Count the individuals in each sample. Estimate the population of each species. Several different procedures may be applied to the data. Simpler but less powerful because it does not yield confidence limits is a graphical method described in below. Plot each sampling effort on this graph.
Previous catch is the sum of all previous sampling efforts.
For the first effort, it is zero. This program is based on three papers listed at the end of this handout. You should also check out the papers from the reserve desk in the library and read them. They are dense with mathematics, and for the unsophisticated may make for difficult going. Do your best.