Sublethal effects of suspended sediments on estuarine fish /

The objective of this study was to determine the effects, if any, of sublethal concentrations of suspended materials on the fish in estuarine systems. Experimental sediment suspensions reproduced the concentrations frequently found during flooding and at dredging sites and dredged-material disposal sites. The suspensions were of natural sediment, obtained from the Patuxent River estuary, Maryland, or commercially available Fuller's earth. Fish were collected in the Patuxent River estuary and transported to the laboratory. The selected fish species inhabited ecologically different sections of the estuary; therefore, the overall reactions of each species were unique. Seven species of estuarine fish were exposed to Fuller's earth and natural sediment suspensions for timed periods and hematological changes were noted. The effects of various concentrations of Fuller's earth suspensions on white perch gill tissue were determined. Oxygen consumption rates of striped bass, white perch, and toadfish were measured in filtered Patuxent River water and compared to consumption rates in filtered river water suspensions of Fuller's earth or Patuxent River sediment. Fish showed signs of stress in response to suspended sediments in most of the experiments. Results indicate that sublethal concentrations of suspended solids can affect estuarine fish.

Magnetic susceptibility of fluvial sediment, Lower Fox River, northeastern Illinois, and implications for determining sediment source area /

Mode of access: Internet.

Nutrient and suspended-sediment concentrations and loads and benthic-invertebrate data for tributaries to the St. Croix River, Wisconsin and Minnesota, 1997-99 /

Includes bibliographical references (p. 43-44).

Preliminary study of sediment sources and transport in the Potomac River Basin /

At head of title: U.S. Department of the Interior, Geological Survey and Interstate Commission on the Potomac River Basin.

Effects of thinning and a wildfire on sediment production rates, channel morphology, and water quality in the upper South Platte River watershed /

"Spring 2004."

Channel Morphology and Streambed-Sediment Quality in the Muddy River, Boston and Brookline, Massachusetts, Tables to Accompany Water-Resources Investigations Report 98-4027.

Mode of access: Internet.

Relationship of suspended sediment to streamflow in the Green River Basin, Wyoming /

Bibliography: p. 14.

Dredging alternatives study Cubits Gap, Lower Mississippi River.

Cover title.

Guidelines for the design, adjustment, and operation of models for the study of river sedimentation problems /

"August 1978."

Lower Mississippi River, Tarbert Landing to East Jetty Sedimentation Study : numerical model investigation /

Cover title.

A procedure for computation of the total river sand discharge and detailed distribution bed to surface /

"November 1968."

Transport of dredged sediment placed in the nearshore zone--Currituck sand-bypass study (phase I) /

New dredge-disposal techniques may serve the dual role of aiding sand by-passing across coastal inlets, and beach nourishment, provided the dredged sediments placed seaward of the surf zone move shoreward into that zone. During the summer of 1976, 26,750 cubic meters of relatively coarse sediment was dredged from New River Inlet, North Carolina, moved down coast by a split-hull barge, and placed in a 215-meter coastal reach between the 2- and 4-meter depth contours. Bathymetric changes on the disposal piles and in the adjacent beach and nearshore area were studied for a 13-week period (August to November 1976) to determine the modification of the surrounding beach and nearshore profile, and the net transport direction of the disposal sediment. The sediment piles initially created a local shoal zone with minimum depths of 0.6 meter. Disposal sediment was coarser (Mn = 0.49 millimeter) than the native sand at the disposal site (Mn = 0.14 millimeter) and coarser than the composite mean grain size of the entire profile (Mn = 0.21 millimeter). Shoaling and breaking waves caused rapid erosion of the pile tops and a gradual coalescing of the piles to form a disposal bar located seaward (= 90 meters) of a naturally occurring surf zone bar. As the disposal bar relief was reduced, the disposal bar-associated breaker zone was restricted to low tide times or periods of high wave conditions.

East Fork Kaskaskia River (ILOK01) : TMDL and implementation plan /

"IEPA/BOW/03-007"--Cover.

Erosion and sedimentation in the Illinois River Basin : final report /

"Printed: June 1992."

Evaluation of Illinois sieved stream sediment data, 1982-1995 : staff report /

At head of cover title: Illinois Environmental Protection Agency, Bureau of Land.