Odabir staništa invazivne sunčanice (Lepomis gibbosus) i veličina populacije u ihtiocenozi malih vodotoka

master's thesis

• Title (english): Habitat selection of the invasive pumpkinseed (Lepomis gibbosus) and population size in ichthyocenoses of small waterbodies
• Author: Franko Luburić
• Mentor: Marina Piria (mentor)
• Committee member: Marina Piria (predsjednik povjerenstva)
• Committee member: Tea Tomljanović (član povjerenstva)
• Committee member: Lidija Svečnjak (član povjerenstva)
• Granter: University of Zagreb; Faculty of Agriculture; (Department of Fisheries, Beekeeping, Game Management and Special Zoology); Zagreb
• Defense date and country: 2023-09-12, Croatia
• Scientific / art field, discipline and subdiscipline: BIOTECHNICAL SCIENCES; Agronomy

Abstract

Sunčanica je riba koja potječe iz Sjeverne Amerike. Krajem 19. stoljeda unesena je u Europu. Godine 2014. postala je dio popisa najinvazivnijih vrsta u Europi. Cilj ovog rada bio je identificirati njezino najprikladnije stanište, veličinu uspostavljene populacije i njezin odnos s drugim vrstama. Istraživanja su provedena 2019. i 2020. godine na vodotocima kontinentalne Hrvatske. Uzorkovanje je provedeno elektroribolovom na 249 lokacija. Za svaki lokalitet uzorkovanja izračunati su indeksi bioraznolikosti. Povezanost vrsta sa staništem i nativnim vrstama analizirana je kanoničkom korespodentnom analizom. Sunčanica je zabilježena na 71 lokaciji, uglavnom u stajadim vodama i kanalima slabog protoka. Obitava zajedno s unesenim američkim somidem, babuškom te nativnom crvenperkom, deverikom i štukom. Rezultati su pokazali da njezina prisutnost nije značajno utjecala na bioraznolikost ihtiocenoza.

Abstract (english)

The pumpkinseed is a fish that originates from North America. At the end of the 19th century it was introduced to Europe. In 2014, species became a part of the list of the most invasive species in Europe. The aim of this work was to identify its most suitable habitat, the size of the established population and its relationship with other species. The research was conducted in 2019 and 2020 in the watercourses of continental Croatia. Sampling was performed by electrofishing at 249 locations. The biodiversity indices were calculated for each sampling locality. The association of species with habitat and native species was analyzed by canonical correspondence analysis. The pumpkinseed was recorded at 71 locations, mostly at the stagnant waters and low-flow canals. It is observed together with introduced black bullhead, gibel carp and native rudd, bream and pike. The results showed that its presence had no significant impact on the biodiversity of ichthyocenoses.

• Keywords: sunčanica; stanište; vodotoci kontinentalne Hrvatske; bioraznolikost; nativna ihtiocenoza
• Keywords (english): pumpkinseed; habitat; watercourses of continental Croatia; biodiversity; native ichthyocenoses
• Language: croatian
• URN:NBN: urn:nbn:hr:204:146960
• Study programme: Title: Fisheries and Game Management; Study programme type: university; Study level: graduate; Academic / professional title: magistar/ magistra inženjer/inženjerka ribarstva i lovstva (magistar/ magistra inženjer/inženjerka ribarstva i lovstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Access restricted to authenticated users
• Created on: 2023-09-19 07:28:19