Abstract Title

Session S-03D: Forage Fish Research and Protection in the Salish Sea

Presenter/Author Information

Mike HayesFollow

Keywords

Species and Food Webs

Start Date

1-5-2014 5:00 PM

End Date

1-5-2014 6:30 PM

Description

The Nisqually Reach Aquatic Reserve extends from the Nisqually river delta to public lands surrounding nearby islands. The river delta has been the site of a major estuary restoration; most recently dike removal in fall 2009 to restore tidal inundation to 750 acres of wetlands. Since 2010 we have used a lampara net to conduct sampling (April-September, bimonthly or monthly) at delta and nearshore sites in the Nisqually Reach to assess juvenile salmon and forage fish habitat use and the response to restoration. Monitoring has also been conducted for benthic habitats (bathymetry, sediment characteristics, macroinvertebrates, eelgrass extent) and physical processes (hydrodynamics, sediment transport/deposition). We will highlight our results to date with an emphasis on salmon and forage fish spatial and temporal distributions, including: 1) Effect of benthic habitats and physical processes on fish distributions; 2) Fish distributions in response to restoration; and 3) Salmon migration pathways in the Nisqually Reach together with data on stock composition inferred from coded wire tag recoveries of Chinook salmon

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May 1st, 5:00 PM May 1st, 6:30 PM

Delta and nearshore habitat use by juvenile salmon and forage fish in the Nisqually Reach in relation to restoration and other factors

Room 6C

The Nisqually Reach Aquatic Reserve extends from the Nisqually river delta to public lands surrounding nearby islands. The river delta has been the site of a major estuary restoration; most recently dike removal in fall 2009 to restore tidal inundation to 750 acres of wetlands. Since 2010 we have used a lampara net to conduct sampling (April-September, bimonthly or monthly) at delta and nearshore sites in the Nisqually Reach to assess juvenile salmon and forage fish habitat use and the response to restoration. Monitoring has also been conducted for benthic habitats (bathymetry, sediment characteristics, macroinvertebrates, eelgrass extent) and physical processes (hydrodynamics, sediment transport/deposition). We will highlight our results to date with an emphasis on salmon and forage fish spatial and temporal distributions, including: 1) Effect of benthic habitats and physical processes on fish distributions; 2) Fish distributions in response to restoration; and 3) Salmon migration pathways in the Nisqually Reach together with data on stock composition inferred from coded wire tag recoveries of Chinook salmon