Universität zu Köln

Viergutz, Carsten, Linn, Catherine and Weitere, Markus (2012). Intra- and interannual variability surpasses direct temperature effects on the clearance rates of the invasive clam Corbicula fluminea. Mar. Biol., 159 (11). S. 2379 - 2388. HEIDELBERG: SPRINGER HEIDELBERG. ISSN 1432-1793

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Abstract

We measured the clearance rates of the filter-feeding bivalve Corbicula fluminea over a period of 2 years. Strong seasonal variations, such as a 50-fold increase from February to July, were observed. These variations were only poorly linked to temperature, as they could be found at both the ambient field temperature and a constant temperature of 15A degrees C. Instead, peaks in the filtration activity corresponded to the spawning activity. Additionally, a strong interannual variability with much lower clearance rates in 2009 than in 2008 was identified. The low clearance rates were linked to a preceding period of low winter temperatures close to the lethal temperature of 2A degrees C and the associated reduced reproduction rates. Our findings demonstrate that other factors besides temperature and body mass can strongly affect clearance rates. These results should be considered when predicting the effects of changing temperatures on the ecosystem impact of filter-feeding bivalves.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Viergutz, Carsten UNSPECIFIED UNSPECIFIED UNSPECIFIED Linn, Catherine UNSPECIFIED UNSPECIFIED UNSPECIFIED Weitere, Markus UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-479934
DOI:	10.1007/s00227-012-1902-0
Journal or Publication Title:	Mar. Biol.
Volume:	159
Number:	11
Page Range:	S. 2379 - 2388
Date:	2012
Publisher:	SPRINGER HEIDELBERG
Place of Publication:	HEIDELBERG
ISSN:	1432-1793
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language STRIATINUM LAMARCK BIVALVIA; FRESH-WATER CLAM; FILTRATION-RATES; ASIATIC CLAM; RIVER; POPULATION; DYNAMICS; MUSSEL; MULLER; SIZE Multiple languages Marine & Freshwater Biology Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/47993