Mackerel isn’t just mackerel. Two visually similar fish dominate global trade, but they behave—and price—very differently once they leave the water. Knowing which is in your carton protects margins and lets you time purchases around peak‐fat seasons. It’s important to differenciate atlantic mackerel from pacific mackerel.
Meet the Two Heavyweights
| Common name | Latin name | Main FAO zones | Typical size | Peak‑fat window |
|---|---|---|---|---|
| Atlantic mackerel | Scomber scombrus | 27 (Northeast Atl.) 21 (NW Atl.) | 200–400 g WR | Oct–Feb (up to 25 % lipid) |
| Pacific “chub” mackerel | Scomber japonicus | 61, 67, 71 (W‑, E‑Pac.) | 250–600 g WR | May–Sept (1–10 % lipid) |
Atlantic fish bring richer fat content for smoking or grilling markets; Pacific offers steadier lean supply for canning, breaded portions and value channels.
Stock Status & Quotas – What Changed for 2025?
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Atlantic side: Coastal States capped the Northeast Atlantic TAC at 576,958 t for 2025, flat to ICES advice and down 5 % vs the pre‑COVID high. Quota shares remain under debate, adding price volatility in Q4 auctions.
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Pacific side: Chub mackerel biomass off Japan and Korea hit a multi‑decade high in 2024, pushing ex‑Quingdao WR prices 12 % below the five‑year average. The U.S. West Coast fishery keeps a precautionary 80–100 kt harvest guideline.
Buyer move: Lock Atlantic contracts early (July tenders) and keep Pacific volumes on shorter spot cycles to exploit seasonal dips.
How to Spot the Difference on the Floor
- Stripes & dots – Atlantic fish show bold, tiger‑like stripes with a clean silver belly. Pacific chub add faint dark spots below the lateral line.
- Gill‑plate colour – A bluish tint signals Atlantic origin; Pacific gill covers skew greener.
- Fat smear test – Slice behind the dorsal fin. Atlantic flesh will leak visible oil at room temp; Pacific remains relatively dry.
- Carton markings – HS 03037400 (Atlantic) vs HS 03037500 (Pacific). Mixed codes are customs red flags in the EU and West Africa.
Pricing Logic Buyers Use
| Cost driver | Atlantic | Pacific (Chub) |
|---|---|---|
| Raw‑material volatility | High—quota politics, Norwegian auctions | Moderate—large Chinese/Japanese supply base |
| Fat % premium | Yes (≥18 % fat commands +US $150–200/MT) | Rare—mostly sold on size grade |
| Fillet yield | 55–57 % WR | 50–52 % WR |
| Popular packs | WR IQF 10 kg; HGT 20 kg; 4 oz skin‑on fillet | WR 20 kg; butterflied 10 kg; canned loins |
If you’re ready to source high-quality frozen atlantic mackerel or want a custom quote, visit our Atlantic Mackerel product page to get started today. You can also check out our full guide on atlantic mackerel sourcing and market dynamics.
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