help with spritesheet

Hi folks 
I'm not a game developer, but I'm working on a project to clone Super Mario, and thanks to this site I was able to get some images

I have questions in regards to the sprites 
i downloaded this sheet of Mario https://www.spriters-resource.com/nes/su...eet/50365/

and as you can see it's one of Mario at different locations


1. Do I need to separate them per row 

2. Should i also separate them per activity i.e. running/climbing/swimming / etc?