Classification
Product TypeRaw Material
Product FormFresh
Industry PositionPrimary Aquatic Product
Raw Material
Commodity GroupShellfish (bivalve molluscs)
Scientific NamePectinidae (scallops; bivalve molluscs)
PerishabilityHigh
Growing Conditions- Coastal marine waters; many commercial species thrive in temperate regions
- Aquaculture commonly uses suspended (hanging/longline) culture or bottom lays; wild fisheries often use dredges or divers depending on region
- Production and harvesting are sensitive to water quality and harmful algal blooms that can trigger biotoxin risks and closures
Main VarietiesPecten spp. (scallops in HS 030721/030722 scope), Chlamys spp. (scallops in HS 030721/030722 scope; includes small/queen scallops), Placopecten spp. (e.g., Atlantic sea scallop, Placopecten magellanicus), Patinopecten yessoensis (Yesso scallop; major cultured species in North Pacific Asia)
Consumption Forms- Fresh/chilled shucked scallop meats
- Live in-shell scallops (mainly local/regional distribution due to short live shelf life)
- Frozen scallop meats for longer-distance trade
- Canned or further-processed scallop products in some supply chains
Grading Factors- Meat count per unit weight (e.g., meats per pound) for shucked scallops
- Adductor muscle size and integrity
- Freshness/organoleptic quality and absence of shell fragments
- Harvest-area compliance and biotoxin control status in regulated markets
Planting to HarvestSpecies- and site-dependent; for Yesso scallop culture, market-size harvest is described as typically achievable in about 2–3 years under suitable conditions.
Market
Fresh (live/fresh/chilled) scallops are a high-perishability bivalve product where market access is strongly shaped by food-safety controls for marine biotoxins and by rapid cold-chain logistics. Global scallop supply is split between large-scale aquaculture (notably in North Pacific Asia, with China and Japan prominent for key cultured species) and major wild fisheries in the North Atlantic. In UN Comtrade HS 030721 (scallops, live/fresh/chilled), 2023 exports were led by Canada, the United Kingdom, Japan, France, and the Netherlands, while major import demand concentrated in the United States, France, the Republic of Korea, Hong Kong (China), and Italy. Because chilled live product has a short shelf life, international trade often pivots between local/regional live channels and longer-distance distribution of processed (e.g., frozen) scallop meats when freshness windows are constrained.
Major Producing Countries- 중국Major global scallop aquaculture producer; key cold-water cultured species include Yesso scallop (Patinopecten yessoensis) and other scallops cultivated in temperate northern waters (FAO aquaculture references).
- 일본Major producer of Yesso scallop (Patinopecten yessoensis) and a large scallop market with both domestic consumption and export channels (FAO aquaculture references).
- 미국Hosts the Atlantic sea scallop (Placopecten magellanicus) fishery, described by NOAA as the largest and most valuable wild scallop fishery in the world.
- 캐나다Large North Atlantic scallop producer and a leading exporter in HS 030721 trade (UN Comtrade via WITS).
- 영국Important European producer/exporter in HS 030721 live/fresh/chilled scallops trade (UN Comtrade via WITS).
- 프랑스Key European producer and both a major importer and exporter in HS 030721 trade (UN Comtrade via WITS).
Major Exporting Countries- 캐나다Top exporter by value in HS 030721 (scallops, live/fresh/chilled) in 2023 (UN Comtrade via WITS).
- 영국Top exporter by value in HS 030721 in 2023 (UN Comtrade via WITS); also a major supplier to France in 2023 trade data.
- 일본Top exporter by value in HS 030721 in 2023 (UN Comtrade via WITS).
- 프랑스Top exporter by value in HS 030721 in 2023 (UN Comtrade via WITS).
- 네덜란드Among top exporters by value in HS 030721 in 2023 (UN Comtrade via WITS); also functions as a key EU seafood trading/logistics hub.
- 미국Among top exporters by value in HS 030721 in 2023 (UN Comtrade via WITS).
Major Importing Countries- 미국Top importer by value in HS 030721 in 2023 (UN Comtrade via WITS).
- 프랑스Top importer by value in HS 030721 in 2023 (UN Comtrade via WITS).
- 대한민국Among top importers by value in HS 030721 in 2023 (UN Comtrade via WITS).
- 홍콩Among top importers by value in HS 030721 in 2023 (UN Comtrade via WITS).
- 이탈리아Among top importers by value in HS 030721 in 2023 (UN Comtrade via WITS).
Specification
Major VarietiesScallops of genera Pecten (incl. many 'king/great' scallops in trade), Scallops of genus Chlamys (incl. 'queen' scallops and other small scallops in trade), Scallops of genus Placopecten (incl. Atlantic sea scallop, Placopecten magellanicus), Yesso scallop (Patinopecten yessoensis)
Physical Attributes- Edible portion in many markets is primarily the adductor muscle ('scallop meat')
- Freshness is evaluated via odor, appearance, and avoidance of dehydration; live scallops can desiccate rapidly out of water (species-dependent handling)
- Commercial sizing commonly uses a meat-count system (number of meats per pound) for shucked scallops
Grades- Food-safety compliance criteria for live bivalve molluscs in major markets include harvest-area controls and marine biotoxin limits (e.g., EU rules for live bivalves)
Packaging- Live scallops: packed to maintain viability and prevent dehydration during short distribution windows
- Fresh shucked meats: chilled, food-grade packs with strong lot/harvest-area traceability for regulatory compliance
Supply Chain
Value Chain- Harvest (dive/dredge/aquaculture) -> landing -> rapid chilling -> shucking (where applicable) -> chilled packing -> distribution (often short lead times for fresh) -> retail/foodservice
- For some cultured scallops, handling may be minimal beyond washing and shucking; longer-distance trade often shifts to frozen meats due to short shelf life of live product
Demand Drivers- Premium seafood demand in North America, Europe, and East Asia for fresh and chilled scallops
- Foodservice demand for consistent-sized scallop meats (meat-count specifications)
- Seasonal and cultural consumption peaks in key importing markets can tighten spot availability when closures occur
Temperature- Time-temperature control is a core safety and quality requirement for fishery products; scallops require rapid chilling and uninterrupted refrigeration to manage spoilage risks and maintain quality
Shelf Life- Chilled live scallop distribution is typically limited geographically because live product shelf life is short; frozen meats are used for longer-distance supply
Risks
Marine Biotoxins HighScallops (like other filter-feeding bivalves) can accumulate marine biotoxins produced during harmful algal blooms, triggering harvest-area closures, export rejections, and acute consumer health risks. Major markets set explicit toxin limits and require monitoring and controls; cooking or freezing does not reliably eliminate these toxins, so prevention depends on harvest-area management and testing.Source only from monitored/approved production areas, require documented biotoxin testing/area status, and maintain full lot/harvest-area traceability for rapid holds/recalls when closures occur.
Regulatory Compliance MediumMarket access for live/fresh/chilled scallops is tightly regulated (harvest-area classification, hygiene requirements, and marine biotoxin thresholds in key importing blocs such as the EU). Non-compliance can lead to detentions, sanitary alerts, or forced diversion into processing channels.Maintain documented compliance programs (HACCP-based controls for seafood processors; verified harvest-area classification and dispatch/purification controls where applicable).
Trade Policy MediumSeafood trade is exposed to sudden import restrictions and politically driven bans; scallop markets can be disrupted when major buyers restrict supply from a key origin (e.g., FAO GLOBEFISH notes market impacts linked to China’s import restrictions on Japanese seafood).Diversify destination markets and customer approvals, and maintain contingency channels (fresh vs frozen forms) to redirect product when border measures change.
Habitat Impacts MediumBottom-contact gears used in many wild scallop fisheries (dredges and some trawls) can disturb benthic habitats and remove habitat-forming organisms, increasing sustainability scrutiny and potential spatial management restrictions.Prefer fisheries with robust management measures (area rotations/closures, gear controls, observer coverage) and credible sustainability assurances where available.
Climate MediumOcean warming and acidification can hinder juvenile growth and affect recruitment dynamics in major scallop-producing regions, increasing inter-annual supply variability and complicating forward contracts.Use multi-origin sourcing strategies and monitor ocean/climate indicators and regional stock assessment updates for early supply-risk signals.
Sustainability- Harmful algal blooms (HABs) and marine biotoxins affecting harvest availability and requiring monitoring/closures
- Seabed habitat disturbance risk in dredge/trawl-based scallop fisheries
- Ocean warming and acidification risks for scallop growth and recruitment in key wild-fishery regions
FAQ
Why do scallop harvests get shut down for food safety?Scallops can accumulate marine biotoxins produced during harmful algal blooms. When monitoring shows toxin levels above regulatory limits, harvest areas are closed to prevent illnesses, because cooking or freezing does not reliably remove these toxins.
Which countries are the biggest traders of fresh/chilled scallops?For UN Comtrade HS 030721 (scallops, live/fresh/chilled), 2023 export leaders included Canada, the United Kingdom, Japan, France, and the Netherlands. Major import markets included the United States, France, the Republic of Korea, Hong Kong (China), and Italy.
What does “fresh scallops” mean in customs trade terms?In the Harmonized System, scallops are classified under HS heading 0307 (molluscs). “Live, fresh or chilled scallops” are reported under HS 030721, and “frozen scallops” under HS 030722.