Published in Water Resources
Relationships between the principal characteristics of benthic communities, physical characteristics of soil, depth, current rate, and the concentration of pollutants in the soil and water of the Gorky and Cheboksary reservoirs are investigated. Numerous significant correlations are found to exist between these characteristics. It is recommended th...
Published in Estuaries
We studied changes in macrobenthic communities following the environmental clean-up of metal-polluted (cadmium, nickel, and cobalt) sediments in Foundry Cove, a small inlet within the Hudson River estuary of New York. We used a BACI-style experiment to test the hypotheses that high levels of cadmium in sediments change macrobenthic assemblages rela...
Published in Estuaries
The Nueces River is the primary source of freshwater inflow to Corpus Christi Bay and virtually the only source of freshwater inflow in the Nueces Delta. In association with reservoir development and operation within the Nueces Basin, the magnitude of freshwater inflow has been greatly reduced since 1958. Continually increasing salt concentrations ...
Published in Polar Biology
Benthic-pelagic coupling processes were studied in Adelie Cove, a small 70-m deep V-shaped bay, located on the coast of Terra Nova Bay (Ross Sea). This cove is set apart from the open sea by a 12- to 15-m deep sill. Samplings were carried out over 20 days in summer 1997/1998 in the water column, in the sediment and in material collected from the se...
Published in Marine Biology
Acetylene reduction rates were measured in lagoonal sediments, cyanobacterial mats and limestone surfaces between 1991 and 1995 at many sites, depths and seasons; all the studied substrata contained cyanobacteria. The acetylene reduction/15N2 fixation ratio was measured for the different communities and varied between 1.8 and 4.8, depending on subs...
Published in Polar Biology
Density of peracarid crustaceans (Amphipoda, Cumacea, Isopoda, Mysidacea and Tanaidacea) from epibenthic sledge samples is presented from Weddell Sea stations (Vestkapp and Halley Bay ANT XV-3). These data from both the supranet (1–1.3 m above the ground) and epinet (27–60 cm above the ground) of the epibenthic sledge are compared with samples take...
Published in Polar Biology
Ice has a significant impact on the polar and sub-polar benthos, but relationships between corresponding physical and biological processes are not yet sufficiently understood. Sea ice contributes to a vertical zonation in shallow waters, which also experience other important disturbances. Due to the length of the non-glaciated coastline, sea ice is...
Published in Polar Biology
Species of the Antarctic fish genus Trematomus occupy different trophic niches. It is not clear, however, whether small-scale variability in benthic community structure affects niche separation. Therefore abundance and biomass of fish were determined and stomach content and food composition were compared in areas affected by iceberg scours and unaf...
Published in Polar Biology
Sphaeralcyon weddellensis gen. nov. et sp. nov. is described and illustrated from three colonies collected in the eastern Weddell Sea on the Polarstern cruises ANT V/3 and ANT VI/3. The new genus is compared with three closely related alcyoniid genera, all having capitate or mushroom-shaped colonies and dimorphic polyps. Sphaeralcyon is readily dis...
Published in Estuaries
Associations between macrobenthic communities, measures of water column and sediment exposure, and measures of anthropogenic activities throughout the watershed were examined for the Chesapeake Bay, U.S. The condition of the macrobenthic communities was indicated by a multimetric benthic index of biotic integrity (B-IBI) that compares deviation of ...
