|
|
|
| | |
|
|
MetaData for 2009 Foskett Spring Speckled Dace Investigations Progress Report 2009
2009 Foskett Spring Speckled Dace Investigations Progress Report 2009
Identification Information
-
Citation
- Originator: Scheerer, P. and S. Jacobs
- Publish Date: 2015
- Online Link: None
- BPA Project #:
-
Contact Information
- Agency: Oregon Department of Fish and Wildlife
- Name: Cedric Cooney
- Job Position: Natural Resources Data and Systems Manager
- Telephone: 503-947-6094
- E-Mail Address: cedric.x.cooney@odfw.oregon.gov
-
Description
- Abstract: Speckled dace (Rhinichthys osculus) are geographically widespread throughout
the western United States and occur in many isolated subbasins and interior drainages
in south-central Oregon. The Foskett Spring speckled dace (R. osculus ssp.) is
represented by a single population that inhabits Foskett Spring (Figure 1) on the west
side of Coleman Lake (Warner Lakes subbasin) in Lake County, Oregon. Foskett
speckled dace was listed as threatened under the federal Endangered Species Act in
1985 (U.S. Fish and Wildlife Service 1985). The Foskett speckled dace became isolated
in Foskett Spring at the end of the Pluvial period (~9,000-10,000 years ago). Foskett
Spring is a natural spring that rises from a springhead pool, flows through a narrow
spring brook into a series of shallow marshes, and then disappears into the soil of the
normally dry Coleman Lake (Figure 1). A second population in Dace Spring, located
approximately 0.8 kilometer south of Foskett Spring, was established from an
introduction of 100 fish from Foskett Spring in 1979-1980 (Williams et al. 1990); however
recent surveys have failed to document their continued existence at this location. In
1987, the U.S. Bureau of Land Management (BLM) acquired, through exchange, the 65
hectare parcel of land containing Foskett and Dace Springs. Both sites were fenced to
exclude livestock.
The Recovery Plan for the threatened and rare native fishes of the Warner Basin
and Alkali Subbasin states that Foskett speckled dace will probably not be delisted in the
near future because of its extremely isolated range and potential for degradation of its
habitat from localized events (USFWS 1997). The primary recovery objective for this
species is long-term persistence through preservation of its native ecosystem. The plan
further states that the conservation and long term sustainability of this species will be
met when: 1) long-term protection of its habitat, including spring source aquifers,
springpools and outflow channels, and surrounding lands is assured; 2) long-term
habitat management guidelines are developed and implemented to ensure the continued
persistence of important habitat features and guidelines include monitoring of current
habitat and investigation for and evaluation of new spring habitats; and 3) research into
life-history, genetics, population trends, habitat use and preference, and other important
parameters is conducted to assist in further developing or refining criteria 1) and 2),
above. Actions needed to meet these criteria include protecting the fish population and
its habitat, conserving genetic diversity of the fish population, ensuring adequate water
supplies are available, monitoring of the dace population and habitat conditions, and
evaluating long-term effects of climatic trends on recovery of this fish population.
The purpose of this investigation was to determine the status of the federally
listed Foskett Spring speckled dace and its habitat. This report updates a monitoring
program initiated in 2005 by ODFW (Scheerer and Jacobs 2005) by providing results of
monitoring conducted in 2009. Specifically, this monitoring program calls for biannual
estimates of population abundance, assessments of distribution and demographic
parameters and assessments of physical habitat conditions.
-
- Purpose:
-
- Time Period of Content:
- Geographic Extent: Warner and Alkali Basin
- Status: Final
- Use Constraints:
- Format: PDF File
Data Quality Information
- Lineage-Source:
Data Information
- No data information was supplied.
Entity and Attribute Information
- Attributes Description:
Is a physical copy maintained for reference at Headquarters?
No
Files
|
|
|
|