prikaz prve stranice dokumenta Predictability of diurnal movements of common bottlenose dolphins (tursiops truncatus) in coastal waters of Cres-Lošinj archipelago
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master's thesis
Predictability of diurnal movements of common bottlenose dolphins (tursiops truncatus) in coastal waters of Cres-Lošinj archipelago
2020. urn:nbn:hr:226:119634
Pokupec, David
University of Split
University Department of Marine Studies

Cite this document

Pokupec, D. (2020). Predictability of diurnal movements of common bottlenose dolphins (tursiops truncatus) in coastal waters of Cres-Lošinj archipelago (Master's thesis). Split: University of Split. Retrieved from https://urn.nsk.hr/urn:nbn:hr:226:119634

Pokupec, David. "Predictability of diurnal movements of common bottlenose dolphins (tursiops truncatus) in coastal waters of Cres-Lošinj archipelago." Master's thesis, University of Split, 2020. https://urn.nsk.hr/urn:nbn:hr:226:119634

Pokupec, David. "Predictability of diurnal movements of common bottlenose dolphins (tursiops truncatus) in coastal waters of Cres-Lošinj archipelago." Master's thesis, University of Split, 2020. https://urn.nsk.hr/urn:nbn:hr:226:119634

Pokupec, D. (2020). 'Predictability of diurnal movements of common bottlenose dolphins (tursiops truncatus) in coastal waters of Cres-Lošinj archipelago', Master's thesis, University of Split, accessed 12 April 2025, https://urn.nsk.hr/urn:nbn:hr:226:119634

Pokupec D. Predictability of diurnal movements of common bottlenose dolphins (tursiops truncatus) in coastal waters of Cres-Lošinj archipelago [Master's thesis]. Split: University of Split; 2020 [cited 2025 April 12] Available at: https://urn.nsk.hr/urn:nbn:hr:226:119634

D. Pokupec, "Predictability of diurnal movements of common bottlenose dolphins (tursiops truncatus) in coastal waters of Cres-Lošinj archipelago", Master's thesis, University of Split, Split, 2020. Available at: https://urn.nsk.hr/urn:nbn:hr:226:119634

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Metadata
TitlePredictability of diurnal movements of common bottlenose dolphins (tursiops truncatus) in coastal waters of Cres-Lošinj archipelago
Title (croatian)Predvidljivost dnevnih kretanja dobrih dupina (Tursiops truncatus) u obalnim vodama Cresa i Lošinja
AuthorDavid Pokupec
MentorŽeljka Trumbić (mentor)
MentorPeter Mackelworth (komentor)
Committee memberZvjezdana Popović Perković (predsjednik povjerenstva)
Committee memberŽeljka Trumbić (član povjerenstva)
Committee memberPeter Mackelworth (član povjerenstva)
GranterUniversity of Split
(University Department of Marine Studies)
Split
Defense date and country2020-09-25, Croatia
Scientific / art field,
discipline and subdiscipline		NATURAL SCIENCES
Biology
Abstract
There is a resident common bottlenose dolphin Tursiops truncatus community inhabiting the waters of the Cres-Lošinj archipelago. This thesis investigates their diurnal movements based on photo-identification data collected during a commercial dolphin watching activities in 2017. There have been 126 sightings with 309 individual common bottlenose dolphins identified. The average number of dolphins per sighting was 6. The basis of this method is that the same individual bottlenose dolphins are regularly resighted within 24 hours. Ninety individuals have been resighted at least once within a 24-hour period during the dolphin-watching season. The average relocation distance was 4.46 km, the average speed 1.76 km/h, and the average distance from land 4.43 km. There was no statistically significant difference in average relocation distance, average speed, and the average distance from the land between before noon (am) and after noon (pm) hours. Results are compared to previous studies of common bottlenose daily movements, and recommendations to possible improvements of the method are discussed.
Abstract (croatian)
U obalnim vodoma otoka Cresa i Lošinja živi rezidentna populacija dobrih dupina Tursiops truncatus. Ovaj diplomski rad istražuje njihova dnevna kretanja oslanjajući se na foto-identifikacijske podatke prikupljene za vrijeme komercijalnog promatranja dobrih dupina u 2017. godini. Dupini su viđeni ukupno 126 puta i identificirano je ukupno 309 jedinki. Prosječan broj dupina po jednom opažanju je iznosio 6. Metoda se temelji na činjenici da su isti dobri dupini viđeni više puta unutar 24 stata. 90 individualnih životinja je ponovno viđeno untar 24 sata barem jednom za vrijeme sezone promatranja u 2017. godini. Prosječna udaljenost između dvaju opažanja je iznosila 4,46 km, prosječna brzina plivanja 1,76 km/h, te prosječna udaljenost od obale na kojoj su dobri dupini viđeni 4,43 km. Nije bilo statistički značajne razlike između prosječne udaljenosti između dvaju opažanja, prosječne brzine i prosječne udaljenosti od obale između različitih doba dana, odnosno prijepodnevnih i poslijepodenvnih sati. Rezultati su uspoređeni s prethodnim istražvanjima na temu kretanja dobrih dupina i dane su preporuke za buduće poboljšanje korištene israživačke metodologije.
Keywords
Keywords (english)
Languageenglish
URN:NBNurn:nbn:hr:226:119634
Study programmeTitle: Marine Fishery
Study programme type: university
Study level: graduate
Academic / professional title: magistar/ magistra inženjer/inženjerka morskog ribarstva (magistar/ magistra inženjer/inženjerka morskog ribarstva)
Type of resourceText
File originBorn digital
Access conditionsAccess restricted to students and staff of home institution
Terms of useLicence In copyright icon
Created on2020-11-12 11:56:06