Fish and Wildlife Service

News & Info Featured Articles Fact Sheets Podcasts Video Photo Library Brochures Maps Funding Opportunities Federal Register Notices Media Contacts

Program History Nationa & Regional Programs Yreka FWO Connecting People With Nature Educational Resources for Teachers and Parents What You Can Do

Fun Activies

Administration Forest Resources Hydropower Habitat Restoration Fisheries Partners for Fish and Wildlife National Fish Passage Program

Threatened and Endangered Species Species List Local Species Information How Species Are Listed How Critical Habitat is Designated ESA Consultation Species Recovery Survey Protocols & Techniques

Biological Opinions Federal Register Notices Documents and Reports Survey Protocols & Techniques Federal Laws & Regulations Maps & GIS Information

General FAQs Hydro FAQs Other Program FAQs

Task Force Klamath Fishery Management Council Klamath Restoration Project Reports

Biological Opinions

A biological opinion is the document that states the opinion of the Fish and Wildlife Service as to whether or not an action by another federal agency is likely to jeopardize the continued existence of listed species or result in the destruction or adverse modification of critical habitat. The Yreka Fish and Wildlife Office has produced the following biological opinions.

USFWS 2007 Biological Opinion on the Effects of the Klamath Hydroelectric Project on the endangered Lost River and Shortnose Suckers. December 3, 2007. With appendices (separate file).

USFWS 2002 Biological Opinion on the Effects of Reclamation’s Klamath Irrigation Project on the endangered Lost River and Shortnose Suckers. May 31, 2002.

Last updated: April 12, 2013