Preliminary juvenile Lost River and shortnose sucker investigations in Clear Lake, California--2011 pilot study summary
Open-File Report
2012-1180
Prepared in cooperation with the U.S. Fish and Wildlife Service
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Abstract
Poor recruitment appears to limit the recovery of Lost River and shortnose sucker populations in Clear Lake Reservoir, California, but the cause is unknown. Adult suckers migrate up Willow Creek and its tributaries to spawn in some years, but low flow in Willow Creek may inhibit spawning migrations in other years. It is unclear whether spawning is successful, larvae survive, or juveniles persist to adulthood. Environmental variables associated with successful spawning or young-of-year survival have not been identified and early life history for these populations is poorly understood. The U.S. Geological Survey in cooperation with the U.S. Fish and Wildlife Service and Ruby Pipeline L.L.C. Corporation (El Paso, Tex.) initiated a study in 2011 to better understand juvenile sucker life history in Clear Lake Reservoir, and to identify constraints in the early life history that may limit recruitment to the adult spawning populations. This is a report on the 2011 pilot study for this project.
Suggested Citation
Burdick, S.M., Rasmussen, J., 2012, Preliminary juvenile Lost River and shortnose sucker investigations in Clear Lake, California--2011 pilot study summary: U.S. Geological Survey Open-File Report 2012-1180, iv, 18 p.; ill.; map, https://doi.org/10.3133/ofr20121180.
ISSN: 2331-1258 (online)
| Publication type | Report |
|---|---|
| Publication Subtype | USGS Numbered Series |
| Title | Preliminary juvenile Lost River and shortnose sucker investigations in Clear Lake, California--2011 pilot study summary |
| Series title | Open-File Report |
| Series number | 2012-1180 |
| DOI | 10.3133/ofr20121180 |
| Year Published | 2012 |
| Language | English |
| Publisher | U.S. Geological Survey |
| Publisher location | Reston, VA |
| Contributing office(s) | Western Fisheries Research Center |
| Description | iv, 18 p.; ill.; map |
| First page | i |
| Last page | 18 |
| Country | United States |
| State | California |
| Other Geospatial | Clear Lake |
| Online Only (Y/N) | Y |
| Additional Online Files (Y/N) | N |