Tenmile Lakes 2007 summary report

Identification Information

Citation

Originator: Tenmile Lakes Basin Partnership

Publish Date: 2/2008

Online Link: None

BPA Project #:

Contact Information

Agency: Watershed Councils

Name: Jason Frederickson

Job Position: Monitoring Coordinator

Telephone: (541)759-2414

E-Mail Address: tlbp@presys.com

Description

Abstract: BACKGROUND As a continuation of previous toxic algal monitoring, Tenmile Lakes were sampled in 2007 to assess the dynamics of the potentially toxigenic blue-green algal species, Microcystis aeruginosa and various Anabaena species. Microcystis produces hepatotoxins (known as microcystins), and Anabaena produces both neurotoxins (anatoxin-a) and microcystin. Both toxins are capable of harmful effects to animals and humans (Chorus and Bartram 1999). A toxic bloom of M. aeruginosa was first documented in Tenmmile Lakes in September of 1997, prompting the Oregon Department of Health to issue a health advisory recommending that the lakes not be used for drinking water and that contact recreation be avoided (Kann and Gilroy 1997). The goal of 2007 sampling, performed by the Tenmile Lakes Basin Partnership, was to determine presence and cell density of these potentially toxic species at a limited number of sampling stations. Cell density of potentially toxigenic species was then compared to drinking water guidance levels for lakes and reservoirs (e.g., Yoo et al. 1995; Chorus and Bartram 1999).

Purpose:

Time Period of Content:

Geographic Extent: Southern Oregon coast, Tenmile Lakes

Status: Final

Use Constraints:

Format: PDF

Data Quality Information

Lineage-Source:

Data Information

No data information was supplied.

Entity and Attribute Information

Attributes Description: Field attribute information is available in the database table field descriptions.

Is a physical copy maintained for reference at Headquarters? Unknown