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Lists as embedded structures and the prosody of list construction as an interactional resource
(2003)
Faust and the Germans
(2003)
Arundati Roy's the God of small things : identity construction between indianness and britishness
(2003)
Defining britishhness from the margins : Peter Weir's gallipoli and hugh hudson's chariots of fire
(2003)
Multiculturalism and beyond : perspektives and new publicatons on the culture debate in the USA
(2003)
Settlement on suitable substrata under favourable environmental conditions is an important factor for a successful recruitment of adult populations of Dreissena polymorpha. Therefore, the pattern of settlement of zebra mussel (Dreissena polymorpha) larvae at different depths was studied in Lake Constance. Maximum densities of larvae and newly settled juvenile mussels were observed at 4m depth, while only single settlement episodes were recorded at greater depths (15 m and 30 m). Temperature fluctuation was used as a surrogate parameter for internal seiches. Biotic and abiotic parameters were subjected to a principal component analysis (PCA). The tight coupling of the internal seiches, larval abundance and settlement at 4-m depth vs. the lack of coupling of the latter two variables at greater depths indicated that water currents transported settling larvae to the substrata at greater depth. Our data suggest that physical factors, such as boundary mixing and internal seiches, should be considered as sources of variability in settlement.