Proceedings of the Second International Sediment/Freshwater Symposium held in Kingston, Ontario, June 15-18, 1981

Inhalt

One: Sediment Dynamics and Material Distributions in Fluvial and Lacustrine Environments.- (1) Bottom dynamics in lakes.- (2) Estimation of fluxes to the ocean from mega-tidal estuaries under moderate climates and the problems they present.- (3) Entrainment, deposition, and transport of fine-grained sediments in lakes.- (4) Physical and geochemical characteristics of suspended solids, Wilton Creek, Ontario.- (5) Sedimentation in fluvial and lacustrine environments.- (6) Comparison of sediment energy-texture relationships in marine and lacustrine environments.- Two: Land Use Effects on Sediment Yields and Quality.- (7) La géochimie du Rhin et du Rhône et l'impact humain.- (8) Land use effects on sediment yield and quality.- (9) Algal-availability of particulate phosphorus from diffuse and point sources in the lower Great Lakes basin.- Three: Contaminant Accumulation in Sediments from Point and Non-Point Sources.- (10) Whole-lake lead burdens in sediments of lakes in southern Ontario, Canada.- (11) Historical changes in anthropogenic lead fallout in southern Ontario, Canada.- (12) Basic concepts and associated statistical methodology in the geochemical study of lake sediments.- (13) Vanadium as a tracer of oil pollution in the sediments of Kuwait.- (14) Zinc in water and sediments of two Finnish lakes.- Four: Sediments and Associated Parameters in Models, Mass Balance and Loadings.- (15) Carbon flow across the sediment-water interface in Lake Vechten, The Netherlands.- (16) Loading concentration models for phosphate in shallow lakes.- (17) Model for instream regulation of radioisotopes and heavy metals in riverine waters subjected to a uranium mill discharge.- (18) Diurnal variation in the oxygen uptake of river sediments in vitro by use of continuous flow-through systems.- (19) Modelling the influence of bioturbation on the vertical distribution of sedimentary phosphorus in L. Esrom.- (20) Experimental measurement of sediment nitrification and denitrification in Hamilton Harbour, Canada.- (21) Mass balance models of phosphorus in sediments and water.- (22) A dynamic phosphate budget model for a eutrophic lake.- (23) Spatial heterogeneity in whole lake sediments - towards a loading estimate.- (24) An analysis of total phosphorus transport in river systems.- Five: Sediments as Concentrators of Natural and Anthropogenic, Organic and Inorganic Materials.- (25) Partitioning of phosphorus between particles and water in a river outflow.- (26) Microbial metabolism in surface sediments and its role in the immobilization of phosphorus in oligotrophic lake sediments.- (27) Accumulative phases for heavy metals in limnic sediments.- (28) Hydrocarbon accumulation in freshwater sediments of an urban catchment.- (29) Phosphate adsorption kinetics of resuspended sediments in a shallow lake, Neusiedlersee, Austria.- (30) Uptake of trace metals by sediments and suspended particulates: a review.- (31) Dynamics and mechanisms of arsenite oxidation by freshwater lake sediments.- (32) The manganese cycle in Lac Léman, Switzerland: the role of Metallogenium.- (33) Particle size distribution and chemical parameters of the sediments of a shallow turbid impoundment.- (34) Distribution and concentrations of naturally-occurring radionuclides in sediments in a uranium mining area of northern Saskatchewan, Canada.- (35) Interaction between interstitial water and sediment in two cores of Lac Léman, Switzerland.- (36) The rates of sediment-water exchange of oxygen and sediment bioturbation in Lough Neagh, Northern Ireland.- (37) Forms of iron in the oxygenated waters of Esthwaite Water, U.K..- (38) Vertical stratification in sediments from a young oligotrophic South African impoundment: implications in phosphorus cycling.- Six: Release Mechanisms from Bed and Suspended Sediments, and Transfer to Biosystem.- (39) Flux of reduced chemical constituents (Fe2+, Mn2+, NH4+ and CH4) and sediment oxygen demand in Lake Erie.- (40) Different patterns of phosphorus release from lake sediments in laboratory experiments.- (41) Benthic phosphorus regeneration in the Potomac River Estuary.- (42) The influence of within-stream disturbance on dissolved nutrient levels during spates.- (43) Transport of iron and manganese in relation to the shapes of their concentration-depth profiles.- (44) Dissolved and suspended mercury species in the Wabigoon River (Ontario, Canada): seasonal and regional variations.- (45) Temperature dependence of sediment-water exchange in Lake Grevelingen, SW Netherlands.- (46) Available phosphorus in lake sediments in The Netherlands.- (47) Epilimnetic nutrient loading by metalimnetic erosion and resultant algal responses in Lake Waramaug, Connecticut.- (48) The influence of groundwater-movement on the phosphorus release from sediments, as measured in a continuous flow system.- (49) Mechanisms for release of sediment-bound phosphate to water and the effects of agricultural land management on fluvial transport of particulate and dissolved phosphate.- (50) Benthic community metabolism of three Austrian pre-alpine lakes of different trophic conditions and its oxygen dependency.- Seven: Effects of Manipulation Techniques on Release Mechanisms.- (51) Acidified lakes: sediment treatment with sodium carbonate - a remedy?.- (52) Lake Trehörningen restoration project. Changes in water quality after sediment dredging.- (53) Studies into the effects of cadmium and low pH upon methane production.- (54) On the summer peak of nutrient concentrations in lake water.- Eight: Sedimentation Rates, Dating Techniques, Spatial and Temporal Consistency and Sediment Reworking.- (55) Lead-210 dating of sediments compared with accumulation rates estimated by natural markers and measured with sediment traps.- (56) Lake sediments as recorders of geomagnetic field variations - applications to dating post-Glacial sediments.- (57) Deepwater sediments and trophic conditions in Florida lakes.- (58) Sedimentation rates in a Swiss-Italian lake measured with sediment traps.- (59) Stratigraphie and dynamic effects of sediment reworking by Great Lakes zoobenthos.- (60) Effects of sedimentation on the storage capacity of the High Aswan Dam reservoir.- (61) Some experimental studies on the use of trace elements as a paleoenvironmental indicator.- (62) Climatic and anthrophogenic effects on the sedimentation and geochemistry of Lakes Bourget, Annecy and Léman.- (63) Availability of dissolved oxygen in interstitial waters of a sandy creek.- Nine: Methods, Techniques and Equipment.- (64) In situ sampling of interstitial water from lake sediments.- (65) Forms of phosphorus in particulate matter from the Hollands Diep/ Haringvliet, The Netherlands.- (66) Differential extraction of sediment phosphates with NTA solutions.- (67) Standardization of methods of analysis for heavy metals in sediments.- (68) The fractionation of iron-phosphorus compounds in sediments studied by Mössbauer spectroscopy.- Author index.