Using Spatial Resampling to Assess Redd Count Survey Length Requirements for Pacific Lamprey Public Deposited

http://ir.library.oregonstate.edu/concern/articles/st74cs27s

To the best of our knowledge, one or more authors of this paper were federal employees when contributing to this work. This is the publisher’s final pdf. The article is copyrighted by the American Fisheries Society and published by Taylor & Francis. It can be found at:  http://www.tandfonline.com/loi/ujfm20#.VJnE_s_AAA.

Descriptions

Attribute NameValues
Creator
Abstract or Summary
  • Pacific Lamprey Entosphenus tridentatus has declined across its range along the West Coast of North America, and an understanding of all life history phases is needed to address population recovery. Spawning surveys (redd counts) are common tools currently used to monitor returning adult salmonids, but such methodologies are in their infancy for Pacific Lamprey. Our objective was to assess the minimum spawning survey distance required to detect the presence of Pacific Lamprey redds and obtain precise redd density estimates from these data. To do this, we statistically resampled existing spawning locations of Pacific Lamprey collected during spawning surveys in four streams of the Willamette River Basin, Oregon, during spring of 2013. We found that the minimum survey distance for Pacific Lamprey redd detection was inversely related to the observed redd density and was always less than 1.2 km. Survey distance requirements to obtain precise redd counts (±20% of observed redd densities) were also inversely related to redd density and habitat availability, and varied between 1.3 km and 13.7 km. Our results suggest that spawning surveys are a potential tool for monitoring adult Pacific Lamprey abundance, but the specific objectives of the monitoring programs and acknowledgment of unknowns must be considered prior to implementation into recovery plans.
Resource Type
DOI
Date Available
Date Issued
Citation
  • Mayfield, M. P., Schultz, L. D., Wyss, L. A., Colvin, M. E., & Schreck, C. B. (2014). Using spatial resampling to assess redd count survey length requirements for Pacific Lamprey. North American Journal of Fisheries Management, 34(5), 923-931. doi:10.1080/02755947.2014.932867
Series
Keyword
Rights Statement
Funding Statement (additional comments about funding)
Publisher
Peer Reviewed
Language
Replaces
Additional Information
  • description.provenance : Approved for entry into archive by Erin Clark(erin.clark@oregonstate.edu) on 2014-12-23T19:41:51Z (GMT) No. of bitstreams: 1 MayfieldMariahFisheriesWildlifeUsingSpatialResampling.pdf: 591390 bytes, checksum: c9678fb0149a60ae95ae9b45f2babb5f (MD5)
  • description.provenance : Submitted by Erin Clark (erin.clark@oregonstate.edu) on 2014-12-23T19:41:24Z No. of bitstreams: 1 MayfieldMariahFisheriesWildlifeUsingSpatialResampling.pdf: 591390 bytes, checksum: c9678fb0149a60ae95ae9b45f2babb5f (MD5)
  • description.provenance : Made available in DSpace on 2014-12-23T19:41:51Z (GMT). No. of bitstreams: 1 MayfieldMariahFisheriesWildlifeUsingSpatialResampling.pdf: 591390 bytes, checksum: c9678fb0149a60ae95ae9b45f2babb5f (MD5) Previous issue date: 2014-08-13

Relationships

In Administrative Set:
Last modified: 07/26/2017

Downloadable Content

Download PDF
Citations:

EndNote | Zotero | Mendeley

Items