Ecological Condition Of The Columbia River Estuary

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Ecological Condition Of The Columbia River Estuary

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Author : Gretchen Ann Hayslip
language : en
Publisher:
Release Date : 2007

Ecological Condition Of The Columbia River Estuary written by Gretchen Ann Hayslip and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with Columbia River Estuary (Or. and Wash.) categories.

"The Columbia River estuary is a unique and important ecological resource. EPA's National Estuary Program (NEP) was established by Congress in 1987 in Clean Water Act amendments to improve the quality of estuaries of national significance. The Columbia River estuary is one of 28 estuaries in the NEP. The overall quality of the Columbia River estuary, which forms the border between Washington and Oregon, is described in this report using data collected as part of the Western Environmental Monitoring and Assessment Program (EMAP). EMAP was initiated by EPA's Office of Research and Development (ORD) to estimate the current status and trends in the condition of nation's ecological resources. EMAP also examines associations between these indicators and natural and human-caused stressors. The coastal component of EMAP's monitoring and assessment tools are used to create an integrated and comprehensive coastal monitoring program of coastal ecosystems. Water column measurements are combined with information about sediment characteristics and chemistry, benthic organisms, and fish to describe the current estuarine condition. Sampling began during the summer of 1999, with small estuaries of the Columbia River. In 2000, sampling continued with the larger Columbia River estuary. The boundary for the Columbia River estuary was head of tidal influence, so there were some freshwater components of this sampling effort. The Washington Department of Ecology (Ecology), and the Oregon Department of Environmental Quality (ODEQ) conducted all field sampling for this project in 1999-2000 with assistance from EPA Region 10 and the National Marine Fisheries Service (NMFS). This project was designed to evaluate the overall condition of the Columbia River estuary. For water physical/chemical parameters, 7% of the area of the Columbia River estuary was in fair/poor condition, while nutrient indicators (nitrogen, phosphorus and chlorophyll a) showed a larger percent of the area (31- 46%) in the fair/poor condition category. For sediment indicators, total organic carbon showed none of the areas was in poor condition, but for sediment contaminants approximately 16% of the Columbia River estuarine area was in poor condition. As for biological indicators (chemicals in fish tissue and percent Corbicula), for chemicals in fish tissue, 39% of the area was in fair/poor condition. An even higher percent of the Columbia River estuary (66%) was in poor condition using percent Corbicula, a nonindigenous species, as an indictor. In 2006, we evaluated the ecological condition of the estuaries of Oregon and Washington (Hayslip, et al., 2006). The percent area in fair/poor condition for every indicator we evaluated was higher in the Columbia River estuary. The only exception was for chemicals in fish tissue where we found 47% of the area for estuaries of Oregon and Washington in fair/poor condition and 39% in the Columbia River estuary in fair/poor condition."--Executive summary (page v).

Ecological Condition Of The Columbia River Estuary

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Author : Gretchen Hayslip
language : en
Publisher:
Release Date : 2007

Ecological Condition Of The Columbia River Estuary written by Gretchen Hayslip and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with Ecological risk assessment categories.

Astoria Turning Basin Columbia And Lower Willamette Rivers

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Author :
language : en
Publisher:
Release Date : 1975

Astoria Turning Basin Columbia And Lower Willamette Rivers written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1975 with categories.

Columbia River System Operation Review Sor

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Author :
language : en
Publisher:
Release Date : 1996

Columbia River System Operation Review Sor written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1996 with categories.

Pollution And The Columbia River

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Author : United States. Congress. House. Committee on Small Business. Subcommittee on Regulation, Business Opportunities, and Energy
language : en
Publisher:
Release Date : 1992

Pollution And The Columbia River written by United States. Congress. House. Committee on Small Business. Subcommittee on Regulation, Business Opportunities, and Energy and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992 with Law categories.

An Ecological Characterization Of The Pacific Northwest Coastal Region

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Author :
language : en
Publisher:
Release Date : 1980

An Ecological Characterization Of The Pacific Northwest Coastal Region written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1980 with Coastal ecology categories.

Historical Analysis Of The Columbia River Estuary An Ecological Approach

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Author : Duncan W. Thomas
language : en
Publisher:
Release Date : 1981

Historical Analysis Of The Columbia River Estuary An Ecological Approach written by Duncan W. Thomas and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1981 with categories.

Lower Columbia River Estuary Program Biological Integrity Workshop May 13 14 1999 Sandy Oregon

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Author :
language : en
Publisher:
Release Date : 1999

Lower Columbia River Estuary Program Biological Integrity Workshop May 13 14 1999 Sandy Oregon written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999 with Biological monitoring categories.

From The Forest To The Sea

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Author : Chris Maser
language : en
Publisher: CRC Press
Release Date : 1994-05

From The Forest To The Sea written by Chris Maser and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994-05 with Business & Economics categories.

"This is a very readable book in which the ecological concepts are carefully explained and the glossary of key terms will be a welcome inclusion for those getting to grips with ecology. The book will therefore appeal to a wide readership of aquatic ecologists and foresters, both professional and amateur alike". Scottish Forestry Royal Scottish Forestry Society"...the book makes a very significant contribution to our growing awareness of the ecological importance of driftwood. This contribution is founded on two particular aspects of the book: the writing style, which is clear and directed very much at the general reader; and the scope of the book, which is very broad and, to my knowledge, goes far beyond other reviews of the topic". Angela Gurnell School of Geography, University of Birmingham British Journal of Forestry"This is not a review article containing a current review of all works on wood in aquatic ecosystems. Instead, it is a comprehensive treatment of the general role of wood". J.L. Tank and J.R. Webster Journal of the North American Benthological SocietyFrom the Forest to the Sea: The Ecology of Wood in Streams, Rivers, Estuaries and Oceans is a fascinating scientific work that discusses the role wood plays in very complex and diverse aquatic ecosystems. Until now almost nothing has been published on this little understood topic.-- European settlement and laissez-faire capitalism-- Streams-- The Sea-- The Sea and estuaries-- Rivers

Columbia River Estuary Ecosystem Classification

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Author : U.S. Department of the Interior
language : en
Publisher: CreateSpace
Release Date : 2014-03-30

Columbia River Estuary Ecosystem Classification written by U.S. Department of the Interior and has been published by CreateSpace this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-03-30 with Nature categories.

This document describes the concept, organization, and application of a hierarchical ecosystem classification that integrates saline and tidal freshwater reaches of estuaries in order to characterize the ecosystems of large flood plain rivers that are strongly influenced by riverine and estuarine hydrology. We illustrate the classification by applying it to the Columbia River estuary (Oregon-Washington, USA), a system that extends about 233 river kilometers (rkm) inland from the Pacific Ocean. More than three-quarters of this length is tidal freshwater.