Ugroženost morskih cvjetnica u Jadranskom moru

undergraduate thesis

• Title (english): Endangerment of seagrasses in Adriatic sea
• Author: Martina Jolić
• Mentor: Petar Kružić (mentor)
• Granter: University of Zagreb; Faculty of Science; (Department of Biology); Zagreb
• Defense date and country: 2014, Croatia
• Scientific / art field, discipline and subdiscipline: NATURAL SCIENCES; Biology

Abstract

Manjak brige oko sudbine cvjetnica može se objasniti manjkom izravne komercijalne vrijednosti (djelomično su se koristile kao hrana za ljude i životinje, te kao gnojivo). No njihova važnost je prvenstveno indirektna. Njihova zaštita je bitna zbog sposobnosti smanjivanja djelovanja valova i morskih struja na obalu, stabilizacije podloge, taloženja i konsolidacije sedimenata kojim ujedno i lokalno pročišćava vodu, staništa mnogih komercijalno važnih životinjskih vrsta, te općenito kao centara bioraznolikosti. Njihovim gubitkom izgubili bi važna mrjestilišta i rastilišta vrsta, što bi umanjilo njihovo obnavljanje. Livade posidonije su poput ostalih vrsta osjetljive zbog svog sporog rasta i spore stope obnavljanja. Na gubitak staništa veliki utjecaj ima ljudska aktivnost u vidu kočarenja, marikulture, izgradnje u obalnom području, urbanih i industrijskih otpadnih voda, te uvođenje invazivnih vrsta koji uzrokuju pojačanu eutrofikaciju, zakopavanje biljaka sedimentom, te fizički i fiziološki stres.

Abstract (english)

Lack of concern about the faith of seagrasses can be explained by the deficit of their commercial value (they can be partially used as food for people or animals and as fertilizer), but their real value is primarily indirect. Protection of seagrass meadows is essential because of their ability to manage impact of waves and sea currents on the shore, stabilization of the sea beds, sedimentation i consolidation of sedimentation trough which it locally purifies water, as habitats of many commercially important animal species, and as general centres of biodiversity. With their loss we would lose a great deal of important hatcheries and nurseries for many different species which would lead to lesser amount of their renewal. Seagrass meadows are very sensitive because of their slow growth and regeneration rates. On the loss of their habitats very big influence has human activity in the form of trawling, mariculture, sea shore construction, urban and industrial wastewaters, as well as introduction of invasive species which all cause enhanced eutrophication, burial of the plants with sediment, and physical and physiological stress.

• Keywords: ugroženost morskih cvjetnica
• Keywords (english): endangerment of seagrasses
• Language: croatian
• URN:NBN: urn:nbn:hr:217:273265
• Study programme: Title: Ecology; Study programme type: university; Study level: undergraduate; Academic / professional title: sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) biologije (sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) biologije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2017-12-08 09:59:32