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Title

Quality Assurance Project Plan: Puget Sound Marine Benthic Index and Graphical Causal Model

 
Publication number Date Published
22-03-105May 2022
VIEW NOW Quality Assurance Project Plan: Puget Sound Marine Benthic Index and Graphical Causal Model (Number of pages: 62) (Publication Size: 2229KB)




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Author(s) Partridge, V. and D. Schoolmaster Jr.
Description Marine benthic invertebrates (benthos) are key components of the Puget Sound ecosystem, with many species providing important services such as nutrient renewal, food for other species (including human consumption), and ecosystem engineering. Benthos are valuable sentinels of ecosystem health because of their direct association living in, and sometimes consuming, sediments.

Indicators of benthic invertebrate community health can serve as direct measures of sediment and water quality. These can help to answer key questions such as:
• What is the current condition of the benthic habitat, including sediments and porewater and their associated invertebrate assemblages?
• How does benthic condition change over time in response to natural and human disturbances, especially as climate change modifies the ecosystem?

However, no widely accepted benthic infaunal indices equivalent to those developed elsewhere have yet been adopted for sediment regulatory or ambient monitoring work in Puget Sound.

As part of the June 2020 revision of the Puget Sound Vital Signs, the Puget Sound Partnership adopted an as-yet-unspecified Marine Benthic Index as an indicator of the Marine Water Vital Sign to fill a recognized gap in indicators of Puget Sound health. This project will develop not only the Marine Benthic Index to assess and communicate status and trends of benthic invertebrate community health, but also a graphical causal model that will be used to estimate linkages and test hypotheses of causation.
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Contact Valerie Partridge at 360-407-6764 or valerie.partridge@ecy.wa.gov
Keywords QAPP, Puget Sound sediment monitoring, Puget Sound Vital Signs, benthic invertebrates, benthos, quality assurance project plan, benthic index
WATERSHED Water Resource Inventory Areas
(WRIA 01,WRIA 02,WRIA 03,WRIA 05,WRIA 06,WRIA 07,WRIA 08,WRIA 09,WRIA 10,WRIA 11,WRIA 12,WRIA 13,WRIA 14,WRIA 15,WRIA 16,WRIA 17,WRIA 18)
DATA Environmental Information Management (EIM) #PSAMP_HP

Environmental Information Management (EIM) #PSAMP_LT

Environmental Information Management (EIM) #PSAMP_SP

Environmental Information Management (EIM) #PSEMP_LT

Environmental Information Management (EIM) #UWI

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Quality Assurance Monitoring Plan: The Puget Sound Sediment Monitoring Program