Download or read book Slough Channel Network and Marsh Plain Morphodynamics in a Rapidly Accreting Tidal Marsh Restoration on Diked Subsided Bayland San Francisco Estuary California written by Stuart William Siegel and published by . This book was released on 2002 with total page 756 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book South San Francisco Bay Shoreline Project Santa Clara County California written by United States. Office of the Assistant Secretary of the Army (Civil Works) and published by . This book was released on 2016 with total page 1648 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dissertation Abstracts International written by and published by . This book was released on 2003 with total page 644 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Tidal Regimes and Tide Marsh Hydroperiod in the San Francisco Estuary written by Karl Patrick Malamud-Roam and published by . This book was released on 2000 with total page 618 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Guide to Geography Programs in North America written by and published by . This book was released on 2004 with total page 762 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Tidal Marsh Restoration and Dredge Disposal in the San Francisco Estuary California written by Stuart William Siegel and published by . This book was released on 1993 with total page 530 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Environmental Change in San Francisco Estuary Tidal Marshes written by Elizabeth Burke Watson and published by . This book was released on 2006 with total page 438 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dutch Slough Tidal Marsh Restoration Plan and Feasibility Report written by and published by . This book was released on 2005 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Tidal Marsh Habitat Use by Fishes in the San Francisco Estuary written by Denise De Carion Colombano and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Tidal marshes are considered one of the most productive fish habitats in the world, yet how they support economically, recreationally, and ecologically valuable species in the San Francisco Estuary remains unclear. A major factor contributing to this uncertainty is extensive tidal marsh loss along the shorelines of San Francisco Bay and in the upstream Sacramento-San Joaquin Delta ("Delta"). Located in between the bay and the Delta, Suisun Marsh is a large network of tidal sloughs, tidal marshes, managed tidal ponds, and uplands that serves as a regional stronghold for a diverse fish assemblage. Understanding how Suisun Marsh supports such fishes is paramount for informing restoration throughout not only the San Francisco Estuary, but estuaries worldwide. The first chapter of this dissertation uses long-term fish-monitoring data to examine Suisun Marsh's role as a fish nursery for resident and transient fishes. Young-of-year Sacramento splittail (Pogonichthys macrolepidotus), tule perch (Hysterocarpus traskii), and striped bass (Morone saxatilis) were abundant in shallow interior sloughs hydrologically connected to tidal marshes, managed tidal ponds, and/or uplands; in contrast, starry flounder (Platichthys stellatus) were abundant in deeper, flow-through sloughs closer to the open estuary. Habitat complexity and freshwater flows were major drivers of nursery function. The second chapter describes resident and transient fish movements in an intertidal channel located in the largest natural tidal marsh in Suisun Marsh. The resident tule perch consistently spent more time per visit, per day, and per season using the intertidal channel, whereas the transient splittail and striped bass were more opportunistic and exhibited higher individual variation in movement patterns. Tides were important to tule perch and striped bass, whereas moon phase was important to splittail. The third chapter examines fish feeding guilds (planktivores, benthivores, piscivores) across a natural tidal marsh elevation gradient. Tides structured distributions of guilds across the elevation gradient and likely influenced foraging and predator avoidance strategies. Macrozooplankton and benthic macroinvertebrates were common prey items in fish stomachs and highlighted the importance of propagating diverse food web pathways to fishes in tidal marshes. Collectively, these chapters show that resident and transient fishes are adapted to using Suisun Marsh's mosaic of habitats at the land-water interface as nursery habitat and for food and refuge.
Download or read book The Interaction of Physical and Biological Determinants Producing Vegetation Zonation in Tidal Marshes of the San Francisco Bay Estuary California USA written by Steven Dudley Culberson and published by . This book was released on 2001 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Concepts and Controversies in Tidal Marsh Ecology written by M.P. Weinstein and published by Springer Science & Business Media. This book was released on 2000-10-31 with total page 862 pages. Available in PDF, EPUB and Kindle. Book excerpt: Tidal salt marshes are viewed as critical habitats for the production of fish and shellfish. As a result, considerable legislation has been promulgated to conserve and protect these habitats, and much of it is in effect today. The relatively young science of ecological engineering has also emerged, and there are now attempts to reverse centuries-old losses by encouraging sound wetland restoration practices. Today, tens of thousands of hectares of degraded or isolated coastal wetlands are being restored worldwide. Whether restored wetlands reach functional equivalency to `natural' systems is a subject of heated debate. Equally debatable is the paradigm that depicts tidal salt marshes as the `great engine' that drives much of the secondary production in coastal waters. This view was questioned in the early 1980s by investigators who noted that total carbon export, on the order of 100 to 200 g m-2 y-1 was of much lower magnitude than originally thought. These authors also recognized that some marshes were either net importers of carbon, or showed no net exchange. Thus, the notion of `outwelling' has become but a single element in an evolving view of marsh function and the link between primary and secondary production. The `revisionist' movement was launched in 1979 when stable isotopic ratios of macrophytes and animal tissues were found to be `mismatched'. Some eighteen years later, the view of marsh function is still undergoing additional modification, and we are slowly unraveling the complexities of biogeochemical cycles, nutrient exchange, and the links between primary producers and the marsh/estuary fauna. Yet, since Teal's seminal paper nearly forty years ago, we are not much closer to understanding how marshes work. If anything, we have learned that the story is far more complicated than originally thought. Despite more than four decades of intense research, we do not yet know how salt marshes function as essential habitat, nor do we know the relative contributions to secondary production, both in situ or in the open waters of the estuary. The theme of this Symposium was to review the status of salt marsh research and revisit the existing paradigm(s) for salt marsh function. Challenge questions were designed to meet the controversy head on: Do marshes support the production of marine transient species? If so, how? Are any of these species marsh obligates? How much of the production takes place in situ versus in open waters of the estuary/coastal zone? Sessions were devoted to reviews of landmark studies, or current findings that advance our knowledge of salt marsh function. A day was also devoted to ecological engineering and wetland restoration papers addressing state-of-the-art methodology and specific case histories. Several challenge papers arguing for and against our ability to restore functional salt marshes led off each session. This volume is intended to serve as a synthesis of our current understanding of the ecological role of salt marshes, and will, it is hoped, pave the way for a new generation of research.
Download or read book Tidal Channel Meandering and Salt Marsh Development in a Marine Transgressed Incised Valley System written by Bo Li and published by ProQuest. This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: It has been long debated whether or not tidal channels meander through space and time. If so, at what magnitude did they meander; and how did their changes in space and time relate to the morphodynamics of salt marsh development and facies configuration of transgressive valleys? Many have argued that the laws that govern the fluvial streams are equally valid for tidal channels and tidal channel networks. However, there is a lack of field measurements to support the aforementioned statements. Further, the dynamic relationship between tidal channel network development and salt marsh evolution was poorly understood in terms of erosion vs. accretion in response to sea-level changes. Also, models of salt marsh initiation and tidal channel development within transgressive valleys in the US Atlantic coastal plains are not well studied as compared with those of the North Sea in Europe. In an attempt to systematically study the dynamic relationships between the salt marshes and tidal channel networks of transgressive valleys and other system forcings (such as sediment supply, sea-level changes, topographic control, and halophyte production), I chose the Great Marsh area at Lewes, Delaware. To better address these issues, other estuarine tidal basins and incised valleys along the Delaware Bay and Atlantic coasts were studied to serve as modern analogs for the support of my findings in the Great Marsh area. The following major topics/themes are covered and explored in this research study: geologic framework of the study area, modern-ancient analogs, sources of sediment supply, morphometric properties of tidal meander planforms, construction of the paleotopography, hypsometric and volumetric analyses of the incised valley fill, Holocene evolution of the Great Marsh, modern analogs of marsh initiation and tidal meandering development, and discussions of various topics such as tidal channel network initiation and development, incised valley system's self-adjustment in response to changes in sea-level and sediment supply, and facies models as applicable to the transgressive incised valley fills. (Abstract shortened by UMI.).
Download or read book Salt Marsh Restoration Rehabilitation and Creation Techniques for Caltrans Construction Projects San Francisco Bay California written by and published by . This book was released on 1991 with total page 466 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Shifting Shores written by San Francisco Estuary Institute and published by . This book was released on 2015-06-30 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: As sea level rise accelerates, our shores are increasingly vulnerable to erosion. This study is the first systematic analysis of the rates of marsh retreat (erosion) or expansion (progradation) over time for San Francisco Bay. Key findings include: 60% of the marshes in San Pablo Bay have been expanding over the past two decades (1-4 m/yr) 6% are retreating Some areas have been expanding for over 150 years Shore change is a potential indicator of resilience Tidal marshes are generally backed by steep levees and lack transition zone. There are few opportunities for landward migration; so marshes will tend to evolve through shoreline change or by vertical accretion. Some marshes appear to be retreating, due to their vertical scarped edges, but are in fact found to be expanding bayward. This new information can provide the foundation for understanding drivers of shore change, such as wave energy, watershed sediment supply"
Download or read book Hydraulic and Sediment Transport Models for Design of Tidal Marsh Restoration written by Guangdou Hu and published by . This book was released on 1994 with total page 622 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Tidal Marsh Restoration written by Charles T. Roman and published by Island Press. This book was released on 2012-08-07 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Many coastal tidal marshes have been significantly degraded by roadways and other projects that restrict tidal flows, limiting their ability to provide vital ecosystem services including support of fish and wildlife populations, flood protection, water quality maintenance, and open space. Tidal Marsh Restoration provides the scientific foundation and practical guidance necessary for coastal zone stewards to initiate salt marsh tidal restoration programs. The book compiles, synthesizes, and interprets the current state of knowledge on the science and practice of salt marsh restoration, bringing together leaders across a range of disciplines in the sciences (hydrology, soils, vegetation, zoology), engineering (hydraulics, modeling), and public policy, with coastal managers who offer an abundance of practical insight and guidance on the development of programs. The work presents in-depth information from New England and Atlantic Canada, where the practice of restoring tidal flow to salt marshes has been ongoing for decades, and shows how that experience can inform restoration efforts around the world. Students and researchers involved in restoration science will find the technical syntheses, presentation of new concepts, and identification of research needs to be especially useful as they formulate research and monitoring questions, and interpret research findings. Tidal Marsh Restoration is an essential work for managers, planners, regulators, environmental and engineering consultants, and others engaged in planning, designing, and implementing projects or programs aimed at restoring tidal flow to tide-restricted or diked salt marshes.
Download or read book Spatial and Temporal Trends of Fishes and Aquatic Invertebrates in a Restored Salt Marsh San Francisco Estuary CA written by Jonathan David Cook and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The loss of salt marsh has caused the decline of many aquatic organisms which depend on marshes to provide critical ecosystem functions such as spawning habitat, nursery habitat, and food resources. There are currently many restoration efforts in coastal salt marshes taking place worldwide to redress the loss of this habitat. In San Francisco Estuary, one of the largest salt marsh restoration projects is the South Bay Salt Pond Restoration Program, which aims to return up to 61 km2 of salt production ponds to tidal habitat. We examined patterns in the distribution of fishes and invertebrates to determine how they responded to restoration actions. The results show a rapid positive response; within the first several years the restored tidal habitats were used by 40 species of fish and many species of invertebrates. The restored areas supported most members of the local fish and invertebrate community. We found no discernable differences in the physicochemical habitat between pre-existing slough habitat and newly breeched restoration sites. Most variability in community structure was attributed to seasonal changes and not to spatial patterns of landscape attributes. This study supports the assertion that salt marsh restoration can have rapid benefits to estuarine-dependent biota, including imperiled species.
