Biostatistics is not my strong suit. I struggled with it during my undergrad years and only with much persistence and patience from my biostats lecturer did I manage to get a pass. For my dissertation, I think my supervisor was aware that I had an aversion towards biostats so we kinda skirted around it. Thank goodness the research committee responsible for passing my viva deemed my results and discussion sufficient enough to let it slide without any quantitative analysis.
For my M.Sc. thesis however, one of my reviewers pointed out how I had more than enough data to do simple statistics. Alas, my university did not have SPSS which I was used to so I had to do most of my calculations manually via Excel. As I have mentioned in my first sentence, I am a biostats n00b so thank God for YouTube and awesome instructors sharing on there!
Besides Shannon and Smith & Wilson, I also used Margalef which was easy enough without having to look it up on the tube.
Much later on, I was pointed towards PAST, a freeware “with functions for data manipulation, plotting, univariate and multivariate statistics, ecological analysis, time series and spatial analysis, morphometrics and stratigraphy”. It is easier compared to SPSS and all it took to calculate the more commonly used biodiversity indices was just a click of the mouse. It is also able to do multivariate tests like ANOSIM and SIMPER which was initially suggested by the aforementioned reviewer but I had no way of doing. Now, I can! All that is needed is to read up the manual to find out how I should arrange my data so that this awesome software can calculate for me. :D