WorldCat Identities

Cultus Lake Research Laboratory

Overview
Works: 43 works in 97 publications in 1 language and 780 library holdings
Classifications: SH223, 333.95
Publication Timeline
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Most widely held works by Cultus Lake Research Laboratory
Pelagic fish surveys of 20 lakes in northern British Columbia from 2006 to 2009 by S. G MacLellan( )
4 editions published in 2011 in English and held by 61 WorldCat member libraries worldwide
We conducted pelagic fish surveys using hydroacoustics, midwater trawls and small mesh gillnets in 20 sockeye (Oncorhynchus nerka) rearing lakes in the Nass and Skeena river systems and in the north and central coast regions of British Columbia. We present the results in relation to lake water type and provide detailed results for each lake. We detected differences in vertical distribution, species composition and diet between clear, stained and glacially turbid lakes. Clear lakes had the most diverse pelagic fish community but age-0 O. nerka (mostly sockeye) were the most common species found. Glacially turbid lakes had far fewer species and age-0 O. nerka were the most common. Threespine stickleback (Gasterosteus aculeatus) and age-0 O. nerka were the dominant species in the stained lakes. Daphnia were the dominant prey item of age-0 O. nerka in clear lakes while Bosmina dominated in the diets in stained lakes. Copepods and terrestrial insects were the most common prey items in glacially turbid lakes
Track-mounted carriage system for deployment of hydroacoustic transducers in riverine environments by H. J Enzenhofer( )
2 editions published in 2011 in English and held by 53 WorldCat member libraries worldwide
An evaluation of methods used by the freshwater ecosystems section for pelagic fish surveys of sockeye rearing lakes in British Columbia by S. G MacLellan( )
4 editions published in 2010 in English and held by 50 WorldCat member libraries worldwide
This paper describes the methods currently in use within the Freshwater Ecosystem Section of Fisheries and Oceans Canada (DFO) to conduct pelagic fish surveys of juvenile sockeye rearing lakes. The authors use data from Hume and MacLellan 2008 and additional data in their databases to compare and discuss some of the advantages and problems with the current methodology. This paper starts with a detailed description of the current methods used in conducting a survey and then is followed by a description of the methods used in a number of comparative studies.--Includes text from document
Limnology of Cultus Lake, British Columbia by K. R. S Shortreed( Book )
2 editions published in 2007 in English and held by 43 WorldCat member libraries worldwide
Cultus Lake is located in British Columbia's eastern Fraser Valley, approximately 10 km south of the city of Chilliwack. The lake and its surrounding drainage basin are heavily utilized residential/recreational areas. This document describes a limnology study conducted at Cultus Lake. Limnological data were collected once monthly from April to November 2001, and from January to December of 2002. In 2003, the lake was sample four times (January to March and August). The further chemical analysis of data were carried out. Results of the analysis are discussed in the following fields: physics, chemistry, stream chemistry, metals, bacteria and phytoplankton, zooplankton, rearing capacity, quality of Cultus Lake rearing environment, current and past productivity.--Includes text from document
Reconstructing the summer thermal history for the lower Fraser River, 1941 to 2006, and implications for adult sockeye salmon (Oncorhynchus nerka) spawning migration ( Book )
3 editions published in 2007 in English and held by 42 WorldCat member libraries worldwide
An extensive amount of water temperature data has been collected from the Fraser River since the 1940s. Temperature records are primarily from the Fraser River at Hells Gate; but many other lower river locations have been monitored. The objective of this study was to create a complete dataset of the Fraser River daily mean temperatures between June 1st and September 30th for 1941-2006 at Hells Gate. The study compared data collected at Hells Gate with datasets from nearby locations to identify which locations would provide reasonable surrogate data for missing values in the Hells Gate dataset. After verification, all data were ranked based on quality, and a near complete Hells Gate dataset was reconstructed using the most suitable data.--Document
Pelagic fish surveys of 23 sockeye rearing lakes in the Skeena River system in the northern British Columbia coastal watersheds from 1997 to 2005 by Jeremy M. B Hume( Book )
2 editions published in 2008 in English and held by 41 WorldCat member libraries worldwide
This paper reports on pelagic fish surveys conducted between 1997 and 2005 using hydroacoustics, midwater trawls and small mesh gillnets in 23 sockeye (Oncorhynchus nerka) rearing lakes in the Skeena River and north and central coast regions of British Columbia. The authors present the results in relation to lake water type and provide detailed results for each lake.--Includes text from document
Abundance and migratory behaviour of northern pikeminnow (Ptychocheilus oregonensis) in Cultus Lake, British Columbia and implications for predator control ( Book )
2 editions published in 2007 in English and held by 40 WorldCat member libraries worldwide
The northern pikeminnow (Ptychocheilus oregonensis) has long been identified as a potential predator of sockeye salmon (Oncorhynchus nerka) in Cultus Lake, British Columbia. Declines in the abundance of sockeye salmon in Cultus Lake have stimulated interest in the use of predator control programs to increase juvenile salmon survival in the lake. This study estimates the abundance of adult pikeminnow in Cultus Lake using mark-recapture methods. The document reports the study and presents the results.--Includes text from document
Preliminary categorization of the productivity of 37 coastal and Skeena River system lakes in British Columbia by K. R. S Shortreed( Book )
2 editions published in 2007 in English and held by 40 WorldCat member libraries worldwide
A limnological survey of 37 lakes was carried out in British Columbia's north coast and Skeena River system. The objectives of this study was to collect limnological data which could be used to describe the lakes' physical, chemical, and biological environments; to categorize the lakes' current tropic status; and to provide a first estimate of the lakes' rearing capacity for juvenile sockeye. This report presents the data and discusses the results.--Includes text from document
Application of DIDSON imaging sonar at Qualark Creek on the Fraser River for enumeration of adult Pacific salmon : an operational manual by H. J Enzenhofer( )
3 editions published in 2010 in English and held by 39 WorldCat member libraries worldwide
The aim of this manual is to provide a summary for development of a fixed-location acoustic site for estimating fish passage in a river using imaging sonar equipment. This summary includes the procedures specific to the Qualark Creek acoustic site on the Fraser River near Yale, British Columbia, Canada, but many of these procedures can be generalised to any suitable riverine acoustic site. The DIDSON imaging acoustic system was used in 2008 and 2009 at the Qualark Creek site to enumerate migrating salmon. The authors describe the specialised in-river equipment and modifications to the site to make it favourable for acoustic sampling, together with costs for performing the modifications. Deflection weirs and other equipment are described as are data analysis procedures.--Includes text from document
Depth and thermal histories of adult sockeye salmon (Oncorhynchus nerka) in Cultus Lake in 2006 and 2007 ( )
3 editions published in 2010 in English and held by 38 WorldCat member libraries worldwide
"Adult sockeye returning to Cultus Lake in 2006 and 2007 were fitted with intragastric acoustic tags equipped with depth sensors, and tracked throughout their residency in Cultus Lake. Thermal depth profiles of Cultus Lake were matched with the recorded depths of sockeye in order to estimate their thermal histories. These data were analysed in order to address the following objectives: (i) to examine in detail the depth and thermal behaviour of sockeye salmon within the lake, including temporal trends, (ii) to identify potential locations used for spawning, and (iii) to examine the relationship between lake entry timing and pre-spawning mortality."--Document
Telescopic weir for fisheries applications by H. J Enzenhofer( Book )
3 editions published in 2010 in English and held by 37 WorldCat member libraries worldwide
This report describes and illustrates the design, construction and installation of a telescopic weir that can be used to divert migrating fish to areas where they can be observed. The sectional telescopic design means that this weir can be deployed from a fully retracted length of 3m to a fully extended length of 10 m. The entire weir can be transported as a single load in a pick-up truck and can be installed by two people wading or by two people in a boat, in 4 hours. After the duration of deployment, the removed weir leaves minimal disturbance, which is an important feature in environmentally sensitive areas. The report includes costs in Canadian dollars (2009) for the complete weir components.--Document
Power supply system for remote site application ( Book )
1 edition published in 2007 in English and held by 37 WorldCat member libraries worldwide
Operating electronic equipment in remote locations requires a dependable source of electricity for sustained periods. This report describes the design, construction, assembly and deployment of a power supply system for use in sites remote from electrical utility lines.--Document
Life history characteristics of freshwater fishes occurring in British Columbia and the Yukon, with major emphasis on stream habitat characteristics by Marlene Helene Marie Roberge( )
3 editions published in 2002 in English and held by 34 WorldCat member libraries worldwide
Associations between stream characteristics and different life history stages of fish were summarized for the 86 species and 13 additional subspecies and forms of freshwater fish that exist in British Columbia and the Yukon. Of the 99 freshwater species/subspecies, all but six occur in streams during part of their life cycle. Four habitat characteristics were summarized (depth, substrate type, cover type, and flow type) for four life cycle stages (spawning, young-of-the-year, juvenile and adult). Overall, there is a general lack of information pertaining to the stream habitat requirements for the many fish species that are found in BC and Yukon. In particular, research and information on stream habitat requirements is lacking for green sturgeon, minnows, smelts, ciscos, suckers, sculpin, lamprey, and stickleback
Evaluation of restoration efforts on the 1996 Upper Adams River sockeye salmon run ( Book )
1 edition published in 2003 in English and held by 29 WorldCat member libraries worldwide
An assessment of the juvenile sockeye salmon (Oncorhynchus nerka) populations of Babine Lake by Jeremy M. B Hume( Book )
5 editions published in 2000 in English and held by 24 WorldCat member libraries worldwide
Juvenile sockeye salmon (Oncorhynchus nerka) rearing in Babine Lake were re-examined 22 years after the initiation of the Babine Lake Development Project (BLDP). Abundance, distribution, size, and species composition of the limnetic fish populations, including juvenile sockeye salmon, were determined by hydroacoustic and midwater trawl surveys in the autumn of 1993 and the summer and fall of 1994 and 1995 and compared to results collected before and shortly after the start of the BDLP. Our objectives were to look for: 1) changes in the abundance of juvenile sockeye relative to spawning numbers; 2) changes in the utilization of the available nursery area; and 3) the effects of increased population size and density on the size and growth of juvenile sockeye. Abundance of fall sockeye fry ranged from 52.0·10⁶ (1,400 fry/ha) in the fall of 1993 to ~16.5 ·10⁶ (455 fry/ha) in the autumns of 1994 and 1995. While the acoustic estimates appeared to be valid estimates of abundance, they were considerably lower than the smolt estimates from the same brood years. The dispersal and subsequent distribution of juvenile sockeye fry was similar to that found in the years before and immediately after the start of the BLDP. The size and growth rate of juvenile sockeye was similar to the earlier years and did not vary with density over the ranges studied. Our study found that Babine Lake has not reached nor exceeded its rearing capacity for juvenile sockeye salmon
An assessment of the limnological status and productive capacity of Babine Lake, 25 years after the inception of the Babine Lake Development Project by K.R.S Shortreed( Book )
5 editions published in 2000 in English and held by 22 WorldCat member libraries worldwide
Construction of spawning channels in the late 1960's during the Babine Lake Development Program (BLDP) has resulted in increased sockeye escapements and fry densities in most years from the early 1970's to the present. In 1994 and 1995 we carried out a limnological study of Babine Lake to determine its current trophic status and rearing capacity for juvenile sockeye salmon (Oncorhynchus nerka). We investigated the effect of the increased escapements and fry densities on lake physics, chemistry, lower trophic levels, and sockeye diet by comparing our data with similar data collected before (Johnson 1961, 1964) and shortly after (Stockner and Shortreed 1975; Rankin 1977) the inception of the BLDP. Current spring overturn total phosphorus concentrations (5-9 mg/L), seasonal average chlorophyll concentrations (1.9-2.5 mg/L), and bacteria numbers (<1.7x10⁶/mL) indicate the lake is in the middle to upper range of oligotrophy. The average C:N:P ratio was 314:31:1, indicating that the lake was P-limited. Total phosphorus loading has increased approximately 38% from estimates prior to enhancement, primarily because of increased sockeye escapements (i.e. nutrients from carcasses). Seasonal daily photosynthetic rates were 125 mg C·m-2·d-1 in 1994 and 155 mg C·m⁻²·d⁻¹ in 1995, higher than the 1973 average of 100 mg C·m⁻²·d⁻¹. Daphnia were the dominant prey item of juvenile sockeye both before BLDP and during our study. However, in our study grazing pressure on the zooplankton community (inferred from fall fry densities and smolt numbers) was much lower than in most years after BLDP and was similar to years before BLDP. Available evidence indicates that despite consistently higher fry densities as a result of BLDP, Babine Lake remains a quality nursery area for juvenile sockeye and its rearing capacity has not been exceeded. However, evidence from 1973 diets suggests that some of the higher post-BLDP fry recruitments have neared or reached the lake's rearing capacity and that further increases in fry recruitment would not result in additional smolt production
Trophic status and rearing capacity of smaller sockeye nursery lakes in the Skeena river system ( Book )
4 editions published in 1998 in English and held by 19 WorldCat member libraries worldwide
The Skeena River system in British Columbia has one large sockeye salmon nursery lake (Babine Lake) and about 26 smaller lakes. This report presents a study of ten of the larger non-Babine nursery lakes in the system. It examines lake physics, chemistry, several trophic levels important to juvenile sockeye, and juvenile sockeye numbers, biomass, and diet. Collected data enabled documentation of the lakes' trophic status and the current state of their plankton and limnetic fish populations. The data also allowed estimation of the numbers of juvenile sockeye that the lakes could sustain when at rearing capacity. Recommendations are provided regarding the most suitable techniques for restoration and/or enhancement of the sockeye stocks in each of the lakes
In-river accessory equipment for fixed-location hydroacoustic systems by H. J Enzenhofer( Book )
4 editions published in 1998 in English and held by 18 WorldCat member libraries worldwide
A hydroacoustic system was installed near the confluence of the Qualark Creek and Fraser River near Yale, B.C. The system aids in enumeration of migrating salmon where high flow rates affects how the operator deploys the equipment
A deep water towed body for upfacing echo sounding from a small boat by H. J Enzenhofer( Book )
4 editions published in 1992 in English and held by 14 WorldCat member libraries worldwide
Trophic status and rearing capacity of Francois and Fraser Lakes by K. R. S Shortreed( Book )
2 editions published in 1996 in English and held by 14 WorldCat member libraries worldwide
 
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Audience level: 0.61 (from 0.47 for Evaluation ... to 0.89 for Trophic st ...)
Alternative Names

controlled identity Canada. Department of Fisheries and Oceans. Pacific Region

Canada. Cultus Lake Research Laboratory
Canada. Department of Fisheries and Oceans. Pacific Region. Cultus Lake Research Laboratory
Canada. Dept. of Fisheries and Oceans. Pacific Region. Cultus Lake Research Laboratory
Canada. Dept. of Fisheries and Oceans. Pacific Region. Fisheries Research Branch. Cultus Lake Research Laboratory
Cultus Lake Salmon Research Laboratory
Languages
English (59)