• About SEACOR
• Study Methods
• Findings – Alsea Bay
• Findings – Coos Bay
• Findings – Netarts Bay
• Findings – Siletz Bay
• Findings – Tillamook Bay
• Findings – Yaquina Bay
• Clamming maps and publications
  

Coos Bay

Printer friendly Coos Bay clamming maps (pdfs)

• Butter clams
• Cockle clams
• Gaper clams
• Littleneck clams
  
  
• SEACOR Coos Bay brochure (pdf) - with clamming maps and burrow hole identification pictures
  
  
• Coos Bay Interactive map (42mb pdf ) - display various species and environmental factors.
  • Instructions on how to use the interactive map (pdf)

Tillamook

Printer friendly Tillamook Bay clam maps (pdfs)

• Bay Ocean Flat
• Garabaldi Flat
• Middle Flat
  

Where to Harvest Bay Clams: Tillamook Bay

Directions to Tillamook Bay clamming access points

Netarts

Printer friendly Netarts Bay clam maps (pdfs)

• Happy Camp
• Westside
  • Butter Clams and Cockles
  • Gaper Clams and Native Littleneck Clams
• Eastside
  • Butter Clams and Cockles
• Gaper Clams and Native Littleneck Clams

Where to Harvest Bay Clams: Netarts Bay

Directions to Netarts Bay clamming access points

Yaquina Bay

Printer friendly Yaquina Bay clamming maps

• Breakwater Flat
• Bridge Flat
• Idaho Flat

Where to Harvest Bay Clams: Yaquina Bay

Directions to Yaquina Bay clamming access points

SEACOR posters from scientific meetings (pdfs)

• A survey of bivalve recruitment in Coos Bay estuary
  
  
• Description and shell repair rate of experimentally damaged young Gaper clams
  
  
• A comparison of field estimates vs. digital evaluation of percent cover of SAV and substrate in Tillamook Bay, OR
  
  
• Digging up trends in Coos Bay clam abundance: A comparison of historical and recent survey methods and data
  
  
• A study on the accuracy of gaper clam burrow hole counts
  
  
• Potential effects of non-native eelgrass on bay clam populations in Netarts Bay, Oregon
  
  
• Four decades of subtidal clams in Tillamook Bay, OR
  
  
• How sediment grain size, eelgrass, and clams relate in Netarts Bay, OR
  
  
• Spatial comparison of bay clam morphometrics and age structure

Other Publications

• Yaquina Bay Subtidal Survey: 2026 Data Summary for Bay Clam Populations D’Andrea, A. F. 2026. Oregon Department of Fish and Wildlife. 11 p.
  
  
• Information Report number 2014-09: Ainsworth, J. C., A. F. D’Andrea, M. Vance, S. D. Groth, and E. A. Perotti. 2014. Status of Oregon bay clam fisheries, stock assessment, and research. Oregon Department of Fish and Wildlife, Information Report Series, Fish. No. 2014-09.  111 p.
  
  
• Catalog of the juvenile clams and adult micro clams of the lower Coos Bay estuary
  
  
• A comparison of external and internal aging methods for the Cockle clams

Contact the SEACOR project via e-mail at:
ODFW.SEACOR@odfw.oregon.gov