Sezonalna pojavnost mladunčadi dobrog dupina (Tursiops truncatus) u Jadranskome moru

master's thesis

• Title (english): Seasonal occurrence of bottlenose dolphin (Tursiops truncatus) calves in the Adriatic Sea
• Author: Noa Kaštelan
• Mentor: Martina Đuras (mentor)
• Mentor: Petar Kružić (komentor)
• Committee member: Petar Kružić (predsjednik povjerenstva)
• Committee member: Davor Zanella (član povjerenstva)
• Committee member: Vlatka Mičetić Stanković (član povjerenstva)
• Committee member: Zoran Marčić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Science; (Department of Biology); Zagreb
• Defense date and country: 2024-02-21, Croatia
• Scientific / art field, discipline and subdiscipline: NATURAL SCIENCES; Biology

Abstract

Reprodukcija dobrih dupina u Jadranskome moru nije dovoljno istražena, tako da je nepoznata
sezona parenja i okota ove zaštićene životinjske vrste. Za potrebe ovog istraživanja korišteni su
podaci prikupljeni na Veterinarskom fakultetu Sveučilišta u Zagrebu tijekom postmortalnih
pregleda dobrih dupina pronađenih u Jadranskom moru od 1990. do 2022. godine, a koji se odnose
na uginule mladunce tjelesne duljine do 140 cm i manje od 1 godine starosti. Na temelju
analiziranih podataka procijenjena sezona okota u Jadranskom moru je ljeto, a s obzirom da
graviditet dobrog dupina traje 12 mjeseci pretpostavlja se da parenje nastupa u lipnju, srpnju i
kolovozu. Analiza lešina mladunaca pokazala je da prosječna tjelesna duljina u hrvatskom dijelu
Jadranskoga mora iznosi 126,16 cm. Prema analizi rasprostranjenosti, najveći broj nalaza
mladunaca dobrih dupina zabilježen je u sjevernom Jadranu, odnosno u istarskom akvatoriju.
Utvrđena sezonalnost parenja i okota u skladu je s podacima iz drugih umjereno toplih svjetskih
mora.

Abstract (english)

The reproduction of bottlenose dolphins in the Adriatic Sea has not been sufficiently researched,
so the mating and calving season of this protected animal species is unknown. For the purposes of
this research, data collected at the Faculty of Veterinary Medicine of the University of Zagreb
during postmortem examinations of bottlenose dolphins found in the Adriatic Sea from 1990 to
2022 were used. Data on deceased calves with a body length of up to 140 cm and less than 1 year
of age were extracted for this study. Based on the analyzed data, the estimated calving season in
the Adriatic Sea is summer, and given that the pregnancy of a bottlenose dolphin lasts 12 months,
it is assumed that mating occurs in June, July and August. The analysis of the carcasses of the
calves showed that the average body length in the Croatian part of the Adriatic Sea is 126.16 cm.
According to the analysis distribution, the largest number of bottlenose dolphins was recorded in
the northern Adriatic, i.e. in Istrian waters. The determined seasonality of mating and calving is
consistent with data from other moderately warm seas.

• Keywords: dobri dupin; mladunčad; duljina tijela; gestacija; sezona razmnožavanja
• Keywords (english): bottlenose dolphin; calves; body length; gestation; reproduction season
• Language: croatian
• URN:NBN: urn:nbn:hr:217:711238
• Study programme: Title: Ecology and Nature Preservation-University graduate programme; Study programme type: university; Study level: graduate; Academic / professional title: sveučilišni/a magistar/magistra ekologije i zaštite prirode (sveučilišni/a magistar/magistra ekologije i zaštite prirode)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2024-02-27 09:47:05