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Estimating naphthenic acids concentrations in laboratory-exposed fish and in fish from the wild


Year: 2008

Abstract:
Naphthenic acids (NAs) are the most water-soluble organic components found in the Athabasca oil sands in Alberta, Canada, and these acids are released into aqueous tailing waters as a result of bitumen extraction. Although the toxicity of NAs to fish is well known, there has been no method available to estimate NAs concentrations in fish. This paper describes a newly developed analytical method using single ion monitoring gas chromatography–mass spectrometry (GC–MS) to measure NAs in fish, down to concentrations of ∼0.1 mg kg−1 of fish flesh. This method was used to measure the uptake and depuration of commercial NAs in laboratory experiments. Exposure of rainbow trout (Oncorhynchus mykiss) to 3 mg NAs l−1 for 9 d gave a bioconcentration factor of ∼2 at pH 8.2. Within 1 d after the fish were transferred to NAs-free water, about 95% of the NAs were depurated. In addition, the analytical method was used to determine if NAs were present in four species of wild fish – northern pike (Esox lucius), lake whitefish (Coregonus clupeaformis), white sucker (Catostomus commersoni), walleye (Sander vitreus) – collected from near the oil sands. Flesh samples from 23 wild fish were analyzed, and 18 of these had no detectable NAs. Four fish (one of each species) contained NAs at concentrations from 0.2 to 2.8 mg kg−1. The GC–MS results from one wild fish presented a unique problem. However, with additional work it was concluded that the NAs concentration in this fish was <0.1 mg kg−1.

Evaluation of the dermal carcinogenic potential of liquids produced from the Cold Lake heavy oil deposits of northeast Alberta


Author(s): McKee, R. H., & Lewis S. C.

Year: 1987

Abstract:
This study assessed the dermal carcinogenic potential of raw bitumen derived from the Cold Lake Oil Sands deposit (located in Northeast Alberta, Canada) and two liquids which were under evaluation as part of a process tad refine the crude bitumen at the Cold Lake site. The crude bitumen was dermally carcinogenic, inducing tumors in 2606 of the treated animals with a median latency of 106 weeks. This response was significantly greater than the tumor yield previously reported for a raw bitumen derived from Athabasca tar sands by the Syncrude process, but was not substantially different from the carcinogenic potential of two crude petroleum oils. The GO-FINING product, a high boiling (259-5 19"C), catalytically cracked gas oil was a relatively potent dermal carcinogen, inducing tumors in 86% of the treated animals with a median latency of 46 weeks. This result is consistent with the fact that the GO-FINHNG product contained appreciable levels of high boiling aromatic compounds. The HYCRACK- ING product, a high boiling (102-498"C), severely hydroprocessed liquid was noncarcinogenic. This result was also consistent with the compositional data; the high boiling components were predominantly saturated species. Thus the carcinogenic properties of the liquid products prepared by these two processes were as predicted from the compositional information.

Existing and historical water monitoring in the Phase 2 Geographic Expansion Area to 2011


Year: 2011

Abstract:
This report, Phase 2 Component 2, is a bibliographic compilation of water-related monitoring programs and activities in the Expanded Geographic Extent prior to the implementation of the Integrated Monitoring Plan for the Oil Sands (Environment Canada and Alberta Environment 2011c). It comprises an information table of parameters sampled by the most relevant ongoing and historical programs and activities, annotated abstracts and descriptions of relevant programs and studies, notes on particularly relevant organizations, and maps of monitoring locations and other information, up to July 2011. This document is a bibliographic tool for locating sources of water quality information, providing a general roadmap to "who has measured what, when, and where?" within the Expanded Geographic Extent. It was not intended to collect or contain data. Although Component 2 was originally designed to cover only water quality and quantity (as in Phase 1), it was expanded to include readily accessible information on fish programs and benthic invertebrate monitoring in the Expanded Geographic Extent. The most important tool in this document is Appendix 1, which includes specific information on parameters sampled by the major monitoring programs and other activities in the Expanded Geographic Extent region up to July 2011.

Experimental and numerical investigation of the Fast-SAGD process


Author(s): Shin, H.

Year: 2006

Abstract:
The SAGD process has been tested in the field, and is now in a commercial stage in Western Canadian oil sands areas. The Fast-SAGD method can partly solve the drilling difficulty and reduce costs in a SAGD operation requiring paired parallel wells one above the other. This method also enhances the thermal efficiency in the reservoir. In this research, the reservoir parameters and operating conditions for the SAGD and Fast-SAGD processes are investigated by numerical simulation in the three Alberta oil sands areas. Scaled physical model experiments, which are operated by an automated process control system, are conducted under high temperature and high pressure conditions. The results of the study indicate that the shallow Athabasca-type reservoir, which is thick with high permeability (high k×h), is a good candidate for SAGD application, whereas Cold Lake- and Peace River-type reservoirs, which are thin with low permeability, are not as good candidates for conventional SAGD implementation. The simulation results indicate improved energy efficiency and productivity in most cases for the Fast-SAGD process; in those cases, the project economics were enhanced compared to the SAGD process. Both Cold Lake- and Peace River-type reservoirs are good candidates for a Fast-SAGD application rather than a conventional SAGD application. This new process demonstrates improved efficiency and lower costs for extracting heavy oil from these important reservoirs. A new economic indicator, called simple thermal efficiency parameter (STEP), was developed and validated to evaluate the performance of a SAGD project. STEP is based on cumulative steam-oil ratio (CSOR), calendar day oil rate (CDOR) and recovery factor (RF) for the time prior to the steam-oil ratio (SOR) attaining 4. STEP can be used as a financial metric quantitatively as well as qualitatively for this type of thermal project. An automated process control system was set-up and validated, and has the capability of controlling and handling steam injection processes like the steam-assisted gravity drainage process. The results of these preliminary experiments showed the overall cumulative oil production to be larger in the Fast-SAGD case, but end-point CSOR to be lower in the SAGD case. History matching results indicated that the steam quality was as low as 0.3 in the SAGD experiments, and even lower in the Fast-SAGD experiments after starting the CSS.

Citation:

Experimental assessment of Athabasca River cohesive sediment deposition dynamics


Year: 2011

Abstract:
Polycyclic aromatic hydrocarbons (PAHs) originating from natural sources, and potentially from the Athabasca Oil Sands development, are of concern for the Athabasca River and Lake Athabasca delta ecosystems. In order to model the transport of fine sediments (and associated PAHs), it is important to describe the sediment dynamics within the river system. Flocs possess different settling characteristics compared to individual particles. A key aspect in modelling floc settling behaviour is the mathematical linkage of the floc density to floc size. In this paper, a rotating annular flume is used to determine the settling characteristics of Muskeg River (a tributary of the Athabasca River) sediments under different shear conditions. Simulations of the settling and flocculation behaviour of these sediments were used to calibrate a density vs. floc size model. A relationship of the parameters relating floc size and density with the fractal dimension F shows that as diameter increases flocs become weaker. Recommendations for the practical application of the model are further formulated in this paper. The deposition tests offer a quantitative measure of the relative amount of sediment that is likely to be transported through the river for given flow conditions. Experimental assessment of Athabasca River cohesive sediment deposition dynamics. Available from: https://www.researchgate.net/publication/257408565_Experimental_assessment_of_Athabasca_River_cohesive_sediment_deposition_dynamics [accessed Dec 18, 2015].

Extraction of energy resources - exploitation of the Canadian oil sands


Author(s): Zhang, W.

Year: 2014

Abstract:
Considerable reserves of oil sands are located in northern Alberta. Exploitation of these reserves has been instrumental in the development of the Alberta economy. Mining and processing tech- niques, including “in situ” processing and surface mining/aqueous treatment, are presented. Oil assisted flotation and solvent extraction are discussed as possible future processing alternatives. Subsequent froth treatment and refining methods are described. The rapid expansion of bitumen processing in the Fort McMurray area has drastically affected Alberta’s economic, political and so- cial policy. Corresponding strain has been placed on the regional ecosystem. A comparison be- tween wind and bitumen as sources of energy is offered.

Fall fisheries investigation in the Athabasca and Clearwater rivers upstream of Fort McMurray Vol I


Year: 1978

Abstract:
Fisheries investigations were undertaken in the Athabasca and Clearwater rivers upstream of Fort McMurray in the fall of 1977. The major emphasis of these studies was to delineate actual and potential spawning areas for lake whitefish in the Athabasca and Clearwater rivers. Lake whitefish were found to spawn during mid-October in the mainstem of the Athabasca River from Fort McMurray upstream to Cascade Rapids, a distance of approximately 32 km. The major concentrations of spawning lake whitefish were immediately below Mountain Rapids (24 km upstream of Fort McMurray). There was no evidence of lake whitefish spawning in the Clearwater River. Spawning generally occurred in fast water over broken rock, rubble, and coarse gravel substrates. While recaptures were insufficient to calculate a population estimate by scientific means, the spawning population is large, certainly numbering tens of thousands of fish. Post-spawning tag returns indicate that the lake whitefish spawners moved downstream immediately after spawning, returning to the Peace-Athabasca Delta. The Athabasca River upstream of Fort McMurray provides critical spawning habitat for lake whitefish. Other important fish species, including goldeye, longnose sucker, walleye, and northern pike, also occur in the project study area.

Fall fisheries investigations in the Athabasca and Clearwater Rivers upstream of Fort McMurray. Vol I. Results, discussions and conclusions


Year: 1978

Abstract:
Fisheries investigations were undertaken in the Athabasca and Clearwater rivers upstream of Fort McMurray in the fall of 1977. The major emphasis of these studies was to delineate actual and potential spawning areas for lake whitefish in the Athabasca and Clearwater rivers. Lake whitefish were found to spawn during mid-October in the mainstem of the Athabasca River from Fort McMurray upstream to Cascade Rapids, a distance of approximately 32 km. The major concentrations of spawning lake whitefish were immediately below Mountain Rapids (24 km upstream of Fort McMurray). There was no evidence of lake whitefish spawning in the Clearwater River. Spawning generally occurred in fast water over broken rock, rubble, and coarse gravel substrates. While recaptures were insufficient to calculate a population estimate by scientific means, the spawning population is large, certainly numbering tens of thousands of fish. Post-spawning tag returns indicate that the lake whitefish spawners moved downstream immediately after spawning, returning to the Peace-Athabasca Delta. The Athabasca River upstream of Fort McMurray provides critical spawning habitat for lake whitefish. Other important fish species, including goldeye, longnose sucker, walleye, and northern pike, also occur in the project study area.

Fall fisheries investigations in the Athabasca and Clearwater Rivers upstream of Fort McMurray. Vol II


Year: 1978

Abstract:
Report of study to document importance of Athabasca and Clearwater rivers, relative to Lake Athabasca, to fall spawning lake whitefish populations. Intended to investigate impact of Athabasca Oil Sands development activities on migrating fish populations of the Athabasca River system.

Fall fisheries investigations in the Athabasca and Clearwater Rivers upstream of Fort McMurray: Volume I


Year: 1978

Abstract:
Fisheries investigations were undertaken in the Athabasca and Clearwater rivers upstream of Fort McMurray in the fall of 1977. The major emphasis of these studies was to delineate actual and potential spawning areas for lake whitefish in the Athabasca and Clearwater rivers. Lake whitefish were found to spawn during mid-October in the mainstem of the Athabasca River from Fort McMurray upstream to Cascade Rapids, a distance of approximately 32 km. The major concentrations of spawning lake whitefish were immediately below Mountain Rapids (24 km upstream of Fort McMurray). There was no evidence of lake whitefish spawning in the Clearwater River. Spawning generally occurred in fast water over broken rock, rubble, and coarse gravel substrates. While recaptures were insufficient to calculate a population estimate by scientific means, the spawning population is large, certainly numbering tens of thousands of fish. Post-spawning tag returns indicate that the lake whitefish spawners moved downstream immediately after spawning, returning to the Peace-Athabasca Delta. The Athabasca River upstream of Fort McMurray provides critical spawning habitat for lake whitefish. Other important fish species, including goldeye, longnose sucker, walleye, and northern pike, also occur in the project study area.

Fathead minnow (Pimephales promelas) reproduction is impaired in aged oil sands process-affected waters


Year: 2011

Abstract:
Large volumes of fluid tailings are generated during the extraction of bitumen from oil sands. As part of their reclamation plan, oil sands operators in Alberta propose to transfer these fluid tailings to end pit lakes and, over time, these are expected to develop lake habitats with productive capabilities comparable to natural lakes in the region. This study evaluates the potential impact of various oil sands process-affected waters (OSPW) on the reproduction of adult fathead minnow (Pimephales promelas) under laboratory conditions. Two separate assays with aged OPSW (>15 years) from the experimental ponds at Syncrude Canada Ltd. showed that water containing high concentrations of naphthenic acids (NAs; >25 mg/l) and elevated conductivity (>2000 μS/cm) completely inhibited spawning of fathead minnows and reduced male secondary sexual characteristics. Measurement of plasma sex steroid levels showed that male fathead minnows had lower concentrations of testosterone and 11-ketotestosterone whereas females had lower concentrations of 17β-estradiol. In a third assay, fathead minnows were first acclimated to the higher salinity conditions typical of OSPW for several weeks and then exposed to aged OSPW from Suncor Energy Inc. (NAs ∼40 mg/l and conductivity ∼2000 μS/cm). Spawning was significantly reduced in fathead minnows held in this effluent and male fathead minnows had lower concentrations of testosterone and 11-ketotestosterone. Collectively, these studies demonstrate that aged OSPW has the potential to negatively affect the reproductive physiology of fathead minnows and suggest that aquatic habitats with high NAs concentrations (>25 mg/l) and conductivities (>2000 μS/cm) would not be conducive for successful fish reproduction.

Fawcett Lake lakeshore management plan


Year: 1990

Abstract:
The economic planning and resource development committee of Cabinet approved the Big Bend Sub-regional Integrated Resource Plan on June 19, 1985. This plan identified resource potential and development opportunities within specific resource management areas. The North Athabasca Resource Management Area, in the northern end of the Big Bend planning area, was designated "to provide localised nodal recreational developments catering to a variety of water-oriented uses at Fawcett Lake".

Feasibility study - Athabasca River basins : report - 3B - Slave Lake


Year: 2014

Abstract:
The primary purpose of the feasibility study is to develop a water (floodplain) management plan for the flood affected areas within the Athabasca Basins based on a benefit/cost analysis of identified flood mitigation measures.

Feasibility study - Athabasca River basins : report - Appendix F - Structural mitigation options : Slave Lake


Year: 2014

Abstract:
The primary purpose of the feasibility study is to develop a water (floodplain) management plan for the flood affected areas within the Athabasca Basins based on a benefit/cost analysis of identified flood mitigation measures.

Field evaluation of an erosion hazard assessment system in west central Alberta


Year: 1987

Abstract:
This thesis examines the environmental history of the industrial transformation on the large lakes of Northwest Canada, Winnipeg, Athabasca, Great Slave, and Great Bear between 1921 and 1960. Using corporate and personal records, government documents, published scientific reports and oral history collections, it reconstructs patterns of industrial activity, relationships between these activities and local ecosystems, and environmental consequences. Touching on the history of the north, ecological colonization, the politics of resource development, and relationships between Natives and Newcomers the argument builds on two main threads of historiography: the place of industrial humans in nature and the role of twentieth-century science in shaping engagements with the natural world. This study traces the development of mining, fishing, and transportation industries on the large lakes and their surrounding environment. This Subarctic development was a Canadian manifestation of international industrial transformations that sought increasingly remote resources for the production of goods destined to capitalist markets. I examined this transformation by asking what happens to nature (organisms, including humans, in relationship with their environment) as a result of twentieth-century industrialization (high-energy fuels, especially fossil fuels, and mechanical technologies applied to production)? I argue that industrialization remained embedded in and dependent upon local ecosystems. Mining, elsewhere seen to exemplify the destructive and inorganic character of industry, integrated its operations with the physical world, extended habitable environments underground, and modelled its work on natural and human metabolism. Where ties to the physical world weakened in this period, it was as a direct result of the commodification of natural resources and how these were processed into goods for distant markets. Scientists played a major role in guiding industrial mining and fishing operations, with provincial and federal governments granting scientists authority to ensure fisheries conservation. The industrial transformation in this period carries the imprint of how these scientists imagined the natural world and the unintended consequences to lake ecosystems of these models.

First Nations from across North America take part in fifth and final Healing Walk in Fort McMurray


Year: 2014

Abstract:
FORT MCMURRAY, AB, June 28, 2014 /CNW/ - First Nations from across North America took part today in the fifth and final Healing Walk in Fort McMurray, Alberta, an annual event that organizers say has achieved its ultimate purpose of building unity and alliances among First Nations impacted by tar sands development in Canada and the United States. Fort McMurray, the centre of tar sands development, was once traditional hunting, fishing and gathering grounds. The walk offered healing prayers to the land and to build strength and unity among people impacted by tar sands development. "First Nations communities were once scared to share their stories about tar sands impacts, but the Healing Walk has been a safe place to share knowledge so that today First Nations are stronger than ever to fight tar sands development across North America," said Eriel Deranger, of the Athabasca Chipewyan First Nation.

Fish radio telemetry demonstration project, upper Athabasca River, May to August, 1992


Author(s): McLeod, C., & Clayton T.

Year: 1993

Abstract:
Report of a fish radio telemetry demonstration project carried out on the upper reaches of the Athabasca River, central Alberta, in spring and summer 1992. The objective was to describe and implement a technical assessment of underwater radio telemetry using several fish species (bull trout, mountain whitefish, burbot, rainbow trout, arctic grayling and lake whitefish).

Fisheries and habitat investigations of tributary streams in the southern portion of the AOSERP study area: Volume II


Author(s): Tripp, D. B., & Tsui P. T. P.

Year: 1980

Abstract:
This report presents the results of studies conducted from May to October 1978 on tributary streams in the southern portion of the AOSERP study area. The major objectives of these investigations were: 1. To describe the baseline states of the major components of the aquatic ecosystems in the southern portion of the AOSERP study area; 2. To describe, in detail, aquatic habitats of the southern portion of the AOSERP study area; and 3. To provide a quantitative estimate of the biological significance of the watersheds to the Athabasca River system. Three streams, the Christina, Gregoire, and Hangingstone, were selected for detailed study and were examined in early and late spring, late summer, and late autumn. Together, these three streams are representative of most of the major stream habitat types occurring within the project study area. Other waterbodies were sampled once only during late summer. This report consists of two volumes. Volume I is an explanatory text complete with summary tables and maps, while Volume II contains benthic macroinvertebrate and fish catch data.

Fishery resources of the Athabasca River downstream of Fort McMurray, Alberta. Volume I


Author(s): Bond, W. A.

Year: 1980

Abstract:
Central to the surface water system of the Athabasca Oil Sands region is the Athabasca River. This large river connects the Lake Athabasca fisheries with virtually all tributary rivers in the oil sands region. Thus, an adequate description of the fishery resources of this river was sought at the beginning of the Alberta Oil Sands Environmental Research Program. Investigation of the fishery resources of the Athabasca River downstream of Fort McMurray to the Athabasca Delta was an early component of a broadly based program designed to describe the baseline states of this resource throughout the oil sands area. The study of this portion of the river took place during the open water seasons of 1976 and 1977. Specific objectives of this project can be found in the Introduction. The reader is referred to AOSERP Reports 36 and 84 for work on the Athabasca River upstream of Fort McMurray.

Fishery resources of the Athabasca River downstream of Fort McMurray, Alberta. Volume II


Author(s): Bond, W. A., & Berry D. K.

Year: 1980

Abstract:
Central to the surface water system of the Athabasca Oil Sands region is the Athabasca River. This large river connects the Lake Athabasca fisheries with virtually all tributary rivers in the oil sands region. Thus, an adequate description of the fishery resources of this river was sought at the beginning of the Alberta Oil Sands Environmental Research Program. Investigation of the fishery resources of the Athabasca River downstream of Fort McMurray to the Athabasca Delta was an early component of a broadly based program designed to describe the baseline states of this resource throughout the oil sands area. The study of this portion of the river took place during the open water seasons of 1976 and 1977. Specific objectives of this project can be found in the Introduction. The reader is referred to AOSERP Reports 36 and 84 for work on the Athabasca River upstream of Fort McMurray.

Fishery resources of the Athabasca River downstream of Fort McMurray, Alberta. Volume III


Author(s): Bond, W. A., & Berry D. K.

Year: 1980

Abstract:
Central to the surface water system of the Athabasca Oil Sands region is the Athabasca River. This large river connects the Lake Athabasca fisheries with virtually all tributary rivers in the oil sands region. Thus, an adequate description of the fishery resources of this river was sought at the beginning of the Alberta Oil Sands Environmental Research Program. Investigation of the fishery resources of the Athabasca River downstream of Fort McMurray to the Athabasca Delta was an early component of a broadly based program designed to describe the baseline states of this resource throughout the oil sands area. The study of this portion of the river took place during the open water seasons of 1976 and 1977. Specific objectives of this project can be found in the Introduction. The reader is referred to AOSERP Reports 36 and 84 for work on the Athabasca River upstream of Fort McMurray.

Fishes from the Lower Triassic portion of the Sulphur Mountain Formation in Alberta, Canada: Geological context and taxonomic composition


Author(s): Neuman, A. G., & Therrien F.

Year: 2015

Abstract:
The Sulphur Mountain Formation in Alberta, Canada, comprises shales, siltstones, and limestones laid down on the continental shelf and shoreline along the western margin of the North American Craton during the Early and Middle Triassic. At least 13 taxa of fossil marine fishes have been found at a number of Triassic localities along the Front Ranges and foothills in Alberta. Common taxa (Boreosomus, Birgeria, Bobasatrania, Australosomus, Saurichthys, parasemionotids, and coelacanths) found at localities in Alberta are similar to those found at the classic Lower and Middle Triassic localities near Wapiti Lake, British Columbia, and in East Greenland, Spitzbergen, Madagascar, and China. The occurrence of Lower Triassic fishes in western Alberta shows that this fauna was widespread, occurring over at least 1000 km of shoreline, and that ecological and environmental factors were similar along the western edge of the Panthalassic Ocean during the Early Triassic.

Fluid events associated with gold, uranium, and REE deposits in the Proterozoic of northern Saskatchewan, Canada


Author(s): Fayek, M.

Year: 1996

Abstract:
The Contact Lake lode gold deposit is situated in northern Saskatchewan within the Proterozoic La Ronge Domain of the Trans-Hudson Orogen ($\sim$1.9-1.7 Ga). The deposit is associated with a high angle, reverse shear zone, which crosscuts the central granitic and granodioritic phases of the composite Little Deer Lake pluton. Four temporally distinct stages of veining within the shear zone have been identified on the basis of mineralogical, textural and crosscutting relationships. The four discernable vein types (two devoid of gold and two containing gold mineralization) permit the detailed study of fluids responsible for gold mineralization versus barren fluids, which is critical to gold exploration. High grade gold mineralization is related to stage IV veins. The interaction between the auriferous stage IV vein fluid and the granitic and granodioritic phases of the pluton produced distinct alteration mineral assemblages. The Proterozoic Athabasca Basin in northern Saskatchewan, Canada, hosts several of the largest and richest uranium deposits in the world. The uranium deposits occur at the intersection between Hudsonian-age faults and the unconformity between Athabasca Group sandstones and Aphebian metasediments and Archean gneisses. Uranium mineralization formed at ca. 200°C from the mixing between the oxidizing, uranium bearing basinal brine and the reducing basement fluid which issued along the faults. High concentrations of REE-rich phosphates are associated with uranium mineralization in the Athabasca Basin. The relations among REE-rich minerals, diagenetic clays and uranium mineralization in the basin and basement rocks indicate extensive REE mobility during diagenesis of the Athabasca Basin. The REEs and U most likely were derived from detrital fluor-apatite and zircon in the sandstone, and garnets in the basement rocks. These relations indicate that REEs, and possibly the uranium, were transported as F-complexes. The three stages of ore formation and associ

Food habits of mink (Mustela vison) and otter (Lutra canadensis) in northeastern Alberta


Author(s): Gilbert, F. F.

Year: 1982

Abstract:
Scats of mink (Mustela vison) and otter (Lutra cawdensis) in northeastern Alberta contained different food items in different habitat types according to type of water body. Brook stickleback (Culaea inconstans) was the most frequently encountered food item in scats of both species from a drainage system dominated by lakes and for otter from a second drainage system dominated by streams. However, mink had varying hare (Lepusamericanus) as their primary food item by frequency of occurrencein this latter situation and mammalian items were significantly ( P < 0.01) more frequent. Otter scats contained more fish and invertebrates ( P < 0.01) and fewer mammals ( P < 0.01) and birds ( P < 0.05) than mink scats. Both otters and mink appeared to exploit avian species to a greater degree ( P < 0.01) in the lake-dominated drainage. The frequency of avain remains in otter scats was very high and probably reflected high utilization of breeding and moulting waterfowl.

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