groundwaters and they propose a major risk to non-target organisms, such as crayfish. The three separate experiments studied the effects of prometryne, cypermethrin and metazachlor and its metabolite metazachlor OA, respectively, on the marbled crayfish Procambarus virginalis. Chronic exposure of prometryne on early life stages of crayfish has affected their mortality, growth rate, and histology. Some of the changes were observed only at higher exposures, but histopathological changes in gills were observed also in crayfish exposed to environmental concentrations. Furthermore exposure of cypermethrin suggested that cypermethrin causes oxidative stress and also disruption of antioxidant systems in crayfish. Lastly, differences in mortality, growth, behaviour, as well as minimal alterations in gill tissue were observed following exposure to environmentally relevant concentrations of metazachlor and metazachlor OA. In conclusion, all studies suggested that organic pollutants have a negative effect on the marbled crayfish.
Keywords
Languagecroatian
URN:NBNurn:nbn:hr:217:944324
Study programmeTitle: Ecology
Study programme type: university
Study level: undergraduate
Academic / professional title: sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) biologije (sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) biologije)
Type of resourceText
File originBorn digital
Access conditionsOpen access
Terms of useLicence In copyright icon
Created on2020-09-21 13:08:28