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2 edition of Hydroacoustic assessment of lake trout (Salvelinus namaycush) populations. found in the catalog.

Hydroacoustic assessment of lake trout (Salvelinus namaycush) populations.

Trevor A. Middel

Hydroacoustic assessment of lake trout (Salvelinus namaycush) populations.

by Trevor A. Middel

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  • 4 Currently reading

Published .
Written in English


About the Edition

This thesis explores the use of hydroacoustic sampling methods to assess the abundance and distribution of lake trout in a single lake. Chapter One focuses upon the development of a target-strength to fish-length relationship for lake trout at a frequency of 120 kHz. A significant and positive relationship was found between target-strength and length (TS = 20 log10 (TLEN) - 65.3) which is comparable to relationships found for other physostomous species of fish. The second chapter applies this relationship to data from monthly acoustic surveys conducted from June--September on a lake trout lake for which mark-recapture population estimates of lake trout are available. Abundance estimates calculated from July, August and September surveys compared favourably to each other and to mark-recapture population estimates. The results of this study suggest that more work is required to determine an optimal sampling season and the sampling intensity required to obtain more precise abundance estimates.

The Physical Object
Pagination112 leaves.
Number of Pages112
ID Numbers
Open LibraryOL19215500M
ISBN 100494023244

Hydroacoustic assessment of resident species in the Ugashik Lakes, Alaska Garrett James Staines The Ugashik Lakes in southwest Alaska are a large, remote, thereimictic system that does not thermally stratify during the ice-free season. Little research has been done on the resident species of this system and others similar to it.   We evaluated whether predation by introduced lake trout Salvelinus namaycush could explain the 88% decline in escapement of kokanee Oncorhynchus nerka during – in Lake Chelan, Washington. We quantified the strength and trend of predation impacts with field sampling, a hydroacoustic assessment of kokanee production, and bioenergetics Cited by:

HYDROACOUSTICS: LAKES AND RESERVOIRS Boulder Lake Lake Hattie Sulphur Creek Reservoir Lake Viva Naughton Lower Sunshine Reservoir Lake DeSmet Alcova Reservoir New Fork Lakes Rob Roy Reservoir Upper Sunshine Reservoir Hog Park Reservoir SCALE IN METERS 0 N FIGURE 1. — Map of 11 study waters showing various hydroacoustic . Eastern Basin of Lake Ontario Warmwater Fisheries Assessment, (Lantry J.) NYSDEC 5 Lake Trout Rehabilitation in Lake Ontario, (Lantry B., Lantry J.) USGS NYDEC 6 Thousand Islands Warmwater Fisheries Assessment (McCullough, Gordon) NYSDEC 7 Lake St. Lawrence Warmwater Fisheries Assessment (Klindt, Gordon) NYSDEC 8Cited by: 1.

MNDNR conducts the May Lake Trout assessment in MN -1 while commercial operators provide data for MN-2 and MN The May Lake Trout assessment utilizes inch stretch-measure mesh. In MN-1 each gang consists of three foot nets for a total of feet per gang; commercial fishermen set gangs of variable length. Lake Trout Movements and Habitat Use in a Small Northern Lake .. Hydroacoustic Assessment of Lake Trout Populations in Small Inland Lakes.. Effects of Lake Fertilization on a Lake Trout Population at Saqvaqjuac, Nunavut.


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Hydroacoustic assessment of lake trout (Salvelinus namaycush) populations by Trevor A. Middel Download PDF EPUB FB2

Additionally, an acoustic survey from Pine Mountain Lake yielded a population estimate of 68 carryover brook trout compared to a capture-recapture estimate of carryover brook trout. Hydroacoustic survey of fish in lakes Kootenay, Okanagan and Skaha: Final report to Ministry of Environment, Fisheries Branch, Province of British Columbia [Thorne, Richard E] on *FREE* shipping on qualifying offers.

Hydroacoustic survey of fish in lakes Kootenay, Okanagan and Skaha: Final report to Ministry of EnvironmentAuthor: Richard E Thorne.

Hydroacoustic assessment of the abundance and distribution of rainbow smelt in Lake Oahe: Report [Burczynski, Janusz] on *FREE* shipping on qualifying offers. Hydroacoustic assessment of the abundance and distribution of rainbow smelt in Lake Author: Janusz Burczynski. Hydroacoustic Assessment of Abundance and Diel Distribution of Sockeye Salmon and Kokanee in the Sawtooth Valley Lakes, Idaho DA VID A.

BEAUCHAMP Utah Cooperative Fish and Wildlife Research Unitl Department of Fisheries and Wildlife-Ecology Center Utah State University, Logan, UtahUSA. Hydroacoustics as a tool for studies of fish and their habitat Fig.

Seasonal changes in the distribution of vendace, oxygen concentrations and temperature in lake Pluszne. T1 - Hydroacoustic surveys of fish abundance and distribution in Twin Lakes, Colorado.

AU - Thorne, R. AU - Thomas, G. PY - /12/1. Y1 - /12/1. N2 - Two distinct size groups of fish were observed: large fish below the thermocline (12 m) and small fish in the : R.

Thorne, Gary Thomas. gill net and hydroacoustic fish resource ev aluation of an ultraligotr ophic lake to be the inflexion point where growth rates start to slow down (authors’ unpublished data).

Here, the new hydroacoustic system BioBase, which enables the rapid characterisation of features including lake bottom hardness (with soft, medium hard and hard bottoms represented by values of 0 totoand torespectively), was applied to known spawning grounds of Arctic charr (Salvelinus alpinus) in the north basin Cited by: 6.

We conducted acoustical surveys with a horizontal beam transducer to detect fish and with a vertical beam transducer to detect depth and macrophytes in two typical shallow lakes along the middle and lower reaches of the Changjiang (Yangtze) River in November Both lakes are subject to active fish management with annual stocking and removal of large fish.

Cited by: 4. Technical Guidance for Assessment and Mitigation of the Hydroacoustic Effects of Pile Driving on Fish Prepared for: California Department of Transportation N Street Sacramento, CA Contact: Jim Andrews Prepared by: ICF Jones & Stokes K Street, Suite Sacramento, CA Contacts: Rick Oestman, Dave Buehler And.

Modeling Target Strength Distributions to Improve Hydroacoustic Estimation of Lake Trout Population Size HARRY J. CROCKETT* Colorado Division of Wildlife, West Prospect Street, Fort Collins, ColoradoUSA BRETT M.

JOHNSON Department of Fishery and Wildlife Biology, Colorado State University, Campus Delivery, Fort Collins. The non-random distribution of lake trout, general agreement of locations of high lake trout densities and egg densities, and the relatively low uncertainty associated with lake trout density in this study suggests that hydroacoustic sampling can be a valuable tool for estimating spawner density and abundance for deep by: 4.

III: Hydroacoustic Assessment. Use of horizontal dual-beam sonar for fish surveys in shallow waters (J. Kubecka). Application of a hydroacoustic sampling technique in a large wind-exposed, shallow lake (P.J.

Mous, J. Kemper). A hydroacoustic assessment of a rainbow trout (Oncorhynchus mykiss) population in a deep oligotrophic lake (M. Cryer). Description In this comprehensive edited book, international experts in fisheries management and ecology review and appraise the status of lake and reservoir fisheries, assessment of fisheries yields, trophic ecology, rehabilitation and conservation, including a special section on African lakes where so much information of huge relevance to fisheries managers is now available.

Hydroacoustic assessment in lakes – counting the coregonids: We have employed two transducer systems to estimate the distribution and abundance of the pelagic fish assemblage in numbers ofAlgonquinParklakes. This is primarily a method for estimating cisco and whitefish abundance in our case.

fish community structure during a whole-lake manipulation. Chapter Two investigates how fish behaviour can impact the accuracy of hydroacoustic sampling methods. This thesis highlights the applicability of size-spectra monitoring for freshwater fish communities, as well as theAuthor: Abby Ann Daigle.

Inland Ontario Lakes Designated for Lake Trout Management July ii. ISBN (PDF) Lakes Designated for Lake Trout Management inventory or assessment data.

This list of Lake Trout lakes has been reviewed by File Size: 2MB. Web site of the U.S. Fish and Wildlife Service. Since the M\V Spencer F. Baird has demonstrated it serves as an excellent platform for stocking juvenile lake trout onto offshore areas of Lakes Huron and Michigan, however the vessel’s stock assessment capabilities have yet to be exercised.

III: Hydroacoustic Assessment. Use of horizontal dual-beam sonar for fish surveys in shallow waters (J. Kubecka). Application of a hydroacoustic sampling technique in a large wind-exposed, shallow lake (P.J.

Mous, J. Kemper). A hydroacoustic assessment of a rainbow trout (Oncorhynchus mykiss) population in a deep oligotrophic lake (M. Cryer).Price: $ Since the M\V Spencer F. Baird has demonstrated it serves as an excellent platform for stocking juvenile lake trout onto offshore areas of Lakes Huron and Michigan, however the vessel’s stock assessment capabilities have yet to be exercised.

Stock Assessment and Resource Monitoring Hydroacoustic technology has been proven an effective method for estimating fish abundance and biomass in lakes, rivers, and oceans. with biotelemetry to study the swimming and foraging behaviour of acoustically tagged lake trout.Using lake trout (Salvelinus namaycush) fishery data from Lake Opeongo, we estimate that sources of natural variation in size spectra at the population level could be much higher and potentially require longer monitoring periods.

We noted from our study that standardized surveys and data analyses are critical if acoustically derived size Cited by: 7.The consumption estimate was based on a hydroacoustic estimate for lake trout abundance (7, fish over mm in total length), an incidence of kokanee per lake trout stomach sample which ranged from to fish, and a gastric evacuation rate of 47 hours for lake trout to digest consumed kokanee.