A windows based computer program to compute fish back-calculated lengths at age was created using Visual Basic 6.0© programming language. The objective of this project was to develop a computer program that is user-friendly and requires minimal user input to produce back-calculations. This program incorporates the familiar windows based graphical user interface and can compute up to 10,000 fish with a maximum age of 50 years. The input data can be imported from an Excel spreadsheet or manually entered directly to the program. Back-calculated lengths were computed using the traditional Lee method [ (L; = a + [ (L, - a) ( S; / Sc ) ]. Additional related statistical outputs are also included. The output data can be viewed using Excel where it can also be formatted for individual use. The program was compared with DisBcal using yellow perch age and length data. Results of the comparison were nearly identical with differences due to a rounding function of the output data. / Department of Biology

No description available.