Sea Surveyor, Inc
SINCE 1985



Precision marine surveys for the engineering community



Marine Vegetation

Side ScanSea Surveyor has been conducting marine vegetation surveys for environmental companies and regulatory agencies since the early 1990′s. With our extensive experience and new high-resolution sonar equipment, Sea Surveyor can produce highly-accurate charts showing the spatial distribution and density of different species of marine vegetation, as well as water depth, sediment type, and size/shape of reefs.

Sea Surveyor locates and delineates reefs and areas of marine vegetation using a high-frequency side-scan sonar and a survey-grade fathometer. After the sonar data is interpreted aboard the survey boat, a detailed chart is produced that allow divers to immediately confirm the vegetation type, vegetation density, and reef height.



2012: Sonar survey in Richmond Harbor and Port of Oakland to map the spatial distribution and density of eelgrass beds in support of Channel Deepening Projects. Client: Corps of Engineers, San Francisco District

2000: Side-scan sonar surveys along the San Diego County coastline to locate reefs and chart the distribution and density of marine vegetation. Client: San Diego Association of Governments

1999: Diver surveys at US Coast Guard Station, San Diego for pre-dredge assessment of marine vegetation. Client: United States Coast Guard, Civil Engineering Unit

1996: Side-scan sonar and fathometer survey of the Port of Richmond Terminal 4 in San Francisco Bay to identify and quantify areas with marine vegetation. Client: Wickland Oil Company




Sonar Image of Artificial Reef with Sand Waves


Side-Scan Record showing Natural Reef with Giant Kelp (Macrocystis)










Habitat Map1

Benthic Habitat Map



Fathometer Record showing
Seafloor with Kelp in Water