prikaz prve stranice dokumenta Histološka i stereološka analiza gonada mužjaka psa mekuša Mustelus punctulatus (Risso, 1826) u sjevernom Jadranu
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master's thesis
Histološka i stereološka analiza gonada mužjaka psa mekuša Mustelus punctulatus (Risso, 1826) u sjevernom Jadranu
Zagreb: University of Zagreb, Faculty of Science, 2012. urn:nbn:hr:217:872469
Kralj, Mateja
University of Zagreb
Faculty of Science
Department of Biology

Institutional repository: Repository of the Faculty of Science

Cite this document

Kralj, M. (2012). Histološka i stereološka analiza gonada mužjaka psa mekuša Mustelus punctulatus (Risso, 1826) u sjevernom Jadranu (Master's thesis). Zagreb: University of Zagreb, Faculty of Science. Retrieved from https://urn.nsk.hr/urn:nbn:hr:217:872469

Kralj, Mateja. "Histološka i stereološka analiza gonada mužjaka psa mekuša Mustelus punctulatus (Risso, 1826) u sjevernom Jadranu." Master's thesis, University of Zagreb, Faculty of Science, 2012. https://urn.nsk.hr/urn:nbn:hr:217:872469

Kralj, Mateja. "Histološka i stereološka analiza gonada mužjaka psa mekuša Mustelus punctulatus (Risso, 1826) u sjevernom Jadranu." Master's thesis, University of Zagreb, Faculty of Science, 2012. https://urn.nsk.hr/urn:nbn:hr:217:872469

Kralj, M. (2012). 'Histološka i stereološka analiza gonada mužjaka psa mekuša Mustelus punctulatus (Risso, 1826) u sjevernom Jadranu', Master's thesis, University of Zagreb, Faculty of Science, accessed 24 November 2024, https://urn.nsk.hr/urn:nbn:hr:217:872469

Kralj M. Histološka i stereološka analiza gonada mužjaka psa mekuša Mustelus punctulatus (Risso, 1826) u sjevernom Jadranu [Master's thesis]. Zagreb: University of Zagreb, Faculty of Science; 2012 [cited 2024 November 24] Available at: https://urn.nsk.hr/urn:nbn:hr:217:872469

M. Kralj, "Histološka i stereološka analiza gonada mužjaka psa mekuša Mustelus punctulatus (Risso, 1826) u sjevernom Jadranu", Master's thesis, University of Zagreb, Faculty of Science, Zagreb, 2012. Available at: https://urn.nsk.hr/urn:nbn:hr:217:872469

Metadata
TitleHistološka i stereološka analiza gonada mužjaka psa mekuša Mustelus punctulatus (Risso, 1826) u sjevernom Jadranu
Title (english)Histological and stereological analysis of male gonads in blackspotted smoothhound Mustelus punctulatus (Risso, 1826) in the northern Adriatic Sea
AuthorMateja Kralj
MentorGordana Lacković-Venturin (mentor)
Committee memberGordana Lacković-Venturin (predsjednik povjerenstva)
Committee memberDubravka Hranilović (član povjerenstva)
Committee memberSven Jelaska (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Science
(Department of Biology)
Zagreb
Defense date and country2012-02-06, Croatia
Scientific / art field,
discipline and subdiscipline		NATURAL SCIENCES
Biology
Abstract
Pas mekuš, Mustelus punctulatus (Risso, 1826) je komercijalna vrsta pridnenog morskog psa, potencijalno ugrožena zbog izlovljavanja u sjevernom Jadranu. Analizirano je 95 muških jedinki, prikupljenih na pridnenim koćama u sjevernom Jadranu, tijekom veljače 2005. - srpnja 2007. godine. Ukupna dužina tijela (TBL) prikupljenih životinja bila je između 44,6 - 126,5 cm, sa srednjom vrijednošću 76,4 ± 21,4 cm. Usporedbom TBL i mase životinja dobivena je pozitivna Spearmanova korelacija (rs = 0,985, p < 0,05), kao i usporedbom TBL i mase gonada (rs = 0,852, p < 0,05). Najmanja životinja kod koje su utvrđeni počeci spermatogeneze, imala je TBL 67,4 cm, dok je najmanji spolno zreli mužjak imao TBL 79,8 cm. Dobiveni rezultati ukazuju da mužjaci spolnu zrelost dostižu kod dužina tijela > 80 cm. Gonadosomatki indeks i prisutnost najrazvijenijih stadija spermatogeneze u testisima ukazuju na rast gonada tijekom jeseni, parenje u zimskim i proljetnim mjesecima, te fazu mirovanja tijekom ljeta.
Abstract (english)
Blackspotted smoothhound, Mustelus punctulatus (Risso, 1826) is a commercial species, potentially endangered, as a result of excessive fishing in the northern Adriatic sea. From February 2005 until July 2007, 95 male sharks were collected with bottom trawlers on the territory of the northern Adriatic Sea. Total body length (TBL) of collected animals was between 44,6 - 126,5 cm, with the medium value 76,4 ± 21,4 cm. Comparison between TBL and animal body mass gave a positive Spearman's correlation (rs = 0,985, p < 0,05), as well as the comparison between TBL and gonad mass (rs = 0,852, p < 0,05). The smallest animal with onset of spermatogenesis, has had TBL 67, 4 cm, while smallest sexualy maturated mail had TBL 79, 8 cm. Gonadosomatic index and the presence of most developed spermatogenetic stages in testes suggest a gonad growth during the autumn, mating in winter and spring months, and the inactive phase during the summer.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:217:872469
Study programmeTitle: Experimental Biology
Study programme type: university
Study level: graduate
Academic / professional title: magistar/magistra eksperimentalne biologije (magistar/magistra eksperimentalne biologije)
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 09:11:11