Adaptive Management of the Russian River Estuary for the Enhancement of Salmonid Rearing Habitat.

Adaptive Management of Adaptive Management of the Russian River Estuarythe Russian River Estuary

for thefor the

Enhancement of Salmonid Enhancement of Salmonid Rearing HabitatRearing Habitat

Lagoon becomes tidal, highly saline & shallow.

Saltwater stays on bottom & becomes anoxic.

Closed Estuary

Objective:Objective:• Manage the estuary as a closed systemManage the estuary as a closed system

– Either entirely closedEither entirely closed– Or perched lagoonOr perched lagoon

• Maintain depths of 3-8 between May Maintain depths of 3-8 between May and October 15and October 15thth

– Over this range, the deeper the betterOver this range, the deeper the better

Adaptive management Adaptive management optionsoptions

• Manage the breaching to promote Manage the breaching to promote closed or perched lagoonclosed or perched lagoon

–Elongate and widen breachElongate and widen breach–Reduce slope of breachReduce slope of breach–Cut to the northCut to the north

•Address influence of jettyAddress influence of jetty–Modify, Remove, Perforate, pipeModify, Remove, Perforate, pipe

•Other optionsOther options–Elevate structures, other?Elevate structures, other?

Local input is welcome!Local input is welcome!

Community meetingCommunity meetingWednesday November 19, 2008Wednesday November 19, 2008

Jenner Community HallJenner Community Hall