Evaluate Habitat Use and Population Dynamics of Lampreys in Cedar Creek, 2001 Annual Report.

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Description

Pacific lamprey (Lampetra tridentata) in the Columbia River Basin have declined to a remnant of their pre-1940s populations and the status of the western brook lamprey (L. richardsoni) is unknown. Identifying the biological and ecological factors limiting lamprey populations is critical to their recovery, but little research has been conducted on these species within the Columbia River Basin. This ongoing, multi-year study examines lamprey populations in Cedar Creek, Washington, a third-order tributary to the Lewis River. This annual report describes the activities and results of the second year of this project. Adult (n = 24), metamorphosed (n = 247), transforming ... continued below

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44 pages

Creation Information

Stone, Jennifer; Pirtle, Jody & Barndt, Scott A. March 2002.

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This report is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. It has been viewed 11 times . More information about this report can be viewed below.

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Description

Pacific lamprey (Lampetra tridentata) in the Columbia River Basin have declined to a remnant of their pre-1940s populations and the status of the western brook lamprey (L. richardsoni) is unknown. Identifying the biological and ecological factors limiting lamprey populations is critical to their recovery, but little research has been conducted on these species within the Columbia River Basin. This ongoing, multi-year study examines lamprey populations in Cedar Creek, Washington, a third-order tributary to the Lewis River. This annual report describes the activities and results of the second year of this project. Adult (n = 24), metamorphosed (n = 247), transforming (n = 4), and ammocoete (n = 387) stages from both species were examined in 2001. Lamprey were captured using adult fish ladders, lamprey pots, rotary screw traps, and lamprey electrofishers. Twenty-nine spawning ground surveys were conducted. Nine strategic point-specific habitat surveys were performed to assess habitat requirements of juvenile lamprey.

Physical Description

44 pages

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  • Other Information: PBD: 31 Mar 2002

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  • Report No.: DOE/BP-00004672-1
  • Grant Number: 00004672
  • DOI: 10.2172/794116 | External Link
  • Office of Scientific & Technical Information Report Number: 794116
  • Archival Resource Key: ark:/67531/metadc736194

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Office of Scientific & Technical Information Technical Reports

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Creation Date

  • March 2002

Added to The UNT Digital Library

  • Oct. 19, 2015, 7:39 p.m.

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  • Nov. 5, 2015, 1:57 p.m.

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Stone, Jennifer; Pirtle, Jody & Barndt, Scott A. Evaluate Habitat Use and Population Dynamics of Lampreys in Cedar Creek, 2001 Annual Report., report, March 2002; United States. (digital.library.unt.edu/ark:/67531/metadc736194/: accessed November 22, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.