Biološke i ekološke značajke invazivne vrste Corbicula fluminea (Mollusca, Bivalvia)

Ivčević, Viki (2011) Biološke i ekološke značajke invazivne vrste Corbicula fluminea (Mollusca, Bivalvia). Bachelor's thesis, Faculty of Science > Department of Biology.

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Abstract

Bivalves are considered as a key species in aquatic ecosystems, being capable of controlling and transforming their structure and functioning through their filtering activity. Therefore, finding of alien bivalves often entails severe consequences at multiple levels in the newly occupied aquatic environments. These include dramatic changes in the diversity and abundance of benthic and plankton communities, creation of new habitats, alterations in the rates of ecosystem processes or interferences with human infrastructures and water uses, frequently involving a large economic cost. Native freshwater bivalves are a highly threatened group which has undergone a global decline in the last decades. Corbicula fluminea has predispositions to be a successful competitor of indigenous species in Europe and also probably in other continents, especially shellfish from the families Unionidae and Sphaeriidae. These qualities include the ability to move and / or reduce the availability of habitat for the shellfish, and limiting the availability of planktonic food due to the increased possibility of filtering on the basis of high biomass. For all the foregoing C. fluminea is a potential threat to native habitats and communities, mainly endangered bivalve family Unionidae and Sphaeriidae.

Item Type: Thesis (Bachelor's thesis)
Supervisor: Lajtner, Jasna
Date: 2011
Number of Pages: 9
Subjects: NATURAL SCIENCES > Biology
Divisions: Faculty of Science > Department of Biology
Depositing User: Silvana Šehić
Date Deposited: 28 Oct 2014 12:08
Last Modified: 28 Oct 2014 12:08
URI: http://digre.pmf.unizg.hr/id/eprint/3204

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