Marine Benthic Abundance Data

This dataset contains Puget Sound benthic abundance data. Before accessing data please download the README file.

King County monitors the community of animals that live in and on the sediments at the bottom of Puget Sound. These animals, called benthos, are crucial to the health of Puget Sound. We collect sediment samples to help us understand what the sediments are like physically and chemically and how they support different species.

Benthic samples have been collected since 2015 from 14 sites. Every 2 years we sample eight sites in Elliott Bay and every 5 years we collect samples from three deep sites in the mainstem of the Central Basin and three smaller embayments. We also collect benthic samples near treatment plant outfalls as well as cleanup sites.

Benthic samples are typically collected in replicates (3-5 samples per location and period of time). These replicates help us understand the variability of the benthic community at that location and are distinguished by the fields "Sample Rep ID" and "Field Replicate".

For corresponding benthic biomass data see: Marine Benthic Biomass Data.

For questions about the data, please contact MarineWQ@kingcounty.gov.

Data and Resources

Additional Info

Field Value
Source https://data.kingcounty.gov/resource/er5r-bf3q
Author Eash-Loucks, Wendy
Last Updated January 13, 2026, 19:55 (UTC)
Created October 28, 2025, 14:58 (UTC)
Category Environment & Waste Management
harvest_object_id 79bc10d3-3b48-4037-9798-c1bf0af461cd
harvest_source_id 61b30bec-bf94-4067-b6fd-acae5a532611
harvest_source_title king-county