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Head Molds

Two sizes of head mold, and a head mold base which is available for those wishing to make their own head molds or tagging jigs. The needle projects through the hole visible in the center of the head-mold base.

Head molds are designed to position a fish correctly for tag injection. Head molds are specific to a particular size and species of fish.

A wide range of ready-made head molds are available from NMT, as shown in the table below. The size ranges of the molds listed overlap slightly and the size stated is the  middle of the range for which the individual mold is suitable. For example steelhead from a little smaller than 80 per pound (6g) to a little larger than 2 fish per pound (227 g) can be accommodated by the available range.

Head molds for species or sizes other than those listed below can be obtained in two ways. NMT can supply a head mold fabrication kit containing all supplies and instructions to make head molds. Head mold bases are also available for customers supplying their own materials.  Alternatively, NMT can manufacture custom head molds based on specimens supplied by the customer.

For brown trout (Salmo trutta), head molds for Atlantic salmon (but one size larger) are generally suitable.

Stock Head Mold Sizes

Northwest Marine Technology, Inc.                   (360) 468 - 3375

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Last edited: 02 Dec 2008