Burrowing Shrimp Threaten West Coast Oyster and Clam Beds as Populations Shift

Burrowing shrimp are a persistent pest for shellfish growers along the West Coast, where dense beds can reach hundreds of shrimp per square meter. These pale, mud-burrowing crustaceans excavate sediment as they dig, piling it on the surface and suffocating oysters and clams. Growers in estuaries from Washington to California have long battled the shrimp's destructive impact, but the problem is worsening as shrimp beds shift and expand into new areas. The movement of these beds poses a growing economic threat to the region's shellfish aquaculture industry, valued at hundreds of millions of dollars annually. Understanding why and where shrimp move is critical for developing management strategies that protect valuable shellfish crops while balancing the ecological role of these native species. As climate and coastal conditions change, the battle between growers and burrowing shrimp is likely to intensify.