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Eelgrass distributions and bathymetry of Bellingham Bay, Washington, 2019


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Vanarendonk, N.R., Stevens, A.W., Nowacki, D.J., and Grossman, E.E., 2021, Eelgrass distributions and bathymetry of Bellingham Bay, Washington, 2019: U.S. Geological Survey data release,


This data release presents eelgrass distributions and bathymetry data derived from acoustic surveys of Bellingham Bay, Washington. Survey operations were conducted between February 16 and February 21, 2019 (USGS Field Activity Number 2019-606-FA) by a team of scientists from the U.S. Geological Survey Pacific Coastal and Marine Science Center and Washington State Department of Ecology. Eelgrass and bathymetry data were collected from the R/V George Davidson equipped with a single-beam sonar system and global navigation satellite system (GNSS) receiver. The sonar system consisted of a Biosonics DT-X single-beam echosounder and 420 kHz transducer with a 6-degree beam angle. Depths from the echosounder were computed using sound velocity [...]


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“Maps of tracklines showing bathymetry (left) and eelgrass distributions (right)”
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bbay19_bathy_eelgrass.csv 186.88 MB text/csv


Data were obtained to quantify the extent of eelgrass distributions and bathymetry along the natural and urbanized shorelines of Bellingham Bay, WA. These data are fundamental to the USGS Coastal Habitat in Puget Sound Project (CHIPS) to advance models and understanding of the transport and fate of sediment and sediment-bound contaminants. The CHIPS team will use these data to examine the extent that persistent contaminants like PCBs and PAHs that move with fine sediment accumulate and potentially concentrate in important juvenile salmon and estuarine habitats like eelgrass due to the influence of vegetation on sediment trapping. These data are intended for science researchers, students, policy makers, and the public. These data can be used with geographic information systems or other software to identify the distributions of eelgrass and shallow-water bathymetric features.

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DOI doi:10.5066/P98FD7DX

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