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Abstract

This measuring tool permits the measurement of all critical morphological characteristics of fish, including the new ones identified by the author in May 2005*, thereby allowing for the determination of gender (sex). The device incorporates three measurement scales in metric and standard units and a calibrated gender bar. In combination, these permit the determination of sex of a fish at any size, any age and at any time of the year. There are several variations of the device, which include: 1. Placement of the measuring arm in relation to the measurement scales and its size (to accommodate larger or smaller fish). 2. Variations of the range for male and female fish on the gender bar. 3. Inclusion of log-log scales for statistical applications. Clary, S.L., 2005. Age and Morphological Differences between Male and Female Kokanee Salmon, Fish and Wildlife Service Conservation Library, US Dept. of the Interior, Washington, D.C.

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First Claim