Method for Using a CalComp 9480 Digitizer Coupled with Menu-Driven Software to Measure Amphipod Body Length and Gut Fullness

摘要

A method for measuring amphipod body length and gut fullness, using a CalComp 9480 digitizer coupled with interactive, menu-driven software, is described. In addition to having a high degree of precision and accuracy, the digitizer method constitutes a rapid and efficient route for transferring raw length data from the microscope to an on-line data file. Procedure for use of the FORTRAN-77 software program CRITTER is fully detailed and a complete listing of the program is supplied.