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master's thesis
Utjecaj izgubljenog ribarskog alata na bioraznolikost ranih razvojnuh stadija morskih organizama
Split: University of Split, 2018. urn:nbn:hr:226:390306
Lakoš, Toni
University of Split
University Department of Marine Studies

Institutional repository: Repository of University Department of Marine Studies

Cite this document

Lakoš, T. (2018). Utjecaj izgubljenog ribarskog alata na bioraznolikost ranih razvojnuh stadija morskih organizama (Master's thesis). Split: University of Split. Retrieved from https://urn.nsk.hr/urn:nbn:hr:226:390306

Lakoš, Toni. "Utjecaj izgubljenog ribarskog alata na bioraznolikost ranih razvojnuh stadija morskih organizama." Master's thesis, University of Split, 2018. https://urn.nsk.hr/urn:nbn:hr:226:390306

Lakoš, Toni. "Utjecaj izgubljenog ribarskog alata na bioraznolikost ranih razvojnuh stadija morskih organizama." Master's thesis, University of Split, 2018. https://urn.nsk.hr/urn:nbn:hr:226:390306

Lakoš, T. (2018). 'Utjecaj izgubljenog ribarskog alata na bioraznolikost ranih razvojnuh stadija morskih organizama', Master's thesis, University of Split, accessed 04 July 2024, https://urn.nsk.hr/urn:nbn:hr:226:390306

Lakoš T. Utjecaj izgubljenog ribarskog alata na bioraznolikost ranih razvojnuh stadija morskih organizama [Master's thesis]. Split: University of Split; 2018 [cited 2024 July 04] Available at: https://urn.nsk.hr/urn:nbn:hr:226:390306

T. Lakoš, "Utjecaj izgubljenog ribarskog alata na bioraznolikost ranih razvojnuh stadija morskih organizama", Master's thesis, University of Split, Split, 2018. Available at: https://urn.nsk.hr/urn:nbn:hr:226:390306

Metadata
TitleUtjecaj izgubljenog ribarskog alata na bioraznolikost ranih razvojnuh stadija morskih organizama
Title (english)The effects of lost fishing gear on the biodiversity of the early development stages of sea organisms
AuthorToni Lakoš
MentorPero Tutman (mentor)
Committee memberJure Brčić (predsjednik povjerenstva)
Committee memberFrane Škeljo (član povjerenstva)
Committee memberSvjetlana Krstulović Šifner (član povjerenstva)
GranterUniversity of Split
(University Department of Marine Studies)
Split
Defense date and country2018-09-27, Croatia
Scientific / art field,
discipline and subdiscipline		BIOTECHNICAL SCIENCES
Agronomy
Abstract
U ovom radu analiziran je utjecaj izgubljene ribolovne mreže gavunare na bioraznolikost morskih organizama i njihovih razvojnih stadija (engl. ghost fishing). Praćeno je i pomicanje mreže uzrokovano različitim vremenskim i hidrografskim promjenama te utjecaj stupnja obraštaja na bioraznolikost morskih organizama. Istraživanje je provedeno u razdoblju od 24. studenog 2017. godine do 28. siječnja 2018. godine, tijekom kojeg je izvršeno 10 zarona autonomnim ronjenjem. Korištena mreža gavunara je duga 65 metara, a visoka 5 metara, dok joj je promjer oka 10 milimetara i debljina konca 210/2. Postavljena je na dubini od 15 do 17 metara. Mreža je utjecala na 479 organizama. Od 229 jedinki koje su pronađene zapletene u mreži, 225 (98%) su bile ribe (Pisces), 3 (1,3%) bodljikaša (Echinodermata), te 1 (0,7%) rak (Crustacea). Zabilježena su 194 organizma koja su koristila mrežu kao stanište i mjesto za hranjenje, od kojih su 40% bili mekušci (Mollusca), 77 jedinki, 39% bodljikaši (Echinodermata) sa 75 jedinki, te 21% riba (Pisces) odnosno 42 jedinke. Među 229 zapletenih organizama, 2 su bila u mlađem razvojnom stadiju. Dvije zabilježene juvenilne ribe su vrste pauk bijelac (T. draco) i lokarda (S. japonicus). Među 194 organizma koji su koristili mrežu kao stanište i mjesto za hranjenje, 24 su (12%) juvenilna primjerka. Za 92% mlađih razvojnih stadija kojima je mreža poslužila kao stanište ili mjesto za hranjenje su bile ribe (Pisces), točnije 22 jedinke, dok su ostalih 8% (2 jedinke) bili puževi (Gastropoda). Pronađeno je i 56 nakupina jajašaca.
Abstract (english)
This paper analyzes the impact of the lost gill net on the biodiversity of marine organisms and their developmental stages. The impact of different weather changes on the nets movements, as well as the effect of the degree of cultivation on marine organisms was monitored. The research was conducted in the period from 24.11.2017. until 28.01.2018. during which 10 dives were carried out with scuba gear. Used gill net was 65 meters long and 5 meters high, with a 10 millimeter diameter of the eye and 210/2 thread thickness. The net was left at depths of 15 to 17 meters, and affected 479 organisms. Out of 229 individuals found in the net, 225 (98%) were fish (Pisces), 3 (1.3%) echinoderms (Echinodermata) and one (0.7%) crustacean (Crustacea). 194 organisms used the net as a habitat and a feeding site, 40% of which were molluscs (Mollusca), with 77 individuals, 39% echinoderms with 75 individuals, and 21% fish (Pisces) with 42 individuals. Out of 229 caught organisms, 2 were in the younger stage of development. Two noted juvenile fishes are of the species of Trachinus draco and Scomber japonicus. Among the 194 organisms that used the net as a habitat and a feeding site, 24 (12%) were juvenile specimens. 92% of the younger developmental stages that used the net as a habitat or a place for feeding were fish (namely, 22 individuals), while the other 8% (2 individuals) were snails (Gastropoda). 56 egg clusters were also found.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:226:390306
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
Public notePredmet: Ekologija ranih razvojnih stadija riba
Created on2018-11-30 12:50:52