This might be of some help... http://www.zoology.ubc.ca/~keeley/
There isen't much on the site as of yet but you could try emailing the site owner and asking him.
You mention the "tip of Vanc Island" - Are you saying that you need saltwater species? Or are there ponds up there?
No idea what is there - but if you are going native, I suggest checking the local regulations, and doing a little dipping, and see what comes up! It's fun that way too