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Meiobenthic Organisms as Indicators of Mixing Processes in the Baltic Surface Sediments *
Author(s) -
Pempkowiak Janusz,
Kozuch Joanna,
Szymelfenig Maria
Publication year - 1996
Publication title -
marine ecology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.668
H-Index - 58
eISSN - 1439-0485
pISSN - 0173-9565
DOI - 10.1111/j.1439-0485.1996.tb00498.x
Subject(s) - meiobenthos , sediment , oceanography , baltic sea , sedimentation , mixing (physics) , geology , environmental science , paleontology , physics , quantum mechanics
. Two sediment cores were collected in the southern Baltic Sea and sliced into 1.0cm‐thick layers. Sediments of each layer were analysed for activities of 210 Pb, 137 Cs, 134 Cs and for the density of meiobenthic organisms (meiofauna). Zones with the rapid mixing occur in the uppermost layers (0–3 cm) of the cores based on I34 Cs profiles. The extent and density of meiofauna confirmed the rapid mixing and revealed layers with slow mixing (4–8 cm). Sedimentation rates were derived from 210 Pb profiles below the mixing zones (1.21 and 1.72 mm a‐ I ) and were confumed by 137 Cs distribution. Of twenty‐one major meiofauna taxa commonly found in the Baltic sediments, three were present in the cores.