No description available.

ces. This report falls under Task 3 of the project by documenting and testing the basin-wide model constructed using WEAP software. The documentation of the model addresses all of the inputs for demands and supplies for the river. The model is also set up to include operating polices of the different countries and how they each allocate water to their demands. The supplies in the model include tributary inflows, as well as reservoir and groundwater storage. This report is the first of many testing phases. The two items that were evaluated here, by comparing them against historical records, were the reservoir storage volumes and the streamflow for six IBWC gages. This testing demonstrated that the model has the right logic and flow pattern, however adjustments need to be made to the reservoir releases in order to fully represent the existing system. / Contract number: N62271-97-G-0073. / US Navy (USN) author.

Three case studies explore the effects of human activities on coastal streams and review measures to control the negative consequences of human activities. The first case study, an urban and a rural/forested stream in New Zealand, measured descriptors of water quality, including nutrients, dissolved oxygen and bacterial indicators of faecal contamination. The urban and rural catchments have stream-water qualities that fail to meet standards for fish life or bathing. Of the five sites studied, only one catchment, which had a substantial forest component (50%), had bacterial counts which meet the Australian Recreational Water-quality Guidelines for Secondary Contact (Faecal coliforms and enterococci, ANZECC, 2000) and the New Zealand Interim Guidelines for Freshwater Bathing (Escherichia coli, MofE, 2000). Only one site (which was downstream of a sediment-detention dam) had water clarity which met the Ministry of the Environment's (MofE, 1994) guideline for contact recreation.The results from this New Zealand case study indicate that the absence of riparian vegetation altered the temperature, pH and dissolved oxygen regime, that livestock increased levels of nitrate, turbidity and bacteria indicators of faecal contamination and that urban land use increased peak flows, peak-flow turbidity and bacterial indicators of faecal contamination and decreased base flows.The second case study, of a stream in the former Deutsche Demokratische Republik (East Germany), measured a similar suite of parameters and compared the German stream's 2001 water quality with records from 1991 (directly after the reunification of Germany). Measured levels of total nitrogen, nitrate, ammonium, phosphate and dissolved oxygen all showed significant improvements between 1991 and 2001. Stricter controls and regulations are thought to be the cause.The final case study reviews plans for an urban residential development in the catchment of the New Zealand rural/forested stream. Degraded sections of the stream could actually be improved if the development is sensibly managed. However, the sensitive nature of the receiving environment (a marine reserve) requires that measures be taken to avoid or mitigate any deleterious effects. Plans by the relevant authority, the North Shore City Council, are a major step forward from the unsustainable development of the neighbouring catchment. Still, more needs to be done. Ten recommendations have been made to ameliorate the potential negative impacts of the development.

Thesis (M.S.)--Oregon State University, 1975. / Typescript (photocopy). Includes bibliographical references. Also available on the World Wide Web.

No description available.

The lake sturgeon, Acipenser fulvescens, was once abundant throughout Canada and the United States, however, high commercial harvests and habitat alterations have dramatically reduced most populations. The species was extirpated from many rivers that it once inhabited, and has been designated as threatened or endangered throughout its range. Currently, few healthy lake sturgeon populations remain and the species is receiving considerable attention with respect to its protection and recovery. Although considerable effort is underway to conserve the species, several factors, including over-harvest and habitat alteration, pollution and a general lack of understanding about lake sturgeon ecology and behavior continue to hamper recovery efforts. This thesis examined the ecology and behavior of juvenile lake sturgeon within a 41 km long impounded section of the Winnipeg River, a large river in the Canadian Shield, over a three-year period (2006 – 2008). Habitat preferences, species associations, diet, and movement were described on a seasonal basis. Biological characteristics were also described for juvenile lake sturgeon within the study area. Studies presented in this thesis are among the first conducted for juveniles of this species in the Hudson Bay drainage basin, and from large riverine environments in general. Results are important, not only for improving our understanding of lake sturgeon at the juvenile life history stage, but for facilitating further research. In particular, future research studies identified in the final chapter have the potential to enhance our understanding of factors influencing mortality during the early life history stages of the lake sturgeon, and therefore, greatly enhance recovery efforts.

The lake sturgeon, Acipenser fulvescens, was once abundant throughout Canada and the United States, however, high commercial harvests and habitat alterations have dramatically reduced most populations. The species was extirpated from many rivers that it once inhabited, and has been designated as threatened or endangered throughout its range. Currently, few healthy lake sturgeon populations remain and the species is receiving considerable attention with respect to its protection and recovery. Although considerable effort is underway to conserve the species, several factors, including over-harvest and habitat alteration, pollution and a general lack of understanding about lake sturgeon ecology and behavior continue to hamper recovery efforts. This thesis examined the ecology and behavior of juvenile lake sturgeon within a 41 km long impounded section of the Winnipeg River, a large river in the Canadian Shield, over a three-year period (2006 – 2008). Habitat preferences, species associations, diet, and movement were described on a seasonal basis. Biological characteristics were also described for juvenile lake sturgeon within the study area. Studies presented in this thesis are among the first conducted for juveniles of this species in the Hudson Bay drainage basin, and from large riverine environments in general. Results are important, not only for improving our understanding of lake sturgeon at the juvenile life history stage, but for facilitating further research. In particular, future research studies identified in the final chapter have the potential to enhance our understanding of factors influencing mortality during the early life history stages of the lake sturgeon, and therefore, greatly enhance recovery efforts.

Three case studies explore the effects of human activities on coastal streams and review measures to control the negative consequences of human activities. The first case study, an urban and a rural/forested stream in New Zealand, measured descriptors of water quality, including nutrients, dissolved oxygen and bacterial indicators of faecal contamination. The urban and rural catchments have stream-water qualities that fail to meet standards for fish life or bathing. Of the five sites studied, only one catchment, which had a substantial forest component (50%), had bacterial counts which meet the Australian Recreational Water-quality Guidelines for Secondary Contact (Faecal coliforms and enterococci, ANZECC, 2000) and the New Zealand Interim Guidelines for Freshwater Bathing (Escherichia coli, MofE, 2000). Only one site (which was downstream of a sediment-detention dam) had water clarity which met the Ministry of the Environment's (MofE, 1994) guideline for contact recreation.The results from this New Zealand case study indicate that the absence of riparian vegetation altered the temperature, pH and dissolved oxygen regime, that livestock increased levels of nitrate, turbidity and bacteria indicators of faecal contamination and that urban land use increased peak flows, peak-flow turbidity and bacterial indicators of faecal contamination and decreased base flows.The second case study, of a stream in the former Deutsche Demokratische Republik (East Germany), measured a similar suite of parameters and compared the German stream's 2001 water quality with records from 1991 (directly after the reunification of Germany). Measured levels of total nitrogen, nitrate, ammonium, phosphate and dissolved oxygen all showed significant improvements between 1991 and 2001. Stricter controls and regulations are thought to be the cause.The final case study reviews plans for an urban residential development in the catchment of the New Zealand rural/forested stream. Degraded sections of the stream could actually be improved if the development is sensibly managed. However, the sensitive nature of the receiving environment (a marine reserve) requires that measures be taken to avoid or mitigate any deleterious effects. Plans by the relevant authority, the North Shore City Council, are a major step forward from the unsustainable development of the neighbouring catchment. Still, more needs to be done. Ten recommendations have been made to ameliorate the potential negative impacts of the development.

Thesis (M.S. - Hydrology and Water Resources)--University of Arizona, 1982. / Includes bibliographical references (leaves 141-148).

Thesis (Ph.D.)--Auburn University, 2005. / Abstract. Vita. Includes bibliographic references.