Author: Publisher:
ISBN:
Category : Fisheries
Languages : en
Pages : 1100
Book Description
Special Scientific Report
Author: A Preliminary Bibliography with KWIC Index on the Ecology of Estuaries and Coastal Areas of the Eastern United States
Author: Robert LivingstonePublisher:
ISBN:
Category : Estuaries
Languages : en
Pages : 360
Book Description
Spiny Lobster Explorations in the Pacific and Caribbean Waters of the Republic of Panama
Author: Johnny A. ButlerPublisher:
ISBN:
Category : Fisheries
Languages : en
Pages : 622
Book Description
An Ecological Survey of the Coastal Region of Georgia
Author: Albert Sydney JohnsonPublisher:
ISBN:
Category : Ecology
Languages : en
Pages : 274
Book Description
Synopsis of Biological Data on the Blue Crab, Callinectes Sapidus Rathbun
Author: Mark R. MillikinPublisher:
ISBN:
Category : Blue crab
Languages : en
Pages : 324
Book Description
The Trophic Cascade in Lakes
Author: Stephen R. CarpenterPublisher: Cambridge University Press
ISBN: 9780521566841
Category : Nature
Languages : en
Pages : 404
Book Description
This 1993 book documents the importance of trophic cascades in aquatic ecology.
Concepts and Controversies in Tidal Marsh Ecology
Author: M.P. WeinsteinPublisher: Springer Science & Business Media
ISBN: 0792360192
Category : Nature
Languages : en
Pages : 862
Book Description
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.
Science of Ecosystem-based Management
Author: Alan DesbonnetPublisher: Springer Series on Environmental Management
ISBN:
Category : Nature
Languages : en
Pages : 600
Book Description
In the U.S., approximately two-thirds of the coastal rivers and bays are moderately to severely degraded from nutrient pollution. The contributors to this book use long-term data sets to discuss the interactions among biological, ecological, chemical, and physical processes, and discuss what is known about nutrient inputs to the bay ecosystem, the impacts related to nutrient inputs, and how the ecosystem might respond to a sudden reduction in these inputs.
Selected Water Resources Abstracts
Author: Chesapeake Bay Study
Author: United States. Army. Corps of Engineers. Baltimore DistrictPublisher:
ISBN:
Category : Chesapeake Bay
Languages : en
Pages : 176
Book Description