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Changing Dam Operating Criteria to Accommodate Aquatic Biological Diversity
The Colorado squawfish, bonytail chub, humpback chub, and razorback sucker, now threatened with extinction, were once the dominant fishes in the river. Recovering these native species...

Development of Fisheries Models for the Missouri River System
This paper describes how the value of fisheries resources under various Missouri River operating alternatives was determined. The four fish communities evaluated were the reservoir cool/warm...

Assessing Stormwater Impacts
The evaluation of stormwater effects to watershed ecosystems must adopt an integrated approach due to the inherent complexity of assessing such environments, arising from the vulnerability...

Modeling Ecological Impacts of Destratification
Artificial destratification has long been advocated as a means of improving water quality in lakes and reservoirs. The results have been varied with examples of both water quality improvement...

Managing Reservoir Storage for Instream Flow
Two possible approaches to using a portion of reservoir storage to supply instream flows are 1) to determine a fixed amount to be released each year as minimum instream flows and 2) to...

Juanita Creek Channel Restoration?King County, Washington
Juanita Creek, a small basin near Seattle that contains anadromous fish, was experiencing degradation due to urbanization. A detention pond and channel restoration improvements were constructed...

Water Temperature Issues in the 90's and Beyond
Temperature impacts are among the most common and most expensive environmental issues requiring mitigation at water projects. Several emerging environmental and regulatory concerns and...

Sacramento and Trinity River Systems: A Demonstration of River Temperature Management for the 90's
Drought in Northern California resulted in the potential that summer and early fall, 1992, Sacramento and Trinity River temperatures would exceed critical levels for sustaining salmon...

Role of Economics in Endangered Species Act Activities Related to Snake River Salmon
The development of recovery actions for the species of Snake River Salmon listed under the Endangered Species Act (ESA) must consider a wide range of actions covering the different life-cycles...

CASS for Evaluating Hg Contamination in Clear Lake, CA
Characterization of ecosystem contamination and evaluation of potential mitigation schemes represent two of the most immediate challenges to management of water resources. Heavy metals...

Developing an Ecosystem Approach for Restoration of the Bay of Quinte
Author describes the ecosystem approach that has been utilized for the restoration of the Bay of Quinte. Brief description of the study area is presented. Various problems such as bacterial...

Ecological Considerations in Groundwater Management
A wide variety of potential effects of groundwater management on terrestrial vegetation and aquatic biota are described and illustrated with examples from California....

Design of Aquatic Treatment Systems
This paper describes the design parameters and operating procedures used for a nonpoint pollution/stormwater treatment facility known as an Aquatic Treatment System to be located in the...

Seattle's Storm Water Application
Seattle is considered a large city under the National Pollutant Discharge Elimination System (NPDES) storm water permit regulations and was required to submit a storm water permit application...

GIS and Fisheries Management
Geographic Information System (GIS) technologies may provide the tool needed to translate and synthesize geographically oriented marine resources information in Florida. Issues facing...

Fisheries Management Integrated System for a Sustainable Development Policy
Aquatic and terrestrial ecosystems great diversity are affected by many types of environmental impacts, originated by old economic development concepts. It is necessary a integrated multidisciplinary...

Effects of Estuarine Habitat Quality on Juvenile Salmon: I. Chemical Contaminant Exposure and II. Altered Growth and Immune Function
Some urban estuaries on the west coast of the US are important habitats for several species of juvenile salmon and receive multiple stresses from human activities. Because these estuaries...

Functional Significance of Estuaries in the Northeast: A Proposed Case Study Comparing Habitat Utilization and Quality
Most U.S. commercial fisheries landing consists of species dependent on coastal estuaries for spawning, nursery, or migratory feeding habitat. Loss of wetlands, anthropogenic contamination,...

Coastal Development and Cumulative Effects
This paper considers management of habitat quality in coastal zones. It highlights contradictions between modern needs and past modes of development, including industrialization, agrarian...

Habitat Degradation of the LaBranche Wetlands and an Approach to its Restoration
Considered the most productive wetlands within the Lake Pontchartrain Basin, the LaBranche Wetlands south of Lake Pontchartrain consists of over 18,000 acres of brackish to fresh marsh...

 

 

 

 

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