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master's thesis
Intraspecijska kompeticija juvenilnih jedinki siglalnog raka (Pacifastacus leniusculus, Dana) u laboratorijskim uvjetima
Zagreb: University of Zagreb, Faculty of Science, 2012. urn:nbn:hr:217:280312
Lucić, Ika
University of Zagreb
Faculty of Science
Department of Biology

Institutional repository: Repository of the Faculty of Science

Cite this document

Lucić, I. (2012). Intraspecijska kompeticija juvenilnih jedinki siglalnog raka (Pacifastacus leniusculus, Dana) u laboratorijskim uvjetima (Master's thesis). Zagreb: University of Zagreb, Faculty of Science. Retrieved from https://urn.nsk.hr/urn:nbn:hr:217:280312

Lucić, Ika. "Intraspecijska kompeticija juvenilnih jedinki siglalnog raka (Pacifastacus leniusculus, Dana) u laboratorijskim uvjetima." Master's thesis, University of Zagreb, Faculty of Science, 2012. https://urn.nsk.hr/urn:nbn:hr:217:280312

Lucić, Ika. "Intraspecijska kompeticija juvenilnih jedinki siglalnog raka (Pacifastacus leniusculus, Dana) u laboratorijskim uvjetima." Master's thesis, University of Zagreb, Faculty of Science, 2012. https://urn.nsk.hr/urn:nbn:hr:217:280312

Lucić, I. (2012). 'Intraspecijska kompeticija juvenilnih jedinki siglalnog raka (Pacifastacus leniusculus, Dana) u laboratorijskim uvjetima', Master's thesis, University of Zagreb, Faculty of Science, accessed 22 November 2024, https://urn.nsk.hr/urn:nbn:hr:217:280312

Lucić I. Intraspecijska kompeticija juvenilnih jedinki siglalnog raka (Pacifastacus leniusculus, Dana) u laboratorijskim uvjetima [Master's thesis]. Zagreb: University of Zagreb, Faculty of Science; 2012 [cited 2024 November 22] Available at: https://urn.nsk.hr/urn:nbn:hr:217:280312

I. Lucić, "Intraspecijska kompeticija juvenilnih jedinki siglalnog raka (Pacifastacus leniusculus, Dana) u laboratorijskim uvjetima", Master's thesis, University of Zagreb, Faculty of Science, Zagreb, 2012. Available at: https://urn.nsk.hr/urn:nbn:hr:217:280312

Metadata
TitleIntraspecijska kompeticija juvenilnih jedinki siglalnog raka (Pacifastacus leniusculus, Dana) u laboratorijskim uvjetima
Title (english)Intraspecific competition of signal crayfish (Pacifastacus leniusuclus, Dana) juveniles in laboratory conditions
AuthorIka Lucić
MentorJasna Lajtner (mentor)
Committee memberJasna Lajtner (predsjednik povjerenstva)
Committee memberDanijel Orešić (član povjerenstva)
Committee memberBlanka Cvetko Tešović (član povjerenstva)
Committee memberSandra Radić Brkanac (član povjerenstva)
Committee memberRenata Matoničkin Kepčija (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Science
(Department of Biology)
Zagreb
Defense date and country2012-04-12, Croatia
Scientific / art field,
discipline and subdiscipline		NATURAL SCIENCES
Biology
Abstract
Signalni rak je među najuspješnijim invazivnim stranim vrstama slatkovodnih ekosustava zbog velikih gustoća populacija koje može postići, brzog širenja i izraženog negativnog utjecaja na autohtone vrste rakova. Osim na autohtone vrste rakova, negativno utječe i na druge vrste te strukturu i karakteristike slatkovodnih ekosustava. Cilj ovog rada bio je utvrditi utjecaj gustoće i intraspecijske kompeticije na brzinu rasta juvenilnih jedinki signalnog raka. Provedena laboratorijska istraživanja su pokazala kako je gustoća jedinki obrnuto proporcionalna rastu jedinki. Iako se učestalost ozljeda kliješta (indirektni pokazatelj intenziteta kompeticije) nije statistički značajno razlikovala između akvarija različitih gustoća jedinki, zabilježen je trend povećanja udjela ozljeda kliješta prema akvariju najveće gustoće jedinki. Suprotno očekivanjima, usporedbe mortaliteta između akvarija različitih gustoća jedinki nisu pokazale statistički značajne razlike između smrtnosti jedinki u akvarijima. Prikupljeni podaci iskoristit će se za određivanje optimalnih metoda kontrole ove vrste na rijeci Muri.
Abstract (english)
Signal crayfish is one of the most successful invasive non-indigenous species of freshwater ecosystems due to the high population density which it can achieve, its rapid spreading and noticeable negative impact on indigenous populations of crayfish. In addition to indigenous populations of crayfish, it has a negative impact on other species, as well as the structure and characteristics of freshwater ecosystems. The aim of this study was to determine the influence of density and intraspecific competition on the growth rate of juvenile individuals of signal crayfish. The conducted laboratory studies have shown that the density of individuals is inversely proportional to the growth of individuals. Although the incidence of claw injuries (an indirect indicator of the intensity of competition) was not statistically significantly different among the tanks with different densities of individuals, an increasing trend of claw injury was noted in the tank with the greatest density of individuals. Contrary to expectations, comparisons of mortality among tanks with different densities of individuals showed no statistically significant differences among the mortality of individuals in the tanks. The collected data will be used to determine the optimal control methods of this species in the Mura River.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:217:280312
Study programmeTitle: Enviromental Sciences
Study programme type: university
Study level: graduate
Academic / professional title: magistar/magistra struke znanosti o okolišu (magistar/magistra struke znanosti o okolišu)
Type of resourceText
File originBorn digital
Access conditionsAccess restricted to students and staff of home institution
Terms of useLicence In copyright icon
Created on2017-05-02 09:26:51