Beaver Library

This recovery plan provides guidance to improve the viability of coho salmon to the point that it meets the delisting criteria and no longer requires ESA protection. It includes strong recommendations to increase the number of beaver and recommends the use of BDAs to restore rearing habitat for salmon.

This document provides guidelines for design of stream crossings to aid upstream and downstream passage of migrating salmonids, and is intended to facilitate the design of a new
generation of stream crossings.

This assesses how beaver dams effect fish habitat and how the removal of them may affect the fish

Study of the effects of an ephemeral beaver pond on the growth and maturity of age-2 Atlantic salmon in Eastern Canada

Study of how beaver dams and their effect on stream flow affect Atlantic Salmon

A policy, process, and design guide with best management practices for fish passage

Comparison data on temperature, food abundance, stream flow, cover and population density with trout and salmon movements.

Status of Atlantic salmon on Prince Edward Island in 2011.

Snohomish pond leveler design.

Effects of pond levelers on salmon migration in beaver pond complexes.

Tested how assisting beaver to create stable colonies and aggrade incised reaches of Bridge Creek could create measurable improvements in riparian and stream habitat conditions and abundance of native steelhead.

A collection of YouTube video links about salmon passage at beaver dams.

State of Oregon Fish Passage Rules from 2017.

This review summarizes how beaver impact ecosystem structure and geomorphology, hydrology and water resources, water quality, freshwater ecology, and humans and society.

A review on how beaver ponds affect fish

Educational article on the value of beavers by the Habitat Program supporting fish habitat conservation and restoration across Alaska, Washington, Oregon, California, and Idaho. Includes video and other helpful links.

A study of the migration dynamics and survival of Atlantic salmon (Salmo salar) smolts over 14 years in Canada.

An article that quotes experts claiming a report by Daryl Guignion stating that beavers should be removed from Prince Edward Island to help Atlantic salmon is not credible or science based.

Beaver dams and manmade Beaver Dam Analogs (BDA’s) on the John Day River system in OR accelerated recovery of steelhead trout.

Multiple studies cited showing an overall beneficial effect of beaver dams on salmon and trout.