Smeđa alga Fucus virsoides J. Agardh kao bioindikator

undergraduate thesis

• Title (english): The brown alga Fucus virsoides J. Agardh like a bioindicator
• Author: Boris Božić
• Mentor: Tatjana Bakran-Petricioli (mentor)
• 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

Jadranski bračić je smeđa alga iz roda Fucus stručnog naziva Fucus virsoides J. Agardh. Pojavljuje se u zoni plime i oseke, dakle mediolitoralu. Jadranski bračić je isključivo vezan za Jadransko more. Danas toj jadranskoj endemskoj vrsti areal seže od sjevernog Jadrana na sjeveru pa na istočnim obalama do Boke Kotorske na jugu, a na zapadnim apeninskim obalama do Ancone. Najčešći i najbrojniji je u sjevernom Jadranu. Dugogodišnja je vrsta i živi u moru na mjestima koja nisu izložena direktnom ljudskom zagađenju. Unatoč tome što se o jadranskom bračiću malo zna, ova vrsta ima određene značajke koje bi ju mogle činiti dobrim bioindikatorom. Prema svojim bioakumulacijskim karakteristikama pripada skupini akumulacijskih indikatora. Neka istraživanja pokazala su da jadranski bračić akumulira izotope joda i teških metala (Fe, Zn, Cu, Cd, Ni, Pb, Cr, As). No kako su ta istraživanja malobrojna i rađena bez predznanja o vrsti, njihovi rezultati se teško mogu interpretirati kao stvarna slika zagađenja okoliša. Da bi to postigli potrebna su još dodatna istraživanja bioindikatorskih mogućnosti jadranskog bračića. U Jadranskom moru postoje i druge vrste smeđih algi, kao što su neke vrste roda Cystoseira (red Fucales) koje bi također mogle biti dobri bioindikatori.

Abstract (english)

Fucus virsoides J. Agardh is a brown alga of the genus Fucus. It lives in the intertidal zone. Fucus virsoides is exclusively linked to the Adriatic Sea. Today, the areal of this endemic species extends from the North Adriatic on the east coast to the Bay of Kotor and on the western shores to Ancona. The species is the most common and the most abundant in the northern Adriatic. Fucus virsoides is a perennial species, living in the areas which are not exposed to direct human pollution. Despite the fact that a lot of information about the biology of Fucus virsoides is missing, this species has certain characteristics that make it a potential bioindicator. According to its bioaccumulation capabilities it belongs to a group of accumulation indicators. Some studies have shown that Fucus virsoides accumulates isotopes of iodine and heavy metals (Fe, Zn, Cu, Cd, Ni, Pb, Cr, As). However, since there are few of these studies and they were undertaken without prior knowledge of the species biology, their results could not be interpreted as a real picture of environmental pollution. In order to achieve that additional research of bioindicator capabilities of Fucus virsoides are necessary. In the Adriatic Sea there are other species such as brown algae from the genus Cystoseira (Fucales order) that also have a potential bioindicator capacity.

• Keywords: smeđa alga; jadranski bračić; bioindikator
• Keywords (english): brown alga; Fucus virsoides; bioindicator
• Language: croatian
• URN:NBN: urn:nbn:hr:217:687881
• Study programme: Title: Environmental Sciences; Study programme type: university; Study level: undergraduate; Academic / professional title: sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) struke znanosti o okolišu (sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) struke znanosti o okolišu)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2018-03-22 09:37:46