Kremenorožnate spužve (Demospongiae) u plitkim morskim staništima Parka prirode Lastovsko otočje

master's thesis

• Title (english): Sponges (Class Demospongiae) in shallow marine habitats of Lastovo Islands Nature Park
• Author: Karla Vučković
• Mentor: Tatjana Bakran-Petricioli (mentor)
• Committee member: Tatjana Bakran-Petricioli (predsjednik povjerenstva)
• Committee member: Božena Mitić (član povjerenstva)
• Committee member: Zoran Tadić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Science; (Department of Biology); Zagreb
• Defense date and country: 2010, Croatia
• Scientific / art field, discipline and subdiscipline: NATURAL SCIENCES; Biology

Abstract

Podmorje Parka prirode Lastovsko otočje još uvijek je slabo poznato. Preliminarna istraživanja pokazuju da obiluje raznolikim staništima koja naseljavaju mnoge životne zajednice. U cilju boljeg poznavanja faune spužvi u rujnu i listopadu 2007. godine, te krajem lipnja 2008. ronjenjem pomoću autonomnih ronilačkih aparata sakupljeni su uzorci na 14 postaja unutar Parka. Zabilježena je ukupno 71 vrsta spužvi (69 vrsta iz razreda Demospongiae, te po jedna vrsta iz razreda Hexactinellida i Calcarea) unutar 6 bentoskih zajednica u plitkom moru: biocenoze infralitoralnih algi, biocenoze naselja morske cvjetnice Posidonia oceanica, biocenoze zamuljenih pijesaka zaštićenih obala, koraligenske biocenoze, biocenoze polutamnih špilja, te biocenoze potpuno tamnih špilja i prolaza. Na nekim postajama prevladavala je jedna zajednica, a na nekima dvije ili više. Najviše vrsta spužvi – više od 30 - zabilježeno je unutar zajednice polutamnih špilja, a najmanje na postaji na kojoj se izmjenjuju zajednica zamuljenih pijesaka zaštićenih obala i degradirana zajednica posidonije. Vrsta Crambe crambe je zabilježena na najviše postaja (12 od 14). Vrsta Cliona celata zabilježena je na 11 postaja, dok su Cliona schmidti, Agelas oroides, Petrosia ficiformis i Spirastrella cunctatrix zabilježene na 10 postaja. Postaje su statistički uspoređene na temelju prisutnosti i odsutnosti vrsta spužvi po postaji. Rezultati su pokazali da se postaje grupiraju ovisno o tome koja biocenoza na njima prevladava.

Abstract (english)

Marine life of the Lastovo Islands Nature Park is poorly known. Preliminary investigations point to its great habitat diversity with various living communities. During September and October of 2007 and June of 2008, sponge samples were collected on 14 stations inside the Park, using autonomous diving apparatus. Total of 71 species of sponges were noted (69 species from Class Demospongiae, one from Class Hexactinellida and one from Class Calcarea), living inside 6 shallow benthic communities: the biocenosis of infralittoral algae, the biocenosis of seagrass Posidonia oceanica, the biocenosis of muddy sands of protected coasts, the coralligenous biocenosis, the biocenosis semi-dark caves and the biocenosis of caves and passages in total darkness. On some stations only one type of community was recorded and on some stations two or more types were recorded. The biggest number of sponge species – more then 30 – were recorded in community of semi-dark caves and the smallest number of sponge species was recorded on the station on which community of muddy sands of protected coasts came together with degraded community of Posidonia oceanica meadow. Species Crambe crambe was recorded on the most of the stations (12 out of 14). Species Cliona celata was recorded on 11 stations, while Cliona schmidti, Agelas oroides, Petrosia ficiformis and Spirastrella cunctatrix were recorded on 10 stations. Stations were statistically compared based on the presence and absence of sponge species on each station. Results showed grouping of stations depending on the prevailing biocenosis/biocenoses on them.

• Keywords: spužve; Demospongiae; bentoske zajednice plitkog mora; Lastovsko otočje
• Keywords (english): sponges; Demospongiae; shallow marine benthic habitats; Lastovo Islands
• Language: croatian
• URN:NBN: urn:nbn:hr:217:150796
• Study programme: Title: Biology; specializations in: Ecology; Course: Ecology; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra biologije (magistar/magistra biologije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2018-04-04 08:43:28