We live in a new age. Why live in one place? Why live on land only? My dream home is an amphibious motor home. With 4g connectivity, I can wake up anywhere and dive in a lake or go fishing!
The very same technology that increases the efficiency of fishing boats also makes populations smaller. There are ocean trawlers that scour great areas of the oceans. The problem is with the target fish missing, other fish that may be less desirable take over, at least or a time
I don't know, but I do know YOU will be endangered if you swim with them! ;)
Actually pond water has been on/in the ground much longer so it will usually have a lot more dissolved minerals in it. Here is a link to learn more. pond water