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Journal articles on the topic 'Reservoirs – British Columbia'

Author: Grafiati

Published: 4 June 2021

Last updated: 14 February 2022

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1

Pieters, Roger, and Gregory A. Lawrence. "Plunging inflows and the summer photic zone in reservoirs." Water Quality Research Journal 47, no. 3-4 (2012): 268–75. http://dx.doi.org/10.2166/wqrjc.2012.143.

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Kinbasket and Revelstoke Reservoirs are part of the Columbia River system in eastern British Columbia, Canada. Hydroelectricity from these large reservoirs represents about 30% of the province's generation capacity. Of interest to water use planning is the effect of reservoir operation on pelagic productivity. We address one small part of this question, namely, the supply of nutrients carried by inflows that plunge below the photic zone during the summer. Using an idealized water balance for the photic zone, three cases are considered: (1) a shallow outlet, (2) a deep outlet, and (3) no outflo

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2

Hendry, M. Jim, Ashis Biswas, Joseph Essilfie-Dughan, Ning Chen, Stephen J. Day, and S. Lee Barbour. "Reservoirs of Selenium in Coal Waste Rock: Elk Valley, British Columbia, Canada." Environmental Science & Technology 49, no. 13 (2015): 8228–36. http://dx.doi.org/10.1021/acs.est.5b01246.

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3

Druce, Donald J. "IDENTIFICATION OF ERRORS IN THE DAILY INFLOW RECORDS FOR BRITISH COLUMBIA HYDRO RESERVOIRS." Canadian Water Resources Journal 21, no. 2 (1996): 121–29. http://dx.doi.org/10.4296/cwrj2102121.

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4

Schiefer, Erik, and Brian Klinkenberg. "The distribution and morphometry of lakes and reservoirs in British Columbia: a provincial inventory." Canadian Geographer/Le G?ographe canadien 48, no. 3 (2004): 345–55. http://dx.doi.org/10.1111/j.0008-3658.2004.00064.x.

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5

Davies, J. M., W. H. Nowlin, and A. Mazumder. "30Seasonal control of phytoplankton biomass and productivity in coastal british columbia lakes and reservoirs." Journal of Phycology 39, s1 (2003): 11. http://dx.doi.org/10.1111/j.0022-3646.2003.03906001_30.x.

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6

Davies, J. M., M. Roxborough, and A. Mazumder. "Origins and implications of drinking water odours in lakes and reservoirs of British Columbia, Canada." Water Research 38, no. 7 (2004): 1900–1910. http://dx.doi.org/10.1016/j.watres.2004.01.008.

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7

Britton, A. P., T. Redford, J. J. Bidulka, et al. "Beyond Rabies: Are Free-Ranging Skunks (Mephitis mephitis) in British Columbia Reservoirs of Emerging Infection?" Transboundary and Emerging Diseases 64, no. 2 (2015): 603–12. http://dx.doi.org/10.1111/tbed.12426.

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8

Phipps, Graeme G. "Exploring for dolomitized Slave Point carbonates in northeastern British Columbia." GEOPHYSICS 54, no. 7 (1989): 806–14. http://dx.doi.org/10.1190/1.1442709.

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In northeastern British Columbia, a number of significant gas fields have been discovered in dolomitized Slave Point carbonates located along the edge of the mid‐Devonian barrier‐reef system. Reflection seismic techniques have been used extensively in exploring for these fields. A common exploration practice has been to detect the reef edge on seismic data and then to drill on isochron thins and structural highs close to this edge. The remaining reserves, however, are proving more difficult to find, and this exploration technique does not always guarantee that the Slave Point formation is dolo

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9

Davies, John-Mark, Weston H. Nowlin, and Asit Mazumder. "Temporal changes in nitrogen and phosphorus codeficiency of plankton in lakes of coastal and interior British Columbia." Canadian Journal of Fisheries and Aquatic Sciences 61, no. 8 (2004): 1538–51. http://dx.doi.org/10.1139/f04-092.

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Plankton nutrient limitation and deficiency were assessed in six coastal and four interior lakes and reservoirs in British Columbia. Ultimate nutrient limitation was defined as occurring over longer time scales (months to years) and represented the potential attainable biomass or yield. Proximate nutrient deficiency reflected plankton physiological status and, therefore, represented potential limitations of instantaneous growth rates. All lakes and reservoirs were considered to be ultimately P-limited according to total N to total P ratios (TN:TP). However, both P and N deficiencies were found

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10

Stevens, Craig L., and Gregory A. Lawrence. "Estimation of wind-forced internal seiche amplitudes in lakes and reservoirs, with data from British Columbia, Canada." Aquatic Sciences 59, no. 2 (1997): 115–34. http://dx.doi.org/10.1007/bf02523176.

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11

Stevens, Craig L., and Gregory A. Lawrence. "Estimation of wind-forced internal seiche amplitudes in lakes and reservoirs, with data from British Columbia, Canada." Aquatic Sciences 59, no. 2 (1997): 115. http://dx.doi.org/10.1007/s000270050080.

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12

Godbout, L., C. C. Wood, R. E. Withler, et al. "Sockeye salmon (Oncorhynchus nerka) return after an absence of nearly 90 years: a case of reversion to anadromy." Canadian Journal of Fisheries and Aquatic Sciences 68, no. 9 (2011): 1590–602. http://dx.doi.org/10.1139/f2011-089.

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We document the recent reappearance of anadromous sockeye salmon ( Oncorhynchus nerka ) that were thought to have been extirpated by the construction of hydroelectric dams on the Coquitlam and Alouette rivers in British Columbia, Canada, in 1914 and 1927, respectively. Unexpected downstream migrations of juveniles during experimental water releases into both rivers in 2005 and 2006 preceded upstream return migrations of adults in 2007 and 2008. Genetic (microsatellite and mitochondrial DNA) markers and stable isotope (δ34S and 87Sr/86Sr) patterns in otoliths confirm that both the juvenile down

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13

Chen, Zhuoheng, and Peter Hannigan. "A shale gas resource potential assessment of Devonian Horn River strata using a well-performance method." Canadian Journal of Earth Sciences 53, no. 2 (2016): 156–67. http://dx.doi.org/10.1139/cjes-2015-0094.

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Middle to Upper Devonian Horn River strata in British Columbia, western Canada, has become a proven province of commercial shale gas resource in the last few years. The shale gas resource potential in the Horn River Basin has been historically assessed based on reservoir volumetric characteristics. However, as fundamental mechanisms controlling shale gas ultimate recovery remain poorly understood, the classic theories and simulation techniques applied to evaluate recoverable gas for conventional reservoir have proven inadequate for shale gas reservoirs. Determining the ultimate recovery from p

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14

Price, M. H. H., A. Morton, and J. D. Reynolds. "Evidence of farm-induced parasite infestations on wild juvenile salmon in multiple regions of coastal British Columbia, Canada." Canadian Journal of Fisheries and Aquatic Sciences 67, no. 12 (2010): 1925–32. http://dx.doi.org/10.1139/f10-105.

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Salmon farms are spatially concentrated reservoirs of fish host populations that can disrupt natural salmonid host–parasite dynamics. Sea lice frequently infect farm salmon and parasitize sympatric wild juvenile salmonids, with negative impacts on survival in Europe and Pacific Canada. We examined louse parasitism of wild juvenile chum salmon ( Oncorhynchus keta ) and pink salmon ( Oncorhynchus gorbuscha ) from three salmon farming regions in British Columbia (Finlayson, Broughton Archipelago, and Georgia Strait). We compared sites of low and high exposure to farms and included an area without

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15

Hepp, Mathew, Eirikur Palsson, Sarah K. Thomsen, and David J. Green. "Predicting the effects of reservoir water level management on the reproductive output of a riparian songbird." PLOS ONE 16, no. 2 (2021): e0247318. http://dx.doi.org/10.1371/journal.pone.0247318.

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Dams and reservoirs alter natural water flow regimes with adverse effects on natural ecosystems. Quantifying and reducing these effects are important as global demands for energy and water, and the number of dams and reservoir, increase. However, costs and logistic constraints typically preclude experimental assessment of reservoir effects on the environment. We developed a stochastic individual-based model (IBM), parameterized using empirical data, to estimate the annual productivity of yellow warblers that breed in riparian habitat within the footprint of the Arrow Lakes Reservoir in British

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16

Solano, Nisael, Liliana Zambrano, and Roberto Aguilera. "Cumulative-Gas-Production Distribution on the Nikanassin Tight Gas Formation, Alberta and British Columbia, Canada." SPE Reservoir Evaluation & Engineering 14, no. 03 (2011): 357–76. http://dx.doi.org/10.2118/132923-pa.

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Summary 271 wells producing exclusively from the Nikanassin and equivalent formations in a very large area of more than 15,000 km2 in the Western Canada Sedimentary basin (WCSB), Alberta and British Columbia, Canada, have been evaluated with a view to determine the distribution of cumulative gas production and the possibilities of intensive infill drilling. The Upper Jurassic to Lower Cretaceous Nikanassin formation is generally characterized as a tight gas formation with low values of permeability (typically a fraction of millidarcy) and low porosities (usually less than 6%). It is likely tha

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17

Riazi, Naimeh, David W. Eaton, Alemayehu Aklilu, and Andrew Poulin. "Application of focal-time analysis for improved induced seismicity depth control: A case study from the Montney Formation, British Columbia, Canada." GEOPHYSICS 85, no. 6 (2020): KS185—KS196. http://dx.doi.org/10.1190/geo2019-0833.1.

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Characterization of induced seismicity and associated microseismicity is an important challenge for enhanced oil recovery and development of tight hydrocarbon reservoirs. In particular, accurately correlating hypocenters of induced events to stratigraphic layers plays an important role in understanding the mechanisms of fault activation. Existing methods for estimating focal depth, however, are prone to a high degree of uncertainty. A comprehensive analysis of inferred focal depths is applied to induced events that occurred during completions of horizontal wells targeting the Montney Formation

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18

Mackinder, Alana, Brian L. Cousens, Richard E. Ernst, and Kevin R. Chamberlain. "Geochemical, isotopic, and U–Pb zircon study of the central and southern portions of the 780 Ma Gunbarrel Large Igneous Province in western Laurentia." Canadian Journal of Earth Sciences 56, no. 7 (2019): 738–55. http://dx.doi.org/10.1139/cjes-2018-0083.

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Spanning 2500 km along the western margin of North America are 780 Ma dykes, sills, and minor volcanic packages of the Gunbarrel Large Igneous Province. This study focuses on southern (northwestern United States) and central (northern British Columbia) Gunbarrel intrusions and metavolcanics rocks of the Irene and Huckleberry formation (Washington State). Southern Gunbarrel U–Pb ages range from 780 to 769 Ma and new U–Pb zircon dates for the Turah and Rogers Pass sills are 778.6 ± 0.7 and 778.7 ± 0.9 Ma, respectively. Southern Gunbarrel intrusions are medium- to coarse-grained diabases that are

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19

Yim, Grace, Waldan Kwong, Julian Davies, and Vivian Miao. "Complex integrons containing qnrB4-ampC (blaDHA-1) in plasmids of multidrug-resistant Citrobacter freundii from wastewater." Canadian Journal of Microbiology 59, no. 2 (2013): 110–16. http://dx.doi.org/10.1139/cjm-2012-0576.

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Microbial populations in wastewater treatment plants (WWTPs) are increasingly being recognized as environmental reservoirs of antibiotic resistance genes. PCR amplicons for plasmid-mediated quinolone resistance determinants qnrA, qnrB, and qnrS were recorded in samples from a WWTP in Vancouver, British Columbia. Six strains of ciprofloxacin-resistant Citrobacter freundii were isolated and found to carry mutations in gyrA and parC, as well as multiple plasmid-borne resistance genes, collectively including qnrB; aac(6′)-Ib-cr; β-lactamase-encoding genes from molecular classes A (blaTEM-1), C (am

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20

Ma, Yvonne, Jessica Chen, Karen Fong, et al. "Antibiotic Resistance in Shiga Toxigenic Escherichia coli Isolates from Surface Waters and Sediments in a Mixed Use Urban Agricultural Landscape." Antibiotics 10, no. 3 (2021): 237. http://dx.doi.org/10.3390/antibiotics10030237.

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Antibiotic resistance (AR) phenotypes and acquired resistance determinants (ARDs) detected by in silico analysis of genome sequences were examined in 55 Shiga toxin-producing Escherichia coli (STEC) isolates representing diverse serotypes recovered from surfaces waters and sediments in a mixed use urban/agricultural landscape in British Columbia, Canada. The isolates displayed decreased susceptibility to florfenicol (65.5%), chloramphenicol (7.3%), tetracycline (52.7%), ampicillin (49.1%), streptomycin (34.5%), kanamycin (20.0%), gentamycin (10.9%), amikacin (1.8%), amoxicillin/clavulanic acid

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21

Souther, J. G. "The western Anahim Belt: root zone of a peralkaline magma system." Canadian Journal of Earth Sciences 23, no. 6 (1986): 895–908. http://dx.doi.org/10.1139/e86-091.

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The Anahim Volcanic Belt extends easterly across central British Columbia, where it includes three large shield volcanoes and numerous small monogenetic cones and lava flows. Potassium–argon dates on the lavas suggest that the onset of volcanic activity progressed from approximately 8 Ma in the west to less than 1 Ma in the east. A western extension of the belt into the strongly uplifted and deeply dissected Coast Mountains is defined by an east-trending zone of chemically distinctive, high-level plutons, dyke swarms, and remnants of eruptive breccia that yield K–Ar dates of 10–14 Ma. The lava

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22

Lindgren, C., C. Pearce, and K. Allison. "The Biology of Invasive Alien Plants in Canada. 11. Tamarix ramosissima Ledeb., T. chinensis Lour. and hybrids." Canadian Journal of Plant Science 90, no. 1 (2010): 111–24. http://dx.doi.org/10.4141/cjps08212.

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These Tamarix species and their hybrids, known collectively as saltcedar, are perennial small trees or shrubs native to Eurasia, and were among the Tamarix species introduced to the United States in 1800s as ornamentals, for plantings in windbreaks, and to stabilize eroding stream banks. They have since escaped and become damaging invasive plants in large areas of the western and Great Plains regions of the United States. They are able to reproduce vigorously by both seed and vegetative propagation, and are persistent and long-lived once established. Ecological problems include hydrologic impa

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23

Tommasi, Désirée, Alice Miro, Heather A. Higo, and Mark L. Winston. "Bee diversity and abundance in an urban setting." Canadian Entomologist 136, no. 6 (2004): 851–69. http://dx.doi.org/10.4039/n04-010.

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AbstractWe assessed bee diversity and abundance in urban areas of Vancouver, British Columbia, Canada, to determine how urban environments can support bees. Habitats examined were community and botanical gardens, urban wild areas, Naturescape flower beds and backyards, and traditional flower beds and backyards. A total of 56 bee species (Hymenoptera), including species of the genera Andrena Fabr. (Andrenidae), Bombus Latr. (Apidae), Osmia Panzer and Megachile Latr. (Megachilidae), and Halictus Latr. and Dialictus Pauly (Halictidae), were collected. Abundance exhibited strong seasonal variation

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24

Stockner, John, Arne Langston, Dale Sebastian, and Greg Wilson. "The Limnology of Williston Reservoir: British Columbia's Largest Lacustrine Ecosystem." Water Quality Research Journal 40, no. 1 (2005): 28–50. http://dx.doi.org/10.2166/wqrj.2005.003.

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Abstract In surface area, Williston Reservoir is British Columbia's largest lacustrine ecosystem. The reservoir shows remarkably little spatiotemporal variance among its three major reaches (Finlay, Parsnip and Peace), despite the immensity and biogeoclimatic diversity of its drainage basins. Williston is ultra-oligotrophic with average concentrations of total dissolved phosphorus (TDP) ranging from 3 to 5 µg/L and nitrate-nitrogen (NO3-N) from 60 to 65 µg/L. The pelagic plankton community of Williston Reservoir is dominated by bacteria, pico-cyanobacteria, nano-flagellates and small diatoms,

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25

Dore, Mohammed H. I., Mariano Matilla-García, and Manuel Ruiz Marín. "Changing Patterns of Precipitation at the Sooke Reservoir in British Columbia." Atlantic Economic Journal 41, no. 2 (2012): 97–113. http://dx.doi.org/10.1007/s11293-012-9346-y.

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26

Sevigny, J. H., and R. J. Thériault. "Geochemistry and SrNd isotopic composition of Eocene lamphrophyre dykes, southeastern British Columbia." Canadian Journal of Earth Sciences 40, no. 6 (2003): 853–64. http://dx.doi.org/10.1139/e03-014.

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Mineral compositions, geochemical analyses, and SrNd isotopic compositions are reported for alkaline and calc-alkaline lamprophyres collected along the southern margin of the Valhalla Complex, southeastern British Columbia. The lamprophyres were emplaced during Eocene extension and lithospheric thinning associated with tectonic denudation of the Valhalla Complex. SiO2 contents range from 44.451.6 wt.%, K2O from 1.33.7 wt.%, and volatile contents (H2O + CO2 + SO3) from 0.84.6 wt.%. MgO and Cr contents are 9.57.6 wt.% and 540130 ppm, respectively, for samples with Mg#s between 0.69 and 0.6

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27

Clements, David R., Dan E. Cole, Jane King, and Alec McClay. "The biology of Canadian weeds. 128. Leucanthemum vulgare Lam." Canadian Journal of Plant Science 84, no. 1 (2004): 343–63. http://dx.doi.org/10.4141/p02-112.

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Leucanthemum vulgare Lam. (Asteraceae), known as ox-eye daisy, is a familiar perennial herb with white ray florets and yellow disc florets. It commonly inhabits roadside ver ges, pastures and old fields from Newfoundland to British Columbia, and also as far north as the Yukon Territory. Introduced from Europe, L. vulgare was well established in North America by 1800. The Canadian distribution of L. vulgare has expanded in many areas recently, particularly in western Canada. It can form dense populations that may reduce diversity of natural vegetation or pasture quality, and also serves as a ho

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28

Ghent, Edward D., and James R. O'Neil. "Late Precambrian marbles of unusual carbon-isotope composition, southeastern British Columbia." Canadian Journal of Earth Sciences 22, no. 3 (1985): 324–29. http://dx.doi.org/10.1139/e85-032.

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Carbon- and oxygen-isotope analyses were made of both carbonates and graphites from several Precambrian metamorphic samples from British Columbia. The carbon-isotope data are unusual in that the δ13C values of many marbles are very high, up to 9.9, and the most positive values occur in the sillimanite-zone rocks. The δ13C values of graphite are also relatively high, and the 13C fractionations between calcite and graphite suggest that (1) the rocks attained and retained carbon-isotope equilibrium during metamorphism, and (2) the temperature of graphite equilibration in marbles from the silliman

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Werner, Arelia, Terry Prowse, and Barrie Bonsal. "Characterizing the Water Balance of the Sooke Reservoir, British Columbia over the Last Century." Climate 3, no. 1 (2015): 241–63. http://dx.doi.org/10.3390/cli3010241.

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30

Mate, D. J., and V. M. Levson. "Quaternary stratigraphy and history of the Ootsa Lake - Cheslatta River area, Nechako Plateau, central British Columbia." Canadian Journal of Earth Sciences 38, no. 4 (2001): 751–65. http://dx.doi.org/10.1139/e00-112.

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Erosion along the Nechako Reservoir and Cheslatta River Spillway has resulted in unusually well-exposed late Quaternary and Holocene stratigraphy. Surficial sediments in the study area are mostly products of Late Wisconsinan glaciation. However, evidence for pre-Late Wisconsinan sedimentation has been found along the shores of the Nechako Reservoir, including till of an older glaciation and organic-bearing, blue-grey, lacustrine sediments of probable Middle Wisconsinan age. Stratigraphic correlation of the lake sediments suggests that an extensive lake system occurred in the region during the

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31

Weber, Frank, Dan Nixon, and Jeff Hurley. "Semi-automated classification of river ice types on the Peace River using RADARSAT-1 synthetic aperture radar (SAR) imagery." Canadian Journal of Civil Engineering 30, no. 1 (2003): 11–27. http://dx.doi.org/10.1139/l02-073.

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The winter regime of the Peace River in northern British Columbia and Alberta is a determining factor for the operation of the British Columbia Hydro and Power Authority Williston Reservoir. Therefore, fine beam RADARSAT-1 synthetic aperture radar (SAR) satellite images were acquired in winter and spring 2000 and 2001 and analyzed for ice cover types. Video footage of the ice conditions on the Peace River was obtained from aerial ice observations that were conducted simultaneously with the image acquisitions. The analysis of the images was done (i) visually and (ii) using an unsupervised Fuzzy

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32

Edinborough, Kevan, Andrew Martindale, Gordon T. Cook, Kisha Supernant, and Kenneth M. Ames. "A Marine Reservoir Effect ∆R Value for Kitandach, in Prince Rupert Harbour, British Columbia, Canada." Radiocarbon 58, no. 4 (2016): 885–91. http://dx.doi.org/10.1017/rdc.2016.46.

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AbstractPrince Rupert Harbour (PRH), on the north Pacific Coast of British Columbia, contains at least 157 shell middens, of which 66 are known villages, in an area of approximately 180 km2. These sites span the last 9500 yr and in some cases are immense, exceeding 20,000 m2 surface area and several meters in depth. Recent archaeological research in PRH has become increasingly reliant on radiocarbon dates from marine shell for developing chronologies. However, this is problematic as the local marine reservoir effect (MRE) remains poorly understood in the region. To account for the MRE and to b

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33

Chalmers, Gareth R. L., and R. Marc Bustin. "Geological evaluation of Halfway–Doig–Montney hybrid gas shale–tight gas reservoir, northeastern British Columbia." Marine and Petroleum Geology 38, no. 1 (2012): 53–72. http://dx.doi.org/10.1016/j.marpetgeo.2012.08.004.

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34

Lyatsky, Henry V., and James W. Haggart. "Petroleum exploration model for the Queen Charlotte Basin area, offshore British Columbia." Canadian Journal of Earth Sciences 30, no. 5 (1993): 918–27. http://dx.doi.org/10.1139/e93-077.

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A potential oil-bearing region lies on the west coast of Canada, in the Queen Charlotte Basin area. Upper Triassic – Lower Jurassic source and Cretaceous reservoir rocks are capped by thick Tertiary volcanic and sedimentary strata. The traps are large block structures, and oil generation and migration took place principally in the Tertiary.Previous hypotheses of Queen Charlotte Basin evolution assumed high regional Tertiary heat flow and large tectonic extension; older rocks would have been overheated, and their oil destroyed. New data largely nullify such an interpretation. Miocene positive t

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35

Egbobawaye, Edwin I. "Petroleum Source-Rock Evaluation and Hydrocarbon Potential in Montney Formation Unconventional Reservoir, Northeastern British Columbia, Canada." Natural Resources 08, no. 11 (2017): 716–56. http://dx.doi.org/10.4236/nr.2017.811045.

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36

Hutchinson, Ian, Thomas S. James, Paula J. Reimer, Brian D. Bornhold, and John J. Clague. "Marine and limnic radiocarbon reservoir corrections for studies of late- and postglacial environments in Georgia Basin and Puget Lowland, British Columbia, Canada and Washington, USA." Quaternary Research 61, no. 2 (2004): 193–203. http://dx.doi.org/10.1016/j.yqres.2003.10.004.

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Models of late-glacial environmental change in coastal areas are commonly based on radiocarbon ages on marine shell and basal lake sediments, both of which may be compromised by reservoir effects. The magnitude of the oceanic reservoir age in the inland waters of the Georgia Basin and Puget Lowland of northwestern North America is inferred from radiocarbon ages on shell-wood pairs in Saanich Inlet and previously published estimates. The weighted mean oceanic reservoir correction in the early and mid Holocene is −720±90 yr, slightly smaller than, but not significantly different from, the modern

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Beaudoin, Georges, D. F. Sangster, and C. I. Godwin. "Isotopic evidence for complex Pb sources in the Ag–Pb–Zn–Au veins of the Kokanee Range, southeastern British Columbia." Canadian Journal of Earth Sciences 29, no. 3 (1992): 418–31. http://dx.doi.org/10.1139/e92-037.

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In the Kokanee Range, more than 370 Ag–Pb–Zn–Au vein and replacement deposits are hosted by the Middle Jurassic Nelson batholith and surrounding Cambrian to Triassic metasedimentary rocks. The Kokanee Range forms the hanging wall of the Slocan Lake Fault, an Eocene, east-dipping, low-angle normal fault. The Pb isotopic compositions of galenas permit the deposits to be divided into four groups that form linear arrays in tridimensional Pb isotopic space, each group having a distinct geographic distribution that crosses geological boundaries. The Kokanee group Pb is derived from a mixture of loca

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Egbobawaye, Edwin I. "Sedimentology and Ichnology of Upper Montney Formation Tight Gas Reservoir, Northeastern British Columbia, Western Canada Sedimentary Basin." International Journal of Geosciences 07, no. 12 (2016): 1357–411. http://dx.doi.org/10.4236/ijg.2016.712099.

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39

Martindale, Andrew, Gordon T. Cook, Iain McKechnie та ін. "ESTIMATING MARINE RESERVOIR EFFECTS IN ARCHAEOLOGICAL CHRONOLOGIES: COMPARING ΔR CALCULATIONS IN PRINCE RUPERT HARBOUR, BRITISH COLUMBIA, CANADA". American Antiquity 83, № 4 (2018): 659–80. http://dx.doi.org/10.1017/aaq.2018.47.

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The best method for quantifying the marine reservoir effect (MRE) using the global IntCal Marine13 calibration curve remains unresolved. Archaeologists frequently quantify uncertainty on MRE values as errors computed from single pairs of marine-terrestrial radiocarbon ages, which we argue significantly overstates their accuracy and precision. Here, we review the assumptions, methods, and applications of estimating MRE via an estimate of the additional regional offset between the marine and terrestrial calibration curves (ΔR) for the Prince Rupert Harbour (PRH) region of British Columbia, Canad

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40

Ching, Hilda Lei. "Occurrence of the eyefluke, Diplostomum (Diplostomum) baeri bucculentum Dubois et Rausch, 1948, in salmonid fishes of northern British Columbia." Canadian Journal of Zoology 63, no. 2 (1985): 396–99. http://dx.doi.org/10.1139/z85-060.

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As a result of experimental infections in chicks, diplostomula found in the retina of chinook salmon from the Nechako River were identified as Diplostomum (Diplostomum) baeri bucculentum. Eyeflukes in other salmonids were considered to be the same species based on similar measurements and site in the eyes. These eyeflukes varied in prevalence and mean intensity in seven salmonid species surveyed in nine localities in 1979–1981. The following fish were sampled: rainbow trout (Salmo gairdneri), 505; mountain whitefish (Prosopium williamsoni), 334; lake whitefish (Coregonus clupeaformis), 32; Dol

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41

McIntyre, Lorraine, Lynn Wilcott, and Monika Naus. "Listeriosis Outbreaks in British Columbia, Canada, Caused by Soft Ripened Cheese Contaminated from Environmental Sources." BioMed Research International 2015 (2015): 1–12. http://dx.doi.org/10.1155/2015/131623.

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Soft ripened cheese (SRC) caused over 130 foodborne illnesses in British Columbia (BC), Canada, during two separate listeriosis outbreaks. Multiple agencies investigated the events that lead to cheese contamination withListeria monocytogenes (L.m.), an environmentally ubiquitous foodborne pathogen. In both outbreaks pasteurized milk and the pasteurization process were ruled out as sources of contamination. In outbreak A, environmental transmission ofL.m.likely occurred from farm animals to personnel to culture solutions used during cheese production. In outbreak B, birds were identified as lik

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Mansour, Mohamed F., C. Derek Martin, and Norbert R. Morgenstern. "Movement behaviour of the Little Chief Slide." Canadian Geotechnical Journal 48, no. 4 (2011): 655–70. http://dx.doi.org/10.1139/t10-091.

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The Little Chief Slide has been extremely slow moving at a rate of 4–14 mm/year since the late 1960s. The 800 million m3 slide lies about 3 km upstream of Mica Dam in British Columbia. The extremely slow rate was not affected by the Mica Dam reservoir filling in the 1970s. Although the Little Chief Slide is classified as a rock slide, the extremely slow movements take place on seams of soft materials composed mainly of micaceous clay gouge. The characteristics of the movement trends with time were investigated at six zones using in-place inclinometers (IPIs). The trends of the movement with th

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Chalmers, Gareth R. L., and R. Marc Bustin. "Light volatile liquid and gas shale reservoir potential of the Cretaceous Shaftesbury Formation in northeastern British Columbia, Canada." AAPG Bulletin 96, no. 7 (2012): 1333–67. http://dx.doi.org/10.1306/10041111041.

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Wood, Mari D. "Seasonal habitat use and movements of woodland caribou in the Omineca Mountains, north central British Columbia, 1991-1993." Rangifer 16, no. 4 (1996): 365. http://dx.doi.org/10.7557/2.16.4.1279.

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From 1991 to 1993, 30 woodland caribou were captured and fitted with radio-collars west of the Williston Reservoir in north central B.C. Monthly radio-telemetry location flights revealed that caribou in the Northern Area, characterized by a complex of mountain ranges, moved greater distances to calving areas than did those in the South, where only one major mountain range exists. In the year of record heavy snowfall for the area, all collared caribou wintered on windswept alpine slopes, while during the below average snowfall year, many caribou remained in forested habitats. In winter, caribou

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Hamlat, Abdelkader, Azeddine Guidoum, and Imen Koulala. "Status and trends of water quality in the Tafna catchment: a comparative study using water quality indices." Journal of Water Reuse and Desalination 7, no. 2 (2016): 228–45. http://dx.doi.org/10.2166/wrd.2016.155.

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Water quality indices (WQIs) are necessary for resolving lengthy, multi-parameter, water analysis reports into single digit scores; different WQIs have been developed worldwide which are greatly differing in terms of mathematical structures, the numbers and types of variables included, etc. The aim of this paper is to evaluate trends of water quality in Tafna basin with a comparison of 10 WQIs perceived as the most important indices for water quality assessment. The results show that there is an appreciable difference between indices values for the same water sample. The results also show that

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Shea, Dylan, Andrew Bateman, Shaorong Li, et al. "Environmental DNA from multiple pathogens is elevated near active Atlantic salmon farms." Proceedings of the Royal Society B: Biological Sciences 287, no. 1937 (2020): 20202010. http://dx.doi.org/10.1098/rspb.2020.2010.

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The spread of infection from reservoir host populations is a key mechanism for disease emergence and extinction risk and is a management concern for salmon aquaculture and fisheries. Using a quantitative environmental DNA methodology, we assessed pathogen environmental DNA in relation to salmon farms in coastal British Columbia, Canada, by testing for 39 species of salmon pathogens (viral, bacterial, and eukaryotic) in 134 marine environmental samples at 58 salmon farm sites (both active and inactive) over 3 years. Environmental DNA from 22 pathogen species was detected 496 times and species v

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Quinlan, S. P., and D. J. Green. "Riparian habitat disturbed by reservoir management does not function as an ecological trap for the Yellow Warbler (Setophaga petechia)." Canadian Journal of Zoology 90, no. 3 (2012): 320–28. http://dx.doi.org/10.1139/z11-138.

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Ecological traps arise when anthropogenic change creates habitat that appears suitable but when selected reduces the fitness of an individual. We evaluated whether riparian habitat within the drawdown zone of the Arrow Lakes Reservoir, British Columbia, creates an ecological trap for Yellow Warblers ( Setophaga petechia (L., 1766)) by investigating habitat preferences and the fitness consequences of habitat selection decisions. Preferences were inferred by examining how habitat variables influenced settlement order, and comparing habitat at nest sites and random locations. Males preferred to s

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ARAMINI, J. J., C. STEPHEN, J. P. DUBEY, C. ENGELSTOFT, H. SCHWANTJE, and C. S. RIBBLE. "Potential contamination of drinking water with Toxoplasma gondii oocysts." Epidemiology and Infection 122, no. 2 (1999): 305–15. http://dx.doi.org/10.1017/s0950268899002113.

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The world's first documented toxoplasmosis outbreak associated with a municipal water supply was recognized in 1995 in Victoria, British Columbia, Canada. It was hypothesized that domestic cat (Felis catus) or cougar (Felis concolor) faeces contaminated a surface water reservoir with Toxoplasma gondii oocysts. An extensive investigation of the Victoria watershed 1 year following the outbreak documented the presence of an endemic T. gondii cycle involving the animals inhabiting the area. Cats and cougars were observed throughout the watershed. Serological evidence of T. gondii infection was dem

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Falardeau, Justin, Khalil Walji, Maxime Haure, et al. "Native bacterial communities and Listeria monocytogenes survival in soils collected from the Lower Mainland of British Columbia, Canada." Canadian Journal of Microbiology 64, no. 10 (2018): 695–705. http://dx.doi.org/10.1139/cjm-2018-0115.

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Soil is an important reservoir for Listeria monocytogenes, a foodborne pathogen implicated in numerous produce-related outbreaks. Our objectives were to (i) compare the survival of L. monocytogenes among three soils, (ii) compare the native bacterial communities across these soils, and (iii) investigate relationships between L. monocytogenes survival, native bacterial communities, and soil properties. Listeria spp. populations were monitored on PALCAM agar in three soils inoculated with L. monocytogenes (∼5 × 106 CFU/g): conventionally farmed (CS), grassland transitioning to conventionally far

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Hanna, Alfred W., Howard D. Plewes, Raymond Wong, and William C. Seyers. "Investigations of high uplift pressures beneath a concrete dam." Canadian Geotechnical Journal 30, no. 6 (1993): 974–90. http://dx.doi.org/10.1139/t93-095.

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Deficiency investigations were undertaken at Hugh Keenleyside Dam, near Castlegar, British Columbia, to identify the nature and sources of foundation defects responsible for high uplift pressures under a section of the concrete dam. Several techniques employed in the investigations proved particularly useful in delineating the defects. These were temperature surveys and chemical analysis of flows from pressure instruments and foundation drains, air-injection tests, foundation coring and installation of additional piezometers. A comprehensive program of pressure response testing of cells, piezo

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