National Technical Reports Library - NTRL

National Technical Reports Library

The National Technical Information Service acquires, indexes, abstracts, and archives the largest collection of U.S. government-sponsored technical reports in existence. The NTRL offers online, free and open access to these authenticated government technical reports. Technical reports and documents in its repository may be available online for free either from the issuing federal agency, the U.S. Government Publishing Office’s Federal Digital System website, or through search engines.




Details
Actions:
Download PDFDownload PDF
Download

Identification of Larval Pacific Lampreys (Lampetra Tridentata) River Lampreys (L. Ayresi), and Western Brook Lampreys (L. Richardsoni) and Thermal Requirements of Early Life History Stages of Lampreys. Annual Report 2002.


DE2004821798

Publication Date 2003
Personal Author Meeuwig, M. H.; Bayer, J. M.; Seelye, J. G.
Page Count 52
Abstract Two fundamental aspects of lamprey biology were examined to provide tools for population assessment and determination of critical habitat needs of Columbia River Basin lampreys (the Pacific lamprey, Lampetra tridentata, and the western brook lamprey, L. richardsoni). In particular: (1) we examined the usefulness of current diagnostic characteristics in identification of larval lampreys, specifically pigmentation patterns, and collected material for development of meristic and morphometric descriptions of early life stages of lampreys, and (2) we examined the effects of temperature on survival and development of early life stages of Columbia River Basin lampreys.
Keywords
  • Lampreys
  • Columbia River
  • Rivers
  • Habitats
  • Aquatic organisms
  • Watersheds
  • Bonneville power administration
Source Agency
  • Technical Information Center Oak Ridge Tennessee
Corporate Authors Geological Survey, Cook, WA. Columbia River Research Lab.; Bonneville Power Administration, Portland, OR.
Supplemental Notes Sponsored by Bonneville Power Administration, Portland, OR.
Document Type Technical Report
NTIS Issue Number 200424
Identification of Larval Pacific Lampreys (Lampetra Tridentata) River Lampreys (L. Ayresi), and Western Brook Lampreys (L. Richardsoni) and Thermal Requirements of Early Life History Stages of Lampreys. Annual Report 2002.
Identification of Larval Pacific Lampreys (Lampetra Tridentata) River Lampreys (L. Ayresi), and Western Brook Lampreys (L. Richardsoni) and Thermal Requirements of Early Life History Stages of Lampreys. Annual Report 2002.
DE2004821798

  • Lampreys
  • Columbia River
  • Rivers
  • Habitats
  • Aquatic organisms
  • Watersheds
  • Bonneville power administration
  • Technical Information Center Oak Ridge Tennessee
Loading