Beaver Library

European beaver dams impeded movements of anadromous salmonids as it was established by fishing survey, fish tagging and redd counts in two lowland streams in Lithuania.

A synthesis of scientific literature and our current level of: 1) understanding of the relationship between habitat quantity and quality and salmon production, 2) quantify the improvements in salmon production and survival that can be expected with different restoration actions, and 3) use models to help identify habitat factors limiting production and quantify population-level responses to restoration.

We have developed and implemented a simple approach that emulates the ecosystem engineering effects of beaver. This approach is less expensive and disruptive than typical large-scale engineering efforts and has the potential to restore both fish habitat and floodplain vegetation more rapidly than simply revegetating and waiting for the riparian zone to mature.  (Pg 246 – 255)

Whether beaver-induced changes of fish populations are beneficial or harmful will depend on the prevailing constraints on local fish species composition and abundance.

The goal of this project is to test whether a restoration method developed and tested in Bridge Creek, Oregon will be suitable for restoring streams like Pataha Creek in southeast Washington.

Relocating American beavers (Castor canadensis) from unwanted sites to desirable sites where damage exceeds stakeholder capacity) has been posited as a method to enhance in-stream habitat for salmonids in the Pacific Northwest.

Study of salmon and trout movement upstream and downstream of beaver dams, and how the dams effect them

Study of Coho Salmon rearing habitat in beaver ponds vs. non-beaver pools in Oregon

A review by the University of Southampton of how the reintroduction of beaver will affect fish in Scotalnd

Review of research about the positive and negative effects of beaver towards fish

Article that investigates the relationship between beavers and coho salmon in the Mendenhall Recreational Area, Alaska

Large-scale experiment to quantify the benefits of beavers and beaver dam analogues to a fish population and its habitat

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

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

Snohomish pond leveler design.

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