FISH MEASURING BOARD FOR RACIAL INVESTIGATIONS


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Authors

  • A Noble Central Marine Fisheries Research Institute, Cochin

Abstract

To measure the linear dimensions other than the total length of a fish
for racial investigations, a board is designed and got fabricated. It has a mirror
base and a half metre scale. There is a grooved wheel and two pulleys at its
back, carrying a steel tape with a needle wire fixed at its zero. When the
wheel is rotated the tape runs from left to right and the needle rides over the
fish on the board. The tape gives the measurement and the rider helps to
pin-point it avoiding parallax error. The board is waterproof, inexpensive and
easy to make.

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Author Biography

  • A Noble, Central Marine Fisheries Research Institute, Cochin
    Central Marine Fisheries Research Institute, Cochin

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How to Cite

Noble, A. (2011). FISH MEASURING BOARD FOR RACIAL INVESTIGATIONS. Indian Journal of Fisheries, 20(1), 216-218. https://epubs.icar.org.in/index.php/IJF/article/view/12377