The Stimpson's surf clam (Mactromeris polynyma), also known as the Arctic surf clam, is a large, cold-water bivalve native to the North Atlantic, particularly abundant along the Canadian Atlantic coast. This species is highly valued for its sweet, firm flesh, making it a popular ingredient in sushi and sashimi, especially in Asian markets. Canada is by far the leading country in the commercial harvest of Stimpson's surf clams, with a well-developed, regulated fishery centered in the waters off Newfoundland and Labrador, Nova Scotia, and Prince Edward Island. The Canadian industry is renowned for its sustainable management practices and exports the majority of its catch to Japan and other Asian countries. While small-scale or incidental catches may occur in the United States, particularly in Maine, Canada overwhelmingly dominates the global supply of this species.
| Rank | Country | Metric Tons |
|---|---|---|
| 1 | Canada | 38,508 |
Data from FAO. 2025. Global Capture Production. In: Fisheries and Aquaculture.