Abstract Title

Session S-03A: Changes in Salish Sea Water Quality

Proposed Abstract Title

Assignment of Feeding Guild Classifications and Functional Roles to Puget Sound Benthic Macroinvertebrates

Presenter/Author Information

Clifton HerrmannFollow

Keywords

Marine Water Quality

Location

Room 6C

Start Date

1-5-2014 5:00 PM

End Date

1-5-2014 6:30 PM

Description

The assignment of feeding guild classifications and functional roles to estuarine benthic macroinvertebrates is a new effort being conducted by Ecology’s Marine Sediment Monitoring Program (MSMP) in conjunction with the Puget Sound Ecosystem Monitoring Program. Functional information has been applied in past Puget Sound benthos studies, in the Strait of Georgia, and in other estuarine surveys worldwide to elucidate food web dynamics and carbon pathway sources and sinks. As part of our current effort, the feeding guild classification system developed by Macdonald et al. (2010) for the benthic macroinvertebrates of the Strait of Georgia Ambient Monitoring Project, Phase 2 (AMP), has been adopted and applied to 1,589 benthic taxa collected by the MSMP. Puget Sound taxa, which also occur in the AMP surveys, were assigned to feeding guilds by means of the Macdonald et al. coding criteria: feeding mode, food type and source, motility and life habit. Additional literature searches were conducted to assign functional coding to the benthic taxa that were not found in the Strait of Georgia study. Feeding guild classifications were then applied to the benthos data collected between 1997 and 2012 for eight Puget Sound regions and six urban bays, and spatial distribution maps generated. Spatial patterns and temporal changes in benthic feeding guild distribution are noted, and possible structuring mechanisms such as shifting phytoplankton communities and other environmental conditions and pressures are discussed.

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

Assignment of Feeding Guild Classifications and Functional Roles to Puget Sound Benthic Macroinvertebrates

Room 6C

The assignment of feeding guild classifications and functional roles to estuarine benthic macroinvertebrates is a new effort being conducted by Ecology’s Marine Sediment Monitoring Program (MSMP) in conjunction with the Puget Sound Ecosystem Monitoring Program. Functional information has been applied in past Puget Sound benthos studies, in the Strait of Georgia, and in other estuarine surveys worldwide to elucidate food web dynamics and carbon pathway sources and sinks. As part of our current effort, the feeding guild classification system developed by Macdonald et al. (2010) for the benthic macroinvertebrates of the Strait of Georgia Ambient Monitoring Project, Phase 2 (AMP), has been adopted and applied to 1,589 benthic taxa collected by the MSMP. Puget Sound taxa, which also occur in the AMP surveys, were assigned to feeding guilds by means of the Macdonald et al. coding criteria: feeding mode, food type and source, motility and life habit. Additional literature searches were conducted to assign functional coding to the benthic taxa that were not found in the Strait of Georgia study. Feeding guild classifications were then applied to the benthos data collected between 1997 and 2012 for eight Puget Sound regions and six urban bays, and spatial distribution maps generated. Spatial patterns and temporal changes in benthic feeding guild distribution are noted, and possible structuring mechanisms such as shifting phytoplankton communities and other environmental conditions and pressures are discussed.