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Clam Biomass Surveys

Available Documents

There are 14 documents currently available in the Clam Biomass Surveys portion of the website.

Assessments of shellfish stocks are mostly restricted to Manila clam surveys on Lummi Reservation beaches. The annual Manila clam surveys allow us to set sustainable harvest targets that also maximize harvest opportunity. Annual Manila clam surveys have been conducted most years since 2002.

Intertidal survey at Portage BayIntertidal survey at Portage Bay. Photo credit Emily Amos
Portage Bay 2024 Manila Clam Density MapPortage Bay 2024 Manila Clam Density Map
2025 Lummi Bay Manila Clam Density Map2025 Lummi Bay Manila Clam Density Map
2002 Clam Survey Technical Report
2MB
(2002) Harvest Management
2003 Clam Survey Technical Report
958.9KB
(2003) Harvest Management
2004 Clam Survey Technical Report
1.4MB
(2004) Harvest Management
2005 Clam Survey Technical Report
1MB
(2005) Harvest Management
2007 Clam Survey Technical Report
1.9MB
(2007) Harvest Management
2008 Clam Survey Technical Report
2.4MB
(2008) Harvest Management
2010 Clam Survey Technical Report
3.6MB
(2010) Harvest Management
2011 Clam Survey Technical Report
4.7MB
(2011) Harvest Management
2018 Clam Survey Technical Report
2.2MB
(2018) Harvest Management
2023 Clam Survey Technical Report
1.7MB
(2023) Harvest Management
2024 Clam Survey Technical Report
2.1MB
(2024) Harvest Management
Portage Bay 2024 Manila Clam Density Map
2MB
(2024) Harvest Management
2025 Clam Survey Density Maps
4MB
(2025) Harvest Management

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Sampling the Ceremonial and Subsistence catch to obtain biological data for fishery management.
Sampling the Ceremonial and Subsistence catch to obtain biological data for fishery management.
Gilbert Hillaire helps with the Lummi seapond survey.
Gilbert Hillaire helps with the Lummi seapond survey.
A sturgeon poacher encountered during bycatch monitoring.
A sturgeon poacher encountered during bycatch monitoring.
Manila clams marked for a growth and survival experiment
Manila clams marked for a growth and survival experiment

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