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Search: authors:"Aleksander Drgas"

3 papers found.
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Mortality of post-settlement clams Rangia cuneata (Mactridae, Bivalvia) at an early stage of invasion in the Vistula Lagoon (South Baltic) due to biotic and abiotic factors

The clam Rangia cuneata, originating from the Gulf of Mexico, was recorded in the Vistula Lagoon for the first time in the early 2010s, and quickly became the dominant component of the zoobenthic biomass. To assess mortality as a factor potentially controlling the growth of Rangia population, a year-long field experiment involving marked bivalves placed in sediment-filled trays...

The experimental set for in situ research of benthic communities in marine and freshwater ecosystems

The presented system of experimental trays permits conducting field experiments at considerable depths, all year round, and with no application of diving techniques. The deployed set can be entirely hidden under water, which is an advantage in crowded areas. The set is composed of single units, each composed of a tray filled with a substrate, four-legged bridles, and a hanging...

Species-specific effect of macrobenthic assemblages on meiobenthos and nematode community structure in shallow sandy sediments

Three functionally different macrofaunal species (the filter- and/or surface deposit-feeding polychaete Hediste diversicolor, and the suspension-feeding bivalves Mya arenaria and Cerastoderma glaucum) were introduced as single- and two-species treatments into microcosms containing sandy sediment with a natural meiofaunal community. H. diversicolor is a burrowing species building...