Download or read book Sediment Biogeochemistry Across the Patuxent River Estuarine Gradient written by Jennifer A. O'Keefe and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sediment water column Flux of Nutrients and Oxygen in the Tidal Patuxent River and Estuary Maryland written by and published by . This book was released on 1987 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sediment water column Flux of Nutrients and Oxygen in the Tidal Patuxent River and Estuary Maryland written by and published by . This book was released on 1987 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sublethal Effects of Suspended Sediments on Estuarine Fish written by J. M. O'Connor and published by . This book was released on 1977 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Estimates of Sediment Denitrification and Its Influence on the Fate of Nitrogen in Chesapeake Bay written by Robert Reece Twilley and published by . This book was released on 1987 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Potential for Denitrification of Ground Water by Coastal Plain Sediments in the Patuxent River Basin Maryland written by L. Joseph Bachman and published by . This book was released on 2000 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Estuarine variability written by Douglas A. Wolfe and published by Elsevier. This book was released on 2013-10-22 with total page 524 pages. Available in PDF, EPUB and Kindle. Book excerpt: Approx.509 pages
Download or read book Estuarine Processes written by Martin Wiley and published by Academic Press. This book was released on 2014-05-10 with total page 447 pages. Available in PDF, EPUB and Kindle. Book excerpt: Estuarine Processes, Volume II: Circulation, Sediments, and Transfer of Material in the Estuary provides information pertinent to estuarine processes and focuses on dynamic interactions at several levels of organization. This book describes the effects of physical alterations on estuarial hydraulics, dissolved and particulate material support, and on aquatic biota. Organized into six parts encompassing 27 chapters, this volume begins with an overview of the historic changes in salinity balance in the estuarial zone of the Sacramento-San Joaquin Delta. This text then reviews the effect of enlargement of artificial waterway of the Chesapeake and Delaware Canal, which has resulted in substantial alterations of the physical hydrography, biotic populations and chemical environment of the canal and its approaches. Other chapters consider the elements in a mathematical model for estuarial sediment transport. This book discusses as well sediment transport rates in coastal waters. The final chapter deals with accurate estimates of fish abundance for models of many estuarine processes. This book is a valuable resource for ecologists, environmentalists, and scientists.
Download or read book Estuarine Community Dynamics Benthic Program Patuxent River Estuary Preliminary Data Report written by Chesapeake Biological Laboratory and published by . This book was released on 1981 with total page 63 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Lethal Effects of Suspended Sediments on Estuarine Fish written by J. M. O'Connor and published by . This book was released on 1976 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt: A 3-year laboratory study identified certain estuarine fish sensitive to the effects of particle size and concentration of (a) suspended mineral solids similar in size to sediments likely to be found in estuarine systems in concentrations typically found during flooding, dredging, and disposal of dredged material, and (b) natural sediments in identical experiments. Significant mortality of estuarine fish was demonstrated at these suspended mineral solid concentrations. Estuarine fish were classified, using static bioassays as: Tolerant (24-hour LC10 greater than or equal to 10 grams per liter), sensitive (10 grams per liter greater than 24-hour LC 10 greater than 1.0 gram per liter), or highly sensitive (24-hour LC10 greater than or equal to 1.0 gram per liter) to fuller's earth suspensions. Generally, bottom-dwelling fish species were most tolerant to suspended solids; filter feeders were most sensitive. Early life stages were more sensitive to suspended solids than adults; filter feeders were most sensitive. Bioassays with natural sediments indicated that suspensions of natural muds affected fish in the same way as fuller's earth, but higher concentrations of natural material were required to produce the same level of response. The effect of finely divided solids on fish was dependent on concentration, particle-size distribution, and angularity of the suspended particles. The cause of death was the same in all experiments--anoxia. This study provides base-line information for preproject decisionmaking based upon the anticipated concentration of suspended sediments at the project site and the effect of various lengths of exposure on estuarine fish of different life-history stages and habitat preference. (Author).
Download or read book Hydrogeologic Setting and Potential for Denitrification in Ground Water Coastal Plain of Southern Maryland written by David E. Krantz and published by . This book was released on 2000 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nutrient and Sediment Concentrations Trends and Loads from Five Subwatersheds in the Patuxent River Basin Maryland 1986 96 written by Joy S. Lizárraga and published by . This book was released on 1999 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Estuarine Comparisons written by Victor S Kennedy and published by Elsevier. This book was released on 2013-09-25 with total page 728 pages. Available in PDF, EPUB and Kindle. Book excerpt: Estuarine Comparisons compares the knowledge gained about many of the world's estuaries. The book compares the Pacific, Gulf, and Atlantic coast estuaries, and the physical, chemical, and biological parameters in estuaries throughout the world. The text also compares the features of North Sea, east and West Atlantic, Gulf, and Pacific estuaries, as well as of pioneering work in the Chang Jiang estuary of China, one of the largest in the world. Comparisons of anadromous fisheries, estuarine microbiology, and many other interactive features over a wide variety of latitudinal and longitudinal variation are also encompassed. People interested in estuaries, including ecologists, will find the book invaluable.
Download or read book Characteristics of Estuarine Sediments of the United States written by David W. Folger and published by . This book was released on 1972 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt: Additional title page description: A compilation of data, essentially an atlas, on texture and composition of bottom sediements, including geologic and hydrologic factors that influence them, in 45 estuaries.
Download or read book The Effects of Tropical Storm Agnes on the Chesapeake Bay Estuarine System written by Chesapeake Research Consortium and published by . This book was released on 1975 with total page 708 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Geological Survey Water supply Paper written by and published by . This book was released on 1987 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Estuarine Cohesive Sediment Dynamics written by Ashish J. Mehta and published by Springer Science & Business Media. This book was released on 2013-03-07 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt: The background for the Workshop on Cohesive Sediment Dynamics - . !!!!!. Special Reference to Physical Processes in Estuaries is briefly outlined in Chapter I. Here I wish to acknowledge those whose support I consider to be pivotal to this under taking. My deepest appreciation goes to Cynthia Vey, whose organizational skills and dedicated effort made the completion of this volume possible. Thanks are also due to Gail Terry for workshop organization, Jean Branson for word processing and Lillean Pieter for helping with drawings. Finally, I must express my sincere appreciation to Arthur Ezra 9f the National Science Foundation for providing support (through Grant No. CEE-8401185) for the workshop, and to Hsiang Wang for depart mental encouragement. With deepest regret, I must note the untimely death of Ranjan Ariathurai, 39, on June 5, 1985, before this volume could be published. He was a guiding force to many within the small group of researchers in cohesive sediment dynamics, and his professional brilliance and inspirational personal qualities constituted the true spirit . behind the workshop. I trust this volume will serve, albeit in a small way, as a fitting memory to this spirit, and to the remarkable professional contributions Ranjan made during his short career. Professor Ray B. Krone Professor Emmanuel Partheniades Department of Civil Engineering Department of Engineering Sciences University of California University of Florida Davis, California Gainesville, Florida TABLE OF CONTENTS CHAPTER PAGE I. INTRODUCTION Ashish J. Mehta •••••••••••••••••••••••••••••••••••••••••••••••••••• 1 II.
