Market
Frozen scad fillet is a traded frozen seafood product typically produced from small pelagic scads (Decapterus spp., Carangidae) and supplied through industrial freezing and cold-chain distribution. FAO reports global marine capture for “scads nei (Decapterus spp.)” at about 1.265 million tonnes in 2020 (about 2% of total marine capture), indicating a meaningful global supply base that is still relatively concentrated in capture fisheries. In customs statistics, scad fillets may be reported under HS heading 0304 (fish fillets and other fish meat, fresh/chilled/frozen) and can fall under “other fish fillets, frozen” lines where the species is not separately identified, limiting scad-specific trade visibility. Market outcomes are therefore closely linked to capture variability, fisheries management and IUU controls, and strict deep-frozen handling to maintain quality through export logistics.
Major Producing Countries- 인도네시아FAO regional reporting on small pelagics identifies Indonesia as a major capture source in areas where scads are a key small-pelagic group.
- 필리핀Roundscads (Decapterus spp., “galunggong”) are a major harvested pelagic fish group in the Philippines per national fisheries research and statistics references summarized by NFRDI.
- 태국FAO regional reporting on small pelagics identifies Thailand among major capture producers in areas where scads are a key small-pelagic group.
Specification
Major VarietiesDecapterus macrosoma (shortfin scad), Decapterus russelli (Indian scad), Decapterus macarellus (mackerel scad), Decapterus maruadsi (Japanese scad), Decapterus spp. (scads nei; multispecies trade usage in some fisheries/statistics)
Physical Attributes- Narrow small-pelagic fillets; common buyer specs include skin-on/skinless and boneless/with pin-bones removed (where applicable).
- Quality is sensitive to dehydration (freezer burn) and oxidation during frozen storage; glazing is used in some products to reduce surface drying.
Compositional Metrics- Net weight declarations may be assessed after deglazing when glazing is applied (commercial practice aligned with Codex quick-frozen fillet guidance).
- Temperature at the thermal centre is a core compliance parameter for quick-frozen fillets (deep-frozen at -18°C or colder).
Grades- Codex Alimentarius Standard for Quick Frozen Fish Fillets (CXS 190-1995) is a common reference point for product definition, freezing conditions, glazing water quality, hygiene, and labelling expectations.
Packaging- Export packaging commonly uses sealed inner polybags with outer corrugated cartons for frozen distribution; pack sizes and count specifications vary by buyer and channel.
- Repacking under controlled conditions followed by re-freezing is permitted under Codex quick-frozen fillet provisions when product quality is maintained.
ProcessingQuick freezing (IQF or block) designed to pass the maximum ice-crystal formation range rapidly; product held deep-frozen at -18°C or colder.Optional glazing with potable water or clean sea-water to minimize dehydration and oxidation during storage and transport.
Risks
Stock Sustainability And IUU Fishing HighScads (Decapterus spp.) are a significant global marine capture group (FAO reports about 1.265 million tonnes in 2020, around 2% of marine capture). As a capture-dependent small pelagic supply, frozen scad fillet availability and price can be disrupted by localized overfishing, weak monitoring/control, and IUU fishing, which can also create sudden trade disruptions when enforcement tightens at ports or markets.Source from fisheries with credible management/monitoring signals (e.g., documented controls and landing oversight), require vessel/landing traceability documentation, and align procurement with port-state and market measures intended to exclude IUU-derived product.
Species Identification And Traceability Medium“Scad” can describe multiple Decapterus species in commerce and some fisheries statistics aggregate “scads nei” as multispecies. Combined with broad customs headings for frozen fillets (HS 0304), this can reduce species-level transparency and increase substitution/mislabelling risk in international transactions.Specify scientific name and allowed species list in contracts, require catch documentation/traceability at lot level, and use DNA/species verification for higher-risk channels or new suppliers.
Cold Chain Integrity MediumFrozen fillets are quality-sensitive to temperature abuse, dehydration, and oxidation. Codex quick-frozen fillet guidance anchors deep-frozen handling at -18°C or colder and highlights dehydration/oxidation control; failures in reefer logistics, storage, or repacking controls can quickly degrade commercial quality and create disputes over net weight (especially if glazing is used).Enforce continuous temperature monitoring (reefer logs), define glazing and deglazed net-weight acceptance checks, and audit repacking/re-freezing controls where applicable.
Labor Rights Compliance MediumSeafood supply chains can face heightened scrutiny for forced labor and abusive working conditions in fishing operations. U.S. Department of Labor reporting highlights forced labor concerns for Thailand-caught marine fish, illustrating reputational and compliance exposure for buyers of marine capture-derived products that transit or are processed through higher-risk nodes.Implement responsible sourcing due diligence (supplier codes, worker grievance channels, independent audits where feasible) and require documentation that supports ethical recruitment and labor protections.
Sustainability- Stock sustainability risk for small pelagic scad fisheries (Decapterus spp.), including the need for effective harvest controls and monitoring.
- Illegal, unreported and unregulated (IUU) fishing risk in capture fisheries supply chains; port-state and market measures are used internationally to block IUU-derived seafood from trade.
Labor & Social- Forced labor and worker exploitation risks in parts of the global marine fishing sector; U.S. Department of Labor reporting explicitly flags Thailand-caught marine fish produced with forced labor concerns, highlighting downstream supply-chain exposure for seafood buyers.
- Migrant-worker vulnerability risks (excessive hours, document retention, and abuse allegations) in some fishing and seafood supply chains, requiring buyer due diligence.
FAQ
What does “scad” mean in frozen scad fillet trade?In many fisheries and trade contexts, “scad” can refer to multiple species within the Decapterus genus (mackerel scads/round scads) and may also appear as a multispecies category (“scads nei”). For international purchasing, it is common to control this ambiguity by specifying the scientific name(s) permitted for the product lot.
What storage temperature is typically expected for quick-frozen fish fillets in international trade?Codex guidance for quick-frozen fish fillets references the quick-freezing process being completed when the product reaches -18°C or colder at the thermal centre after stabilization and being kept deep-frozen to maintain quality during transport, storage, and distribution.