Evaluating subsistence shellfish beaches for future enhancement projects

The project aims to evaluate selected subsistence beaches near seven native communities in south central Alaska. The Chugach Regional Resources Commission through funding by the Exxon Valdez Oil Spill Project 97-131 conducted extensive beach surveys identifying shellfish populations and biological and water quality factors for beaches identified by local residents as historical sources of shellfish namely cockles, littleneck and butter clams. Those beaches were then seeded and growth and mortality studies continued for several years. This project aims to re -survey these beaches and document changes, if any, and provide a baseline to determine if the beaches are still suitable for enhancement. Of the original beaches surveyed only three areas near Port Graham, Tatitlek and Chenega were successful with efforts in the 1990’s. Updated technology, including enhanced seeding and predator control efforts warrants another look at these beaches and their suitability for robust enhancement. Researchers will use identical techniques employed in 1990 to ensure equal assessment but will also include newer technologies and strategies employed by PSI which conducts similar work throughout the PNW. Once evaluated, beaches will be selected for future outplant and enhancement work. Understanding and analyzing the characteristics of intertidal areas is requisite for building a successful enhancement project.

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