Pritchard Trap
The Pritchard Trap (PT) is a new, effective, and efficient trap for freshwater crayfish. The trap is designed to sit beneath cobbles in a freshwater stream for several days and upon collection the cobbles placed in the traps are examined for any freshwater crayfish present.
The Pritchard Trap (PT) is made up of a five-panel mesh bag supported by a sturdy, detachable plastic quadrat frame. This frame consists of four removable plastic pipes, each 50 cm long, connected by corner sections and attached to the mesh bag via webbing loops. The base of the mesh measures 50 cm × 50 cm, providing a total trapping area of 0.25 m². The panels of the mesh bag are 30 cm high, reinforced with durable webbing, and can be adjusted to suit different water depths.
Despite its robust construction, the mesh can be flattened during deployment for easy use. The bag itself is green, with a mesh size of 1.9 mm × 1.9 mm, allowing water and small invertebrates to pass through while effectively trapping crayfish. The quadrat frame can be easily disassembled, and the mesh bag folded for compact storage and transport.
References: Pritchard et al. 2021, The ‘Pritchard Trap’: A novel quantitative survey
$210.00
