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master's thesis
Struktura populacija i dinamika razmnožavanja vrste Niphargus dalmatinus (Crustacea, Amphipoda) duž toka rijeke Cetine
Zagreb: University of Zagreb, Faculty of Science, 2009. urn:nbn:hr:217:403846
Jandrić, Nina
University of Zagreb
Faculty of Science
Department of Biology

Institutional repository: Repository of the Faculty of Science

Cite this document

Jandrić, N. (2009). Struktura populacija i dinamika razmnožavanja vrste Niphargus dalmatinus (Crustacea, Amphipoda) duž toka rijeke Cetine (Master's thesis). Zagreb: University of Zagreb, Faculty of Science. Retrieved from https://urn.nsk.hr/urn:nbn:hr:217:403846

Jandrić, Nina. "Struktura populacija i dinamika razmnožavanja vrste Niphargus dalmatinus (Crustacea, Amphipoda) duž toka rijeke Cetine." Master's thesis, University of Zagreb, Faculty of Science, 2009. https://urn.nsk.hr/urn:nbn:hr:217:403846

Jandrić, Nina. "Struktura populacija i dinamika razmnožavanja vrste Niphargus dalmatinus (Crustacea, Amphipoda) duž toka rijeke Cetine." Master's thesis, University of Zagreb, Faculty of Science, 2009. https://urn.nsk.hr/urn:nbn:hr:217:403846

Jandrić, N. (2009). 'Struktura populacija i dinamika razmnožavanja vrste Niphargus dalmatinus (Crustacea, Amphipoda) duž toka rijeke Cetine', Master's thesis, University of Zagreb, Faculty of Science, accessed 21 November 2024, https://urn.nsk.hr/urn:nbn:hr:217:403846

Jandrić N. Struktura populacija i dinamika razmnožavanja vrste Niphargus dalmatinus (Crustacea, Amphipoda) duž toka rijeke Cetine [Master's thesis]. Zagreb: University of Zagreb, Faculty of Science; 2009 [cited 2024 November 21] Available at: https://urn.nsk.hr/urn:nbn:hr:217:403846

N. Jandrić, "Struktura populacija i dinamika razmnožavanja vrste Niphargus dalmatinus (Crustacea, Amphipoda) duž toka rijeke Cetine", Master's thesis, University of Zagreb, Faculty of Science, Zagreb, 2009. Available at: https://urn.nsk.hr/urn:nbn:hr:217:403846

Metadata
TitleStruktura populacija i dinamika razmnožavanja vrste Niphargus dalmatinus (Crustacea, Amphipoda) duž toka rijeke Cetine
Title (english)Population density and reproduction of Niphargus dalmatinus (Crustacea, Amphipoda) along the river Cetina
AuthorNina Jandrić
MentorSanja Gottstein (mentor)
MentorKrešimir Žganec (sumentor)
GranterUniversity of Zagreb
Faculty of Science
(Department of Biology)
Zagreb
Defense date and country2009, Croatia
Scientific / art field,
discipline and subdiscipline		NATURAL SCIENCES
Biology
Abstract
Zakonitosti razmnožavanja vrste Niphargus dalmatinus je istraživana na 8 postaja gornjeg, srednjeg i donjeg toka rijeke Cetine te na jednoj od pritoka, rijeci Rudi, u razdoblju od kolovoza 2004. do kolovoza 2005. godine. Iako pripada podzemnom rodu rakušaca, vrsta uglavnom nastanjuje nadzemne vodotoke Srednje Dalmacije. Budući je do sada nepoznata ekologija vrsta istraživanog roda u nadzemnim staništima, cilj ovog rada je prvenstveno bio ustanoviti ekologiju i reproduktivnu biologiju vrste Niphargus dalmatinus, dok je posebni naglasak bio na utjecaju abiotičkih čimbenika okoliša na pojavljivanje ovigernih ženki. Dobiveni rezultati ukazuju na jasnu povezanost longitudinalne rasprostranjenosti, promjene gustoće populacija i pojavljivanja ovigernih ženki s vrijednostima temperature vode. Gustoća populacija je najveća u području eukrenala rijeke Cetine, pri vrijednostima temperature vode manjim od 10°C. Ovigerne ženke su zabilježene samo na postajama gornjeg i donjeg toka rijeke tijekom čitave godine, ali s većom brojnošću tijekom jeseni (u studenom) i proljetnih mjeseci (ožujka, travnja i svibnja). Rezultati provedenog istraživanja upućuju na zaključak da je vrsta bivoltna tj. da spolno aktivne ženke produciraju dva legla godišnje. Jedinke s obilježjima interseksa i jedinke u ampleksusu kod istraživane vrste nisu zabilježene tijekom ovog istraživanja.
Abstract (english)
The reproductive traits of Niphargus dalmatinus were examined from August 2007 to August 2008 at eight study sites located in the upper, middle and lower reaches of the Cetina River and its tributary the Ruda River. Although the species belongs to the subterranean genus, it inhabits epigean streams in the Middle Dalmatia. Whereas the ecology of the species in the epigean habitats remains unknown, the primary goal was to establish the ecology and reproductive biology of the species. Influence of abiotic factors on appearance of ovigerous females was the main focus of the research. The obtained results pointed out a strong relationship between longitudinal variation in population density, appearance of ovigerous females and water temperature. The highest population density of the species was recorded in the eucrenal zone of the Cetina River, with the water temperature below 10°C. The ovigerous females were recorded year-round in the upper and lower reaches only, with high density during the autumn (October) and spring (March, April, May). The populations studied in this work appears to be bivoltine, but the data are not sufficiently consistent to confirm the hypothesis. Amplexus and intersex individuals of N. dalmatinus were not observed in our study.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:217:403846
Study programmeTitle: Ecology
Study programme type: university
Study level: graduate
Academic / professional title: magistar/magistra ekologije i zaštite prirode (magistar/magistra ekologije i zaštite prirode)
Type of resourceText
File originBorn digital
Access conditionsOpen access
Terms of useLicence In copyright icon
Created on2018-03-12 09:54:11