Manila Clams

Manila Clam image
Common Name Manila Clams
Market Name littleneck clam
Scientific name Venerupis philippinarum, Tapes phillipinarum

Sourcing Summary


1-2.5 in.

Manila clams are generally sold live year-round, although some quantities may be frozen whole. These small clams tend to be soft and sweet in taste. Buyers generally recommend avoiding buying clams by the bushel, a common measure used on the East Coast, because the definition of a bushel can vary among suppliers. If buying by the bushel, check to make sure that the shipments are what was paid for. The best Manila clam shelf life and meat yield is in the winter time, which coincides with reduced prices due to lower demand from coastal resorts, according to some buyers. After the clams spawn in the summer, shelf life drops off.

Product Forms

Product Forms
Half Shell
Product Forms
Half Shell
Raw Shucked

Fresh Seasonal Availability


Culinary Composition



Cooking Methods

Advisory Concern

Paralytic Shellfish Poisoning


Nutrition facts

Serving Size: 100g
Amount per serving
Calories 74
Total Fat 1g
Cholesterol 34mg
Sodium 56mg
Carbohydrates 0g
Protein 13g

Conservation Criteria - Wild

Conservation Criteria - Farmed


Water quality is monitored by a national shellfish sanitation program. Manila clam aquaculture production is well-managed, according to the Monterey Bay Aquarium.

Habitat Impacts

Clam farms are usually located in protected beaches, inlets, and estuaries that have been registered with a shellfish authority. On the U.S. Pacific coast, Manila clams are farmed from cultured beds that have received a national permit through the U.S. Army Corps of Engineers. In British Columbia, Manila clams are cultured and harvested from wild beds by hand.


Shellfish are filterfeeders so they generally don’t require additional feed beyond seawater. Some farmers may add some algae as feed but clams can actually lower the levels of nitrogen, phosphorous, and other particles in water, effectively cleaning it. As a result, no controls are necessary for effluent from Manila clam farming operations.

Disease, Pathogen and Parasite Interaction

The majority of farming for clams occurs with the native range of individual species of clams, and although the grow-out phase for clams occurs in open systems (coastal areas and estuaries), the risk to wild stocks is therefore considered low. Additionally, there is little chance of escape by juvenile or adult clams since they are usually secured by netting &/or bags. 

Escapes and Introduced Species

Although the species is native to Japan, Manila clams have been farmed along the Pacific coast of U.S. and Canada since the 1930s so there are no negative impacts on native ecosystems. Manila clams are farmed at high densities, but these volumes do not surpass what the beaches can handle. However, outside pollution and contamination from bacteria as well as brown tides have forced beach closures, causing farms to close as well. The mesh netting used to deter predators is not considered harmful. Manila clams are usually collected with tongs, rakes, and handheld dredges that don’t harm the seafloor the way large hydraulic dredges used for collecting other clams can, according to the Seafood Choices Alliance and the Monterey Bay Aquarium.

Name Country State / Province
A&R Seafood Company United States California
Albion Farms & Fisheries Canada British Columbia
Bee Islets Growers Corp. Canada British Columbia
Catalina Offshore Products United States California
Catanese Classic Seafood United States Ohio
Chelsea Farms United States Washington
City Fish Canada Alberta
Clipper Ship, Inc. United States Washington
Coast Seafoods Company United States Washington
Codfathers Seafood Market Canada British Columbia
DiCarlo Seafood Company United States California
Fanny Bay Oysters Canada British Columbia
Flying Fish Company United States Oregon
Hudson Valley Seafood United States New York
J.J Brenner Oyster Co. United States Washington
Jamestown S'Klallam Tribe United States Washington
Jones Family Farms United States Washington
Little Skookum Shellfish Growers, Inc. United States Washington
Lusamerica Foods, Inc. United States California
Marinelli Shellfish Co. United States Washington
Marx Foods United States Washington
McRoberts Sales Co., Inc. United States Florida
Mikuni Wild Harvest United States Washington
Monterey Fish Market United States California
National Fish & Oyster Company United States Washington
Nisbet Oyster Co., Inc. United States Washington
Northwest Fresh Seafood Company United States Oregon
Ocean Beauty Seafoods LLC United States Washington
Okeover Organic Oysters Canada British Columbia
OM Seafood Company United States Oregon
Organic Ocean Seafood Inc. Canada British Columbia
Out Landish Shellfish Guild Canada British Columbia
Pacific Harvest Seafoods United States California
Penn Cove Shellfish, LLC. United States Washington
Pike Place Fish Market United States Washington
Royal Hawaiian Seafood United States California
Sailor's Seafoods Canada British Columbia
Samuels & Son Seafood Company, Inc. United States Pennsylvania
Sea Forager Seafood United States California
Sea-Mar Shellfish Co., LLC United States Washington
Seattle Fish Company United States Colorado
Seattle Fish Company - Kansas City United States Missouri
Smokey Bay Seafood Company, Ltd. Canada British Columbia
Taylor Shellfish Farms, Inc United States Washington
The Fish Guys Inc. United States Minnesota
The Lobster Place Wholesale Seafood United States New York
Vital Choice Wild Seafood & Organics United States Washington
WildCatch Seafood Products LLC United States Washington