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United States Environmental Protection Agency
Puget Sound Georgia Basin Ecosystem
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How does this affect me?

Closures of shellfish beds are tragic from historical, ecological, economic, community, gastronomic and trade perspectives.

Historic Tribal and First Nation's Use of Shellfish

Shell at water's edgeShellfish have been a mainstay of western Washington's Indian Tribes and BC's First Nations for 12,000 years. The relative ease with which large amounts could be harvested, cured, and stored for later consumption made shellfish an important source of nutrition – second only in importance to salmon. Shellfish are used for subsistence, economic, and ceremonial purposes. Both shellfish and salmon have always been key domestic and commercial products of Indian and First Nation's economies. More than one half the Coastal First Nations in BC are involved in commercial shellfish production.

Shellfish harvested by Pacific NW tribes, First Nations and other commercial growers are highly sought after throughout the United States, Canada and worldwide. International trade is growing in importance. Tribal representatives have gone on trade missions to China and other Pacific Rim nations where Pacific Northwest shellfish – particularly geoduck – are in great demand.

Community Economic Loss

Each time a shellfish growing area closes, there are multiplier effects that strip income from our rural communities. This includes revenue loss from shellfish sales themselves, possible termination of previous contractual agreements due to supply uncertainty, and reduced income for community businesses that rely on shellfish grower's income: banks, restaurants, accountants, recreational equipment providers, health care providers, and so on.

For example, in May 2005, more than 400,000 gallons of manure from a Whatcom County dairy spilled into Drayton Harbor, which had just reopened after years of restoration work. Oysters already shipped to China had to be recalled in Hong Kong, and the Drayton Community Oyster Farm lost several thousand dollars in addition to cancelled sales for six weeks running from this one time event.7

Gastronomic and Restaurant Losses

The Puget Sound Georgia Basin is currently one of the largest producers of shellfish in North America. When supplies are interrupted due to closures, restaurants both locally and overseas are denied this treasured culinary treat. Culinary tourism and restaurant receipts generally rank only second to lodging and figure prominently in defining a sense of place through food traditions. Average visitor spending in Puget Sound for food and beverage exceeds $1.7 billion annually.8 Tourists come to the Pacific NW not only to luxuriate in our spectacular beauty, but also to enjoy our food traditions in which shellfish holds iconic status.

Photo of young girl playing on beachRecreation

Thousands of local residents and visitors enjoy digging shellfish at local beaches and shoreline environments. We are indelibly connected with our natural environment and with each loss of access and ability to share these treasures, we lose something that can never be restored. In some communities, shellfishing is a major tourism draw as well, with enhanced revenue production in lodging, food, related recreation and supplies. In 2005, Washington State Department of Fish and Wildlife collected nearly $500,000 in licensing fees for shellfish and seaweed.10 When shellfish beds are closed, revenues are reduced accordingly.

In addition, each year, thousands of people participate in shellfish celebrations that raise money for non-profits, engage communities (e.g. Oysterfest and other community festivals) and segue nicely with the growing interest in local food and connecting people with local foods and traditions.

Ecosystem Effects

Because shellfish feed on phytoplankton in the water column, they help to assimilate some of what they take in and pass on the rest as digested and undigested material that settles to bottom sediments. This helps improve water clarity, transfers nutrients (energy/food) to bottom sediments and allows greater light penetration for seagrass and other vegetated habitats. These processes also help to counteract the effects of excessive nutrient loading from human land use and waste management practices, which can lead to low levels of oxygen in marine water (no oxygen, no life). High quality shellfish beds are an important benefit and use of our beaches and estuaries and also provides an important indicator of water quality.9

Illness and Death

Consuming shellfish that is contaminated with pathogens or biological toxins can lead to fever, vomiting, and stomach cramping. Paralytic shellfish poison and other biotoxins can even prove fatal if not dealt with immediately.11


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