Northern River Basins Study Project Report
Author :
Publisher :
Page : 38 pages
File Size : 41,41 MB
Release : 1995
Category : Athabasca River Watershed (Alta.)
ISBN :
Technical Reports of the Northern River Basins Study by Subject and Geographical Area Studied
Author : Mark S. J. Ouellett
Publisher :
Page : 74 pages
File Size : 18,68 MB
Release : 1997
Category : Aquatic ecology
ISBN :
Book Description
Lists Northern River Basins Study technical reports by issue number, subject, and geographic area studied. Subject areas used to classify the reports are: hydrology/hydraulics, nutrients/dissolved oxygen, contaminants, food chain, drinking water, other uses, traditional knowledge, and synthesis and modelling. Ten geographic divisions are used: three each for the Athabasca and Peace Rivers, and one each of the Wapiti/Smoky rivers, Peace-Athabasca Delta, Lake Athabasca, and Rivière des Rochers/Slave River.
Proceedings of the Northern River Basins Study Instream Flow Needs Workshop, October 14-15, 1993 and January 6-7, 1994
Author : Gordon L. Walder
Publisher :
Page : 218 pages
File Size : 10,73 MB
Release : 1996
Category : Nature
ISBN :
Book Description
The need to address instream flow needs (IFN) in the Northern River Basins Study arises primarily from issues related to flow regulation on the Peace River. Flow regulation may have effects on fish habitats and has clearly affected riparian habitats in the study area. This report presents proceedings of a workshop held to review methods and approaches for conducting IFN analyses, to consider their applicability to the northern river basins, and to develop recommendations for undertaking IFN investigations as part of the Study. The workshop included two sessions, one on IFN related to fisheries and aquatic habitats and one on IFN related to riparian and delta habitats. Topics of presentations and papers include river hydrology, water quality considerations, vegetation studies, instream flow assessment, winter habitat, implications of river impoundment, modelling of wildlife habitat, channel morphology, sediment transport, and wetland vegetation management.
Russian River Basin Study
Author : United States. Army. Corps of Engineers. San Francisco District
Publisher :
Page : 684 pages
File Size : 13,44 MB
Release : 1981
Category : Fisheries
ISBN :
Book Description
Russian River Basin Study
Author : United States. Army. Corps of Engineers
Publisher :
Page : 212 pages
File Size : 24,19 MB
Release : 1980
Category : Russian River basin (Calif.)
ISBN :
Book Description
Northdat
Author : Neil McCubbin
Publisher :
Page : 76 pages
File Size : 33,75 MB
Release : 1996
Category : Social Science
ISBN :
Book Description
The NORTHDAT data base contains information on over 100 parameters routinely reported from ten pulp mills in the Peace and Athabasca basins. Data are included for the seven Alberta mills from January 1970 to December 1993 and for the three British Columbia mills from January 1988 to December 1993. This report documents the NORTHDAT data base, including data sources, data files and units, software used for extraction of data, using the data base (installation, start-up, data extraction, addition of new data), administering the data base, and data quality assurance and quality control. Sample screens, lists of data fields, and names of parameters stored (metals, resin acids, fatty acids, dioxins/furans, chlorinated phenolics, polynuclear aromatics, and others).
Growth Rate and Biomass Responses of Periphytic Algae to Phosphorus Enrichment in Experimental Flumes, Athabasca River, Seasonal Variation, 1993 and 1994
Author : Alec R. Dale
Publisher :
Page : 66 pages
File Size : 48,94 MB
Release : 1995
Category : Algae
ISBN :
Book Description
Presents results of an experiment conducted in artificial streams (flumes) in which the growth of periphyton (algae) was studied in relation to phosphorus concentrations in the water. The goal of the study was to determine whether periphyton growth in the Athabasca River was phosphorus limited and whether the degree of phosphorus limitation varied seasonally. The experimental flumes were located on site, adjacent to the Athabasca River at Hinton. The experiment was designed to test periphyton growth and biomass response to a gradient of phosphorus additions during fall and early spring. Periphyton response was compared for phosphorus additions of zero (control), 1, 10, and 25 micrograms per litre of phosphorus (spring and fall 1994) or zero, 0.1, 0.2, 1, 5, 10, 25, and 50 micrograms per litre of phosphorus (fall 1993). Results include relative specific growth rates as indicated by measuring the build-up of chlorophyll a, the level at which growth rate saturation occurred, and phosphorus concentrations required to reach maximum biomass levels.
Life History Variation of Inconnu (Stenodus Leucichthys) and Burbot (Lota Lota), Lower Slave River, June to December, 1994
Author : Ross Franklin Tallman
Publisher :
Page : 68 pages
File Size : 10,18 MB
Release : 1996
Category : Nature
ISBN :
Book Description
This report characterises the variation in life history traits important to biological productivity in two of the key fish species in the Lower Slave River: inconnu and burbot, both piscivorous throughout most of their lives, abundant in the river, and important for both commercial and Aboriginal subsistence harvest. Specifically, the report describes size at age, the seasonal pattern of sexual maturity development with time, age at maturity, size and age-specific fecundity, and the population age structure of those two species.
Growth Rate and Biomass Responses of Periphytic Algae to Phosphorus Enrichment in Experimental Flumes, Athabasca River, April and May, 1994
Author : Alec R. Dale
Publisher :
Page : 70 pages
File Size : 46,43 MB
Release : 1995
Category : Science
ISBN :
Book Description
Presents results of an experiment conducted in artificial streams (flumes) in which the growth of periphyton (algae) was studied in relation to phosphorus concentrations in the water. The goal of the study was to determine whether periphyton growth in the Athabasca River was phosphorus limited and whether the degree of phosphorus limitation varied from a similar study conducted in fall 1993. The experimental flumes were located on site, adjacent to the Athabasca River at Hinton. The four-week experiment consisted of four treatments: a control of zero phosphorus addition and three experimental levels of 1, 10, and 25 micrograms per litre of phosphorus. Results include relative specific growth rates as indicated by measuring the build-up of chlorophyll a, the level at which growth rate saturation occurred, and phosphorus concentrations required to reach maximum biomass levels in spring.
Identification of Spatial and Temporal Patterns in Nutrient Limitation with Herbivory Effects, Wapiti, Smoky and Athabasca Rivers, 1994
Author : Garry J. Scrimgeour
Publisher : The Study
Page : 64 pages
File Size : 15,74 MB
Release : 1996
Category : Nature
ISBN :
Book Description
Understanding the effects of nutrients on the aquatic environment will be critical for managing industrial and municipal effluent discharges in northern Alberta rivers. One objective of this study was to identify spatial patterns of nutrient limitation in the Wapiti-Smoky and Athabasca river systems, which receive a diversity of effluent discharges including municipal sewage, agricultural runoff, and effluent from oil sands and pulp mills. Investigators conducted two experiments to accomplish this goal: identification of the interactive effects of both nutrient enrichment and grazing by aquatic insects (herbivory) on algal biomass, using nutrient diffusing substrata (NDS) downstream of the Hinton combined effluent; and using NDS to quantify large-scale patterns in algal biomass and nutrient limitation upstream and downstream of the major effluent and tributary input sources along the three rivers. NDS placed at 33 sites aided in the identification of river reaches having no nutrient limitation and those having some form of nutrient limitation.
