Contents

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  1. Introduction

  2. Organisation of destruction operations
    • 2.1  Action plan
    • 2.2  Selection of destruction site
    • 2.3  Order of destruction

  3. Methods of destruction

    • 3.1 Choice of method
      • 3.1.1    Type of aquatic animal
      • 3.1.2    Number and size of aquatic animals to be destroyed
      • 3.1.3    End use of destroyed aquatic animals
      • 3.1.4    Potential for zoonoses
      • 3.1.5    Type of system
      • 3.1.6    Occupational health and safety
      • 3.1.7    Ethical concerns

    • 3.2 Confirming death
      • 3.2.1    Finfish
      • 3.2.2    Molluscs
      • 3.2.3    Crustaceans

    • 3.3 Physical methods of destruction
      • 3.3.1    Stunning
      • 3.3.2    Pithing
      • 3.3.3    Hypothermia
      • 3.3.4    Cooking (hyperthermia)

    • 3.4 Chemical methods of destruction
      • 3.4.1    The eugenol family of chemicals
      • 3.4.2    Benzocaine hydrochloride
      • 3.4.3    Rotenone
      • 3.4.4    S-fenvalerate
      • 3.4.5    Sodium hypochlorite
      • 3.4.6    Other chemicals and piscicides
      • 3.4.7    Environmental considerations

  4. Preferred methods of destruction for aquatic animals

    • 4.1 Finfish
      • 4.1.1    Finfish in ocean, lake or river systems (open systems)
      • 4.1.2    Finfish in sea and lake cages (semi-open systems)
      • 4.1.3    Finfish in ponds and raceways (semi-closed systems)
      • 4.1.4    Finfish in recirculation systems, including aquariums (closed systems)

    • 4.2 Crustaceans
      • 4.2.1    Wild crustaceans (open systems)
      • 4.2.2    Farmed crustaceans in sea/lake cages (semi-open systems)
      • 4.2.3    Farmed crustaceans in ponds, raceways or flow-through tanks (semi-closed systems)
      • 4.2.4    Farmed crustaceans in hatcheries and recirculation systems (closed systems)
    • 4.3 Molluscs
      • 4.3.1    Wild molluscs (open systems)
      • 4.3.2    Farmed molluscs in racks or cages (semi-open systems)
      • 4.3.3    Farmed molluscs in pump-ashore systems (semi-closed systems)
      • 4.3.4    Farmed molluscs in recirculation systems (closed systems)
Last reviewed:
06 Nov 2009
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