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Shellfish Basics

Shellfish Basics. Inspection of Fish & Shellfish. Type 1 Inspection: Covers processing plants and their methods: PUFI mark given Type 2 Inspection: Covers labeling, weight, and packaging. Type 3 Inspection: Covers sanitary conditions only. Grading of Fish & Shellfish.

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Shellfish Basics

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  1. Shellfish Basics

  2. Inspection of Fish & Shellfish • Type 1 Inspection: Covers processing plants and their methods: PUFI mark given • Type 2 Inspection: Covers labeling, weight, and packaging. • Type 3 Inspection: Covers sanitary conditions only.

  3. Grading of Fish & Shellfish • Fish are graded on standards f or flavor and appearance. • Grade A: Highest quality; no defects • Grade B: Good quality • Grade C: Fairly good quality

  4. Structure of Shellfish • No bone: Hard shells cover their bodies • Two types: mollusks and crustaceans • Composed of water, vitamins, minerals, protein, and fat.

  5. Mollusks • Univalves: Have a single shell • Example: Conch

  6. Bivalves • Have two shells hinged together. • Examples: oysters, clams, mussels, scallops

  7. Cephalopods • Have a thin internal shell and tentacles, or false legs, attached to the head • Example: Octopus

  8. Crustaceans • Hard outer shell and jointed skeleton • Examples: lobster, shrimp, crabs, crayfish (crawdads) • Expensive due to the amount of work needed to produce a small amount of meat.

  9. Types of Crab • Blue crab: small 4-6 oz. crab from East Coast. Most frozen crabmeat comes from this type

  10. Soft Shell • A blue crab that has just molten or shed its shell. • Its shell is soft so it is eaten as well as the meat.

  11. Alaskan King Crab • The largest crab: 6-20 lbs. • Expensive, popular in restaurants because of the large chunks of meat.

  12. Alaskan Snow Crab • AKA spider crab. • This is sometimes used as a less expensive sub for king crab.

  13. Dungeness Crab • Found along West Coast, they range from 11/2 -4 lbs. and have very sweet meat.

  14. Stone Crab • The claws of stone crab are popular in the southeast. • To protect this species people fishing can only harvest one claw per stone crab. • They twist off the claw and put the crab back in the water

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