Study

Crayfish management for Swiss waters

  • Published source details Hefti D & Stucki P (2006) Crayfish management for Swiss waters. Bulletin Français de la Pêche et de la Pisciculture, 380-81, 937-950.

Actions

This study is summarised as evidence for the following.

Action Category

Procambarus crayfish control: Trapping combined with encouragement of predators

Action Link
Control of Freshwater Invasive Species
  1. Procambarus crayfish control: Trapping combined with encouragement of predators

    A before-and-after study conducted between 1997 and 2001 in ponds in Switzerland (Hefti & Stucki 2006) found that the introduction of natural predators in combination with trapping lowered numbers of the red swamp crayfish Procambarus clarkii. Over a period of four years, the number of crayfish fell from 10,000 to 1,000. Approximately 15,000 crayfish were caught in total. Each night, 0.7-3.4 crayfish were caught/trap. From 1997 to 1999, the natural predators, eel Anguilla anguilla, and pike Esox Lucius, were put in the pond along with 7,000 traps.

     

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