1985 Libby Reservoir Angler Census: May 13-October 31, 1987 [i.e. 1985] : Interim Report.

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Description

An intensive creel and economic survey was conducted on Libby Reservoir from May 13 through October 31, 1985. This research was part of a larger effort to quantify the existing reservoir fishery and the effects of dam operation on this fishery. Census techniques incorporated direct interviews and electronic car counters installed at all established boat ramp access sites. A total of 4243 angling party interviews, 2379 car counter interviews and 719 economic surveys were conducted on Libby Reservoir. Interviewed anglers fished for 52,146 hours. Estimated pressure was 518,916 hours or 93,500 angler days equivalent to 2.10 angler days per acre. ... continued below

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105 pages

Creation Information

Chisholm, Ian & Hamlin, Paul May 1, 1987.

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Description

An intensive creel and economic survey was conducted on Libby Reservoir from May 13 through October 31, 1985. This research was part of a larger effort to quantify the existing reservoir fishery and the effects of dam operation on this fishery. Census techniques incorporated direct interviews and electronic car counters installed at all established boat ramp access sites. A total of 4243 angling party interviews, 2379 car counter interviews and 719 economic surveys were conducted on Libby Reservoir. Interviewed anglers fished for 52,146 hours. Estimated pressure was 518,916 hours or 93,500 angler days equivalent to 2.10 angler days per acre. Eight percent of the total estimated angler days or 7436 fishing grips occurred on the Canadian portion of the reservoir. Boat anglers expended over 96% of the total effort. Anglers caught an estimated 617,097 fish during the creel period, 97% (597,380 fish) of which were kokanee. The majority (98%) of the kokanee harvested were caught on the US portion of the reservoir. Harvest of Salmo spp. was estimated at 15,334 fish. Whitefish and brook trout harvest was estimated at 1273 and 48 fish, respectively. Nongame fish species were almost nonexistent in the creel and estimated harvest was less than 0.5% of the total harvest.

Physical Description

105 pages

Notes

NTIS, PC A06/MF A01; 1.

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  • Other Information: Portions of this document are illegible in microfiche products

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  • Other: DE88005200
  • Report No.: DOE/BP-12660-4
  • Grant Number: AI79-84BP12660
  • DOI: 10.2172/5494223 | External Link
  • Office of Scientific & Technical Information Report Number: 5494223
  • Archival Resource Key: ark:/67531/metadc1093676

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • May 1, 1987

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  • Feb. 10, 2018, 10:06 p.m.

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Chisholm, Ian & Hamlin, Paul. 1985 Libby Reservoir Angler Census: May 13-October 31, 1987 [i.e. 1985] : Interim Report., report, May 1, 1987; United States. (digital.library.unt.edu/ark:/67531/metadc1093676/: accessed October 23, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.